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WO2020124563A1 - 无线充电方法、待充电设备、无线充电装置及存储介质 - Google Patents

无线充电方法、待充电设备、无线充电装置及存储介质 Download PDF

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Publication number
WO2020124563A1
WO2020124563A1 PCT/CN2018/122701 CN2018122701W WO2020124563A1 WO 2020124563 A1 WO2020124563 A1 WO 2020124563A1 CN 2018122701 W CN2018122701 W CN 2018122701W WO 2020124563 A1 WO2020124563 A1 WO 2020124563A1
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WO
WIPO (PCT)
Prior art keywords
charging
wireless charging
battery
current
voltage
Prior art date
Application number
PCT/CN2018/122701
Other languages
English (en)
French (fr)
Inventor
万世铭
Original Assignee
Oppo广东移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to CN201880098988.6A priority Critical patent/CN113169561B/zh
Priority to EP18944066.2A priority patent/EP3893352A4/en
Priority to PCT/CN2018/122701 priority patent/WO2020124563A1/zh
Publication of WO2020124563A1 publication Critical patent/WO2020124563A1/zh
Priority to US17/348,700 priority patent/US20210313822A1/en

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
    • H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/80—Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/007—Regulation of charging or discharging current or voltage
    • H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters

Definitions

  • the embodiments of the present application relate to the technical field of wireless charging, and in particular, to a wireless charging method, a device to be charged, a wireless charging device, and a storage medium.
  • the wireless charging technology originates from the wireless energy transmission technology, and can be divided into two methods: low-power wireless charging and high-power wireless charging.
  • the low-power wireless charging often adopts the electromagnetic induction type, such as the Qi method for charging the mobile phone;
  • the high-power wireless charging often adopts the resonance type to transfer the energy from the wireless charging device to the equipment to be charged.
  • Embodiments of the present application provide a wireless charging method, a device to be charged, a wireless charging device, and a storage medium.
  • the wireless charging device and the device to be charged are wirelessly charged, the problem of heat generation during charging can be solved, and the efficiency of wireless charging can be greatly improved.
  • An embodiment of the present application provides a wireless charging method, which is applied to a device to be charged, the device to be charged is configured with a wireless charging receiving circuit, and the method includes:
  • the wireless charging device sends an adjustment request to the wireless charging device; wherein the adjustment request carries the target charging power and/or the target charging current;
  • An embodiment of the present application provides a wireless charging method, which is applied to a wireless charging device.
  • the wireless charging device is configured with a wireless charging transmitting circuit.
  • the method includes:
  • When performing wireless charging receive an adjustment request sent by a device to be charged; wherein the adjustment request carries a target charging power and/or a target charging current;
  • An embodiment of the present application provides a wireless charging method, a device to be charged, a wireless charging device, and a storage medium.
  • the wireless charging method is applied to a device to be charged, wherein the device to be charged is configured with a wireless charging receiving circuit, and the above wireless charging
  • the method includes: during wireless charging, the device to be charged detects the battery charging voltage and/or battery charging current, and simultaneously detects the output current corresponding to the wireless charging receiving circuit; determining the target charging power according to the battery charging voltage and/or battery charging current, and Determine the target charging current according to the output current; send an adjustment request to the wireless charging device; where the adjustment request carries the target charging power and/or target charging current; receive the adjusted wireless charging signal sent by the wireless charging device, and according to the adjusted wireless Charging signal for wireless charging.
  • the device to be charged determines the target charging power and the target charging current according to the battery charging voltage and/or battery charging current and the output current of the wireless charging receiving circuit respectively, and then can charge the wireless
  • the device sends an adjustment request carrying the target charging power and/or target charging current, and receives the adjusted wireless charging signal sent by the wireless charging device, and performs wireless charging and wireless charging according to the adjusted wireless charging signal, so that charging can be achieved Power adjustment, this method of feeding back the battery charging voltage and/or battery charging current and the output current of the wireless charging receiving circuit to the wireless charging device to adjust the charging power in real time, which can be obtained by feeding back the battery charging parameters.
  • the output current of the wireless charging receiving circuit can be fed back to ensure that the voltage difference is small, so that when the wireless charging device and the device to be charged are wirelessly charged, the problem of charging heating can be solved, and the wireless can be greatly improved. Charging efficiency.
  • Figure 1 is a schematic diagram of the realization of wireless charging
  • FIG. 2 is a schematic diagram 1 of implementation of wireless charging in an embodiment of the present application.
  • FIG. 3 is a schematic flowchart 1 of a method for implementing a wireless charging method according to an embodiment of the present application
  • FIG. 4 is a schematic diagram 2 of implementing wireless charging in an embodiment of the present application.
  • FIG. 5 is a second schematic flowchart of an implementation method of a wireless charging method according to an embodiment of the present application.
  • FIG. 6 is a third schematic flowchart of an implementation process of a wireless charging method according to an embodiment of the present application.
  • FIG. 7 is a schematic structural diagram of a composition of a device to be charged according to an embodiment of this application.
  • FIG. 8 is a schematic structural diagram of a wireless charging device according to an embodiment of the present application.
  • the current wireless charging technology standard still has a fixed output of 5V, 1A or 9V, 1.2A to the device to be charged.
  • the device to be charged also needs to add a charging management module to charge the battery, and there will be problems with efficiency and heat generation.
  • the wireless charging technology originates from the wireless energy transmission technology.
  • the wireless charging methods are mainly divided into three types: electromagnetic induction (or magnetic coupling), radio wave, and electromagnetic resonance.
  • the mainstream wireless charging standards include the Qi standard, the Power Matters Alliance (PMA) standard and the Wireless Power Alliance (Alliance for Wireless Power, A4WP), etc.; both the Qi standard and the PMA standard use electromagnetic induction for wireless
  • the A4WP standard uses electromagnetic resonance for wireless charging.
  • the wireless charging technology for the device to be charged uses an electromagnetic induction type, and a magnetic field is used to transfer energy between the wireless charging device and the device to be charged.
  • the battery in the charging device is wirelessly charged, making charging more convenient.
  • the fixed frequency mode of the wireless charging operation that is, the working frequency of the wireless charging transmitting circuit of the wireless charging wireless charging device is constant.
  • the wireless charging system controls the output power of the wireless charging receiving circuit by adjusting the input voltage of the wireless charging transmitting circuit, since the transmitting and receiving coils are usually 1:1, the output voltage of the wireless charging receiving circuit and the input voltage of the wireless charging transmitting circuit
  • the relationship is basically 1:1, so when performing wireless charging, the purpose of adjusting the output voltage of the wireless charging receiving circuit can be achieved by directly adjusting the input voltage of the wireless charging transmitting circuit.
  • FIG. 1 is a schematic diagram of an implementation of a wireless charging method.
  • the wireless charging system 10 includes a power supply device 110, a wireless charging device 120, and a device to be charged 130.
  • the wireless charging device 120 may be, for example,
  • the device to be charged 130 may be, for example, a terminal.
  • the output voltage and output current of the power supply device 110 are transmitted to the wireless charging device 120.
  • the wireless charging device 120 may convert the output voltage and output current of the power supply device 110 into a wireless charging signal (electromagnetic signal) through an internal wireless charging transmitting unit 121 for transmission.
  • the wireless charging transmitting unit 121 may convert the output current of the power supply device 110 into alternating current, and convert the alternating current into a wireless charging signal through a transmitting coil or a transmitting antenna.
  • the device to be charged 130 may receive the wireless charging signal transmitted by the wireless charging transmitting unit 121 through the wireless charging receiving unit 131 and convert the wireless charging signal into the output voltage and output current of the wireless charging receiving unit 131.
  • the wireless charging receiving unit 131 can convert the wireless charging signal transmitted by the wireless charging transmitting unit 121 into alternating current through a receiving coil or a receiving antenna, and rectify and/or filter the alternating current to convert the alternating current into wireless charging The output voltage and output current of the receiving unit 131.
  • the wireless charging device 120 may pre-negotiate the transmission power of the wireless charging transmitting unit 121 with the device to be charged 130.
  • the output voltage and output current of the wireless charging receiving unit 131 are generally 5V and 1A.
  • the output voltage and output current of the wireless charging receiving unit 131 are generally 9 V and 1.2 A.
  • the output voltage of the wireless charging receiving unit 131 is not suitable to be directly loaded across the battery 133, it is necessary to perform constant voltage and/or constant current control through the charging management unit 132 in the device to be charged 130 to obtain the device to be charged 130 The expected charging voltage and/or charging current of the battery 133 inside.
  • the charging management unit 132 may be used to transform the output voltage of the wireless charging receiving unit 131 so that the output voltage and/or output current of the charging management unit 132 meets the requirements of the charging voltage and/or charging current expected by the battery 133.
  • the charging management unit 132 may be, for example, a charging integrated circuit (IC), a step-up circuit or a low-dropout linear regulator (LDO), or the like.
  • the charging management unit 132 is limited by the reason for the low power conversion efficiency (also referred to as energy conversion efficiency, or circuit conversion efficiency), so that the electrical energy of the unconverted portion is lost in the form of heat. This part of the heat will be focused inside the device 130 to be charged.
  • the design space and heat dissipation space of the device to be charged 130 are very small (for example, the physical size of the mobile terminal used by the user is getting lighter and thinner, and a large number of electronic components are densely arranged in the mobile terminal to improve the performance of the mobile terminal), which This not only increases the difficulty of designing the charging management unit 132, but also makes it difficult to remove the heat focused in the device to be charged 130 in time, thereby causing an abnormality of the device to be charged 130.
  • the wireless charging device 120 may output charging power in a low-voltage and large-current manner, for example, using 5V/4A charging power.
  • the wireless charging transmitting unit 121 can generate a wireless charging signal based on 5V/4A, and accordingly, the wireless charging receiving unit 131 can convert the wireless charging signal into an output voltage/output current of 5V/4A, and 4A
  • the large charging current will cause the transmitting coil of the wireless charging transmitting unit 121 and the receiving coil of the wireless charging receiving unit 131 to generate greater heat during the transmission of electric energy.
  • the heat generated during charging will affect the charging speed, product life, and also reduce product reliability.
  • a method of low charging power may be adopted.
  • the wireless charging device 120 only outputs charging power of up to 7.5 W to charge the charging device 130.
  • the charging speed is slow, and it takes a long time to fully charge the device 130 to be charged.
  • the wireless charging device 120 in order to speed up the charging speed, increases the charging power (for example, increases 7.5W to 10W) for wireless charging.
  • the charging power for example, increases 7.5W to 10W
  • heat of the coil or heat of the conversion circuit 130 is inevitably caused.
  • the distance between the wireless charging device 120 and the device to be charged 130 is usually very small, and the heat-generating coil of the wireless charging device 120 will transfer heat to the device to be charged 130.
  • the heat of the coil and the conversion circuit of the device 130 will be transferred to the battery to a certain extent, and the battery's own heat during the charging process will make the temperature of the battery easily exceed the safe charging range.
  • an embodiment of the present application provides a wireless charging system, which may include a wireless charging signal transmitting device (eg, the aforementioned wireless charging device) and a wireless charging signal receiving device (eg, the aforementioned to-be-charged) equipment).
  • the wireless charging signal transmitting device and the wireless charging signal receiving device can perform wireless communication, and the transmission power of the wireless charging signal transmitting device can be adjusted based on the feedback information sent by the wireless charging signal receiving device, so that the wireless charging signal is transmitted
  • the transmission power of the device matches the current charging voltage and/or charging current required by the battery. Therefore, the wireless charging power and the charging speed can be increased according to the charging demand of the wireless charging signal receiving device.
  • the wireless charging signal receiving device can also feedback the output current of the wireless receiving circuit, so that the wireless charging signal transmitting device can be based on the feedback information of the output current of the wireless receiving circuit To adjust the transmit power so that the output current of the wireless receiving circuit meets the preset conditions.
  • the output current of the wireless receiving circuit is controlled by the transmitting device of the wireless charging signal, so that the heating of the wireless transmitting circuit (which includes the transmitting coil) and the wireless receiving circuit (which includes the receiving coil) can be controlled to reduce the heating during the charging process. Therefore, compared with the above charging methods, the duration of high-power wireless charging can be extended, the charging speed can be increased, and the charging time can be shortened.
  • the wireless charging method provided by the present invention can be applied to a wireless charging system, where the wireless charging system may include a wireless charging device, a device to be charged, and a power supply device.
  • the power supply device may be an adapter, a mobile power supply, or a computer.
  • the output current of the power supply device may be constant direct current, pulsating direct current, or alternating current;
  • the wireless charging device may be configured with a voltage conversion circuit, a wireless charging transmitter circuit, and a processor;
  • the charging device may be configured with a wireless charging receiving circuit, a charging management module battery, and a processor. Further, in the wireless charging system, the wireless charging device and the device to be charged can perform wireless communication to realize data transmission.
  • a wireless charging method provided by the present invention adjusts the transmission power, voltage and current of wireless charging in real time according to the battery charging voltage and/or battery charging current and the output current of the wireless charging receiving circuit to control the wireless charging receiving circuit On the output voltage, improve the charging efficiency while controlling the heating during wireless charging.
  • FIG. 2 is a schematic diagram 1 for implementing wireless charging in an embodiment of the present application.
  • the wireless charging system 20 in the embodiment of the present application includes: a power supply device 210, a wireless charging device 220, and a device to be charged 230.
  • the power supply device 210 is used to provide power to the wireless charging device 220.
  • the power supply device 210 may include: a rectifier circuit, a transformer circuit, a control circuit, and a charging interface, etc., which can convert an alternating current input into a direct current output for supply to the wireless charging device 220.
  • the power supply device may be an adapter, a power bank, or a car power supply.
  • the power supply device 210 may also directly provide AC power to the wireless charging device 220.
  • the power supply device 210 may be an AC power supply.
  • the wireless charging device 220 further includes a circuit or module for converting AC power to DC power, for example, a rectification filter circuit and a DC/DC conversion unit.
  • the wireless charging device 220 is used to convert the direct current or alternating current provided by the power supply device 210 into an electromagnetic signal and perform power transmission in a wireless manner.
  • the wireless charging device 220 may include a voltage conversion circuit 221, a wireless charging transmitting unit 222, and a first control unit 223.
  • the composition structure of the wireless charging device 220 shown in FIG. 2 does not constitute a limitation on the wireless charging device, and the wireless charging device may include more or fewer components than shown, or combine a certain Components, or different component arrangements.
  • the power supply device 210 can be an ordinary adapter, a voltage regulator adapter (that is, the adapter itself can adjust the size of the output voltage), or even a mobile power supply; if the power device 210 is a voltage regulator adapter, then
  • the wireless charging device 220 can eliminate the voltage conversion circuit 221.
  • the voltage conversion circuit 221 is used to perform direct current/direct current (DC/DC) voltage conversion, mainly to adjust the output voltage of the power supply device 101 to a fixed voltage value and provide it to the wireless charging transmitting unit 222.
  • the wireless charging transmitting unit 222 is configured to convert the DC power provided by the voltage conversion circuit 221 or the DC power provided by the power supply device 210 into AC power that can be coupled to the transmitting coil, and convert the AC power into an electromagnetic signal through the transmitting coil for transmission.
  • the wireless charging transmitting unit 222 may include: an inverter unit and a resonance unit.
  • the inverter unit may include a plurality of switch tubes, and the size of the transmit power can be adjusted by controlling the on-time (ie, duty cycle) of the switch tubes.
  • the resonance unit is used for transmitting electrical energy.
  • the resonance unit may include a capacitor and a transmitting coil. By adjusting the operating frequency of the resonance unit, the size of the transmission power of the wireless charging transmission unit 222 can be adjusted.
  • the wireless charging device 220 may be a wireless charging base or a device with an energy storage function.
  • the wireless charging device 220 is a device with an energy storage function, it also includes an energy storage module (for example, a lithium battery 235), which can obtain electrical energy from an external power supply device 210 and store it.
  • the energy storage module can provide electric energy to the wireless charging and transmitting unit 222.
  • the wireless charging device 220 can obtain electrical energy from the external power supply device 210 in a wired or wireless manner.
  • a wired method for example, is connected to the power supply device 210 through a charging interface (for example, a Type-C interface or a USB interface, etc.) to obtain electrical energy.
  • the wireless charging device 220 may further include a wireless charging receiving unit 231, which may obtain power from a device having a wireless charging function in a wireless manner.
  • the first control unit 223 is used to control the wireless charging process.
  • the first control unit 223 may communicate with the power supply device 210 to determine the output voltage and/or output current of the power supply device.
  • the first control unit 223 may also communicate with the device to be charged 230 to implement charging information (eg, battery 235 voltage information, battery 235 temperature information, charging mode information, etc.) in the device to be charged 230, and perform wireless charging Determination of the charging parameters (eg, charging voltage and/or charging current), etc.
  • charging information eg, battery 235 voltage information, battery 235 temperature information, charging mode information, etc.
  • the wireless charging device 220 may further include other related hardware, logic devices, units, and/or codes to implement corresponding functions.
  • the wireless charging device 220 may further include a display unit (for example, may be a light emitting diode or an LED display screen) for displaying the charging status in real time (for example, charging in progress or terminated, etc.) during the wireless charging process.
  • a display unit for example, may be a light emitting diode or an LED display screen
  • the device to be charged 230 includes a wireless charging receiving unit 231, a charging management module 232, a second control unit 233, a detection unit 234, a battery 235, and a first charging channel 236.
  • a wireless charging receiving unit 231 includes a wireless charging receiving unit 231, a charging management module 232, a second control unit 233, a detection unit 234, a battery 235, and a first charging channel 236.
  • the composition structure of the device to be charged 230 shown in FIG. 2 does not constitute a limitation on the device to be charged, and the device to be charged may include more or fewer components than shown, or a combination of certain Components, or different component arrangements.
  • the power supply device 210 provides power supply for the wireless charging device 220, and the device to be charged 230 is placed on the surface of the wireless charging device 220.
  • the wireless charging device 220 charges the battery 235 in the device to be charged 230 by electromagnetic induction.
  • a wireless connection is established between the wireless charging device 220 and the device to be charged 230, and the two can also communicate with each other.
  • wireless communication methods include but are not limited to Bluetooth communication, wireless fidelity (WiFi) communication, close-range wireless communication based on high carrier frequency, optical communication, ultrasonic communication, ultra-wideband communication, and Mobile communications, etc.
  • WiFi wireless fidelity
  • close-range wireless communication based on high carrier frequency optical communication
  • ultrasonic communication ultra-wideband communication
  • Mobile communications etc.
  • the embodiments of the present application are not specifically limited.
  • the wireless charging receiving unit 231 is used to convert the electromagnetic signal emitted by the wireless charging transmitting unit 222 of the wireless charging device 220 into alternating current through the receiving coil, and rectify and/or filter the alternating current to convert the alternating current into a stable DC power is provided to charge the battery 235.
  • the wireless charging receiving unit 231 includes: a receiving coil and an AC/DC conversion unit.
  • the AC/DC conversion unit is used to convert the alternating current received by the receiving coil into direct current.
  • the battery 235 may include a single cell or multiple cells.
  • the multiple cells are connected in series.
  • the charging voltage that the battery 235 can withstand is the sum of the charging voltage that the multiple cells can withstand, which can increase the charging speed and reduce the heating of the charging.
  • the first charging channel 236 may be a wire.
  • a charging management module 232 can be provided on the first charging channel 236.
  • the charging management module 232 is used for boosting or stepping down the DC power output by the wireless charging receiving unit 231 to obtain the output voltage and output current of the first charging channel 236.
  • the voltage and current values of the direct current output by the first charging channel 236 meet the charging requirements of the battery 235 and can be directly loaded into the battery 235 for charging.
  • the charge management module 232 may include a second voltage conversion unit, and the second voltage conversion unit may be a boost conversion circuit, a buck conversion circuit, and a buck-boost type (The Buck-Boost) conversion circuit and the LDO voltage stabilizing circuit can also be charge pump conversion circuits, or even direct charging circuits, which are not specifically limited in the embodiments of the present application.
  • the Buck-Boost buck-boost type
  • the detection unit 234 is configured to detect the voltage value and/or current value of the first charging channel 236.
  • the voltage value and/or current value of the first charging channel 236 may refer to the voltage value and/or current value between the wireless charging receiving unit 231 and the charging management module 232, that is, the output voltage value and/or current of the wireless charging receiving unit 231 value.
  • the voltage value and/or current value on the first charging channel may also refer to the voltage value and/or current value between the charging management module 232 and the battery 235, that is, the output voltage and/or output current of the charging management module 232.
  • the detection unit 234 may include: a voltage detection unit 234 and a current detection unit 234.
  • the voltage detection unit 234 may be used to sample the voltage on the first charging channel 236 and send the sampled voltage value to the second control unit 233.
  • the voltage detection unit 234 may sample the voltage on the first charging channel 236 in series voltage division.
  • the current detection unit 234 may be used to sample the current on the first charging channel 236 and send the sampled current value to the second control unit 233.
  • the current detection unit 234 may sample and detect the current on the first charging channel 236 through a current detection resistor and a current detection meter.
  • the second control unit 233 is configured to communicate with the first control unit 223 of the wireless charging device 220, and feed back the voltage value and/or current value detected by the detection unit 234 to the first control unit 223. Thereby, the first control unit 223 can adjust the transmission power of the wireless charging transmission unit 222 according to the feedback voltage and/or current value, so that the voltage and/or current value of the DC power output by the first charging channel 236 and the battery The required charging voltage value and/or current value of 235 are matched.
  • matching with the charging voltage value and/or current value required by the battery 235 includes: the voltage value and/or current value of the direct current output by the first charging channel 236 and the charging voltage value required by the battery 235
  • the current value is equal to or floats a preset range (for example, the voltage value floats up and down by 100 mV to 200 mV).
  • the second control unit 233 may be an independent microcontroller unit (MCU) in the device to be charged 230, thereby improving the reliability of control.
  • the second control unit 1033 may also be an application processor (Application Processor, AP) in the device to be charged 230, thereby saving hardware costs.
  • AP Application Processor
  • FIG. 3 is a schematic flowchart 1 of an implementation process of a wireless charging method according to an embodiment of the present application.
  • the method for wireless charging of the device to be charged may include the following steps:
  • Step 101 When performing wireless charging, detect the battery charging voltage and/or battery charging current, and at the same time detect the output current corresponding to the wireless charging receiving circuit.
  • the battery charging voltage and/or battery charging current may be detected, and the output current corresponding to the wireless charging receiving circuit may be detected at the same time.
  • the charging state when the device to be charged is wirelessly charging may include trickle charging, constant current charging, and constant voltage charging.
  • the device to be charged may also be configured with a battery, so when performing wireless charging, the device to be charged may detect the battery to obtain the battery charging voltage and/or battery charging current.
  • the above-mentioned device to be charged may be a component of a wireless charging system.
  • the above-mentioned wireless charging system may further include a wireless charging device and a power supply device, wherein the above-mentioned wireless charging device To wirelessly charge the device to be charged by establishing a wireless connection with the device to be charged, for example, the wireless charging device may be a device such as a charging base; the power supply device may be used to charge the wireless charging device, specifically, the above The power supply device may be an adapter, a power supply and other devices.
  • the wireless charging system may include a power supply device, a wireless charging device, and a device to be charged; wherein, the wireless charging device includes a voltage conversion circuit, a wireless charging transmitting circuit, and a first control unit, and the device to be charged includes a wireless charging receiving circuit, Charge management module, second control unit and battery; voltage conversion circuit for DC/DC voltage conversion, mainly to adjust the first output voltage of the power supply device to a fixed voltage value and provide it to the wireless charging transmitter circuit; charge management module Including boost converter unit, buck converter unit, buck-boost converter unit, charge pump converter unit or direct charging unit; wireless charging transmitter circuit includes transmitter Coil, the wireless charging receiving circuit includes a receiving coil.
  • the fixed voltage value received by the wireless charging transmitting circuit can be transmitted to the wireless charging receiving circuit; the first control unit and the second control
  • the unit may be a microcontroller unit (MCU), and the second control unit may also be implemented by an application processor (AP) on the terminal side; in the embodiments of the present application, this is not specifically limited.
  • MCU microcontroller unit
  • AP application processor
  • the power supply device provides a power supply for the wireless charging device, and at the same time, the wireless charging technology is used between the wireless charging device and the device to be charged to charge the battery in the device to be charged through electromagnetic induction.
  • the power supply device is connected to the voltage conversion circuit in the wireless charging device, and the first output voltage of the power supply device is voltage-converted by the voltage conversion circuit.
  • the voltage conversion process is controlled by the first control unit, so that the converted The second output voltage enters the wireless charging transmitting circuit and is transmitted by the wireless charging transmitting circuit to the wireless charging receiving circuit through electromagnetic induction, and the third output voltage is obtained through the wireless charging receiving circuit.
  • the third output voltage is regulated and boosted by the charging management module Or step-down conversion, the process is controlled by the second control unit, and the charging voltage and charging current obtained after the conversion charge the battery.
  • the device to be charged is a terminal that can perform wireless communication with a wireless charging device
  • the device to be charged may be any terminal with communication and storage functions, such as a tablet computer or a mobile phone , E-readers, remote controls, personal computers (Personal Computers, PCs), notebook computers, in-vehicle devices, network TVs, wearables, personal digital assistants (Personal Digital Assistants, PDAs), portable media players (Portable Media Players) , PMP), navigation devices and other terminals.
  • the device to be charged may first establish a wireless connection with the wireless charging device and perform two-way communication to achieve wireless charging.
  • the power supply device may be used to charge the wireless charging device.
  • the power supply device and the wireless charging device may be connected through a universal serial bus (Universal Serial Bus, USB) interface
  • USB Universal Serial Bus
  • the USB interface can be a common USB interface, or a micro USB interface or a Type C interface.
  • the power cable in the USB interface is used for charging the wireless charging device by the above power supply device, wherein the power cable in the USB interface may be a VBus cable and/or a ground cable in the USB interface.
  • the data line in the USB interface is used for bidirectional communication between the power supply device and the wireless charging device.
  • the data line can be the D+ line and/or D- line in the USB interface.
  • the so-called bidirectional communication can refer to both the power supply device and the wireless charging device. Information interaction.
  • the power supply device may support a normal charging mode and a fast charging mode, wherein the charging current in the fast charging mode is greater than the charging current in the normal charging mode, that is, the charging speed in the fast charging mode is greater than the Charging speed in normal charging mode.
  • the wireless charging system controls the output power of the wireless charging receiving circuit by adjusting the input voltage of the wireless charging transmitting circuit
  • the wireless charging The output voltage of the receiving circuit and the input voltage of the wireless charging transmitter circuit are basically in a 1:1 relationship, so when performing wireless charging, the output voltage of the wireless charging receiver circuit can be adjusted directly by adjusting the input voltage of the wireless charging transmitter circuit the goal of.
  • the input voltage of the wireless charging transmitting circuit can be adjusted directly to adjust the wireless charging receiving circuit Output voltage.
  • Step 102 Determine the target charging power according to the battery charging voltage and/or the battery charging current, and determine the target charging current according to the output current.
  • the device to be charged may further determine the charging target charging power according to the battery charging voltage and/or battery charging current, The target charging current can be further determined based on the above output current.
  • the device to be charged may first obtain a preset parameter threshold corresponding to the charge state according to the charge state, and then convert the battery charge voltage and/or battery charge current and the Set a parameter threshold for comparison, so as to further determine whether to perform the above power adjustment. If it is determined that the power adjustment is required, the device to be charged may further determine the target charging power according to the battery charging voltage and/or battery charging current. Specifically, if the charging state is constant current charging, the device to be charged may first obtain a preset current threshold corresponding to the charging state, and then further determine the target charging power according to the preset current threshold and the battery charging voltage.
  • the device to be charged may also obtain a preset output current range corresponding to the charge state according to the charge state, and then compare the output current with the preset output current range To further determine whether to perform the above power adjustment. If it is determined that the power adjustment is required, the device to be charged may determine the target charging current according to the output current.
  • the device to be charged must consider whether the charging parameters of the battery can meet the set charging power, and whether the output current of the wireless charging receiving circuit can meet the set current
  • the range that is, the wireless charging method proposed in the present application, when determining whether to perform power adjustment, it is necessary to determine whether the charging efficiency can be guaranteed, and also whether to control the pressure difference of the charging management module within a relatively small range.
  • the device to be charged detects and obtains the battery charging voltage and/or battery charging current and the output current
  • the charging state, battery charging voltage and/or Or the battery charging current and the above output current are sent to the wireless charging device for the wireless charging device to further determine whether to perform power adjustment.
  • the device to be charged may determine whether to perform power adjustment, or the wireless charging device may further determine whether to perform power adjustment.
  • the device to be charged may also directly determine the current according to the battery charging voltage and/or battery charging current.
  • the product of the battery charging voltage and the battery charging current is the current charging power.
  • the device to be charged may determine a power difference according to the target charging power and the current charging power.
  • the above power difference value may represent the amount of adjusted power during adjustment.
  • the above-mentioned device to be charged may perform a difference operation on the above target charging power and the above current charging power, so as to obtain the above power difference value.
  • Step 103 Send an adjustment request to the wireless charging device; where the adjustment request carries the target charging power and/or the target charging current.
  • the device to be charged may send to the wireless charging device Adjustment request.
  • the adjustment request carries the target charging power and/or the target charging current.
  • the device to be charged after the device to be charged determines that the charging power needs to be adjusted, the device to be charged needs to adjust the input current and input voltage corresponding to the wireless charging receiving circuit. Therefore, the device to be charged The adjustment request needs to be sent to the wireless charging device, so that the wireless charging device adjusts the input voltage and input current corresponding to the wireless charging transmitter circuit to achieve the purpose of adjusting the output voltage and output current of the wireless charging transmitter circuit, and finally adjust The input current and input voltage corresponding to the wireless charging receiving circuit.
  • the wireless communication method includes one or more of the following communication methods: Bluetooth communication, wireless local area network (WirelessFidelity, Wi-Fi) communication, short-range wireless communication based on high carrier frequency, optical communication, ultrasonic communication, ultra-wideband communication and mobile communication.
  • Bluetooth communication wireless local area network (WirelessFidelity, Wi-Fi) communication
  • Wi-Fi wireless local area network
  • short-range wireless communication based on high carrier frequency
  • optical communication ultrasonic communication
  • ultra-wideband communication ultra-wideband communication and mobile communication.
  • the device to be charged may not feed back the target charging current, but only feed back the target charging power.
  • the wireless charging device needs to store the current threshold value, voltage threshold value and preset output current range corresponding to the above charging state, so that when adjusting the power, the current and voltage will not naturally exceed the threshold value.
  • the adjustment request when the device to be charged sends the adjustment request to the wireless charging device, the adjustment request may also carry the current charging power and the power difference.
  • Step 104 Receive the adjusted wireless charging signal sent by the wireless charging device, and perform wireless charging according to the adjusted wireless charging signal.
  • the device to be charged may receive the adjusted wireless charging signal sent by the wireless charging device to respond to the adjustment request , And perform wireless charging according to the adjusted wireless charging signal.
  • the wireless charging device may send the adjusted wireless charging signal to the device to be charged, and at the same time, the device to be charged may be wirelessly
  • the charging receiving circuit receives the adjusted wireless charging signal, and performs wireless charging according to the adjusted wireless charging signal.
  • the wireless charging receiving circuit in the device to be charged after the wireless charging receiving circuit in the device to be charged is connected to the adjusted wireless charging signal, it can output the corresponding target output voltage and target output current, and then the charge management The module converts the target output voltage and target output current and charges the battery.
  • the target output voltage corresponding to the charge management module and the converted output voltage may have a small pressure difference, thereby avoiding conversion caused by an excessive pressure difference Defects of reduced efficiency and increased temperature.
  • the device to be charged may first wirelessly communicate with the wireless charging device to determine a charging mode.
  • the above charging mode may include a first preset wireless charging mode and a second preset wireless charging mode. Specifically, the charging speed of the first preset wireless charging mode is greater than the charging speed of the second preset wireless charging mode.
  • the wireless charging transmitting unit may support a first preset wireless charging mode and a second preset wireless charging mode, wireless The charging transmission unit in the first preset wireless charging mode charges the device to be charged faster than the wireless charging transmission unit in the second preset wireless charging mode.
  • the wireless charging transmitter unit operating in the first preset wireless charging mode is full of batteries of the same capacity in the device to be charged Takes less time.
  • the second preset wireless charging mode may be an ordinary wireless charging mode, for example, it may be a traditional wireless charging mode based on the QI standard, PMA standard, or A4WP standard.
  • the first preset wireless charging mode may be a fast wireless charging mode.
  • the ordinary wireless charging mode may refer to a wireless charging mode in which the transmission power of the wireless charging transmitting unit is small (usually less than 15W, and the commonly used transmission power is 5W or 10W).
  • you want to fully charge a larger-capacity battery For example, a battery with a capacity of 3000 mAh
  • the transmission power of the wireless charging transmitter unit is relatively large (usually greater than or equal to 15W).
  • the charging time required for the wireless charging transmitter unit to fully charge the battery of the same capacity in the fast wireless charging mode can be significantly shortened and the charging speed is faster.
  • FIG. 4 is a schematic diagram 2 for implementing wireless charging in an embodiment of the present application.
  • the device to be charged further includes a second charging channel 237.
  • the second charging channel 237 may be a wire.
  • a conversion circuit may be provided on the second charging channel 237 to perform voltage control on the DC power output by the wireless charging receiving unit to obtain the output voltage and output current of the second charging channel 237 to charge the battery.
  • the conversion circuit may include a circuit for voltage stabilization.
  • the circuit for voltage regulation is connected to the wireless charging receiving unit.
  • the wireless charging transmitting unit may use a constant transmitting power. After the wireless charging receiving unit receives the electromagnetic signal, the conversion circuit processes the voltage to meet the battery charging demand After summing the current, input the battery to charge the battery. It should be understood that, in the embodiments of the present application, the constant transmission power does not necessarily mean that the transmission power remains completely unchanged, and it may vary within a certain range, for example, the transmission power is 7.5W and 0.5W floats up and down.
  • the second control circuit is also used to compare the detected output voltage value of the second charging channel with a set target value (for example, the actual demand voltage value of the battery) to determine the error Value, and then send the error value to the first controller in the form of a data packet.
  • the output voltage value of the second charging channel may be a voltage value and/or a current value between the conversion circuit and the battery.
  • the wireless charging device and the device to be charged can perform wireless charging according to the Qi standard. Therefore, the data signal containing the above-mentioned error value can be coupled to the coil of the wireless charging receiving unit by signal modulation to be sent to the coil of the wireless charging transmitting unit, and then transmitted to the first controller.
  • the wireless power transmission control process when charging the battery through the second charging channel, may include: the second control circuit performs according to the detected output voltage value of the second charging channel and the set target value Compare, determine the error value, and then send the error value to the first controller in the form of a data packet; the first controller determines the difference based on the current value of the current transmitting coil and the information in the error data packet, and sets the difference New working frequency to adjust the transmission power of the wireless charging transmitter unit.
  • the charging method for charging the battery through the first charging channel is the first charging mode
  • the method for charging the battery through the second charging channel is called the second charging mode.
  • the wireless charging device and the device to be charged can determine whether to charge the battery in the first charging mode or the second charging mode through handshake communication. That is to say, in the embodiment of the present application, when the device to be charged performs wireless charging according to the charging voltage and the charging current, it may use the first preset wireless according to the charging voltage and the charging current
  • the first charging channel corresponding to the charging mode is used for charging; according to the charging voltage and the charging current, charging may also be performed through the second charging channel corresponding to the second preset wireless charging mode.
  • the maximum transmission power of the wireless charging transmission unit when the device to be charged is charged in the first charging mode, the maximum transmission power of the wireless charging transmission unit may be the first transmission power value.
  • the maximum transmission power of the wireless charging transmission unit may be the second transmission power value.
  • the first transmission power value is greater than the second transmission power value, and therefore, the charging speed of the device to be charged in the first charging mode is greater than the second charging mode.
  • the second control circuit switches between the first charging channel and the second charging channel according to the charging mode.
  • the second control circuit controls the operation of the step-down circuit on the first charging channel.
  • the second control circuit controls the operation of the conversion circuit on the second charging channel.
  • the device to be charged is further configured with a battery
  • the battery is a single-cell battery or a multi-cell battery.
  • the multi-cell battery is composed of a plurality of cells connected in series.
  • the battery of the device to be charged may include one battery cell, or may include N battery cells connected in series with each other, where N is a positive integer greater than 1.
  • the battery may include a first cell and a second cell, and the first cell and the second cell are connected in series with each other.
  • the charging power equal to 20W
  • the charging voltage of a single cell equal to 5V as an example.
  • the output voltage/output current of the first charging channel needs to be maintained at 10V/2A.
  • the wireless transmitting circuit generates an electromagnetic signal based on 10V/2A
  • the wireless receiving circuit converts the electromagnetic signal into an output voltage/output current of 10V/2A. Since the current is reduced from 4A to 2A, the heat generated during the power transmission process Will be reduced accordingly. Therefore, the embodiments of the present application may also use multiple battery cells connected in series to reduce the heat generated by the wireless charging transmitting circuit and the wireless charging receiving circuit.
  • the value of N may also be 3, or may be a positive integer of 3 or more.
  • the embodiment of the present application in order to ensure the charging speed and further alleviate the heating phenomenon of the wireless charging signal receiving device 230, the embodiment of the present application further reforms the battery structure inside the wireless charging signal receiving device 230 and introduces Compared with the single-cell solution, if the same charging speed is to be achieved, the charging current required by the multi-cell batteries is 1/N (N Is the number of cells connected in series in the wireless charging signal receiving device), in other words, under the premise of ensuring the same charging speed, the embodiment of the present invention can greatly reduce the size of the charging current, thereby further reducing the wireless charging signal The calorific value of the receiving device during the charging process.
  • the multi-cell batteries may be batteries with the same or similar specifications and parameters.
  • the batteries with the same or similar specifications are convenient for unified management, and selecting batteries with the same specifications or similar parameters can increase the number of cells. The overall performance and service life of the battery cell.
  • the electrical energy output by the first charging channel or the second charging channel is used to charge the multi-cell batteries connected in series.
  • a step-down circuit can be used to step down the voltage of the multi-cell battery to supply power to the wireless charging signal receiving device.
  • a single cell can also be used for system power supply.
  • the multi-cell batteries may be power-balanced by the equalizing circuit.
  • the equalization circuit There are many ways to implement the equalization circuit. For example, you can connect loads at both ends of the cell and consume the power of the cell to keep it consistent with the power of other cells, thereby keeping the voltage of each cell consistent.
  • the battery cell with a high power amount can be charged to the battery cell with a low power amount until the voltages of the respective battery cells are the same.
  • the charging process of the battery may include one or more of a trickle charging stage, a constant current charging stage, and a constant voltage charging stage.
  • a trickle charging stage in order to further increase the charging speed, by controlling the charging voltage and current, the charging duration of the constant voltage charging stage is shortened or the constant voltage charging stage is eliminated. Therefore, compared with the charging process in the related art, the charging speed can be greatly improved.
  • the device to be charged may first detect the current charging state and the current battery voltage, if the current charging The state is constant voltage charging, and when the current battery voltage is greater than or equal to a preset cut-off voltage, the device to be charged may be charged according to a preset limit voltage and a pre-stored current parameter sequence.
  • the preset cut-off voltage is less than the preset limit voltage; the pre-stored current parameter sequence includes current parameters I1, I2, I3...In whose values decrease in sequence.
  • n is a natural number greater than or equal to 1.
  • a preset limit voltage that is higher than a preset cut-off voltage of the battery is set, and a preset current parameter sequence [I1, I2, I3, ..., In] is set, n ⁇ 1.
  • I1 ⁇ I2 ⁇ I3. It should be understood that the preset limit voltage is related to the battery system, materials used, and the like.
  • Vn may be set to V0+ ⁇ V, for example, ⁇ V may take a value between 0.05V and 0.1V.
  • the values of the charging currents I1, I2, ..., In also depend on the battery system and the materials used.
  • the capacity of the battery is determined. According to the relationship between the charging voltage, charging current, charging time and battery capacity, when the charging voltage is equal to the preset limit voltage, different stages of charging can be determined The size of the current.
  • I1, I2, I3...In can be set, and the difference between the two adjacent charging currents is ⁇ I, for example, ⁇ I can be taken from 100mA to 1A .
  • the battery charging voltage when the battery charging voltage is charged to the preset cut-off voltage, the battery is charged with a constant current at the charging current I1 until the battery The charging voltage reaches the preset limit voltage. Since the battery is charged with a constant current at current I1, the voltage will drop after stopping. Therefore, the battery is charged at a constant current with the current I2 until the battery charging voltage reaches the preset limit voltage. Repeat the above steps until the charging current In of the last step is used to charge to the preset limit voltage, then the charging can be stopped. Therefore, by setting the preset limit voltage and the charging current in each stage, the constant voltage charging stage in the related art can be omitted, and the charging time is greatly saved.
  • each of the charging stages corresponds to a charging current
  • the adjacent The charging current corresponding to the previous charging stage of the charging stage is greater than the corresponding charging current of the latter charging stage
  • each of the charging stages uses its corresponding charging current to charge the battery voltage to the limit voltage
  • the limit voltage is greater than the The preset cut-off voltage of the battery; when multiple of the charging stages are completed, the charging is stopped.
  • the battery charging voltage when the battery charging voltage is charged to the preset cut-off voltage, the battery is charged with a constant current at the charging current I1 until the battery The charging voltage reaches the preset limit voltage. The battery is then charged with a constant current at current I2 until the battery charging voltage reaches the preset limit voltage.
  • Vn is used as the charging voltage
  • the constant voltage charging is preset for a preset time or the current to be charged is reduced to a preset value, then the charging is stopped.
  • the duration of constant-voltage charging is reduced due to the increased charging cut-off voltage, and thus, the charging time can also be greatly saved compared to related technologies.
  • the battery charging voltage when the battery charging voltage is charged to the preset cut-off voltage, the battery is charged through multiple charging stages, each of the charging stages corresponds to a charging current, and the adjacent The charging current corresponding to the previous charging stage of the charging stage is greater than the corresponding charging current of the latter charging stage, and each of the charging stages uses its corresponding charging current to charge the battery voltage to the limit voltage, the limit voltage is greater than the The preset cut-off voltage of the battery; constant-voltage charging of the battery with the limiting voltage until the charging current of the battery reaches the target constant-voltage charging cut-off current or the charging duration reaches the preset duration, then charging stops.
  • the battery when the battery is a multi-cell, in the above method, it is necessary to monitor whether the voltage of each cell reaches the preset cut-off voltage and the limit voltage. When the voltage of any cell reaches the preset cut-off voltage or the limit voltage, the conversion operation of the charging current is performed.
  • the charging path of the battery cell that has reached the preset cut-off voltage or the limiting voltage may be disconnected, and charging of the battery cell that has not reached the preset cut-off voltage or the limiting voltage may be continued. That is, each battery cell can independently perform the charging operation according to the above charging process.
  • a wireless charging method proposed in an embodiment of the present application is applied to a device to be charged, wherein the device to be charged is configured with a wireless charging receiving circuit, and the above wireless charging method includes: when performing wireless charging, the device to be charged Detect the battery charging voltage and/or battery charging current, and simultaneously detect the output current corresponding to the wireless charging receiving circuit; determine the target charging power according to the battery charging voltage and/or battery charging current, and determine the target charging current according to the output current; to the wireless charging device Sending an adjustment request; wherein, the adjustment request carries the target charging power and/or target charging current; receives the adjusted wireless charging signal sent by the wireless charging device, and performs wireless charging according to the adjusted wireless charging signal.
  • the device to be charged determines the target charging power and the target charging current according to the battery charging voltage and/or battery charging current and the output current of the wireless charging receiving circuit respectively, and then can charge the wireless
  • the device sends an adjustment request carrying the target charging power and/or target charging current, and receives the adjusted wireless charging signal sent by the wireless charging device, and performs wireless charging and wireless charging according to the adjusted wireless charging signal, so that charging can be achieved Power adjustment, this method of feeding back the battery charging voltage and/or battery charging current and the output current of the wireless charging receiving circuit to the wireless charging device to adjust the charging power in real time, which can be obtained by feeding back the battery charging parameters.
  • the output current of the wireless charging receiving circuit can be fed back to ensure that the voltage difference is small, so that when the wireless charging device and the device to be charged are wirelessly charged, the problem of charging heating can be solved, and the wireless can be greatly improved. Charging efficiency.
  • the method for the target device to determine the target charging power according to the battery charging voltage and/or battery charging current may include the following step:
  • Step 102a Acquire a preset current threshold corresponding to the charging state.
  • the device to be charged may first obtain a preset current threshold corresponding to the charging state .
  • the above-mentioned preset current threshold can be used to improve the efficiency of battery charging; the above-mentioned preset output current range can be used to reduce the voltage difference of the charging management module to improve charging efficiency and reduce heat generation .
  • the above-mentioned device to be charged may previously establish a correspondence between the charging state and the battery charging voltage and/or battery charging current threshold, and a corresponding relationship between the charging state and the output current range.
  • the above-mentioned device to be charged may set different battery charging voltages and/or battery charging current thresholds, and at the same time, may set different output current thresholds.
  • Step 102b Determine the target charging power according to the preset current threshold and the battery charging voltage.
  • the device to be charged may, after detecting and obtaining the battery charging current and obtaining the preset current threshold, charge the battery according to the preset current threshold and the battery Voltage to further determine the target charging power.
  • the device to be charged may perform a product operation on the battery charging voltage and the preset current threshold to obtain the target charging power.
  • the device to be charged may compare the battery charging current with the preset current threshold, and may also compare the output current with the preset output current range, thereby Whether to perform power adjustment can be further determined according to the above two comparison results.
  • the device to be charged may consider that the battery charging current cannot meet the predetermined charging power requirement, and therefore power adjustment is required.
  • the device to be charged may consider that the output current cannot meet the predetermined charging power requirement or the predetermined low voltage Poor requirements may cause heat generation, so power adjustment is required.
  • the device to be charged compares the battery charging current with the preset current threshold, and compares the output current with the preset output current range, if the battery The charging current is less than the preset current threshold, and the output current does not belong to the preset output current range, then the device to be charged may determine that power adjustment is required; if the battery charging current is greater than or equal to the preset current threshold, or If the output current belongs to the preset output current range, the device to be charged may determine that power adjustment is not required.
  • the method for the target device to determine the target charging power according to the battery charging voltage and/or battery charging current may include the following steps:
  • Step 102c Acquire a preset voltage threshold corresponding to the charging state.
  • the device to be charged may first obtain a preset voltage threshold corresponding to the charging state .
  • the above-mentioned preset voltage threshold may be used to improve the efficiency of battery charging.
  • Step 102d Determine the target charging power according to the preset voltage threshold and the battery charging current.
  • the device to be charged may charge the battery according to the preset voltage threshold and the battery after acquiring the battery charging voltage and acquiring the preset voltage threshold Current to further determine the target charging power.
  • the device to be charged may perform a product operation on the battery charging current and the preset voltage threshold to obtain the target charging power.
  • the device to be charged may compare the battery charging voltage with the preset voltage threshold, and at the same time, may also compare the output current with the preset output current range, thereby Whether to perform power adjustment can be further determined according to the above two comparison results.
  • the device to be charged may consider that the battery charging voltage cannot meet the predetermined charging power requirement, and therefore power adjustment is required.
  • the device to be charged may consider that the output current can neither meet the predetermined charging power requirement nor the predetermined small
  • the pressure difference requirement may cause heat generation, so power adjustment is required.
  • the device to be charged compares the battery charging voltage with the preset voltage threshold, and compares the output current with the preset output current range, if the battery The charging voltage is less than the preset voltage threshold, and the output current does not belong to the preset output current range, then the device to be charged may determine that power adjustment is required; if the battery charging voltage is greater than or equal to the preset voltage threshold, or If the output current belongs to the preset output current range, the device to be charged may determine that power adjustment is not required.
  • the device to be charged is further configured with a charging management module, and the method for wirelessly charging the wireless charging signal of the device to be charged may include the following steps:
  • Step 201 The wireless charging receiving circuit outputs the target output current and the target output voltage according to the wireless charging signal.
  • the wireless charging receiving circuit in the device to be charged may output a target data current and a target data voltage according to the wireless charging signal.
  • the wireless charging receiving circuit in the device to be charged may output a target output voltage and a target output current according to the charging voltage and the charging current, so that The target output voltage and the target output current are transmitted to the charging management module in the device to be charged.
  • Step 202 After the charge management module converts the target output current and the target output voltage, the battery is charged.
  • the battery after the charge management module in the device to be charged converts the target charging current and the target output voltage, the battery can be charged.
  • the charging management module may determine the target output current and the target output voltage. Perform conversion to obtain the converted charging current and charging voltage, and then output the converted charging current and charging voltage to the battery to complete the charging of the battery.
  • a wireless charging method provided by an embodiment of the present application is applied to a device to be charged, wherein the device to be charged is configured with a wireless charging receiving circuit, and the foregoing wireless charging method includes: when performing wireless charging, the device to be charged Detect the battery charging voltage and/or battery charging current, and simultaneously detect the output current corresponding to the wireless charging receiving circuit; determine the target charging power according to the battery charging voltage and/or battery charging current, and determine the target charging current according to the output current; to the wireless charging device Sending an adjustment request; wherein, the adjustment request carries the target charging power and/or target charging current; receives the adjusted wireless charging signal sent by the wireless charging device, and performs wireless charging according to the adjusted wireless charging signal.
  • the device to be charged determines the target charging power and the target charging current according to the battery charging voltage and/or battery charging current and the output current of the wireless charging receiving circuit respectively, and then can charge the wireless
  • the device sends an adjustment request carrying the target charging power and/or target charging current, and receives the adjusted wireless charging signal sent by the wireless charging device, and performs wireless charging and wireless charging according to the adjusted wireless charging signal, so that charging can be achieved Power adjustment, this method of feeding back the battery charging voltage and/or battery charging current and the output current of the wireless charging receiving circuit to the wireless charging device to adjust the charging power in real time, which can be obtained by feeding back the battery charging parameters.
  • the output current of the wireless charging receiving circuit can be fed back to ensure that the voltage difference is small, so that when the wireless charging device and the device to be charged are wirelessly charged, the problem of charging heating can be solved, and the wireless can be greatly improved. Charging efficiency.
  • FIG. 5 is a schematic diagram 2 of an implementation process of a wireless charging method proposed in an embodiment of the present application.
  • the wireless charging method of the above wireless charging device may include the following steps:
  • Step 301 When performing wireless charging, receive an adjustment request sent by a device to be charged; wherein the adjustment request carries a target charging power and/or a target charging current.
  • the adjustment request sent by the device to be charged may be received.
  • the above adjustment request carries the target charging power and/or target charging current required by the device to be charged.
  • the above adjustment request may also carry the current charging power and the power difference.
  • the charging state when the wireless charging device performs wireless charging, the charging state may be detected and determined, where the charging state may include trickle charging, constant current charging, and constant voltage charging.
  • the wireless charging device may be a component of a wireless charging system.
  • the wireless charging system may further include a device to be charged and a power supply device, where the wireless charging device To wirelessly charge the device to be charged by establishing a wireless connection with the device to be charged, for example, the wireless charging device may be a device such as a charging base; the power supply device may be used to charge the wireless charging device, specifically, the above The power supply device may be an adapter, a power supply and other devices.
  • the wireless charging system may include a power supply device, a wireless charging device, and a device to be charged; wherein, the wireless charging device includes a voltage conversion circuit, a wireless charging transmitting circuit, and a first control unit, and the device to be charged includes a wireless charging receiver Circuit, charge management module, second control unit and battery.
  • the device to be charged may first establish a wireless connection with the wireless charging device and perform two-way communication to achieve wireless charging.
  • the power supply device may be used to charge the wireless charging device.
  • the power supply device and the wireless charging device may be connected through a universal serial bus (Universal Serial Bus, USB) interface
  • USB Universal Serial Bus
  • the USB interface can be a common USB interface, or a micro USB interface or a Type C interface.
  • the power cable in the USB interface is used for charging the wireless charging device by the above power supply device, wherein the power cable in the USB interface may be a VBus cable and/or a ground cable in the USB interface.
  • the data line in the USB interface is used for bidirectional communication between the power supply device and the wireless charging device.
  • the data line can be the D+ line and/or D- line in the USB interface.
  • the so-called bidirectional communication can refer to both the power supply device and the wireless charging device. Information interaction.
  • the wireless communication method when the device to be charged and the wireless charging device perform wireless communication, includes one or more of the following communication methods: Bluetooth communication, Wi-Fi Fi communication, short-range wireless communication based on high carrier frequency, optical communication, ultrasonic communication, ultra-wideband communication and mobile communication.
  • Step 302 Adjust the input voltage of the wireless charging transmitting circuit according to the target charging power and/or the target charging current to obtain an adjusted wireless charging signal.
  • the wireless charging device may further adjust the input voltage of the wireless charging transmitter circuit according to the target charging power and/or target charging current to obtain Adjusted wireless charging signal.
  • the wireless charging device should consider whether the charging parameters of the battery of the device to be charged can meet the set charging power, and also take into account the output of the wireless charging receiving circuit of the device to be charged Whether the current can meet the set current range, that is, the wireless charging method proposed in this application, when the wireless charging device determines the wireless charging signal, it is necessary to ensure not only the improvement of the charging efficiency, but also the charging management module of the equipment to be charged Differential pressure control.
  • the wireless charging signal may include a target charging power, a target charging voltage, and a target charging current.
  • the wireless charging device may further further according to the target charging power and/or target charging current, the current charging power and the power Difference, adjust the input voltage of the wireless charging transmitter circuit to obtain the adjusted wireless charging signal.
  • Step 303 In response to the adjustment request, send the adjusted wireless charging signal to the device to be charged, so that the output of the wireless charging device matches the target charging power and/or the target charging current.
  • the wireless charging device may send the adjusted wireless charging signal to the device to be charged in response to the adjustment request through the wireless charging transmitting circuit, so that the The output of the wireless charging device matches the aforementioned target charging power and/or the target charging current.
  • the wireless charging device after determining the wireless charging signal, the wireless charging device needs to control the configured voltage conversion circuit to adjust the output voltage and output current of the voltage conversion circuit, so that The voltage and current input to the wireless charging transmitting circuit satisfy the above wireless charging signal.
  • the wireless charging device may control the voltage conversion circuit according to the feedback to adjust the output voltage and output current of the voltage conversion circuit, That is, the input voltage and input current of the wireless charging transmitting circuit are adjusted, so as to realize power adjustment when the device to be charged is wirelessly charged, so that the output of the wireless charging device matches the target charging power and/or the target charging current.
  • the device to be charged may first wirelessly communicate with the wireless charging device to determine a charging mode.
  • the above charging mode may include a first preset wireless charging mode and a second preset wireless charging mode. Specifically, the charging speed of the first preset wireless charging mode is greater than the charging speed of the second preset wireless charging mode.
  • the wireless charging transmitting unit may support a first preset wireless charging mode and a second preset wireless charging mode, wireless The charging transmission unit in the first preset wireless charging mode charges the device to be charged faster than the wireless charging transmission unit in the second preset wireless charging mode.
  • the wireless charging transmitter unit operating in the first preset wireless charging mode is full of batteries of the same capacity in the device to be charged Takes less time.
  • the second preset wireless charging mode may be an ordinary wireless charging mode, for example, it may be a traditional wireless charging mode based on the QI standard, PMA standard, or A4WP standard.
  • the first preset wireless charging mode may be a fast wireless charging mode.
  • the ordinary wireless charging mode may refer to a wireless charging mode in which the transmission power of the wireless charging transmitting unit is small (usually less than 15W, and the commonly used transmission power is 5W or 10W).
  • you want to fully charge a larger-capacity battery For example, a battery with a capacity of 3000 mAh
  • the transmission power of the wireless charging transmitter unit is relatively large (usually greater than or equal to 15W).
  • the charging time required for the wireless charging transmitter unit to fully charge the battery of the same capacity in the fast wireless charging mode can be significantly shortened and the charging speed is faster.
  • the wireless charging device when the wireless charging device outputs a charging voltage and a charging current to the device to be charged according to the wireless charging signal, according to the wireless charging signal, the first Set the wireless charging mode to output the charging voltage and the charging current to the device to be charged; and also output the charging to the device to be charged through the second preset wireless charging mode according to the wireless charging signal Voltage and the charging current.
  • a wireless charging method proposed in an embodiment of the present application is applied to a wireless charging device.
  • the wireless charging device is configured with a wireless charging transmitting circuit.
  • the above wireless charging method includes: the wireless charging device receives An adjustment request; wherein, the adjustment request carries the target charging power and/or target charging current; according to the target charging power and/or target charging current, the input voltage of the wireless charging transmitting circuit is adjusted to obtain an adjusted wireless charging signal; in response to the adjustment request , Sending the adjusted wireless charging signal to the device to be charged, so that the output of the wireless charging device matches the target charging power and/or the target charging current.
  • the wireless charging device determines the wireless charging signal according to the charging state and the target charging power and/or target charging current carried in the adjustment request sent by the device to be charged, and then uses the wireless charging
  • the transmitting circuit outputs a wireless charging signal to the device to be charged, so that the charging power can be adjusted, which adjusts the charging power according to the feedback of the battery charging voltage and/or battery charging current and the output current of the wireless charging receiving circuit
  • the method can not only obtain a higher charging power through the feedback of the charging parameters of the battery, but also ensure that the voltage difference is small through the feedback of the output current of the wireless charging receiving circuit, so that the wireless charging device and the device to be charged can be wirelessly charged At the same time, it can greatly improve the wireless charging efficiency while solving the problem of charging heating.
  • the wireless charging device is further configured with a voltage conversion circuit, and the wireless charging device adjusts the wireless charging transmission according to the target charging power and/or the target charging current
  • the method for obtaining the adjusted wireless charging signal by the input voltage of the circuit may specifically be: controlling the voltage conversion circuit according to the target charging power and/or the target charging current to obtain the adjusted wireless charging signal.
  • the wireless charging device may control the voltage conversion circuit according to the target charging power and/or the target charging current, thereby The wireless charging signal after adjustment can be obtained.
  • the wireless charging device may receive the voltage and current transmitted by the power supply device through the voltage conversion circuit, and the voltage conversion circuit may convert the received current and voltage to obtain an output Current and output voltage.
  • the target charging power and/or the target charging current is determined, and then according to the target charging power and/or The target charging current controls the voltage conversion circuit to adjust the converted voltage and current, so that the adjusted wireless charging signal corresponding to the wireless transmission circuit can be obtained.
  • the wireless charging transmitting circuit may output a wireless charging signal to the device to be charged.
  • the wireless charging device may determine the target charging power and/or the target The charging current controls the above-mentioned voltage conversion circuit to adjust the output voltage and output current of the voltage conversion circuit, that is, the input voltage and input current of the wireless charging transmitting circuit, so as to realize the power adjustment when the device to be charged is wirelessly charged.
  • a wireless charging method proposed in an embodiment of the present application is applied to a wireless charging device.
  • the wireless charging device is configured with a wireless charging transmitting circuit.
  • the above wireless charging method includes: the wireless charging device receives An adjustment request; wherein, the adjustment request carries the target charging power and/or target charging current; according to the target charging power and/or target charging current, the input voltage of the wireless charging transmitting circuit is adjusted to obtain an adjusted wireless charging signal; in response to the adjustment request , Sending the adjusted wireless charging signal to the device to be charged, so that the output of the wireless charging device matches the target charging power and/or the target charging current.
  • the wireless charging device determines the wireless charging signal according to the charging state and the target charging power and/or target charging current carried in the adjustment request sent by the device to be charged, and then uses the wireless charging
  • the transmitting circuit outputs a wireless charging signal to the device to be charged, so that the charging power can be adjusted, which adjusts the charging power according to the feedback of the battery charging voltage and/or battery charging current and the output current of the wireless charging receiving circuit
  • the method can not only obtain a higher charging power through the feedback of the charging parameters of the battery, but also ensure that the voltage difference is small through the feedback of the output current of the wireless charging receiving circuit, so that the wireless charging device and the device to be charged can be wirelessly charged At the same time, it can greatly improve the wireless charging efficiency while solving the problem of charging heating.
  • an embodiment of the present application provides a wireless charging method, which is applied to a device to be charged and a wireless charging device in a wireless charging system.
  • FIG. 6 is an implementation process of a wireless charging method proposed by an embodiment of the present application Schematic diagram 3, as shown in FIG. 6, in the embodiment of the present application, the wireless charging method of the wireless charging device and the device to be charged may include the following steps:
  • Step 501 During wireless charging, the device to be charged detects the battery charging voltage and/or battery charging current, and at the same time detects the output current corresponding to the wireless charging receiving circuit.
  • the battery charging voltage and/or battery charging current may be detected, and at the same time the output current corresponding to the wireless charging receiving circuit may be detected.
  • the charging state when the device to be charged performs wireless charging may include trickle charging, constant current charging, and constant voltage charging.
  • the above-mentioned device to be charged may be a component of a wireless charging system.
  • the above-mentioned wireless charging system may further include a wireless charging device and a power supply device, wherein the above-mentioned wireless charging device The wireless charging is performed on the device to be charged by establishing a wireless connection with the device to be charged.
  • Step 502 The device to be charged determines the target charging power according to the battery charging voltage and/or the battery charging current, and determines the target charging current according to the output current.
  • the device to be charged may determine the target charging power according to the battery charging voltage and/or battery charging current, and according to the output The current determines the target charging current.
  • the device to be charged must consider whether the charging parameters of the battery can meet the set charging power, and whether the output current of the wireless charging receiving circuit can meet the set current
  • the range that is, the wireless charging method proposed in the present application, when determining whether to perform power adjustment, it is necessary to determine whether the charging efficiency can be guaranteed, and also whether to control the pressure difference of the charging management module within a relatively small range.
  • Step 503 The device to be charged sends an adjustment request to the wireless charging apparatus; wherein the adjustment request carries the target charging power and/or the target charging current.
  • the above-mentioned device to be charged may send an adjustment request to the wireless charging apparatus.
  • the above adjustment request carries the target charging power and/or the target charging current.
  • Step 504 The wireless charging device adjusts the input voltage of the wireless charging transmitting circuit according to the target charging power and/or the target charging current to obtain the adjusted wireless charging signal.
  • the wireless charging device may further adjust the input voltage of the wireless charging transmitter circuit according to the target charging power and/or target charging current to obtain an adjustment After the wireless charging signal.
  • the wireless charging device should consider whether the charging parameters of the battery of the device to be charged can meet the set charging power, and also take into account the output of the wireless charging receiving circuit of the device to be charged Whether the current can meet the set current range, that is, the wireless charging method proposed in this application, when the wireless charging device determines the wireless charging signal, it is necessary to ensure not only the improvement of the charging efficiency, but also the charging management module of the equipment to be charged Differential pressure control.
  • the wireless charging device after obtaining the target charging power and/or target charging current, the wireless charging device needs to control the configured voltage conversion circuit to adjust the output voltage of the voltage conversion circuit and The current is output so that the voltage and current input into the wireless charging transmitting circuit can meet the above-mentioned target charging power and/or target charging current.
  • Step 505 The device to be charged receives the adjusted wireless charging signal sent by the wireless charging device, and performs wireless charging according to the adjusted wireless charging signal.
  • the device to be charged may receive the adjusted wireless charging signal sent by the wireless charging device, and according to the adjusted wireless charging signal Perform wireless charging.
  • the wireless charging device may output the wireless charging signal to the device to be charged through the wireless charging transmitting circuit.
  • a wireless charging method proposed in an embodiment of the present application is applied to a device to be charged and a wireless charging device, wherein the device to be charged is configured with a wireless charging receiving circuit, and the above wireless charging method includes: the device to be charged detects a battery Charging voltage and/or battery charging current, simultaneously detecting the output current corresponding to the wireless charging receiving circuit; determining the target charging power according to the battery charging voltage and/or battery charging current, and determining the target charging current according to the output current; sending adjustments to the wireless charging device The request; wherein the adjustment request carries the target charging power and/or the target charging current; receives the adjusted wireless charging signal sent by the wireless charging device, and performs wireless charging according to the adjusted wireless charging signal.
  • the device to be charged determines the target charging power and the target charging current according to the battery charging voltage and/or battery charging current and the output current of the wireless charging receiving circuit respectively, and then can charge the wireless
  • the device sends an adjustment request carrying the target charging power and/or target charging current, and receives the adjusted wireless charging signal sent by the wireless charging device, and performs wireless charging and wireless charging according to the adjusted wireless charging signal, so that charging can be achieved Power adjustment, this method of feeding back the battery charging voltage and/or battery charging current and the output current of the wireless charging receiving circuit to the wireless charging device to adjust the charging power in real time, which can be obtained by feeding back the battery charging parameters.
  • the output current of the wireless charging receiving circuit can be fed back to ensure that the voltage difference is small, so that when the wireless charging device and the device to be charged are wirelessly charged, the problem of charging heating can be solved, and the wireless can be greatly improved. Charging efficiency.
  • FIG. 7 is a schematic diagram of the composition structure of the device to be charged proposed in the embodiment of the present application.
  • the device to be charged 1 proposed in the embodiment of the present application may include A processor 11, a first memory 12 storing instructions executable by the first processor 11, a wireless charging receiving circuit 13, a battery 14, a detection module 15, a first wireless communication module 16, and a charging management module 17.
  • the detection module 15 is configured to detect a battery charging voltage and/or battery charging current during wireless charging, and simultaneously detect an output current corresponding to the wireless charging receiving circuit.
  • the first processor 11 is configured to determine a target charging power according to the battery charging voltage and/or battery charging current, and determine a target charging current according to the output current.
  • the first wireless communication module 16 is configured to send an adjustment request to a wireless charging device; wherein the adjustment request carries the target charging power and/or the target charging current.
  • the wireless charging receiving circuit 13 is configured to receive the adjusted wireless charging signal sent by the wireless charging device, and perform wireless charging according to the adjusted wireless charging signal.
  • the first processor 11 is further configured to determine the target charging power according to the battery charging voltage and/or battery charging current, and then according to the battery charging voltage and/or battery The charging current determines the current charging power; and the power difference is determined according to the target charging power and the current charging power.
  • the adjustment request also carries the current charging power and the power difference.
  • the detection module 15 is also used to detect the charging state.
  • the first processor 11 is specifically configured to obtain a preset current threshold corresponding to the charging state when the charging state is constant current charging; and according to the Set the current threshold and the battery charging voltage to determine the target charging power.
  • the first processor 11 is further specifically configured to obtain a preset voltage threshold corresponding to the charging state when the charging state is constant voltage charging; and according to the preset voltage threshold and the battery charging current, Determine the target charging power.
  • the wireless charging receiving circuit 13 is specifically configured to output a target output current and a target output voltage according to the wireless charging signal.
  • the charging management module 17 specifically charges the battery 14 after converting the target output current and the target output voltage.
  • the wireless charging receiving circuit 13 is configured to determine a charging mode through wireless communication with the wireless charging device; wherein, the charging mode includes a first preset wireless charging mode and a first Two preset wireless charging modes; the charging speed of the first preset wireless charging mode is greater than the charging speed of the second preset wireless charging mode.
  • the battery 14 is charged according to the first preset wireless charging mode; or, the battery 14 is charged according to the second preset wireless charging mode;
  • the battery 14 is charged through the first charging channel corresponding to the first preset wireless charging mode; or, the battery 14 is charged through the second charging channel corresponding to the second preset wireless charging mode Charge it.
  • the battery 14 is a single-cell battery or a multi-cell battery; wherein, the multi-cell battery is composed of a plurality of cells connected in series with each other; accordingly, the multi-cell When the battery cell is powered, the voltage output by the multi-cell battery is reduced.
  • the battery is charged through multiple charging stages, each of which corresponds to a charging current , And the charging current corresponding to the previous charging stage adjacent to the charging stage is greater than the charging current corresponding to the latter charging stage, and each of the charging stages uses its corresponding charging current to charge the battery voltage to the limit voltage,
  • the limit voltage is greater than the preset cut-off voltage of the battery; when multiple charging stages are completed, charging is stopped.
  • the battery is charged through multiple charging stages, each of which corresponds to a charging current , And the charging current corresponding to the previous charging stage adjacent to the charging stage is greater than the charging current corresponding to the latter charging stage, and each of the charging stages uses its corresponding charging current to charge the battery voltage to the limit voltage,
  • the limiting voltage is greater than the preset cut-off voltage of the battery; the battery is charged at a constant voltage with the limiting voltage until the charging current of the battery reaches the target constant-voltage charging cut-off current or the charging duration reaches the preset duration, Then charging stops.
  • the first processor 11 may be an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a digital signal processor (Digital Signal Processor, DSP), a digital signal processing device (Digital Signal Processing Device) , DSPD), programmable logic device (ProgRAMmable Logic Device, PLD), field programmable gate array (Field ProgRAMmable Gate Array, FPGA), central processing unit (Central Processing Unit, CPU), controller, microcontroller, micro-processing At least one of the devices. Understandably, for different devices, there may be other electronic devices for implementing the above-mentioned processor functions, and the embodiments of the present application are not specifically limited.
  • the first memory 12 is used to store executable program code, and the program code includes computer operation instructions.
  • the first memory 12 may include a high-speed RAM memory, or may further include a non-volatile memory, for example, at least two disk memories.
  • the device to be charged may further include a first communication interface 18 and a first bus 19, wherein the first bus 19 is used to connect the first communication interface 18, the first processor 11 and the first memory 12 And the mutual communication between these devices.
  • the first memory 12 is used to store instructions and data.
  • a device to be charged proposed in an embodiment of the present application wherein the device to be charged is configured with a wireless charging receiving circuit, and when performing wireless charging, the device to be charged detects a battery charging voltage and/or battery charging current, and simultaneously detects wireless charging reception The output current corresponding to the circuit; determining the target charging power according to the battery charging voltage and/or battery charging current, and determining the target charging current according to the output current; sending an adjustment request to the wireless charging device; wherein the adjustment request carries the target charging power and/or target Charging current; receiving the adjusted wireless charging signal sent by the wireless charging device, and performing wireless charging according to the adjusted wireless charging signal.
  • the device to be charged determines the target charging power and the target charging current according to the battery charging voltage and/or battery charging current and the output current of the wireless charging receiving circuit respectively, and then can charge the wireless
  • the device sends an adjustment request carrying the target charging power and/or target charging current, and receives the adjusted wireless charging signal sent by the wireless charging device, and performs wireless charging and wireless charging according to the adjusted wireless charging signal, so that charging can be achieved Power adjustment.
  • the output current of the wireless charging receiving circuit can be fed back to ensure that the voltage difference is small, so that when the wireless charging device and the device to be charged are wirelessly charged, the problem of charging heating can be solved, and the wireless can be greatly improved. Charging efficiency.
  • FIG. 8 is a schematic diagram of a composition structure of the wireless charging device proposed in the embodiment of the present application.
  • the wireless charging device 2 proposed in the embodiment of the present application may include Two processors 21, a second memory 22 storing instructions executable by the second processor 21, a wireless charging transmitting circuit 23, a voltage conversion circuit 24, and a second wireless communication module 25.
  • the wireless charging device 2 may further include Two communication interfaces 26, and a second bus 27 for connecting the second processor 21, the second memory 22, and the second communication interface 26.
  • the second wireless communication module 25 is configured to receive an adjustment request sent by the device to be charged when performing wireless charging; wherein the adjustment request carries a target charging power and/or a target charging current.
  • the second processor 21 is configured to adjust the input voltage of the wireless charging transmitting circuit according to the target charging power and/or the target charging current to obtain an adjusted wireless charging signal.
  • the wireless charging transmitting circuit 23 is configured to send the adjusted wireless charging signal to the device to be charged in response to the adjustment request, so that the output of the wireless charging device and the target charging power and/or The target charging current matches.
  • the adjustment request further includes the current charging power and the power difference.
  • the second processor 21 is further configured to, after receiving the adjustment request sent by the device to be charged, according to the target charging power and/or the target charging current, the current The charging power and the power difference value adjust the input voltage of the wireless charging transmitting circuit to obtain the adjusted wireless charging signal.
  • the second processor 21 is specifically configured to control the voltage conversion circuit 24 according to the target charging power and/or the target charging current to obtain the adjusted Wireless charging signal.
  • the wireless charging transmitting circuit 23 is further configured to determine a charging mode through wireless communication with the device to be charged; wherein, the charging mode includes a first preset wireless charging mode and The second preset wireless charging mode; the charging speed of the first preset wireless charging mode is greater than the charging speed of the second preset wireless charging mode.
  • the wireless charging transmitting circuit 23 is specifically configured to send the adjusted wireless charging signal to the device to be charged according to the first preset wireless charging mode; or, Sending the adjusted wireless charging signal to the device to be charged according to the second preset wireless charging mode.
  • the second processor 21 may be an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a digital signal processor (Digital Signal Processor, DSP), a digital signal processing device (Digital Signal Processing Device) , DSPD), programmable logic device (ProgRAMmable Logic Device, PLD), field programmable gate array (Field ProgRAMmable Gate Array, FPGA), central processing unit (Central Processing Unit, CPU), controller, microcontroller, micro-processing At least one of the devices. Understandably, for different devices, there may be other electronic devices for implementing the above-mentioned processor functions, and the embodiments of the present application are not specifically limited.
  • the second memory 22 is used to store executable program code, and the program code includes computer operation instructions.
  • the second memory 22 may include a high-speed RAM memory, or may also include a non-volatile memory, for example, at least two disk memories.
  • the second bus 27 is used to connect the second communication interface 26, the second processor 21, the second memory 22, and the mutual communication between these devices.
  • the second memory 22 is used to store instructions and data.
  • a wireless charging device provided by an embodiment of the present application, wherein the wireless charging device is configured with a wireless charging transmitting circuit, and when performing wireless charging, when the wireless charging device performs wireless charging, the wireless charging device receives the adjustment sent by the device to be charged Request; wherein, the adjustment request carries the target charging power and/or target charging current; according to the target charging power and/or target charging current, the input voltage of the wireless charging transmitting circuit is adjusted to obtain the adjusted wireless charging signal; in response to the adjustment request, Send the adjusted wireless charging signal to the device to be charged, so that the output of the wireless charging device matches the target charging power and/or target charging current.
  • the wireless charging device determines the wireless charging signal according to the charging state and the target charging power and/or target charging current carried in the adjustment request sent by the device to be charged, and then uses the wireless charging
  • the transmitting circuit outputs a wireless charging signal to the device to be charged, so that the charging power can be adjusted, which adjusts the charging power according to the feedback of the battery charging voltage and/or battery charging current and the output current of the wireless charging receiving circuit
  • the method can not only obtain a higher charging power through the feedback of the charging parameters of the battery, but also ensure that the voltage difference is small through the feedback of the output current of the wireless charging receiving circuit, so that the wireless charging device and the device to be charged can be wirelessly charged At the same time, it can greatly improve the wireless charging efficiency while solving the problem of charging heating.
  • the above-mentioned memory may be a volatile memory (volatile memory), such as a random access first memory (Random-Access Memory, RAM); or a non-volatile first memory (non-volatile memory), such as Read-Only Memory (ROM), Flash First Memory (flash memory), Hard Disk (HDD) or Solid State Drive (SSD); or the first type of the above
  • volatile memory such as a random access first memory (Random-Access Memory, RAM)
  • non-volatile first memory such as Read-Only Memory (ROM), Flash First Memory (flash memory), Hard Disk (HDD) or Solid State Drive (SSD); or the first type of the above
  • ROM Read-Only Memory
  • flash memory Flash First Memory
  • HDD Hard Disk
  • SSD Solid State Drive
  • each functional module in this embodiment may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the above integrated unit may be implemented in the form of hardware or software function modules.
  • the integrated unit is implemented in the form of a software function module and is not sold or used as an independent product, it can be stored in a computer-readable storage medium.
  • the technical solution of this embodiment is essentially or right
  • the part of the existing technology or all or part of the technical solution can be embodied in the form of a software product.
  • the computer software product is stored in a storage medium and includes several instructions to make a computer device (which can be an individual) A computer, a server, or a network device, etc.) or a processor (processor) executes all or part of the steps of the method of this embodiment.
  • the foregoing storage media include various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (Read Only Memory, ROM), a random access memory (Random Access Memory, RAM), a magnetic disk, or an optical disk.
  • program codes such as a USB flash drive, a mobile hard disk, a read-only memory (Read Only Memory, ROM), a random access memory (Random Access Memory, RAM), a magnetic disk, or an optical disk.
  • Embodiments of the present application provide a first computer-readable storage medium and a second computer-readable storage medium, on which a program is stored, and when the program is executed by a processor, the wireless charging method described above is implemented.
  • the program instructions corresponding to a wireless charging method in this embodiment may be stored on a storage medium such as an optical disk, a hard disk, or a USB flash drive.
  • a storage medium such as an optical disk, a hard disk, or a USB flash drive.
  • the wireless charging device sends an adjustment request to the wireless charging device; wherein the adjustment request carries the target charging power and/or the target charging current;
  • the method further includes the following steps:
  • When performing wireless charging receive an adjustment request sent by a device to be charged; wherein the adjustment request carries a target charging power and/or a target charging current;
  • the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may take the form of a hardware embodiment, a software embodiment, or an embodiment combining software and hardware. Moreover, the present application may take the form of a computer program product implemented on one or more computer usable storage media (including but not limited to disk storage and optical storage, etc.) containing computer usable program code.
  • a computer usable storage media including but not limited to disk storage and optical storage, etc.
  • These computer program instructions may also be stored in a computer readable memory that can guide a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer readable memory produce an article of manufacture including an instruction device, the instructions
  • the device implements the functions specified in the implementation flow diagram one flow or multiple flows and/or the block diagram one block or multiple blocks.
  • An embodiment of the present application provides a wireless charging method, a device to be charged, a wireless charging device, and a storage medium.
  • the wireless charging method is applied to a device to be charged, wherein the device to be charged is configured with a wireless charging receiving circuit, and the above wireless charging
  • the method includes: during wireless charging, the device to be charged detects the battery charging voltage and/or battery charging current, and simultaneously detects the output current corresponding to the wireless charging receiving circuit; determining the target charging power according to the battery charging voltage and/or battery charging current, and Determine the target charging current according to the output current; send an adjustment request to the wireless charging device; wherein the adjustment request carries the target charging power and/or target charging current; receive the adjusted wireless charging signal sent by the wireless charging device, and according to the adjusted Wireless charging signal for wireless charging.
  • the device to be charged determines the target charging power and the target charging current according to the battery charging voltage and/or battery charging current and the output current of the wireless charging receiving circuit respectively, and then can charge the wireless
  • the device sends an adjustment request carrying the target charging power and/or target charging current, and receives the adjusted wireless charging signal sent by the wireless charging device, and performs wireless charging and wireless charging according to the adjusted wireless charging signal, so that charging can be achieved Power adjustment, this method of feeding back the battery charging voltage and/or battery charging current and the output current of the wireless charging receiving circuit to the wireless charging device to adjust the charging power in real time, which can be obtained by feeding back the battery charging parameters.
  • the output current of the wireless charging receiving circuit can be fed back to ensure that the voltage difference is small, so that when the wireless charging device and the device to be charged are wirelessly charged, the problem of charging heating can be solved, and the wireless can be greatly improved. Charging efficiency.

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Abstract

一种无线充电方法、待充电设备（230）、无线充电装置（220）及存储介质，该无线充电方法应用于待充电设备（230）中，其中，待充电设备（230）配置有无线充电接收电路（231），上述无线充电方法包括：在进行无线充电时，检测电池充电电压和/或电池充电电流，同时检测无线充电接收电路（231）对应的输出电流（101）；根据电池充电电压和/或电池充电电流确定目标充电功率，以及根据输出电流确定目标充电电流（102）；向无线充电装置（220）发送调整请求；其中，调整请求携带目标充电功率和/或目标充电电流（103）；接收所述无线充电装置（220）发送的调整后的无线充电信号，并根据调整后的无线充电信号进行无线充电（104）。

Description

无线充电方法、待充电设备、无线充电装置及存储介质 技术领域
本申请实施例涉及无线充电技术领域，尤其涉及一种无线充电方法、待充电设备、无线充电装置及存储介质。
背景技术
无线充电技术源于无线电能传输技术，可分为小功率无线充电和大功率无线充电两种方式。其中，小功率无线充电常采用电磁感应式，如对手机充电的Qi方式；大功率无线充电常采用谐振式由无线充电装置将能量传送至待充电设备。
然而，无线充电的过程中，在通过增大充电电流或者充电电压来提升充电功率时，都会存在充电发热的问题，现有技术还不能在克服充电发热缺陷的同时有效地提高无线充电效率。
发明内容
本申请实施例提供一种无线充电方法、待充电设备、无线充电装置及存储介质，在无线充电装置和待充电设备进行无线充电时，能够在解决充电发热问题的同时，大大提高无线充电效率。
本申请实施例的技术方案是这样实现的：
本申请实施例提供了一种无线充电方法，应用于待充电设备，所述待充电设备配置有无线充电接收电路，所述方法包括：
在进行无线充电时，检测电池充电电压和/或电池充电电流，同时检测无线充电接收电路对应的输出电流；
根据所述电池充电电压和/或电池充电电流确定目标充电功率，以及根据所述输出电流确定目标充电电流；
向无线充电装置发送调整请求；其中，所述调整请求携带所述目标充电功率和/或所述目标充电电流；
接收所述无线充电装置发送的调整后的无线充电信号，并根据所述调整后的无线充电信号进行无线充电。
本申请实施例提供了一种无线充电方法，应用于无线充电装置，所述无线充电装置配置有无线充电发射电路，所述方法包括：
在进行无线充电时，接收待充电设备发送的调整请求；其中，所述调整请求携带目标充电功率和/或目标充电电流；
根据所述目标充电功率和/或所述目标充电电流，调整无线充电发射电路的输入电压，以获得调整后的无线充电信号；
响应所述调整请求，向所述待充电设备发送所述调整后的无线充电信号，以使所述无线充电装置的输出与所述目标充电功率和/或所述目标充电电流相匹配。
本申请实施例提供出的一种无线充电方法、待充电设备、无线充电装置及存储介质，该无线充电方法应用于待充电设备中，其中，待充电设备配置有无线充电接收电路，上述无线充电方法包括：在进行无线充电时，待充电设备检测电池充电电压和/或电池充电电流，同时检测无线充电接收电路对应的输出电流；根据电池充电电压和/或电池充电电流确定目标充电功率，以及根据输出电流确定目标充电电流；向无线充电装置发送调整请求；其中，调整请求携带目标充电功率和/或目标充电电流；接收无线充电装置发送的调整后的无线充电信号，并根据调整后的无线充电信号进行无线充电。由此可见，在本申请的实施例中，待充电设备根据电池充电电压和/或电池充电电流以及无线充电接收电路的输出电流，分别确定出目标充电功率和目标充电电流，然后可以向无线充电装置发送携带有目标充电功率和/或目标充电电流的调整请求，并接收无线充电装置发送的调整后的无线充电信号，并根据调整后的无线充电信号进行无线充电进行无线充电，从而可以实现充电功率的调整，这种将电池充电电压和/或电池充电电流和无线充电接收电路的输出电流反馈至无线充电装置，以实时 对充电功率进行调整的方法，既可以通过反馈电池的充电参数获得较高的充电功率，同时也可以通过反馈无线充电接收电路的输出电流保证压差较小，从而可以在无线充电装置和待充电设备进行无线充电时，能够在解决充电发热问题的同时，大大提高无线充电效率。
附图说明
图1为无线充电方式的实现示意图；
图2为本申请实施例中无线充电的实现示意图一；
图3为本申请实施例提出的一种无线充电方法的实现流程示意图一；
图4为本申请实施例中无线充电的实现示意图二；
图5为本申请实施例提出的一种无线充电方法的实现流程示意图二；
图6为本申请实施例提出的一种无线充电方法的实现流程示意图三；
图7为本申请实施例提出的待充电设备的组成结构示意图；
图8为本申请实施例提出的无线充电装置的组成结构示意图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述。可以理解的是，此处所描述的具体实施例仅仅用于解释相关申请，而非对该申请的限定。另外还需要说明的是，为了便于描述，附图中仅示出了与有关申请相关的部分。
现有无线充电技术标准到待充电设备还是输出固定的5V、1A或者9V、1.2A，待充电设备还需要再增加充电管理模块来对电池进行充电，效率和发热都会存在问题。
无线充电技术源于无线电能传输技术，按照无线充电原理的不同，无线充电方式主要分为电磁感应式(或者磁耦合式)、无线电波式和电磁共振式三种方式。目前，主流的无线充电标准包括Qi标准、电源事物联盟(Power Matters Alliance，PMA)标准和无线电源联盟(Alliance for Wireless Power，A4WP)等；其中，Qi标准和PMA标准均采用电磁感应式进行无线充电，A4WP标准采用电磁共振式进行无线充电。而在本申请实施例中，针对待充电设备的无线充电技术采用电磁感应式，无线充电装置和待充电设备之间以磁场传送能量，两者之间无需充电线缆连接，就可以实现为待充电设备中的电池进行无线充电，使得充电更加便捷。
无线充电工作定频模式，即无线充电的无线充电装置的无线充电发射电路的工作频率一定。无线充电系统在通过调整无线充电发射电路的输入电压来控制无线充电接收电路的输出功率时，由于发射和接收线圈通常为1:1，无线充电接收电路的输出电压和无线充电发射电路的输入电压基本是1:1关系，因此在进行无线充电时，可以直接通过调整无线充电发射电路的输入电压大小来达到调整无线充电接收电路的输出电压大小的目的。
在现有技术中，图1为无线充电方式的实现示意图，如图1所示，无线充电系统10包括电源提供设备110、无线充电装置120以及待充电设备130，其中无线充电装置120例如可以是无线充电底座，待充电设备130例如可以是终端。
电源提供设备110与无线充电装置120连接之后，会将电源提供设备110的输出电压和输出电流传输至无线充电装置120。
无线充电装置120可以通过内部的无线充电发射单元121将电源提供设备110的输出电压和输出电流转换成无线充电信号(电磁信号)进行发射。例如，该无线充电发射单元121可以将电源提供设备110的输出电流转换成交流电，并通过发射线圈或发射天线将该交流电转换成无线充电信号。
待充电设备130可以通过无线充电接收单元131接收无线充电发射单元121发射的无线充电信号，并将该无线充电信号转换成无线充电接收单元131的输出电压和输出电流。例如，该无线充电接收单元131可以通过接收线圈或接收天线将无线充电发射单元121发射的无线充电信号转换成交流电，并对该交流电进行整流和/或滤波等操作，将该交流电转换成无线充电接收单元131的输出电压和输出电流。
在本申请的实施例中，在无线充电之前，无线充电装置120可与待充电设备130预先协商无线充电发射单元121的发射功率。假设无线充电装置120与待充电设备130之间协商的功率为5W，则无线充电接收单元131的输出电压和输出电流一般为5V和1A。假设无线充电装置120与待充电设备130之间协商的功率为10.8W，则无线充电接收单元131的输出电压和输出电流一般为9V和1.2A。
若无线充电接收单元131的输出电压并不适合直接加载到电池133两端，则需要先经过待充电设备130内的充电管理单元132进行恒压和/或恒流控制，以得到待充电设备130内的电池133所预期的充电电压和/或充电电流。
充电管理单元132可用于对无线充电接收单元131的输出电压进行变换，以使得充电管理单元132的输出电压和/或输出电流满足电池133所预期的充电电压和/或充电电流的需求。在本申请的实施例中，充电管理单元132例如可以是充电集成电路(integrated circuit，IC)，升电压电路或低压差线性稳压电路(Low Dropout Regulator，LDO)等。
充电管理单元132受限于功率转换效率(也可称为能量转换效率，或电路转换效率)低下的原因，致使未被转换部分的电能以热量的形式散失。这部分热量会聚焦在待充电设备130的内部。待充电设备130的设计空间和散热空间都很小(例如，用户使用的移动终端物理尺寸越来越轻薄，同时移动终端内密集排布了大量的电子元器件以提升移动终端的性能)，这不但提升了充电管理单元132的设计难度，还会导致聚焦在待充电设备130内的热量很难及时移除，进而引发待充电设备130的异常。
为了降低充电管理单元132的发热，无线充电装置120可采用低压大电流的方式输出充电功率，例如，采用5V/4A的充电功率。作为一种可能的实现方式，无线充电发射单元121可以基于5V/4A生成无线充电信号，相应地，无线充电接收单元131可以将无线充电信号转换成5V/4A的输出电压/输出电流，而4A的大充电电流会导致无线充电发射单元121的发射线圈和无线充电接收单元131的接收线圈在电能传输过程中产生较大热量。充电过程中的发热会影响充电速度、产品寿命，以及还会降低产品可靠性。
综上，如何减小无线充电过程中的发热成为亟需解决的问题。
在本申请的实施例中，为了减小无线充电过程中线圈的发热，可采用低充电功率的方式，例如，无线充电装置120只输出最高7.5W的充电功率对待充电设备130进行充电。这样的充电方式，充电速度慢，需要花费很长的时间才能将待充电设备130的电量充满。
在另一些实施例中，相比于低充电功率的方式，为了加快充电速度，无线充电装置120提高充电功率(例如，将7.5W提高到10W)进行无线充电。如上所述，当采用高功率进行无线充电时，必然会引起线圈的发热或变换电路130的发热。在采用磁耦合方式进行无线充电的系统中，无线充电装置120和待充电设备130之间的距离，通常是很小的，无线充电装置120的发热的线圈会将热传递给待充电设备130。而对于待充电设备130自身，其线圈和变换电路的发热，会一定程度传递给电池，再加上电池在充电过程中自身的发热，会使得电池的温度很容易超过安全充电范围。当线圈的发热、变换电路的发热以及电池的发热，超过安全范围时，必须再回到低充电功率(例如，7.5W)或暂停充电的方式，来保证充电的安全。因此，该充电方式，虽然提高了无线充电的最大充电功率，但是采用最大充电功率充电的时长是很短的，而只是短时间内的较高功率无线充电，并不会将充电时长缩短到预期(例如，小于100分钟)。
此外，为了减少发热，还可以采用石墨烯、散热板等散热技术，在充电过程中进行散热。然而，这些散热技术的效果并不理想，而且会增加产品成本，占用产品的内部空间，影响产品美观。
为解决上述问题，本申请一实施例提供一种无线充电系统，该无线充电系统可以包括无线充电信号的发射装置(例如，上述无线充电装置)与无线充电信号的接收装置(例如，上述待充电设备)。无线充电信号的发射装置与无线充电信号的接收装置能够进行无线通信，且该无线充电信号的发射装置的发射功率可以基于无线充电信号的接收装置发送的反馈信息进行调节，使得无线充电信号的发射装置的发射功率与电池当前所需的充电电压和/或充电电流相匹配。由此，可根据无线充电信号的接收装置的充电需求，提高无线充电功率，提高充电速度。
其次，为了避免无线接收电路的输出电流过大，无线充电信号的接收装置也可以对无线接收电路的输出电流进行反馈，这样，无线充电信号的发射装置可以基于无线接收电路的输出电流的反馈信息，对发射功率进行调节，使得无线接收电路的输出电流满足预设条件。
通过无线充电信号的发射装置控制无线接收电路的输出电流，从而可以控制无线发射电路(其包括发射线圈)和无线接收电路(其包括接收线圈)的发热，减小充电过程中的发热。由此，相比于以上的充电方式，可以延长高功率无线充电的时长，提高充电速度，并缩短充电时间。
本发明提供的一种无线充电方法，可以应用于无线充电系统中，其中无线充电系统可以包括有无线充电装置、待充电设备以及电源设备。具体地，电源设备可以为适配器、移动电源或电脑等设备，电源设备的输出电流可以为恒定直流电、脉动直流电或交流电；无线充电装置可以配置有电压转换电路、无线充电发射电路以及处理器；待充电设备可以配置有无线充电接收电路、充电管理模 块电池以及处理器。进一步地，在该无线充电系统中，无线充电装置和待充电设备可以进行无线通信，以实现数据的传输。
本发明提供的一种无线充电方法，待充电设备根据电池充电电压和/或电池充电电流以及无线充电接收电路的输出电流，实时调整无线充电的传输功率以及电压和电流，以控制无线充电接收电路上的输出电压，提升充电效率的同时控制无线充电时的发热。
图2为本申请实施例中无线充电的实现示意图一，如图2所示，本申请实施例中的无线充电系统20包括：电源设备210、无线充电装置220和待充电设备230。
在本申请的实施例中，电源设备210，用于向无线充电装置220提供电能。该电源设备210可包括：整流电路、变压电路、控制电路和充电接口等，可实现将交流电输入转换为直流电输出，以提供给无线充电装置220。例如，电源提供设备可为适配器、充电宝或车载电源等。
在本申请的实施例中，电源设备210还可直接将交流电提供给无线充电装置220。例如，电源设备210可为交流电源。当电源设备210为交流电源时，无线充电装置220还包括用于将交流电转换为直流电的电路或模块，例如，整流滤波电路和DC/DC变换单元等。
无线充电装置220，用于将电源设备210提供的直流电或交流电，转换成电磁信号，以通过无线的方式进行电力传输。
进一步地，如上述图2所示，在本申请的实施例中，无线充电装置220可包括电压转换电路221、无线充电发射单元222和第一控制单元223。本领域技术人员可以理解，图2中所示出的无线充电装置220的组成结构并不构成对无线充电设备的限定，无线充电设备可以包括比图示更多或更少的部件，或者组合某些部件，或者不同的部件布置。
需要说明的是，电源设备210可以为普通适配器，也可以为调压适配器(即，适配器自身能够调整输出电压的大小)，甚至还可以为移动电源等；若电源设备210为调压适配器，则无线充电装置220可以去掉电压转换电路221。这里，电压转换电路221用于进行直流/直流(DC/DC)的电压变换，主要是将电源提供设备101的输出电压调节到一个固定电压值并提供给无线充电发射单元222。
无线充电发射单元222，用于将电压转换电路221提供的直流电或电源设备210提供的直流电转换为可耦合到发射线圈的交流电，并通过发射线圈将该交流电转换成电磁信号进行发射。
在本申请的实施例中，无线充电发射单元222可包括：逆变单元和谐振单元。逆变单元可包括多个开关管，通过控制开关管的导通时间(即，占空比)可调节发射功率的大小。谐振单元，用于将电能传输出去，例如，谐振单元可包括电容和发射线圈。通过调整谐振单元的工作频率，可以调节无线充电发射单元222发射功率的大小。
在本申请的实施例中，无线充电装置220可为无线充电底座或具有储能功能的设备等。当无线充电装置220为具有储能功能的设备时，其还包括储能模块(例如，锂电池235)，可从外部的电源设备210获取电能并进行存储。由此，储能模块可将电能提供给无线充电发射单元222。本领域技术人员可以理解，无线充电装置220可通过有线或无线的方式从外部的电源设备210获取电能。其中，有线的方式，例如，通过充电接口(例如，Type-C接口或者USB接口等)与电源设备210连接，获取电能。无线的方式，例如，无线充电装置220还可以包括无线充电接收单元231，其可通过无线的方式从具有无线充电功能的设备获取电能。
第一控制单元223，用于对无线充电过程进行控制。例如，第一控制单元223可与电源设备210进行通信，以确定电源提供设备的输出电压和/或输出电流。或，第一控制单元223还可与待充电设备230进行通信，实现充电信息(例如，待充电设备230内的电池235电压信息、电池235温度信息、充电模式信息等)的交互、进行无线充电的充电参数(例如，充电电压和/或充电电流)确定等。
本领域技术人员可以理解，无线充电装置220还可包括其它相关硬件、逻辑器件、单元和/或编码，以实现相应的功能。例如，无线充电装置220还可包括显示单元(例如，可为发光二极管或LED显示屏)，用于在无线充电过程中，实时显示充电状态(例如，充电进行中或终止等)。本申请实施例不作具体限定。
在本申请的实施例中，如上述图2所示，待充电设备230包括无线充电接收单元231、充电管理模块232、第二控制单元233、检测单元234、电池235和第一充电通道236。本领域技术人员可以理解，图2中所示出的待充电设备230的组成结构并不构成对待充电设备的限定，待充电设备可以包括比图示更多或更少的部件，或者组合某些部件，或者不同的部件布置。
需要说明的是，电源设备210为无线充电装置220提供供电电源，待充电设备230放置于无线充电装置220的表面，无线充电装置220通过电磁感应方式为待充电设备230内的电池235充电。这里，无线充电装置220和待充电设备230之间建立有无线连接，两者还可以相互通信。
在本申请的实施例中，无线通信的方式包括但不限于蓝牙通信、无线保真(Wireless Fidelity，WiFi)通信、基于高载波频率的近距离无线通信、光通信、超声波通信、超宽带通信和移动通信等。本申请实施例不作具体限定。
无线充电接收单元231，用于通过接收线圈将无线充电装置220的无线充电发射单元222发射的电磁信号转换成交流电，并对该交流电进行整流和/或滤波等操作，将该交流电转换成稳定的直流电，以提供给电池235充电。
在本申请的实施例中，无线充电接收单元231包括：接收线圈和AC/DC变换单元。AC/DC变换单元，用于将接收线圈接收到的交流电转换为直流电。
在本申请的实施例中，电池235可包括单电芯或多电芯。电池235包括多电芯时，该多个电芯之间为串联关系。由此，电池235可承受的充电电压为多个电芯可承受的充电电压之和，可提高充电速度，减少充电发热。
在本申请的实施例中，第一充电通道236可为导线。在第一充电通道236上可设置充电管理模块232。
充电管理模块232，用于对无线充电接收单元231输出的直流电进行升压或者降压处理，得到第一充电通道236的输出电压和输出电流。在本申请的实施例中，该第一充电通道236输出的直流电的电压值和电流值，符合电池235的充电需求，可直接加载至电池235充电。
在本申请的实施例中，充电管理模块232可以包括第二电压变换单元，第二电压变换单元可以为升压式(Boost)变换电路、降压式(Buck)变换电路、升降压式(Buck-Boost)变换电路和LDO稳压电路，还可以为电荷泵(Charge Pump)变换电路，甚至也可以为直充电路等，本申请实施例不作具体限定。
检测单元234，用于检测第一充电通道236的电压值和/或电流值。第一充电通道236的电压值和/或电流值可以指无线充电接收单元231与充电管理模块232之间的电压值和/或电流值，即无线充电接收单元231的输出电压值和/或电流值。或者，第一充电通道上的电压值和/或电流值也可以指充电管理模块232与电池235之间电压值和/或电流值，即充电管理模块232的输出电压和/或输出电流。
在本申请的实施例中，检测单元234可以包括：电压检测单元234和电流检测单元234。电压检测单元234可用于对第一充电通道236上的电压进行采样，并将采样后的电压值发送给第二控制单元233。在本申请的实施例中，电压检测单元234可以通过串联分压的方式对第一充电通道236上的电压进行采样。电流检测单元234可用于对第一充电通道236上的电流进行采样，并将采样后的电流值发送给第二控制单元233。在本申请的实施例中，电流检测单元234可以通过检流电阻和检流计对第一充电通道236上的电流进行采样检测。
第二控制单元233，用于与无线充电装置220的第一控制单元223进行通信，将检测单元234检测到电压值和/或电流值反馈给第一控制单元223。由此，第一控制单元223可根据该反馈的电压值和/或电流值，调整无线充电发射单元222的发射功率，使得第一充电通道236输出的直流电的电压值和/或电流值与电池235所需的充电电压值和/或电流值相匹配。
需要说明的是，“与电池235所需的充电电压值和/或电流值相匹配”包括：第一充电通道236输出的直流电的电压值和/或电流值与电池235所需的充电电压值和/或电流值相等或浮动预设范围(例如，电压值上下浮动100毫伏～200毫伏)。
在本申请的实施例中，第二控制单元233可以为待充电设备230中的独立的微控制单元(Microcontroller Unit，MCU)，由此，可提高控制的可靠性。在本申请的实施例中，第二控制单元1033也可以为待充电设备230中的应用处理器(Application Processor，AP)，由此，可节省硬件成本。本申请实施例不作具体限定。
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述。
本申请一实施例提供了一种无线充电方法，应用于待充电设备，该待充电设备配置有无线充电接收电路，图3为本申请实施例提出的一种无线充电方法的实现流程示意图一，如图3所示，在本申请的实施例中，上述待充电设备进行无线充电的方法可以包括以下步骤：
步骤101、在进行无线充电时，检测电池充电电压和/或电池充电电流，同时检测无线充电接收电路对应的输出电流。
在本申请的实施例中，上述待充电设备在进行无线充电时，可以检测电池充电电压和/或电池充电电流，同时检测上述无线充电接收电路对应的输出电流。
进一步地，在本申请的实施例中，上述待充电设备在进行无线充电时，还可以检测获得充电状态。需要说明的是，在本申请的实施例中，上述待充电设备进行无线充电时的上述充电状态可以包 括涓流充电、恒流充电以及恒压充电。
进一步地，在本申请的实施例中，上述待充电设备还可以配置有电池，因此在进行无线充电时，上述待充电设备可以对电池进行检测，获得上述电池充电电压和/或电池充电电流。
需要说明的是，在本申请的实施例中，上述待充电设备可以为无线充电系统中的组成部分，具体地，上述无线充电系统还可以包括无线充电装置和电源设备，其中，上述无线充电装置通过与上述待充电设备建立无线连接来向上述待充电设备进行无线充电，例如，上述无线充电装置可以为充电底座等设备；上述电源设备可以用于对上述无线充电装置进行充电，具体地，上述电源设备可以为适配器、电源等设备。
基于上述图2，无线充电系统可以包括电源设备、无线充电装置以及待充电设备；其中，无线充电装置包括电压转换电路、无线充电发射电路以及第一控制单元，待充电设备包括无线充电接收电路、充电管理模块、第二控制单元以及电池；电压转换电路用于进行直流/直流的电压变换，主要是将电源设备的第一输出电压调节到一个固定电压值提供给无线充电发射电路；充电管理模块包括升压式(Boost)变换单元、降压式(Buck)变换单元、升降压式(Buck-Boost)变换单元、电荷泵(Charge Pump)变换单元或者直充单元；无线充电发射电路包括发射线圈，无线充电接收电路包括接收线圈，通过发射线圈和接收线圈之间的电磁感应，可以实现将无线充电发射电路所接收的固定电压值传输给无线充电接收电路；第一控制单元和第二控制单元可以为微控制单元(Microcontroller Unit；MCU)，第二控制单元也可以由终端侧的应用处理器(Application Processor，AP)实现；在本申请实施例中，对此均不作具体限定。
需要说明的是，电源设备为无线充电装置提供供电电源，同时，无线充电装置和待充电设备之间采用无线通信技术，通过电磁感应实现为待充电设备中的电池充电。具体地，电源设备与无线充电装置中的电压转换电路连接，通过电压转换电路将电源设备的第一输出电压进行电压转换，该电压转换过程由第一控制单元进行控制，使得转换后得到的第二输出电压进入无线充电发射电路并由无线充电发射电路通过电磁感应传输给无线充电接收电路，通过无线充电接收电路得到第三输出电压，该第三输出电压由充电管理模块进行稳压、升压或者降压变换，该过程则是由第二控制单元进行控制的，变换后得到的充电电压和充电电流为电池充电。
进一步地，在本申请的实施例中，上述待充电设备为可以与无线充电装置进行无线通信的终端，其中，上述待充电设备可以为任何具备通信和存储功能的终端，例如：平板电脑、手机、电子阅读器、遥控器、个人计算机(Personal Computer，PC)、笔记本电脑、车载设备、网络电视、可穿戴设备、个人数字助理(Personal Digital Assistant，PDA)、便捷式媒体播放器(Portable Media Player，PMP)、导航装置等终端。
进一步地，在本申请的实施中，上述待充电设备进行无线充电之前，上述待充电设备可以先与上述无线充电装置建立无线连接并进行双向通信，以实现无线充电。
进一步地，在本申请的实施例中，上述电源设备可以用于对上述无线充电装置进行充电，具体地，上述电源设备与无线充电装置可以通过通用串行总线(Universal Serial Bus，USB)接口相连，该USB接口可以是普通的USB接口，也可以是micro USB接口或Type C接口等。USB接口中的电源线用于上述电源设备为无线充电装置充电，其中，USB接口中的电源线可以是USB接口中的VBus线和/或地线。USB接口中的数据线用于上述电源设备和无线充电装置进行双向通信，该数据线可以是USB接口中的D+线和/或D-线，所谓双向通信可以指电源设备和无线充电装置双方进行信息的交互。
进一步地，在本申请的实施例中，上述电源设备可以支持普通充电模式和快速充电模式，其中，快速充电模式的充电电流大于普通充电模式的充电电流，即快速充电模式的充电速度大于所述普通充电模式的充电速度。
需要说明的是，在本申请的实施例中，无线充电系统在通过调整无线充电发射电路的输入电压来控制无线充电接收电路的输出功率时，由于发射和接收线圈通常为1:1，无线充电接收电路的输出电压和无线充电发射电路的输入电压基本是1:1关系，因此在进行无线充电时，可以直接通过调整无线充电发射电路的输入电压大小来达到调整无线充电接收电路的输出电压大小的目的。也就是说，在无线充电工作的定频模式，即无线充电的无线充电装置的无线充电发射电路的工作频率一定时，可以直接通过调整无线充电发射电路的输入电压，以实现调整无线充电接收电路的输出电压。
步骤102、根据电池充电电压和/或电池充电电流确定目标充电功率，以及根据输出电流确定目标充电电流。
在本申请的实施例中，上述待充电设备在检测获得上述电池充电电压和/或电池充电电流以及上 述输出电流之后，可以根据上述电池充电电压和/或电池充电电流进一步确定充目标充电功率，还可以根据上述输出电流，进一步确定目标充电电流。
需要说明的是，在本申请的实施例中，上述待充电设备可以先根据上述充电状态获得与上述充电状态对应的预设参数阈值，然后将上述电池充电电压和/或电池充电电流和上述预设参数阈值进行比较，从而进一步判断是否进行上述功率调整。如果判断需要进行上述功率调整，那么上述待充电设备可以根据上述电池充电电压和/或电池充电电流进一步确定上述目标充电功率。具体地，如果上述充电状态为恒流充电，那么上述待充电设备可以先获取上述充电状态对应的预设电流阈值，然后根据上述预设电流阈值和上述电池充电电压，进一步确定上述目标充电功率。
需要说明的是，在本申请的实施例中，上述待充电设备还可以根据上述充电状态获得与上述充电状态对应的预设输出电流范围，然后将上述输出电流和上述预设输出电流范围进行比较，从而进一步判断是否进行上述功率调整。如果判断需要进行上述功率调整，那么上述待充电设备可以根据上述输出电流确定上述目标充电电流。
进一步地，在本申请的实施例中，上述待充电设备既要考虑电池的充电参数情况是否能够满足设定的充电功率，还要兼顾上述无线充电接收电路的输出电流是否能够满足设定的电流范围，即本申请提出的无线充电方法，在判断是否进行功率调整时，既需要判断是否能够保证充电效率，还需要判断是否将充电管理模块的压差控制在较小范围内。
需要说明的是，在本申请的实施例中，上述待充电设备在检测获得上述电池充电电压和/或电池充电电流以及上述输出电流之后，还可以直接将上述充电状态、上述电池充电电压和/或电池充电电流以及上述输出电流，发送至无线充电装置，以供无线充电装置进一步判断是否进行功率调整。
也就是说，在本申请的实施例中，无线充电系统中，既可以由上述待充电设备对是否进行功率调整进行判断，也可以由上述无线充电装置进一步判断是否进行功率调整。
进一步地，在本申请的实施例中，上述待充电设备在根据上述电池充电电压和/或电池充电电流确定上述目标充电功率之后，还可以直接根据上述电池充电电压和/或电池充电电流确定当前功率。具体地，上述电池充电电压和上述电池充电电流的乘积即为上述当前充电功率。
进一步地，在本申请的实施例中，上述待充电设备在分别确定上述目标充电功率和上述当前充电功率之后，便可以根据上述目标充电功率和上述当前充电功率确定功率差值。其中，上述功率差值可以表征进行调节时的调节功率量，具体地，上述待充电设备可以对上述目标充电功率和上述当前充电功率进行差值运算，从而可以获得上述功率差值。
步骤103、向无线充电装置发送调整请求；其中，调整请求携带目标充电功率和/或目标充电电流。
在本申请的实施例中，上述待充电设备在根据上述电池充电电压和/或电池充电电流确定上述目标充电功率，以及根据上述输出电流确定上述目标充电电流之后，便可以向上述无线充电装置发送调整请求。
需要说明的是，在本申请的实施例中，上述调整请求携带上述目标充电功率和/或上述目标充电电流。
进一步地，在本申请的实施中，上述待充电设备在确定需要对充电功率进行调整之后，那么上述待充电设备需要调整上述无线充电接收电路对应的输入电流和输入电压，因此，上述待充电设备需要向上述无线充电装置发送上述调整请求，从而使得上述无线充电装置调整上述无线充电发射电路对应的输入电压和输入电流，以达到调整上述无线充电发射电路的输出电压和输出电流的目的，最终调整上述无线充电接收电路对应的输入电流和输入电压。
需要说明的是，在本申请的实施例中，上述待充电设备和上述无线充电装置进行无线通信时，所述无线通信的方式包括以下通信方式中的一者或多者：蓝牙通信、无线局域网(Wireless Fidelity，Wi-Fi)通信、基于高载波频率的近距离无线通信、光通信、超声波通信、超宽带通信和移动通信。
进一步地，在本申请的实施例中，如果上述输出电流没有超过上述预设输出电流范围，那么上述待充电设备也可以不反馈上述目标充电电流，而是仅仅反馈上述目标充电功率就可以了。这种情况的话，需要无线充电装置存储有上述充电状态对应的电流阈值、电压阈值以及预设输出电流范围，这样在调整功率的时候，自然不会使得电流和电压超过阈值。
需要说明的是，在本申请的实施例中，上述待充电设备在向上述无线充电装置发送的上述调整请求时，上述调整请求还可以携带上述当前充电功率和上述功率差值。
步骤104、接收无线充电装置发送的调整后的无线充电信号，并根据调整后的无线充电信号进行无线充电。
在本申请的实施例中，上述待充电设备在向上述无线充电装置发送上述调整请求之后，便可以接收上述无线充电装置发送的、用于对所述调整请求进行响应的调整后的无线充电信号，并根据所述调整后的无线充电信号进行无线充电。
需要说明的是，在本申请的实施例中，上述无线充电装置在确定调整后的无线充电信号之后，可以将上述调整后的无线充电信号发送至待充电设备，同时，待充电设备可以通过无线充电接收电路接收上述调整后的无线充电信号，并按照上述调整后的无线充电信号进行无线充电。
进一步地，在本申请的实施例中，上述待充电设备中的无线充电接收电路在接入上述调整后的无线充电信号之后，可以输出对应的目标输出电压和目标输出电流，然后再由充电管理模块对目标输出电压和目标输出电流进行转换，并对电池进行充电。
需要说明的是，在本申请的实施例中，上述充电管理模块对应的上述目标输出电压与转换后输出的电压之间，可以具有较小的压差，从而可以避免压差过大造成的转换效率降低，温度升高的缺陷。
进一步地，在本申请的实施例中，上述无线充电装置和上述待充电设备在进行无线充电之前，上述待充电设备可以先与上述无线充电装置通过无线通信，确定出充电模式。其中，上述充电模式可以包括第一预设无线充电模式和第二预设无线充电模式。具体地，第一预设无线充电模式的充电速度大于第二预设无线充电模式的充电速度。
可选地，在本申请的实施例中，上述无线充电装置和上述待充电设备在进行无线充电时，无线充电发射单元可以支持第一预设无线充电模式和第二预设无线充电模式，无线充电发射单元在第一预设无线充电模式下对待充电设备的充电速度快于无线充电发射单元在第二预设无线充电模式下对待充电设备的充电速度。换句话说，相较于工作在第二预设无线充电模式下的无线充电发射单元来说，工作在第一预设无线充电模式下的无线充电发射单元充满相同容量的待充电设备中的电池的耗时更短。
在本申请的实施例中，第二预设无线充电模式可以为普通无线充电模式，例如可以是传统的基于QI标准、PMA标准或A4WP标准的无线充电模式。第一预设无线充电模式可为快速无线充电模式。该普通无线充电模式可以指无线充电发射单元的发射功率较小(通常小于15W，常用的发射功率为5W或10W)的无线充电模式，在普通无线充电模式下想要完全充满一较大容量电池(如3000毫安时容量的电池)，通常需要花费数个小时的时间；而在快速无线充电模式下，无线充电发射单元的发射功率相对较大(通常大于或等于15W)。相较于普通无线充电模式而言，无线充电发射单元在快速无线充电模式下完全充满相同容量电池所需要的充电时间能够明显缩短、充电速度更快。
基于上述图2，图4为本申请实施例中无线充电的实现示意图二，如图4所示，在本申请的实施例中，待充电设备还包括第二充电通道237。第二充电通道237可为导线。在第二充电通道237上可设置变换电路，用于对无线充电接收单元输出的直流电进行电压控制，得到第二充电通道237的输出电压和输出电流，以对电池进行充电。
在本申请的实施例中，变换电路可以包括用于稳压的电路。其中，用于稳压的电路与无线充电接收单元连接。
在本申请的实施例中，当采用第二充电通道对电池进行充电时，无线充电发射单元可采用恒定发射功率，无线充电接收单元接收电磁信号后，由变换电路处理为满足电池充电需求的电压和电流后，输入电池实现对电池的充电。应理解，在本申请的实施例中，恒定发射功率不一定是发射功率完全保持不变，其可在一定的范围内变动，例如，发射功率为7.5W上下浮动0.5W。
在本申请的实施例中，第二控制电路还用于根据检测到的第二充电通道的输出电压值与设定的目标值(例如，可为电池实际的需求电压值)进行比较，确定误差值，再将误差值通过数据包的形式发送给第一控制器。第二充电通道的输出电压值可为变换电路与电池之间电压值和/或电流值。
在本申请的实施例中，通过第二充电通道对电池进行充电时，无线充电装置和待充电设备可按照Qi标准进行无线充电。由此，可通过信号调制的方式，将包含上述误差值的数据信号耦合到无线充电接收单元的线圈以发送给无线充电发射单元的线圈，再传输给第一控制器。
在本申请的实施例中，通过第二充电通道对电池进行充电时，无线电能传输控制过程可以包括：第二控制电路根据检测到的第二充电通道的输出电压值与设定的目标值进行比较，确定误差值，再将误差值通过数据包的形式发送给第一控制器；第一控制器根据当前发射线圈的电流值和误差数据包的信息，确定差值，并根据差值设定新的工作频率，以调节无线充电发射单元的发射功率的大小。
本申请的实施例中，通过第一充电通道对电池进行充电的充电方式为第一充电模式，通过第二充电通道对电池进行充电的方式称为第二充电模式。无线充电装置和待充电设备可通过握手通信确 定采用第一充电模式还是第二充电模式对电池进行充电。也就是说，在本申请的实施例中，上述待充电设备在按照上述充电电压和上述充电电流进行无线充电时，可以按照所述充电电压和所述充电电流，通过所述第一预设无线充电模式对应的第一充电通道进行充电；还可以按照所述充电电压和所述充电电流，通过所述第二预设无线充电模式对应的第二充电通道进行充电。
本申请的实施例中，在无线充电装置侧，当通过第一充电模式对待充电设备充电时，无线充电发射单元的最大发射功率可为第一发射功率值。而通过第二充电模式对待充电设备进行充电时，无线充电发射单元的最大发射功率可为第二发射功率值。其中，第一发射功率值大于第二发射功率值，由此，采用第一充电模式对待充电设备的充电速度大于第二充电模式。
本申请的实施例中，在待充电设备侧，第二控制电路根据充电模式，在第一充电通道和第二充电通道之间进行切换。当采用第一充电模式时，第二控制电路控制第一充电通道上的降压电路工作。当采用第二充电模式时，第二控制电路控制第二充电通道上的变换电路工作。
进一步地，在本申请的实施例中，上述待充电设备还配置有电池，上述电池为单电芯电池或者多电芯电池。其中，所述多电芯电池由多个相互串联的电芯构成。
在本申请的实施例中，待充电设备的电池可以包括一节电芯，也可以包括相互串联的N节电芯，其中，N为大于1的正整数。以N＝2为例，电池可以包括第一电芯和第二电芯，且第一电芯和第二电芯相互串联。以充电功率等于20W，单节电芯的充电电压等于5V为例进行说明。为了满足串联双电芯对充电电压的要求，第一充电通道的输出电压/输出电流需要维持在10V/2A。这样一来，无线发射电路基于10V/2A生成电磁信号，相应地，无线接收电路将电磁信号转换成10V/2A的输出电压/输出电流，由于电流从4A降低至2A，电能传输过程产生的热量就会相应降低。因此，本申请实施例也可以采用相互串联的多节电芯，以降低无线充电发射电路和无线充电接收电路产生的热量。
进一步地，在本申请的实施例中，N的取值也可以是3，还可以是3以上的正整数。相互串联的电芯越多，电能经过无线充电发射电路和无线充电接收电路所产生的热量就越小。
在本申请的实施例中，为了保证充电速度，并进一步缓解无线充电信号的接收装置230的发热现象，本申请实施例对无线充电信号的接收装置230内部的电池结构进行了进一步的改造，引入了相互串联的多节电芯，与单电芯方案相比，如果要达到同等的充电速度，多节电芯所需的充电电流为单节电芯所需的充电电流的1/N(N为无线充电信号的接收装置内的相互串联的电芯的数目)，换句话说，在保证同等充电速度的前提下，本发明实施例可以大幅降低充电电流的大小，从而进一步减少无线充电信号的接收装置在充电过程的发热量。
在本申请的实施例中，多节电芯可以是规格、参数相同或相近的电芯，规格相同或相近的电芯便于统一管理，且选取规格、参数相同或相近的电芯能够提高多节电芯的整体性能和使用寿命。
在本申请的实施例中，在充电的过程中，第一充电通道或第二充电通道输出的电能用于对串联的多节电芯充电。在供电过程中，可采用降压电路将多节电芯的电压降压后对无线充电信号的接收装置进行系统供电。也可采用单节电芯进行系统供电。
在本申请的实施例中，为了保持多节电芯的电量均衡，在充放电过程中，可通过均衡电路对多节电芯进行电量均衡。均衡电路的实现方式很多，例如，可以在电芯两端连接负载，消耗电芯的电量，使其与其它电芯的电量保持一致，从而使得各个电芯的电压保持一致。或者，可以使电量高的电芯为电量低的电芯充电，直到各个电芯的电压一致为止。
进一步地，在本申请的实施例中，如前所述，电池的充电过程可包括涓流充电阶段、恒流充电阶段和恒压充电阶段中的一个或多个。在本申请的实施例中，为了进一步提高充电速度，通过对充电电压和电流的控制，实现缩短恒压充电阶段的充电时长或去掉恒压充电阶段。从而，相比于相关技术中的充电过程，可极大的提高充电速度。
需要说明的是，在本申请的实施例中，上述待充电设备在按照调整后的无线充电信号进行无线充电之后，上述待充电设备可以先检测当前充电状态和当前电池电压，如果所述当前充电状态为恒压充电，且当所述当前电池电压大于或者等于预设截止电压时，上述待充电设备可以按照预设限制电压和预存电流参数序列进行充电。
需要说明的是，在本申请的实施例中，所述预设截止电压小于所述预设限制电压；所述预存电流参数序列包括数值依次减小的电流参数I1、I2、I3……In，n为大于或者等于1的自然数。
在本申请的实施例中，设置一个高于电池的预设截止电压的预设限制电压，以及设置预存电流参数序列[I1、I2、I3、……、In]，n≥1。其中，I1≥I2≥I3……。应理解，预设限制电压跟电池的体系、采用的材料等相关。在本申请的实施例中，若电池的预设截止电压为V0，预设限制电压为Vn，可将Vn设置为V0+△V，例如，△V可在0.05V到0.1V之间取值。充电电流I1、I2、……、In的 值也跟电池的体系、采用的材料等相关。
在本申请的实施例中，当电池体系确定后，电池的容量确定，根据充电电压、充电电流、充电时间和电池容量的关系，当充电电压等于预设限制电压时，可确定不同阶段的充电电流的大小。在本申请的实施例中，可设置I1、I2、I3……In中，相邻两个充电电流之间的差值均为△I，例如，△I可在100mA到1A之间进行取值。
在本申请的实施例中，无论是采用上述的第一充电通道，还是第二充电通道，当电池充电电压被充到预设截止电压时，以充电电流I1对电池进行恒流充电，直到电池充电电压达到预设限制电压。由于，电池以电流I1进行恒流充电，停止后电压会产生回落。因此，再对电池以电流I2进行恒流充电，直到电池充电电压达到预设限制电压。重复以上步骤，直至使用最后一个步次充电电流In充电至预设限制电压，则可停止充电。由此，通过设置预设限制电压，以及各个阶段的充电电流，可省去相关技术中的恒压充电阶段，节极大的省充电时间。
也就是说，在本申请的实施例中，当电池充电电压充至预设截止电压时，通过多个充电阶段对电池进行充电，每个所述充电阶段对应一个充电电流，且相邻所述充电阶段的前一充电阶段对应的充电电流大于后一充电阶段对应的充电电流，每个所述充电阶段使用其对应的充电电流将所述电池的电压充电至限制电压，所述限制电压大于所述电池的预设截止电压；当多个所述充电阶段完成时，停止充电。
在本申请的实施例中，无论是采用上述的第一充电通道，还是第二充电通道，当电池充电电压被充到预设截止电压时，以充电电流I1对电池进行恒流充电，直到电池充电电压达到预设限制电压。再对电池以电流I2进行恒流充电，直到电池充电电压达到预设限制电压。重复以上步骤，直至使用最后一个步次充电电流In充电至预设限制电压，则以Vn为充电电压，恒压充电预设时间或待充电电流减小到预设值，则停止充电。相比于前述省去恒压充电阶段，该实施例中由于提高的充电截止电压，减小了恒压充电的时长，由此，相比相关技术，也可极大的节省充电时间。
也就是说，在本申请的实施例中，当电池充电电压充至预设截止电压时，通过多个充电阶段对电池进行充电，每个所述充电阶段对应一个充电电流，且相邻所述充电阶段的前一充电阶段对应的充电电流大于后一充电阶段对应的充电电流，每个所述充电阶段使用其对应的充电电流将所述电池的电压充电至限制电压，所述限制电压大于所述电池的预设截止电压；以所述限制电压对所述电池进行恒压充电，直到所述电池的充电电流达到目标恒压充电截止电流或充电时长达到预设时长，则充电停止。
在本申请的实施例中，当电池为多电芯时，上述方法中，需监测每一电芯的电压是都达到预设截止电压和限制电压。当有任一电芯的电压达到预设截止电压或限制电压时，执行充电电流的变换操作。或者，在本申请的实施例中，也可以将已经达到预设截止电压或限制电压的电芯的充电通路断开，而继续对未达到预设截止电压或限制电压的电芯执行充电。即，每一电芯都可独立按照上述的充电过程进行充电操作。
本申请实施例提出的一种无线充电方法，该无线充电方法应用于待充电设备中，其中，待充电设备配置有无线充电接收电路，上述无线充电方法包括：在进行无线充电时，待充电设备检测电池充电电压和/或电池充电电流，同时检测无线充电接收电路对应的输出电流；根据电池充电电压和/或电池充电电流确定目标充电功率，以及根据输出电流确定目标充电电流；向无线充电装置发送调整请求；其中，调整请求携带目标充电功率和/或目标充电电流；接收无线充电装置发送的调整后的无线充电信号，并根据调整后的无线充电信号进行无线充电。由此可见，在本申请的实施例中，待充电设备根据电池充电电压和/或电池充电电流以及无线充电接收电路的输出电流，分别确定出目标充电功率和目标充电电流，然后可以向无线充电装置发送携带有目标充电功率和/或目标充电电流的调整请求，并接收无线充电装置发送的调整后的无线充电信号，并根据调整后的无线充电信号进行无线充电进行无线充电，从而可以实现充电功率的调整，这种将电池充电电压和/或电池充电电流和无线充电接收电路的输出电流反馈至无线充电装置，以实时对充电功率进行调整的方法，既可以通过反馈电池的充电参数获得较高的充电功率，同时也可以通过反馈无线充电接收电路的输出电流保证压差较小，从而可以在无线充电装置和待充电设备进行无线充电时，能够在解决充电发热问题的同时，大大提高无线充电效率。
基于上述实施例，在本申请的又一实施例中，当上述充电状态为恒流充电时，上述待充电设备根据所述电池充电电压和/或电池充电电流确定目标充电功率的方法可以包括以下步骤：
步骤102a、获取充电状态对应的预设电流阈值。
在本申请的实施例中，如果上述充电状态为恒流充电，那么，上述待充电设备在检测获得上述 电池充电电压和/或电池充电电流之后，可以先获取上述充电状态对应的预设电流阈值。
进一步地，在本申请的实施例中，上述预设电流阈值可以用于提升电池充电的效率；上述预设输出电流范围可以用于减小充电管理模块的压差，以提高充电效率并减少发热。
需要说明的是，在本申请的实施例中，上述待充电设备可以预先建立充电状态与电池充电电压和/或电池充电电流阈值的对应关系，和充电状态与输出电流范围的对应关系。
进一步地，在本申请的实施例中，对于不同的充电状态，上述待充电设备可以设置不同的电池充电电压和/或电池充电电流阈值，同时还可以设置不同的输出电流阈值。
步骤102b、根据预设电流阈值和电池充电电压，确定目标充电功率。
在本申请的实施例中，如果上述充电状态为恒流充电，那么，上述待充电设备在检测获得上述电池充电电流并获取上述预设电流阈值之后，可以根据上述预设电流阈值和上述电池充电电压，进一步确定上述目标充电功率。
需要说明的是，在本申请的实施例中，上述待充电设备可以对上述电池充电电压和上述预设电流阈值进行乘积运算，从而可以获得上述目标充电功率。
需要说明的是，在本申请的实施例中，上述待充电设备可以将上述电池充电电流和上述预设电流阈值进行比较，同时，还可以将上述输出电流和预设输出电流范围进行比较，从而可以根据以上两个比较结果进一步确定是否进行功率调整。
进一步地，在本申请的实施中，如果上述电池充电电流小于上述预设电流阈值，那么上述待充电设备便可以认为上述电池充电电流不能满足预定的充电功率的要求，因此需要进行功率调整。
进一步地，在本申请的实施中，如果上述输出电流不属于上述预设输出电流范围，那么上述待充电设备便可以认为上述输出电流既不能满足预定的充电功率的要求，也不能满足预定小压差的要求，可能会造成发热，因此需要进行功率调整。
需要说明的是，在本申请的实施例中，上述待充电设备在将上述电池充电电流和上述预设电流阈值进行比较，同时将上述输出电流和预设输出电流范围进行比较之后，如果上述电池充电电流小于上述预设电流阈值，同时上述输出电流也不属于上述预设输出电流范围，那么上述待充电设备可以判定需要进行功率调整；如果上述电池充电电流大于或者等于上述预设电流阈值，或者上述输出电流属于上述预设输出电流范围，那么上述待充电设备可以判定不需要进行功率调整。
在本申请的实施例中，进一步地，当上述充电状态为恒压充电时，上述待充电设备根据所述电池充电电压和/或电池充电电流确定目标充电功率的方法可以包括以下步骤：
步骤102c、获取充电状态对应的预设电压阈值。
在本申请的实施例中，如果上述充电状态为恒压充电，那么，上述待充电设备在检测获得上述电池充电电压和/或电池充电电流之后，可以先获取上述充电状态对应的预设电压阈值。
进一步地，在本申请的实施例中，上述预设电压阈值可以用于提升电池充电的效率。
步骤102d、根据预设电压阈值和电池充电电流，确定目标充电功率。
在本申请的实施例中，如果上述充电状态为恒压充电，那么，上述待充电设备在检测获得上述电池充电电压并获取上述预设电压阈值之后，可以根据上述预设电压阈值和上述电池充电电流，进一步确定上述目标充电功率。
需要说明的是，在本申请的实施例中，上述待充电设备可以对上述电池充电电流和上述预设电压阈值进行乘积运算，从而可以获得上述目标充电功率。
需要说明的是，在本申请的实施例中，上述待充电设备可以将上述电池充电电压和上述预设电压阈值进行比较，同时，还可以将上述输出电流和预设输出电流范围进行比较，从而可以根据以上两个比较结果进一步确定是否进行功率调整。
进一步地，在本申请的实施中，如果上述电池充电电压小于上述预设电压阈值，那么上述待充电设备便可以认为上述电池充电电压不能满足预定的充电功率的要求，因此需要进行功率调整。
进一步地，在本申请的实施中，如果上述输出电流不属于上述预设输出电流范围，那么上述待充电设备便可以认为上述输出电流既不能不能满足预定的充电功率的要求，也不能满足预定小压差的要求，可能会造成发热，因此需要进行功率调整。
需要说明的是，在本申请的实施例中，上述待充电设备在将上述电池充电电压和上述预设电压阈值进行比较，同时将上述输出电流和预设输出电流范围进行比较之后，如果上述电池充电电压小于上述预设电压阈值，同时上述输出电流也不属于上述预设输出电流范围，那么上述待充电设备可以判定需要进行功率调整；如果上述电池充电电压大于或者等于上述预设电压阈值，或者上述输出电流属于上述预设输出电流范围，那么上述待充电设备可以判定不需要进行功率调整。
在本申请的实施例中，进一步地，上述待充电设备还配置有充电管理模块，上述待充电设备无线充电信号进行无线充电的方法可以包括以下步骤：
步骤201、无线充电接收电路按照无线充电信号输出目标输出电流和目标输出电压。
在本申请的实施中，上述待充电设备中的无线充电接收电路在接收无线充电装置发送的上述无线充电信号之后，可以按照上述无线充电信号输出目标数据电流和目标数据电压。
进一步地，在本申请的实施例中，上述待充电设备中的无线充电接收电路在接收上述无线充电信号之后，可以根据上述充电电压和上述充电电流，输出目标输出电压和目标输出电流，以将上述目标输出电压和上述目标输出电流传输至上述待充电设备中的充电管理模块中。
步骤202、充电管理模块对目标输出电流和目标输出电压进行转换之后，对电池进行充电。
在本申请的实施例中，上述待充电设备中的充电管理模块对上述目标充电电流和上述目标输出电压进行转换之后，便可以对电池进行充电。
需要说明的是，在本申请的实施例中，上述充电管理模块在接收到由上述无线充电接收电路传输的上述目标输出电流和上述目标输出电压之后，可以对上述目标输出电流和上述目标输出电压进行转换，获得转换后的充电电流和充电电压，然后将转换后的充电电流和充电电压输出至电池，以完成对电池的充电。
本申请实施例提供的一种无线充电方法，该无线充电方法应用于待充电设备中，其中，待充电设备配置有无线充电接收电路，上述无线充电方法包括：在进行无线充电时，待充电设备检测电池充电电压和/或电池充电电流，同时检测无线充电接收电路对应的输出电流；根据电池充电电压和/或电池充电电流确定目标充电功率，以及根据输出电流确定目标充电电流；向无线充电装置发送调整请求；其中，调整请求携带目标充电功率和/或目标充电电流；接收无线充电装置发送的调整后的无线充电信号，并根据调整后的无线充电信号进行无线充电。由此可见，在本申请的实施例中，待充电设备根据电池充电电压和/或电池充电电流以及无线充电接收电路的输出电流，分别确定出目标充电功率和目标充电电流，然后可以向无线充电装置发送携带有目标充电功率和/或目标充电电流的调整请求，并接收无线充电装置发送的调整后的无线充电信号，并根据调整后的无线充电信号进行无线充电进行无线充电，从而可以实现充电功率的调整，这种将电池充电电压和/或电池充电电流和无线充电接收电路的输出电流反馈至无线充电装置，以实时对充电功率进行调整的方法，既可以通过反馈电池的充电参数获得较高的充电功率，同时也可以通过反馈无线充电接收电路的输出电流保证压差较小，从而可以在无线充电装置和待充电设备进行无线充电时，能够在解决充电发热问题的同时，大大提高无线充电效率。
本申请一实施例提供了一种无线充电方法，应用于无线充电装置，图5为本申请实施例提出的一种无线充电方法的实现流程示意图二，如图5所示，在本申请的实施例中，上述无线充电装置进行无线充电的方法可以包括以下步骤：
步骤301、在进行无线充电时，接收待充电设备发送的调整请求；其中，调整请求携带目标充电功率和/或目标充电电流。
在本申请的实施例中，上述无线充电装置在进行无线充电时，可以接收待充电设备发送的调整请求。
需要说明的是，在本申请的实施中，上述调整请求携带有待充电设备需要的目标充电功率和/或目标充电电流。
进一步地，在本申请的实施中，上述调整请求还可以携带有当前充电功率和功率差值。
需要说明的是，在本申请的实施例中，上述无线充电装置进行无线充电时，可以检测确定充电状态，其中，上述充电状态可以包括涓流充电、恒流充电以及恒压充电。
需要说明的是，在本申请的实施例中，上述无线充电装置可以为无线充电系统中的组成部分，具体地，上述无线充电系统还可以包括待充电设备和电源设备，其中，上述无线充电装置通过与上述待充电设备建立无线连接来向上述待充电设备进行无线充电，例如，上述无线充电装置可以为充电底座等设备；上述电源设备可以用于对上述无线充电装置进行充电，具体地，上述电源设备可以为适配器、电源等设备。
如上述图2所示，无线充电系统可以包括电源设备、无线充电装置以及待充电设备；其中，无线充电装置包括电压转换电路、无线充电发射电路以及第一控制单元，待充电设备包括无线充电接收电路、充电管理模块、第二控制单元以及电池。
进一步地，在本申请的实施中，上述无线充电装置进行无线充电之前，上述待充电设备可以先与上述无线充电装置建立无线连接并进行双向通信，以实现无线充电。
进一步地，在本申请的实施例中，上述电源设备可以用于对上述无线充电装置进行充电，具体地，上述电源设备与无线充电装置可以通过通用串行总线(Universal Serial Bus，USB)接口相连，该USB接口可以是普通的USB接口，也可以是micro USB接口或Type C接口等。USB接口中的电源线用于上述电源设备为无线充电装置充电，其中，USB接口中的电源线可以是USB接口中的VBus线和/或地线。USB接口中的数据线用于上述电源设备和无线充电装置进行双向通信，该数据线可以是USB接口中的D+线和/或D-线，所谓双向通信可以指电源设备和无线充电装置双方进行信息的交互。
需要说明的是，在本申请的实施例中，上述待充电设备和上述无线充电装置进行无线通信时，所述无线通信的方式包括以下通信方式中的一者或多者：蓝牙通信、Wi-Fi通信、基于高载波频率的近距离无线通信、光通信、超声波通信、超宽带通信和移动通信。
步骤302、根据目标充电功率和/或目标充电电流，调整无线充电发射电路的输入电压，以获得调整后的无线充电信号。
在本申请的实施例中，上述无线充电装置在接收上述待充电设备发送的上述调整请求之后，可以进一步根据上述目标充电功率和/或目标充电电流，调整无线充电发射电路的输入电压，以获得调整后的无线充电信号。
进一步地，在本申请的实施例中，上述无线充电装置既要考虑待充电设备的电池的充电参数情况是否能够满足设定的充电功率，还要兼顾上述待充电设备的无线充电接收电路的输出电流是否能够满足设定的电流范围，即本申请提出的无线充电方法，无线充电装置在进行无线充电信号的确定时，既需要保证实现充电效率的提高，还需要对待充电设备的充电管理模块进行压差控制。
进一步地，在本申请的实施例中，上述无线充电信号可以包括目标充电功率、目标充电电压和目标充电电流。
进一步地，在本申请的实施例中，上述无线充电装置在接收上述待充电设备发送的上述调整请求之后，还可以进一步根据上述目标充电功率和/或目标充电电流、上述当前充电功率以及上述功率差值，调整无线充电发射电路的输入电压，以获得调整后的无线充电信号。
步骤303、响应调整请求，向待充电设备发送调整后的无线充电信号，以使无线充电装置的输出与目标充电功率和/或目标充电电流相匹配。
在本申请的实施例证，上述无线充电装置在确定出上述无线充电信号之后，可以通过上述无线充电发射电路，响应上述调整请求，向上述待充电设备发送上述调整后的无线充电信号，以使上述无线充电装置的输出与上述目标充电功率和/或所述目标充电电流相匹配。
需要说明的是，在本申请的实施例中，上述无线充电装置在确定出上述无线充电信号之后，需要对配置的电压转换电路进行控制，调整电压转换电路的输出电压和输出电流，从而可以使输入至无线充电发射电路中的电压和电流满足上述无线充电信号。
进一步地，在本申请的实施例中，上述无线充电装置在获得上述待充电设备的无线充电反馈之后，可以根据反馈对上述电压转换电路进行控制，以调节电压转换电路的输出电压和输出电流，即调整无线充电发射电路的输入电压和输入电流，从而实现对待充电设备进行无线充电时的功率调整，以使上述无线充电装置的输出与上述目标充电功率和/或所述目标充电电流相匹配。
进一步地，在本申请的实施例中，上述无线充电装置和上述待充电设备在进行无线充电之前，上述待充电设备可以先与上述无线充电装置通过无线通信，确定出充电模式。其中，上述充电模式可以包括第一预设无线充电模式和第二预设无线充电模式。具体地，第一预设无线充电模式的充电速度大于第二预设无线充电模式的充电速度。
可选地，在本申请的实施例中，上述无线充电装置和上述待充电设备在进行无线充电时，无线充电发射单元可以支持第一预设无线充电模式和第二预设无线充电模式，无线充电发射单元在第一预设无线充电模式下对待充电设备的充电速度快于无线充电发射单元在第二预设无线充电模式下对待充电设备的充电速度。换句话说，相较于工作在第二预设无线充电模式下的无线充电发射单元来说，工作在第一预设无线充电模式下的无线充电发射单元充满相同容量的待充电设备中的电池的耗时更短。
在本申请的实施例中，第二预设无线充电模式可以为普通无线充电模式，例如可以是传统的基于QI标准、PMA标准或A4WP标准的无线充电模式。第一预设无线充电模式可为快速无线充电模式。该普通无线充电模式可以指无线充电发射单元的发射功率较小(通常小于15W，常用的发射功率为5W或10W)的无线充电模式，在普通无线充电模式下想要完全充满一较大容量电池(如3000毫安时容量的电池)，通常需要花费数个小时的时间；而在快速无线充电模式下，无线充电发射单元 的发射功率相对较大(通常大于或等于15W)。相较于普通无线充电模式而言，无线充电发射单元在快速无线充电模式下完全充满相同容量电池所需要的充电时间能够明显缩短、充电速度更快。
需要说明的是，在本申请的实施中，上述无线充电装置在按照所述无线充电信号向所述待充电设备输出充电电压和充电电流时，按照所述无线充电信号，通过所述第一预设无线充电模式向所述待充电设备输出所述充电电压和所述充电电流；还可以按照所述无线充电信号，通过所述第二预设无线充电模式向所述待充电设备输出所述充电电压和所述充电电流。
本申请实施例提出的一种无线充电方法，该无线充电方法应用于无线充电装置中，其中，无线充电装置配置有无线充电发射电路，上述无线充电方法包括：无线充电装置接收待充电设备发送的调整请求；其中，调整请求携带目标充电功率和/或目标充电电流；根据目标充电功率和/或目标充电电流，调整无线充电发射电路的输入电压，以获得调整后的无线充电信号；响应调整请求，向待充电设备发送调整后的无线充电信号，以使无线充电装置的输出与目标充电功率和/或目标充电电流相匹配。由此可见，在本申请的实施例中，无线充电装置根据充电状态和待充电设备发送的调整请求中携带的目标充电功率和/或目标充电电流，确定无线充电信号，然后通过所述无线充电发射电路，向所述待充电设备输出无线充电信号，从而可以实现充电功率的调整，这种根据电池充电电压和/或电池充电电流以及无线充电接收电路的输出电流的反馈对充电功率进行调整的方法，既可以通过电池的充电参数的反馈获得较高的充电功率，同时也可以通过无线充电接收电路的输出电流的反馈保证压差较小，从而可以在无线充电装置和待充电设备进行无线充电时，能够在解决充电发热问题的同时，大大提高无线充电效率。
基于上述实施例，在本申请的另一实施例中，所述无线充电装置还配置有电压转换电路，上述无线充电装置根据所述目标充电功率和/或所述目标充电电流，调整无线充电发射电路的输入电压，以获得调整后的无线充电信号的方法具体可以为：根据目标充电功率和/或所述目标充电电流控制电压转换电路，获得调整后的无线充电信号。
在本申请的实施例中，上述无线充电装置在获得上述目标充电功率和/或所述目标充电电流之后，便可以根据上述目标充电功率和/或所述目标充电电流控制上述电压转换电路，从而可以获得上述调整后的无线充电信号。
需要说明的是，在本申请的实施例中，上述无线充电装置可以通过上述电压转化电路接收上述电源设备传输的电压和电流，上述电压转化电路可以对接收到的电流和电压进行转换，获得输出电流和输出电压。
进一步地，在本申请的实施例中，上述无线充电装置接收到上述待充电设备的调整请求之后，即确定出目标充电功率和/或所述目标充电电流，然后根据上述目标充电功率和/或所述目标充电电流，控制上述电压转换电路调整转换后的电压和电流，从而可以获得上述无线发射电路对应的调整后的无线充电信号。
在本申请的实施例中，上述无线充电装置在获得上述调整后的无线充电信号之后，上述无线充电发射电路便可以向所述待充电设备输出无线充电信号。
进一步地，在本申请的实施例中，上述无线充电装置在根据上述待充电设备的无线充电反馈确定目标充电功率和/或所述目标充电电流之后，可以根据目标充电功率和/或所述目标充电电流对上述电压转换电路进行控制，以调整电压转换电路的输出电压和输出电流，即调整无线充电发射电路的输入电压和输入电流，从而实现对待充电设备进行无线充电时的功率调整。
本申请实施例提出的一种无线充电方法，该无线充电方法应用于无线充电装置中，其中，无线充电装置配置有无线充电发射电路，上述无线充电方法包括：无线充电装置接收待充电设备发送的调整请求；其中，调整请求携带目标充电功率和/或目标充电电流；根据目标充电功率和/或目标充电电流，调整无线充电发射电路的输入电压，以获得调整后的无线充电信号；响应调整请求，向待充电设备发送调整后的无线充电信号，以使无线充电装置的输出与目标充电功率和/或目标充电电流相匹配。由此可见，在本申请的实施例中，无线充电装置根据充电状态和待充电设备发送的调整请求中携带的目标充电功率和/或目标充电电流，确定无线充电信号，然后通过所述无线充电发射电路，向所述待充电设备输出无线充电信号，从而可以实现充电功率的调整，这种根据电池充电电压和/或电池充电电流以及无线充电接收电路的输出电流的反馈对充电功率进行调整的方法，既可以通过电池的充电参数的反馈获得较高的充电功率，同时也可以通过无线充电接收电路的输出电流的反馈保证压差较小，从而可以在无线充电装置和待充电设备进行无线充电时，能够在解决充电发热问题的同时，大大提高无线充电效率。
基于上述实施例，本申请一实施例提供了一种无线充电方法，应用于无线充电系统中的待充电 设备和无线充电装置，图6为本申请实施例提出的一种无线充电方法的实现流程示意图三，如图6所示，在本申请的实施例中，上述无线充电装置和上述待充电设备进行无线充电的方法可以包括以下步骤：
步骤501、在进行无线充电时，待充电设备检测电池充电电压和/或电池充电电流，同时检测无线充电接收电路对应的输出电流。
在本申请的实施例中，上述待充电设备在进行无线充电时，可以检测电池充电电压和/或电池充电电流，同时检测无线充电接收电路对应的输出电流。
需要说明的是，在本申请的实施例中，上述待充电设备进行无线充电时的上述充电状态可以包括涓流充电、恒流充电以及恒压充电。
需要说明的是，在本申请的实施例中，上述待充电设备可以为无线充电系统中的组成部分，具体地，上述无线充电系统还可以包括无线充电装置和电源设备，其中，上述无线充电装置通过与上述待充电设备建立无线连接来向上述待充电设备进行无线充电。
步骤502、待充电设备根据电池充电电压和/或电池充电电流确定目标充电功率，以及根据输出电流确定目标充电电流。
在本申请的实施例中，上述待充电设备在检测获得上述电池充电电压和/或电池充电电流和上述输出电流之后，可以根据电池充电电压和/或电池充电电流确定目标充电功率，以及根据输出电流确定目标充电电流。
进一步地，在本申请的实施例中，上述待充电设备既要考虑电池的充电参数情况是否能够满足设定的充电功率，还要兼顾上述无线充电接收电路的输出电流是否能够满足设定的电流范围，即本申请提出的无线充电方法，在判断是否进行功率调整时，既需要判断是否能够保证充电效率，还需要判断是否将充电管理模块的压差控制在较小范围内。
步骤503、待充电设备向无线充电装置发送调整请求；其中，调整请求携带目标充电功率和/或目标充电电流。
在本申请的实施例中，如果判定进行上述功率调整，那么上述待充电设备可以向无线充电装置发送调整请求。
需要说明的是，在本申请的实施例中，上述调整请求携带目标充电功率和/或目标充电电流。
步骤504、无线充电装置根据目标充电功率和/或目标充电电流，调整无线充电发射电路的输入电压，以获得调整后的无线充电信号。
在本申请的实施例中，上述无线充电装置在接收上述待充电设备发送的上述调整请求之后，可以进一步根据目标充电功率和/或目标充电电流，调整无线充电发射电路的输入电压，以获得调整后的无线充电信号。
进一步地，在本申请的实施例中，上述无线充电装置既要考虑待充电设备的电池的充电参数情况是否能够满足设定的充电功率，还要兼顾上述待充电设备的无线充电接收电路的输出电流是否能够满足设定的电流范围，即本申请提出的无线充电方法，无线充电装置在进行无线充电信号的确定时，既需要保证实现充电效率的提高，还需要对待充电设备的充电管理模块进行压差控制。
需要说明的是，在本申请的实施例中，上述无线充电装置在获得出上述目标充电功率和/或目标充电电流之后，需要对配置的电压转换电路进行控制，调整电压转换电路的输出电压和输出电流，从而可以使输入至无线充电发射电路中的电压和电流满足上述目标充电功率和/或目标充电电流。
步骤505、待充电设备接收无线充电装置发送的调整后的无线充电信号，并根据调整后的无线充电信号进行无线充电。
在本申请的实施例中，上述待充电设备在向上述无线充电装置发送上述调整请求之后，便可以接收上述无线充电装置发送的调整后的无线充电信号，并根据所述调整后的无线充电信号进行无线充电。
需要说明的是，在本申请的实施例中，上述无线充电装置在确定无线充电信号之后，可以通过所述无线充电发射电路，向所述待充电设备输出无线充电信号。
本申请实施例提出的一种无线充电方法，该无线充电方法应用于待充电设备和无线充电装置中，其中，待充电设备配置有无线充电接收电路，上述无线充电方法包括：待充电设备检测电池充电电压和/或电池充电电流，同时检测无线充电接收电路对应的输出电流；根据电池充电电压和/或电池充电电流确定目标充电功率，以及根据输出电流确定目标充电电流；向无线充电装置发送调整请求；其中，调整请求携带目标充电功率和/或目标充电电流；接收所述无线充电装置发送的调整后的无线充电信号，并根据所述调整后的无线充电信号进行无线充电。由此可见，在本申请的实施例中，待 充电设备根据电池充电电压和/或电池充电电流以及无线充电接收电路的输出电流，分别确定出目标充电功率和目标充电电流，然后可以向无线充电装置发送携带有目标充电功率和/或目标充电电流的调整请求，并接收无线充电装置发送的调整后的无线充电信号，并根据调整后的无线充电信号进行无线充电进行无线充电，从而可以实现充电功率的调整，这种将电池充电电压和/或电池充电电流和无线充电接收电路的输出电流反馈至无线充电装置，以实时对充电功率进行调整的方法，既可以通过反馈电池的充电参数获得较高的充电功率，同时也可以通过反馈无线充电接收电路的输出电流保证压差较小，从而可以在无线充电装置和待充电设备进行无线充电时，能够在解决充电发热问题的同时，大大提高无线充电效率。
基于上述实施例，本申请的又一实施例中，图7为本申请实施例提出的待充电设备的组成结构示意图，如图7所示，本申请实施例提出的待充电设备1可以包括第一处理器11、存储有所述第一处理器11可执行指令的第一存储器12、无线充电接收电路13、电池14、检测模块15、第一无线通信模块16以及充电管理模块17。
所述检测模块15，用于在进行无线充电时，检测电池充电电压和/或电池充电电流，同时检测所述无线充电接收电路对应的输出电流。
所述第一处理器11，用于根据所述电池充电电压和/或电池充电电流确定目标充电功率，以及根据所述输出电流确定目标充电电流。
所述第一无线通信模块16，用于向无线充电装置发送调整请求；其中，所述调整请求携带所述目标充电功率和/或所述目标充电电流。
所述无线充电接收电路13，用于接收所述无线充电装置发送的调整后的无线充电信号，并根据所述调整后的无线充电信号进行无线充电。
进一步地，在本申请的实施例中，所述第一处理器11，还用于根据所述电池充电电压和/或电池充电电流确定目标充电功率之后，根据所述电池充电电压和/或电池充电电流，确定当前充电功率；以及根据所述目标充电功率和所述当前充电功率，确定功率差值。
进一步地，在本申请的实施例中，所述调整请求还携带所述当前充电功率和所述功率差值。
进一步地，在本申请的实施例中，所述检测模块15，还用于检测充电状态。
进一步地，在本申请的实施例中，所述第一处理器11，具体用于当所述充电状态为恒流充电时，获取所述充电状态对应的预设电流阈值；以及根据所述预设电流阈值和所述电池充电电压，确定所述目标充电功率。
所述第一处理器11，还具体用于当所述充电状态为恒压充电时，获取所述充电状态对应的预设电压阈值；以及根据所述预设电压阈值和所述电池充电电流，确定所述目标充电功率。
进一步地，在本申请的实施例中，所述无线充电接收电路13，具体用于按照所述无线充电信号输出目标输出电流和目标输出电压。
所述充电管理模块17，具体对所述目标输出电流和所述目标输出电压进行转换之后，对所述电池14进行充电。
进一步地，在本申请的实施例中，所述无线充电接收电路13，用于与所述无线充电装置通过无线通信确定充电模式；其中，所述充电模式包括第一预设无线充电模式和第二预设无线充电模式；所述第一预设无线充电模式的充电速度大于所述第二预设无线充电模式的充电速度。
进一步地，在本申请的实施例中，按照所述第一预设无线充电模式对所述电池14进行充电；或者，按照所述第二预设无线充电模式对所述电池14进行充电；
相应地，通过所述第一预设无线充电模式对应的第一充电通道对所述电池14进行充电；或者，通过所述第二预设无线充电模式对应的第二充电通道对所述电池14进行充电。
进一步地，在本申请的实施例中，所述电池14为单电芯电池或者多电芯电池；其中，所述多电芯电池由多个相互串联的电芯构成；相应地，所述多电芯电池在进行供电时，对所述多电芯电池输出的电压进行降压处理。
进一步地，在本申请的实施例中，在无线充电的过程中，当电池充电电压充至预设截止电压时，通过多个充电阶段对电池进行充电，每个所述充电阶段对应一个充电电流，且相邻所述充电阶段的前一充电阶段对应的充电电流大于后一充电阶段对应的充电电流，每个所述充电阶段使用其对应的充电电流将所述电池的电压充电至限制电压，所述限制电压大于所述电池的预设截止电压；当多个所述充电阶段完成时，停止充电。
进一步地，在本申请的实施例中，在无线充电的过程中，当电池充电电压充至预设截止电压时，通过多个充电阶段对电池进行充电，每个所述充电阶段对应一个充电电流，且相邻所述充电阶段的 前一充电阶段对应的充电电流大于后一充电阶段对应的充电电流，每个所述充电阶段使用其对应的充电电流将所述电池的电压充电至限制电压，所述限制电压大于所述电池的预设截止电压；以所述限制电压对所述电池进行恒压充电，直到所述电池的充电电流达到目标恒压充电截止电流或充电时长达到预设时长，则充电停止。
在本申请的实施例中，上述第一处理器11可以为特定用途集成电路(Application Specific Integrated Circuit，ASIC)、数字信号处理器(Digital Signal Processor，DSP)、数字信号处理装置(Digital Signal Processing Device，DSPD)、可编程逻辑装置(ProgRAMmable Logic Device，PLD)、现场可编程门阵列(Field ProgRAMmable Gate Array，FPGA)、中央处理器(Central Processing Unit，CPU)、控制器、微控制器、微处理器中的至少一种。可以理解地，对于不同的设备，用于实现上述处理器功能的电子器件还可以为其它，本申请实施例不作具体限定。第一存储器12用于存储可执行程序代码，该程序代码包括计算机操作指令，第一存储器12可能包含高速RAM存储器，也可能还包括非易失性存储器，例如，至少两个磁盘存储器。
在本申请的实施例中，待充电设备还可以包括第一通信接口18和第一总线19，其中，第一总线19用于连接第一通信接口18、第一处理器11以及第一存储器12以及这些器件之间的相互通信。
在本申请的实施例中，第一存储器12，用于存储指令和数据。
本申请实施例提出的一种待充电设备，其中，待充电设备配置有无线充电接收电路，在进行无线充电时，该待充电设备检测电池充电电压和/或电池充电电流，同时检测无线充电接收电路对应的输出电流；根据电池充电电压和/或电池充电电流确定目标充电功率，以及根据输出电流确定目标充电电流；向无线充电装置发送调整请求；其中，调整请求携带目标充电功率和/或目标充电电流；接收所述无线充电装置发送的调整后的无线充电信号，并根据所述调整后的无线充电信号进行无线充电。由此可见，在本申请的实施例中，待充电设备根据电池充电电压和/或电池充电电流以及无线充电接收电路的输出电流，分别确定出目标充电功率和目标充电电流，然后可以向无线充电装置发送携带有目标充电功率和/或目标充电电流的调整请求，并接收无线充电装置发送的调整后的无线充电信号，并根据调整后的无线充电信号进行无线充电进行无线充电，从而可以实现充电功率的调整，这种将电池充电电压和/或电池充电电流和无线充电接收电路的输出电流反馈至无线充电装置，以实时对充电功率进行调整的方法，既可以通过反馈电池的充电参数获得较高的充电功率，同时也可以通过反馈无线充电接收电路的输出电流保证压差较小，从而可以在无线充电装置和待充电设备进行无线充电时，能够在解决充电发热问题的同时，大大提高无线充电效率。
基于上述实施例，本申请的另一实施例中，图8为本申请实施例提出的无线充电装置的组成结构示意图，如图8所示，本申请实施例提出的无线充电装置2可以包括第二处理器21、存储有第二处理器21可执行指令的第二存储器22、无线充电发射电路23、电压转换电路24以及第二无线通信模块25，进一步地，无线充电装置2还可以包括第二通信接口26，和用于连接第二处理器21、第二存储器22以及第二通信接口26的第二总线27。
所述第二无线通信模块25，用于在进行无线充电时，接收待充电设备发送的调整请求；其中，所述调整请求携带目标充电功率和/或目标充电电流。
所述第二处理器21，用于根据所述目标充电功率和/或所述目标充电电流，调整无线充电发射电路的输入电压，以获得调整后的无线充电信号。
所述无线充电发射电路23，用于响应所述调整请求，向所述待充电设备发送所述调整后的无线充电信号，以使所述无线充电装置的输出与所述目标充电功率和/或所述目标充电电流相匹配。
进一步地，在本申请的实施例中，所述调整请求还包括当前充电功率和功率差值。
进一步地，在本申请的实施例中，所述第二处理器21，还用于接收待充电设备发送的调整请求之后，根据所述目标充电功率和/或所述目标充电电流、所述当前充电功率以及所述功率差值，调整无线充电发射电路的输入电压，以获得所述调整后的无线充电信号。
进一步地，在本申请的实施例中，所述第二处理器21，具体用于根据所述目标充电功率和/或所述目标充电电流控制所述电压转换电路24，获得所述调整后的无线充电信号。
进一步地，在本申请的实施例中，所述无线充电发射电路23，还用于与所述待充电设备通过无线通信确定充电模式；其中，所述充电模式包括第一预设无线充电模式和第二预设无线充电模式；所述第一预设无线充电模式的充电速度大于所述第二预设无线充电模式的充电速度。
进一步地，在本申请的实施例中，所述无线充电发射电路23，具体用于按照所述第一预设无线充电模式向所述待充电设备发送所述调整后的无线充电信号；或者，按照所述第二预设无线充电模式向所述待充电设备发送所述调整后的无线充电信号。
在本申请的实施例中，上述第二处理器21可以为特定用途集成电路(Application Specific Integrated Circuit，ASIC)、数字信号处理器(Digital Signal Processor，DSP)、数字信号处理装置(Digital Signal Processing Device，DSPD)、可编程逻辑装置(ProgRAMmable Logic Device，PLD)、现场可编程门阵列(Field ProgRAMmable Gate Array，FPGA)、中央处理器(Central Processing Unit，CPU)、控制器、微控制器、微处理器中的至少一种。可以理解地，对于不同的设备，用于实现上述处理器功能的电子器件还可以为其它，本申请实施例不作具体限定。第二存储器22用于存储可执行程序代码，该程序代码包括计算机操作指令，第二存储器22可能包含高速RAM存储器，也可能还包括非易失性存储器，例如，至少两个磁盘存储器。
在本申请的实施例中，第二总线27用于连接第二通信接口26、第二处理器21以及第二存储器22以及这些器件之间的相互通信。
在本申请的实施例中，第二存储器22，用于存储指令和数据。
本申请实施例提出的一种无线充电装置，其中，无线充电装置配置有无线充电发射电路，在进行无线充电时，该无线充电装置在进行无线充电时，无线充电装置接收待充电设备发送的调整请求；其中，调整请求携带目标充电功率和/或目标充电电流；根据目标充电功率和/或目标充电电流，调整无线充电发射电路的输入电压，以获得调整后的无线充电信号；响应调整请求，向待充电设备发送调整后的无线充电信号，以使无线充电装置的输出与目标充电功率和/或目标充电电流相匹配。由此可见，在本申请的实施例中，无线充电装置根据充电状态和待充电设备发送的调整请求中携带的目标充电功率和/或目标充电电流，确定无线充电信号，然后通过所述无线充电发射电路，向所述待充电设备输出无线充电信号，从而可以实现充电功率的调整，这种根据电池充电电压和/或电池充电电流以及无线充电接收电路的输出电流的反馈对充电功率进行调整的方法，既可以通过电池的充电参数的反馈获得较高的充电功率，同时也可以通过无线充电接收电路的输出电流的反馈保证压差较小，从而可以在无线充电装置和待充电设备进行无线充电时，能够在解决充电发热问题的同时，大大提高无线充电效率。
在实际应用中，上述存储器可以是易失性存储器(volatile memory)，例如随机存取第一存储器(Random-Access Memory，RAM)；或者非易失性第一存储器(non-volatile memory)，例如只读第一存储器(Read-Only Memory，ROM)，快闪第一存储器(flash memory)，硬盘(Hard Disk Drive，HDD)或固态硬盘(Solid-State Drive，SSD)；或者上述种类的第一存储器的组合，并向处理器提供指令和数据。
另外，在本实施例中的各功能模块可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能模块的形式实现。
集成的单元如果以软件功能模块的形式实现并非作为独立的产品进行销售或使用时，可以存储在一个计算机可读取存储介质中，基于这样的理解，本实施例的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)或processor(处理器)执行本实施例方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
本申请实施例提供第一计算机可读存储介质和第二计算机可读存储介质，其上存储有程序，该程序被处理器执行时实现如上所述的无线充电方法。
具体来讲，本实施例中的一种无线充电方法对应的程序指令可以被存储在光盘，硬盘，U盘等存储介质上，当存储介质中的与一种无线充电方法对应的程序指令被一电子设备读取或被执行时，包括如下步骤：
在进行无线充电时，检测电池充电电压和/或电池充电电流，同时检测所述无线充电接收电路对应的输出电流；
根据所述电池充电电压和/或电池充电电流确定目标充电功率，以及根据所述输出电流确定目标充电电流；
向无线充电装置发送调整请求；其中，所述调整请求携带所述目标充电功率和/或所述目标充电电流；
接收所述无线充电装置发送的调整后的无线充电信号，并根据所述调整后的无线充电信号进行无线充电。
当存储介质中的与一种无线充电方法对应的程序指令被一电子设备读取或被执行时，还包括如下步骤：
在进行无线充电时，接收待充电设备发送的调整请求；其中，所述调整请求携带目标充电功率和/或目标充电电流；
根据所述目标充电功率和/或所述目标充电电流，调整无线充电发射电路的输入电压，以获得调整后的无线充电信号；
响应所述调整请求，向所述待充电设备发送所述调整后的无线充电信号，以使所述无线充电装置的输出与所述目标充电功率和/或所述目标充电电流相匹配。
本领域内的技术人员应明白，本申请的实施例可提供为方法、系统、或计算机程序产品。因此，本申请可采用硬件实施例、软件实施例、或结合软件和硬件方面的实施例的形式。而且，本申请可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器和光学存储器等)上实施的计算机程序产品的形式。
本申请是参照根据本申请实施例的方法、设备(系统)、和计算机程序产品的实现流程示意图和/或方框图来描述的。应理解可由计算机程序指令实现流程示意图和/或方框图中的每一流程和/或方框、以及实现流程示意图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在实现流程示意图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在实现流程示意图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在实现流程示意图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
以上所述，仅为本申请的较佳实施例而已，并非用于限定本申请的保护范围。
工业实用性
本申请实施例提供出的一种无线充电方法、待充电设备、无线充电装置及存储介质，该无线充电方法应用于待充电设备中，其中，待充电设备配置有无线充电接收电路，上述无线充电方法包括：在进行无线充电时，待充电设备检测电池充电电压和/或电池充电电流，同时检测无线充电接收电路对应的输出电流；根据电池充电电压和/或电池充电电流确定目标充电功率，以及根据输出电流确定目标充电电流；向无线充电装置发送调整请求；其中，调整请求携带目标充电功率和/或目标充电电流；接收所述无线充电装置发送的调整后的无线充电信号，并根据调整后的无线充电信号进行无线充电。由此可见，在本申请的实施例中，待充电设备根据电池充电电压和/或电池充电电流以及无线充电接收电路的输出电流，分别确定出目标充电功率和目标充电电流，然后可以向无线充电装置发送携带有目标充电功率和/或目标充电电流的调整请求，并接收无线充电装置发送的调整后的无线充电信号，并根据调整后的无线充电信号进行无线充电进行无线充电，从而可以实现充电功率的调整，这种将电池充电电压和/或电池充电电流和无线充电接收电路的输出电流反馈至无线充电装置，以实时对充电功率进行调整的方法，既可以通过反馈电池的充电参数获得较高的充电功率，同时也可以通过反馈无线充电接收电路的输出电流保证压差较小，从而可以在无线充电装置和待充电设备进行无线充电时，能够在解决充电发热问题的同时，大大提高无线充电效率。

Claims (40)

  1. 一种无线充电方法，应用于待充电设备，所述待充电设备配置有无线充电接收电路，所述方法包括：
    在进行无线充电时，检测电池充电电压和/或电池充电电流，同时检测所述无线充电接收电路对应的输出电流；
    根据所述电池充电电压和/或电池充电电流确定目标充电功率，以及根据所述输出电流确定目标充电电流；
    向无线充电装置发送调整请求；其中，所述调整请求携带所述目标充电功率和/或所述目标充电电流；
    接收所述无线充电装置发送的调整后的无线充电信号，并根据所述调整后的无线充电信号进行无线充电。
  2. 根据权利要求1所述的方法，其中，所述根据所述电池充电电压和/或电池充电电流确定目标充电功率之后，所述方法还包括：
    根据所述电池充电电压和/或电池充电电流，确定当前充电功率；
    根据所述目标充电功率和所述当前充电功率，确定功率差值。
  3. 根据权利要求2所述的方法，其中，所述调整请求还携带所述当前充电功率和所述功率差值。
  4. 根据权利要求1所述的方法，其中，所述检测电池充电电压和/或电池充电电流，同时检测所述无线充电接收电路对应的输出电流之前，所述方法还包括：
    检测充电状态。
  5. 根据权利要求4所述的方法，其中，当所述充电状态为恒流充电时，所述根据所述电池充电电压和/或电池充电电流确定目标充电功率，包括：
    获取所述充电状态对应的预设电流阈值；
    根据所述预设电流阈值和所述电池充电电压，确定所述目标充电功率。
  6. 根据权利要求4所述的方法，其中，当所述充电状态为恒压充电时，所述根据所述电池充电电压和/或电池充电电流确定目标充电功率，包括：
    获取所述充电状态对应的预设电压阈值；
    根据所述预设电压阈值和所述电池充电电流，确定所述目标充电功率。
  7. 根据权利要求1所述的方法，其中，所述待充电设备还配置有充电管理模块，所述根据所述调整后的无线充电信号进行无线充电，包括：
    所述无线充电接收电路按照所述无线充电信号输出目标输出电流和目标输出电压；
    所述充电管理模块对所述目标输出电流和所述目标输出电压进行转换之后，对所述电池进行充电。
  8. 根据权利要求1所述的方法，其中，所述进行无线充电之前，所述方法还包括：
    与所述无线充电装置通过无线通信确定充电模式；其中，所述充电模式包括第一预设无线充电模式和第二预设无线充电模式；所述第一预设无线充电模式的充电速度大于所述第二预设无线充电模式的充电速度。
  9. 根据权利要求7和8所述的方法，其中，所述对所述电池进行充电，包括：
    按照所述第一预设无线充电模式对所述电池进行充电；或者，
    按照所述第二预设无线充电模式对所述电池进行充电。
  10. 根据权利要求9所述的方法，其中，所述按照所述第一预设无线充电模式对所述电池进行充电，包括：
    通过所述第一预设无线充电模式对应的第一充电通道对所述电池进行充电。
  11. 根据权利要求9所述的方法，其中，所述按照所述第二预设无线充电模式对所述电池进行充电，包括：
    通过所述第二预设无线充电模式对应的第二充电通道对所述电池进行充电。
  12. 根据权利要求1所述的方法，其中，所述待充电设备还配置有电池，
    所述电池为单电芯电池或者多电芯电池；其中，所述多电芯电池由多个相互串联的电芯构成。
  13. 根据权利要求12所述的方法，其中，
    所述多电芯电池在进行供电时，对所述多电芯电池输出的电压进行降压处理。
  14. 根据权利要求1所述的方法，其中，所述方法还包括：
    在无线充电的过程中，当电池充电电压充至预设截止电压时，通过多个充电阶段对电池进行充电，每个所述充电阶段对应一个充电电流，且相邻所述充电阶段的前一充电阶段对应的充电电流大于后一充电阶段对应的充电电流，每个所述充电阶段使用其对应的充电电流将所述电池的电压充电至限制电压，所述限制电压大于所述电池的预设截止电压；当多个所述充电阶段完成时，停止充电。
  15. 根据权利要求13所述的方法，其中，所述方法还包括：
    在无线充电的过程中，当电池充电电压充至预设截止电压时，通过多个充电阶段对电池进行充电，每个所述充电阶段对应一个充电电流，且相邻所述充电阶段的前一充电阶段对应的充电电流大于后一充电阶段对应的充电电流，每个所述充电阶段使用其对应的充电电流将所述电池的电压充电至限制电压，所述限制电压大于所述电池的预设截止电压；
    以所述限制电压对所述电池进行恒压充电，直到所述电池的充电电流达到目标恒压充电截止电流或充电时长达到预设时长，则充电停止。
  16. 一种无线充电方法，应用于无线充电装置，所述无线充电装置配置有无线充电发射电路，其中，所述方法包括：
    在进行无线充电时，接收待充电设备发送的调整请求；其中，所述调整请求携带目标充电功率和/或目标充电电流；
    根据所述目标充电功率和/或所述目标充电电流，调整无线充电发射电路的输入电压，以获得调整后的无线充电信号；
    响应所述调整请求，向所述待充电设备发送所述调整后的无线充电信号，以使所述无线充电装置的输出与所述目标充电功率和/或所述目标充电电流相匹配。
  17. 根据权利要求16所述的方法，其中，所述调整请求还包括当前充电功率和功率差值。
  18. 根据权利要求17所述的方法，其中，所述接收待充电设备发送的调整请求之后，所述方法还包括：根据所述目标充电功率和/或所述目标充电电流、所述当前充电功率以及所述功率差值，调整无线充电发射电路的输入电压，以获得所述调整后的无线充电信号。
  19. 根据权利要求16所述的方法，其中，所述无线充电装置还配置有电压转换电路，所述根据所述目标充电功率和/或所述目标充电电流，调整无线充电发射电路的输入电压，以获得调整后的无线充电信号，包括：
    根据所述目标充电功率和/或所述目标充电电流控制所述电压转换电路，获得所述调整后的无线充电信号。
  20. 根据权利要求16所述的方法，其中，所述进行无线充电之前，所述方法还包括：
    与所述待充电设备通过无线通信确定充电模式；其中，所述充电模式包括第一预设无线充电模式和第二预设无线充电模式；所述第一预设无线充电模式的充电速度大于所述第二预设无线充电模式的充电速度。
  21. 根据权利要求20所述的方法，其中，所述向所述待充电设备发送所述调整后的无线充电信号，包括：
    按照所述第一预设无线充电模式向所述待充电设备发送所述调整后的无线充电信号；或者，
    按照所述第二预设无线充电模式向所述待充电设备发送所述调整后的无线充电信号。
  22. 一种待充电设备，其中，所述待充电设备包括第一处理器、存储有所述第一处理器可执行指令的第一存储器、无线充电接收电路、电池、检测模块以及第一无线通信模块，
    所述检测模块，用于在进行无线充电时，检测电池充电电压和/或电池充电电流，同时检测所述无线充电接收电路对应的输出电流；
    所述第一处理器，用于根据所述电池充电电压和/或电池充电电流确定目标充电功率，以及根据所述输出电流确定目标充电电流；
    所述第一无线通信模块，用于向无线充电装置发送调整请求；其中，所述调整请求携带所述目标充电功率和/或所述目标充电电流；
    所述无线充电接收电路，用于接收所述无线充电装置发送的调整后的无线充电信号，并根据所述调整后的无线充电信号进行无线充电。
  23. 根据权利要求22所述的待充电设备，其中，
    所述第一处理器，还用于根据所述电池充电电压和/或电池充电电流确定目标充电功率之后，根据所述电池充电电压和/或电池充电电流，确定当前充电功率；以及根据所述目标充电功率和所述当 前充电功率，确定功率差值。
  24. 根据权利要求23所述的待充电设备，其中，所述调整请求还携带所述当前充电功率和所述功率差值。
  25. 根据权利要求22所述的待充电设备，其中，
    所述检测模块，还用于检测充电状态。
  26. 根据权利要求25所述的待充电设备，其中，
    所述第一处理器，具体用于当所述充电状态为恒流充电时，获取所述充电状态对应的预设电流阈值；以及根据所述预设电流阈值和所述电池充电电压，确定所述目标充电功率；
    所述第一处理器，还具体用于当所述充电状态为恒压充电时，获取所述充电状态对应的预设电压阈值；以及根据所述预设电压阈值和所述电池充电电流，确定所述目标充电功率。
  27. 根据权利要求26所述的待充电设备，其中，所述待充电设备还包括：充电管理模块，
    所述无线充电接收电路，具体用于按照所述无线充电信号输出目标输出电流和目标输出电压；
    所述充电管理模块，具体对所述目标输出电流和所述目标输出电压进行转换之后，对所述电池进行充电。
  28. 根据权利要求22所述的待充电设备，其中，
    所述无线充电接收电路，用于与所述无线充电装置通过无线通信确定充电模式；其中，所述充电模式包括第一预设无线充电模式和第二预设无线充电模式；所述第一预设无线充电模式的充电速度大于所述第二预设无线充电模式的充电速度。
  29. 根据权利要求27和28所述的待充电设备，其中，
    按照所述第一预设无线充电模式对所述电池进行充电；或者，
    按照所述第二预设无线充电模式对所述电池进行充电；
    相应地，
    通过所述第一预设无线充电模式对应的第一充电通道对所述电池进行充电；或者，
    通过所述第二预设无线充电模式对应的第二充电通道对所述电池进行充电。
  30. 根据权利要求22所述的待充电设备，其中，
    所述电池为单电芯电池或者多电芯电池；其中，所述多电芯电池由多个相互串联的电芯构成；
    相应地，
    所述多电芯电池在进行供电时，对所述多电芯电池输出的电压进行降压处理。
  31. 根据权利要求22所述的待充电设备，其中，
    在无线充电的过程中，当电池充电电压充至预设截止电压时，通过多个充电阶段对电池进行充电，每个所述充电阶段对应一个充电电流，且相邻所述充电阶段的前一充电阶段对应的充电电流大于后一充电阶段对应的充电电流，每个所述充电阶段使用其对应的充电电流将所述电池的电压充电至限制电压，所述限制电压大于所述电池的预设截止电压；当多个所述充电阶段完成时，停止充电。
  32. 根据权利要求31所述的待充电设备，其中，
    在无线充电的过程中，当电池充电电压充至预设截止电压时，通过多个充电阶段对电池进行充电，每个所述充电阶段对应一个充电电流，且相邻所述充电阶段的前一充电阶段对应的充电电流大于后一充电阶段对应的充电电流，每个所述充电阶段使用其对应的充电电流将所述电池的电压充电至限制电压，所述限制电压大于所述电池的预设截止电压；
    以所述限制电压对所述电池进行恒压充电，直到所述电池的充电电流达到目标恒压充电截止电流或充电时长达到预设时长，则充电停止。
  33. 一种无线充电装置，其中，所述无线充电装置包括第二处理器、存储有所述第二处理器可执行指令的第二存储器、无线充电发射电路、第二无线通信模块以及电压转换电路，
    所述第二无线通信模块，用于在进行无线充电时，接收待充电设备发送的调整请求；其中，所述调整请求携带目标充电功率和/或目标充电电流；
    所述第二处理器，用于根据所述目标充电功率和/或所述目标充电电流，调整无线充电发射电路的输入电压，以获得调整后的无线充电信号；
    所述无线充电发射电路，用于响应所述调整请求，向所述待充电设备发送所述调整后的无线充电信号，以使所述无线充电装置的输出与所述目标充电功率和/或所述目标充电电流相匹配。
  34. 根据权利要求33所述的无线充电装置，其中，所述调整请求还包括当前充电功率和功率差值。
  35. 根据权利要求34所述的无线充电装置，其中，
    所述第二处理器，还用于接收待充电设备发送的调整请求之后，根据所述目标充电功率和/或所述目标充电电流、所述当前充电功率以及所述功率差值，调整无线充电发射电路的输入电压，以获得所述调整后的无线充电信号。
  36. 根据权利要求33所述的无线充电装置，其中，所述无线充电装置还包括电压转换电路，
    所述第二处理器，具体用于根据所述目标充电功率和/或所述目标充电电流控制所述电压转换电路，获得所述调整后的无线充电信号。
  37. 根据权利要求33所述的无线充电装置，其中，
    所述无线充电发射电路，还用于与所述待充电设备通过无线通信确定充电模式；其中，所述充电模式包括第一预设无线充电模式和第二预设无线充电模式；所述第一预设无线充电模式的充电速度大于所述第二预设无线充电模式的充电速度。
  38. 根据权利要求37所述的方法，其中，
    所述无线充电发射电路，具体用于按照所述第一预设无线充电模式向所述待充电设备发送所述调整后的无线充电信号；或者，按照所述第二预设无线充电模式向所述待充电设备发送所述调整后的无线充电信号。
  39. 一种第一计算机可读存储介质，其上存储有程序，应用于待充电设备中，其中，所述程序被处理器执行时实现如权利要求1-15任一项所述的方法。
  40. 一种第二计算机可读存储介质，其上存储有程序，应用于无线充电装置中，其中，所述程序被处理器执行时实现如权利要求16-21任一项所述的方法。
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