CN109861335A - Charging system, electronic equipment and charge control method - Google Patents
Charging system, electronic equipment and charge control method Download PDFInfo
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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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
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Abstract
The embodiment of the invention provides a kind of charging system, electronic equipment and charge control methods, are related to field of communication technology, to solve the problems, such as to cannot be considered in terms of charging rate and the temperature rise experience of electronic equipment.Wherein, the charging system, including charging port, half straightening charging circuit and multiple battery cores；Wherein, the multiple battery core series connection, the input terminal of the half straightening charging circuit connect the charging port, and the output end of the half straightening charging circuit connects a battery core.Charging system in the embodiment of the present invention uses the concatenated mode of more battery cores, it is ensured that high charge power improves charging rate, while the charging current in each battery core is smaller, reduces heating rate, takes into account charging rate and the temperature rise experience of electronic equipment.
Description
Technical Field
The embodiment of the invention relates to the technical field of communication, in particular to a charging system, electronic equipment and a charging control method.
Background
The existing electronic equipment such as mobile phones generally supports a quick charging function, the charging power of the mainstream machine type of each brand reaches the level of about 20 w-22.5 w during quick charging, and the battery of about 3000mAh can be charged in about 90 min.
As a result of investigation, many users have been expecting a charging time within 1h, and therefore, it is necessary to continuously increase the charging power of products such as electronic devices to a power level of about 30w to 40 w. However, if the charging power of products such as electronic devices reaches a power level of about 30 w-40 w, the temperature rise experience of the existing 20w or so fast charger type cannot be maintained, and the charging speed can be remarkably increased.
Therefore, in the prior art, the temperature of the electronic equipment is inevitably increased too fast while the charging speed is increased, so that the charging speed and the temperature rise experience of the electronic equipment cannot be considered.
Disclosure of Invention
The embodiment of the invention provides a charging system, which aims to solve the problem that the charging speed and the temperature rise experience of electronic equipment cannot be considered at the same time.
In order to solve the technical problem, the invention is realized as follows:
in a first aspect, an embodiment of the present invention provides a charging system, including a charging port, including a half-voltage direct charging circuit and a plurality of battery cells; the plurality of battery cells are connected in series, the input end of the half-voltage direct charging circuit is connected with the charging port, and the output end of the half-voltage direct charging circuit is connected with one battery cell.
In a second aspect, an embodiment of the present invention further provides an electronic device, including the charging system described above.
In a third aspect, an embodiment of the present invention further provides a charging control method applied to the charging system, where the half-voltage direct charging circuit includes a control unit, a first capacitor, a first switch tube group, and a second switch tube group; the method comprises the following steps: controlling the first switch tube group to be conducted within a first preset time period so that the first capacitor is in a charging state; and controlling the second switch tube group to be conducted within a second preset time period, so that the first capacitor is in a discharging state.
In a fourth aspect, an embodiment of the present invention further provides an electronic device, which includes a processor, a memory, and a computer program stored on the memory and executable on the processor, where the computer program implements the steps of the charging control method when executed by the processor.
In a fifth aspect, the embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when being executed by a processor, the computer program implements the steps of the charging control method.
In the embodiment of the invention, the charging system is designed to be connected in series by multiple cells, and compared with a single cell charging system, under the condition that the two systems achieve the same power, in the design of the series connection by the multiple cells, the charging current of a corresponding passage of each cell is smaller than that in the single cell charging system. Therefore, the high-power charging device can reach high power in order to meet the requirement of high-speed charging speed, and meanwhile, the temperature of the machine body cannot be increased too fast due to too large charging current, so that the charging speed and the temperature rise experience of electronic equipment are considered.
Drawings
Fig. 1 is a block diagram of a charging system of an embodiment of the invention;
fig. 2 is a flowchart of a charging control method of an embodiment of the invention;
FIG. 3 is a block diagram of an electronic device of an embodiment of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In one embodiment of the present invention, a charging system is provided, which includes a charging port, a half-voltage direct charging circuit, and a plurality of battery cells; the battery cell comprises a plurality of battery cells, a charging port, a half-voltage direct charging circuit and a battery cell, wherein the battery cells are connected in series, the input end of the half-voltage direct charging circuit is connected with the charging port, and the output end of the half-voltage direct charging circuit is connected with the battery cell. That is to say, the output end of the half-voltage direct charging circuit is connected with any battery cell. The term "plurality" means two or more.
In the embodiment of the invention, the charging system is designed to be connected in series by multiple cells, and compared with a single cell charging system, under the condition that the two systems achieve the same power, in the design of the series connection by the multiple cells, the charging current of a corresponding passage of each cell is smaller than that in the single cell charging system. Therefore, the high-power charging device can reach high power in order to meet the requirement of high-speed charging speed, and meanwhile, the temperature of the machine body cannot be increased too fast due to too large charging current, so that the charging speed and the temperature rise experience of electronic equipment are considered.
In addition, in the charging system of the present embodiment, a high-efficiency half-voltage charging circuit is used in cooperation, so that compared with a direct-voltage charging circuit, the voltage of the charging port can be doubled, and the charging current on the corresponding charging port can be reduced by half. Therefore, in the embodiment, on the basis of reducing the charging current on the corresponding path of the battery cell, the charging current on the charging port is reduced by half, and the charging current on the charging port is further reduced, so that the charging system is suitable for the overcurrent capacity of the traditional charging port and the traditional data line, and the feasibility and the universality of the charging system in the embodiment are further ensured.
In one design of a single cell, a 2900mAh battery can be mounted, a 40w (5V/8A) charger is used, a maximum 8A charging current can be realized during charging, the charging lasts for about 5min, and finally the charging is completed within 1 h. The scheme adopts a low-voltage direct charging mode, the maximum path current from a charging port to a battery cell is 8A, and the corresponding path heat power consumption is I2R (64R), wherein, according to the formula: ploss ═ I2R, get thermal power consumption, Ploss represents thermal power consumption, I represents current, and R represents the impedance of the components of the path. Therefore, in the design process, strict impedance control needs to be performed on the full paths such as wires, ports, a Flexible Printed Circuit (FPC) for short, a battery protection board, and the like to reduce the thermal power consumption of the charging path, so that higher design cost needs to be paid, and finally, the high voltage generated by the paths during temperature rise and large current is limited, so that the charging current of 8A can be realized only when the electric quantity is low, the charging current lasts for 5min, and then the current charging needs to be reduced. Further, when the battery capacity reaches 3500mAh to 4000mAh, no matter a low-voltage direct charging mode or other high-efficiency voltage reduction schemes are adopted, in order to increase the charging speed, the current of the battery needs to be designed to be more than 6A, and the problems that the design cost needs to be increased, the impedance of a path needs to be controlled, and the temperature rise of the whole machine needs to be limited, the current is reduced, and the performance of the charger is sacrificed are solved. It can be seen that the main disadvantages of this solution are: charging current of the battery is too large, which results in too large heat consumption in the whole machine, if the temperature rise of the whole machine needs to be controlled, the impedance R of each component of the path needs to be reduced, and correspondingly, more cost needs to be increased in design, for example, an electricity meter Integrated Circuit (Integrated Circuit,abbreviated as IC), using an FPC with a larger copper thickness, etc.
Therefore, compared with the design scheme of the single battery, the embodiment can effectively control the temperature rise of the whole machine and reduce the production cost.
In a design scheme of the double batteries, double battery cores are connected in series, and a scheme of high-voltage direct charging of a charger is adopted for charging so as to improve charging power. If two 1800mAh battery cores are connected in series, the charging current is designed to be 4A, the corresponding charging multiplying power can reach 2.2c, the maximum current of a path from a charging port to the battery core is only 4A, and the corresponding path thermal power consumption is I2R (16R), the heat power consumption of the path part is equivalent to the heat power consumption level of the path of the traditional low-voltage direct charging scheme of about 20w, the cost is not required to be additionally increased, the impedance of the path is reduced, and the corresponding charging power is increased to 40w (10 v/4A). The scheme can better play the performance of the charger, continuously output the maximum power to quickly charge the electronic equipment in the constant current stage, and the control of heat power consumption is easier to realize. However, according to the scheme, the 40w quick charging can be realized only by using the customized charging port capable of passing 4A current and the data line wire, the compatibility of the charging line is limited, and the cost is not optimal.
It can be seen that the thermal power consumption of the charging circuit in this embodiment is comparable to the thermal power consumption of the charging circuit in the high-voltage direct charging scheme, compared to the above-described two-cell design. And on the basis of reaching 4A current on the passage, the current on the charging port can be halved, for example, reduced to 2A, so that the requirements on the charging port and the data line wire rod are reduced, the device is suitable for the traditional charging port and the data line wire rod, and the production cost is further reduced.
Preferably, the charging port is a Universal Serial Bus (USB) interface.
Referring to fig. 1, the half-voltage direct charging circuit includes a control unit 1, a first capacitor Cfly, a first switch tube group and a second switch tube group, the first switch tube group is connected to a charging port, and the second switch tube group is grounded; the control unit 1 is configured to control the first switch tube group to be turned on within a first preset time period, so that the first capacitor Cfly is in a charging state, and control the second switch tube group to be turned on within a second preset time period, so that the first capacitor Cfly is in a discharging state.
In fig. 1, the charging port is a USB interface 2.
Based on a charge Pump (charge Pump) technology applied by a half-voltage direct charging circuit, the charging system in this embodiment may be implemented by an architecture formed by a first switch tube group and a second switch tube group, which is similar to the existing charge Pump, and the switching control (switching control), that is, the control unit 1 in this embodiment, controls the on and off of the switch tubes in the first switch tube group and the second switch tube group according to a preset switch logic, so as to implement half-voltage charging. For example, when Ibat is 4A, Ibus is 2A and VBUS is at 2 x VBAT.
In specific implementation, the control unit 1 may control the first switch tube group to be turned on within a first preset time according to preset switch logic, so that the first capacitor Cfly is in a charging state; and within a second preset time period after the first preset time period, controlling the second switch tube group to be conducted so that the first capacitor Cfly is in a discharging state, and thus realizing half-voltage charging.
The first preset time is a first switching period, and the second preset time is a second switching period.
Referring to fig. 1, further, the first switching tube group includes a first mos transistor Q1 and a third mos transistor Q3, and the second switching tube group includes a second mos transistor Q2 and a fourth mos transistor Q4; the control unit 1 is connected to the gates of the first mos transistor Q1, the second mos transistor Q2, the third mos transistor Q3 and the fourth mos transistor Q4, respectively, the drain of the first mos transistor Q1 is connected to the charging port (USB interface 2), the source of the first mos transistor Q1 is connected to the drain of the second mos transistor Q2, the source of the second mos transistor Q2 is connected to the drain of the third mos transistor Q3, the source of the third mos transistor Q3 is connected to the drain of the fourth mos transistor Q4, and the source of the fourth mos transistor Q4 is grounded; a first plate of the first capacitor Cfly is connected with a drain Q2 of the second mos transistor and a source of the second mos transistor Q2, and a second plate of the first capacitor Cfly is connected with a source of the third mos transistor Q3 and a drain of the fourth mos transistor Q4; the plurality of cells includes a first Cell1 and a second Cell 2; the first plate of the first capacitor Cfly is connected in parallel with the first Cell1, and the second Cell2 is grounded.
The embodiment provides a charging system of double batteries, the batteries are connected in a double-battery series charging and discharging manner, a charge Pump architecture composed of Q1-Q2-Q3-Q4 is realized, the architecture is similar to the existing charge Pump architecture, and the switching control logic module is used for controlling the on and off of four pipes Q1-Q2-Q3-Q4, so that half-voltage charging is realized, namely when Ibat is 4A, the Ibus current is 2A, and the VBUS upper voltage is 2 VBAT.
In the first switching period, the Q1 and the Q3 are controlled to be conducted, and the Vin voltage charges the first capacitor Cfly; in the second switching period, the Q2 and the Q4 are controlled to be conducted, and the first capacitor Cfly discharges the output end. The first capacitor Cfly is charged first, then the first capacitor Cfly discharges the output, and the output voltage is half of the input voltage by controlling the duty ratio of charging and discharging.
In the embodiment, a scheme that two battery cells are connected in series is adopted, so that the cell voltage of the charging terminal can be increased to 8.8V or more from about 4.4V of a traditional single battery cell, and the corresponding working voltage is 6.8V-8.8V when the charging terminal is started; and a half-voltage charging scheme with conversion efficiency reaching 97% is used to replace a high-voltage direct charging scheme, the current on a charging wire and a port is controlled within 2A, the design cost of the whole scheme is further reduced, and the compatibility of the common charging wire is improved.
Furthermore, the charging system further includes a second capacitor Cout, a first plate of the second capacitor Cout is connected in parallel with a first plate of the first capacitor Cfly, and a second plate of the second capacitor Cout is grounded.
The first capacitor Cfly is connected in parallel with the second capacitor Cout, and the Vin voltage charges the first capacitor Cfly and the second capacitor Cout in a first switching period.
The current value of the input end of the half-voltage direct charging circuit is equal to one half of the current value of the output end of the half-voltage direct charging circuit.
Compared with the double-battery high-voltage direct charging scheme, the embodiment adopts the half-voltage direct charging circuit, so that the current value of the input end of the half-voltage direct charging circuit is equal to one half of the current value of the output end of the half-voltage direct charging circuit. For example, in combination with the aforementioned dual-battery high-voltage direct charging scheme, the present embodiment can make the charging current on the charging path reach 4A, and simultaneously make the charging current on the charging port decrease to 2A. Therefore, the overcurrent capacity of the charging port and the charging data line is not limited, and the cost is reduced.
Further, the current at the input end of the half-voltage direct charging circuit is 2A.
The overcurrent capacity of the conventional data line is 2A, and the conventional data line can be used for the charging system in the embodiment, so that the compatibility of the conventional data line is ensured, and the feasibility and the universality of the charging system in the embodiment are improved, so that more users can be served.
In further embodiments, Q1 and Q2 can be designed to be in a direct mode, that is, when the charging current reaches 2A, the charging current can be switched from a half-voltage charging state to a direct charging state, so as to reduce the duration of high voltage on the charging port during charging and improve the possible corrosion risk of the charging port.
The charging system in the embodiment of the invention is similar to a high-voltage direct charging system with double batteries, and also needs a discharge conversion IC to realize power supply to an electronic equipment system, and a booster (boost charger) IC realizes compatibility with a common charger.
In addition, in the embodiment of the invention, the output voltage of the corresponding charger can reach about 18V, is twice higher than the output voltage of the charger with a high-voltage direct charging specification, has better application expansibility for subsequent wireless charging, and can be directly used for inputting the transmitting terminal for wireless charging without additionally developing a new charger.
To sum upAs mentioned above, when using single battery charging, if it is necessary to increase the charging speed, it is usually necessary to design a battery with a larger charging current, such as 4000mAh, and when using 6A to charge, the charging rate is 1.5C, and the heat power consumption on the charging path corresponding to the current of 6A is I2R, when the current is larger, the thermal power consumption is larger, and the requirement of temperature rise of the whole machine is limited, and the charging by the current of 6A or more can not be realized. Therefore, the double-battery series connection charging system is provided, when a single battery cell is 2000mAh, 4A is used for charging two battery cells connected in series, the charging multiplying power can reach 2C, and the charging speed is higher than that of 6A used for a single battery cell of 4000 mAh.
Moreover, the scheme of half-voltage charging is combined, the current on the charging wire is reduced by improving the voltage on the charging wire, and the design cost of the charging wire and the charging port can be reduced.
Therefore, the charging power can be increased to a level of about 40w, and the charging of the battery of the electronic equipment is completed within 1 h; the charging scheme of half-voltage compatible direct charging is adopted to replace a high-voltage direct charging scheme, so that the requirements of the whole scheme on a charging line and a charging port are reduced, and the cost is more advantageous than that of a double-battery high-voltage direct charging scheme; meanwhile, the quick charging effect can be realized by using a common charging wire, and the compatibility is better.
The communication unit 3 in fig. 1 is used for performing fast charging communication with the charger 4 to realize a fast charging function.
The communication unit 3 is connected with a central processing unit 5 of the electronic device, and the central processing unit 5 is also connected with an electricity meter 6.
Another embodiment of the present invention provides an electronic device including the charging system in the above embodiment.
In the embodiment of the invention, the charging system is designed to be connected in series by multiple cells, and compared with a single cell charging system, under the condition that the two systems achieve the same power, in the design of the series connection by the multiple cells, the charging current of a corresponding passage of each cell is smaller than that in the single cell charging system. Therefore, the high-power charging device can reach high power in order to meet the requirement of high-speed charging speed, and meanwhile, the temperature of the machine body cannot be increased too fast due to too large charging current, so that the charging speed and the temperature rise experience of electronic equipment are considered.
In addition, in the charging system of this embodiment, a high-efficiency half-voltage charging circuit is used in cooperation, so that the voltage of the charging port can be doubled and the charging current on the corresponding charging port can be reduced by half compared with the case of using a direct-voltage charging circuit. Therefore, in the embodiment, on the basis of reducing the charging current on the corresponding path of the battery cell, the charging current on the charging port is reduced by half, and the charging current on the charging port is further reduced, so that the charging system is suitable for the overcurrent capacity of the traditional charging port and the traditional data line, and the feasibility and the universality of the charging system in the embodiment are further ensured.
The electronic device in this embodiment includes any device having a charging function, such as a mobile phone and a tablet computer.
The electronic device provided in the embodiment of the present invention includes the charging system in the apparatus embodiment of fig. 1, and details are not repeated here to avoid repetition.
Fig. 2 shows a flowchart of a charging control method according to another embodiment of the present invention, which is applied to the charging system in the above embodiment, wherein the half-voltage dc-dc charging circuit includes a control unit 1, a first capacitor Cfly, a first switch tube group, and a second switch tube group; the method comprises the following steps:
step S1: and controlling the first switch tube group to be conducted within a first preset time period so that the first capacitor is in a charging state.
Step S2: and controlling the second switch tube group to be conducted within a second preset time period, so that the first capacitor is in a discharging state.
In the embodiment of the invention, the charging system is designed to be connected in series by multiple cells, and compared with a single cell charging system, under the condition that the two systems achieve the same power, in the design of the series connection by the multiple cells, the charging current of a corresponding passage of each cell is smaller than that in the single cell charging system. Therefore, the high-power charging device can reach high power in order to meet the requirement of high-speed charging speed, and meanwhile, the temperature of the machine body cannot be increased too fast due to too large charging current, so that the charging speed and the temperature rise experience of electronic equipment are considered.
In addition, in the charging system of this embodiment, a high-efficiency half-voltage charging circuit is used in cooperation, and the first switch tube group is controlled to be turned on within a first preset time period according to a preset switch logic, so that the first capacitor Cfly is in a charging state; and within a second preset time period after the first preset time period, controlling the second switch tube group to be conducted so that the first capacitor Cfly is in a discharging state, and thus realizing half-voltage charging. Compared with a direct voltage charging circuit, the voltage of the charging port can be doubled, and the charging current on the corresponding charging port is reduced by half. Therefore, in the embodiment, on the basis of reducing the charging current on the corresponding path of the battery cell, the charging current on the charging port is reduced by half, and the charging current on the charging port is further reduced, so that the charging system is suitable for the overcurrent capacity of the traditional charging port and the traditional data line, and the feasibility and the universality of the charging system in the embodiment are further ensured.
The charging control method provided by the embodiment of the present invention is applied to the charging system in the apparatus embodiment of fig. 1, and is not described herein again to avoid repetition.
Fig. 3 is a schematic diagram of a hardware structure of an electronic device 100 for implementing various embodiments of the present invention, where the electronic device 100 includes, but is not limited to: radio frequency unit 101, network module 102, audio output unit 103, input unit 104, sensor 105, display unit 106, user input unit 107, interface unit 108, memory 109, processor 110, and power supply 111. Those skilled in the art will appreciate that the electronic device configuration shown in fig. 3 does not constitute a limitation of the electronic device, and that the electronic device may include more or fewer components than shown, or combine certain components, or a different arrangement of components. In the embodiment of the present invention, the electronic device includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal, a wearable device, a pedometer, and the like.
The processor 110 is configured to control the first switching tube group to be turned on within a first preset time period, so that the first capacitor is in a charging state; and controlling the second switch tube group to be conducted within a second preset time period, so that the first capacitor is in a discharging state.
In the embodiment of the invention, the charging system is designed to be connected in series by multiple cells, and compared with a single cell charging system, under the condition that the two systems achieve the same power, in the design of the series connection by the multiple cells, the charging current of a corresponding passage of each cell is smaller than that in the single cell charging system. Therefore, the high-power charging device can reach high power in order to meet the requirement of high-speed charging speed, and meanwhile, the temperature of the machine body cannot be increased too fast due to too large charging current, so that the charging speed and the temperature rise experience of electronic equipment are considered.
In addition, in the charging system of this embodiment, a high-efficiency half-voltage charging circuit is used in cooperation, and the first switch tube group is controlled to be turned on within a first preset time period according to a preset switch logic, so that the first capacitor Cfly is in a charging state; and within a second preset time period after the first preset time period, controlling the second switch tube group to be conducted so that the first capacitor Cfly is in a discharging state, and thus realizing half-voltage charging. Compared with a direct voltage charging circuit, the voltage of the charging port can be doubled, and the charging current on the corresponding charging port is reduced by half. Therefore, in the embodiment, on the basis of reducing the charging current on the corresponding path of the battery cell, the charging current on the charging port is reduced by half, and the charging current on the charging port is further reduced, so that the charging system is suitable for the overcurrent capacity of the traditional charging port and the traditional data line, and the feasibility and the universality of the charging system in the embodiment are further ensured.
It should be understood that, in the embodiment of the present invention, the radio frequency unit 101 may be used for receiving and sending signals during a message transmission or call process, and specifically, after receiving downlink data from a base station, the downlink data is processed by the processor 110; in addition, the uplink data is transmitted to the base station. Typically, radio frequency unit 101 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 101 can also communicate with a network and other devices through a wireless communication system.
The electronic device provides wireless broadband internet access to the user via the network module 102, such as assisting the user in sending and receiving e-mails, browsing web pages, and accessing streaming media.
The audio output unit 103 may convert audio data received by the radio frequency unit 101 or the network module 102 or stored in the memory 109 into an audio signal and output as sound. Also, the audio output unit 103 may also provide audio output related to a specific function performed by the electronic apparatus 100 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 103 includes a speaker, a buzzer, a receiver, and the like.
The input unit 104 is used to receive an audio or video signal. The input Unit 104 may include a Graphics Processing Unit (GPU) 1041 and a microphone 1042, and the Graphics processor 1041 processes image data of a still picture or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 106. The image frames processed by the graphic processor 1041 may be stored in the memory 109 (or other storage medium) or transmitted via the radio frequency unit 101 or the network module 102. The microphone 1042 may receive sound and may be capable of processing such sound into audio data. The processed audio data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 101 in case of a phone call mode.
The electronic device 100 also includes at least one sensor 105, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor that can adjust the brightness of the display panel 1061 according to the brightness of ambient light, and a proximity sensor that can turn off the display panel 1061 and/or the backlight when the electronic device 100 is moved to the ear. As one type of motion sensor, an accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), detect the magnitude and direction of gravity when stationary, and can be used to identify the posture of an electronic device (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), and vibration identification related functions (such as pedometer, tapping); the sensors 105 may also include fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc., which are not described in detail herein.
The display unit 106 is used to display information input by a user or information provided to the user. The Display unit 106 may include a Display panel 1061, and the Display panel 1061 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.
The user input unit 107 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the electronic device. Specifically, the user input unit 107 includes a touch panel 1071 and other input devices 1072. Touch panel 1071, also referred to as a touch screen, may collect touch operations by a user on or near the touch panel 1071 (e.g., operations by a user on or near touch panel 1071 using a finger, stylus, or any suitable object or attachment). The touch panel 1071 may include two parts of a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 110, and receives and executes commands sent by the processor 110. In addition, the touch panel 1071 may be implemented in various types, such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. In addition to the touch panel 1071, the user input unit 107 may include other input devices 1072. Specifically, other input devices 1072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail herein.
Further, the touch panel 1071 may be overlaid on the display panel 1061, and when the touch panel 1071 detects a touch operation thereon or nearby, the touch panel 1071 transmits the touch operation to the processor 110 to determine the type of the touch event, and then the processor 110 provides a corresponding visual output on the display panel 1061 according to the type of the touch event. Although in fig. 3, the touch panel 1071 and the display panel 1061 are two independent components to implement the input and output functions of the electronic device, in some embodiments, the touch panel 1071 and the display panel 1061 may be integrated to implement the input and output functions of the electronic device, and is not limited herein.
The interface unit 108 is an interface for connecting an external device to the electronic apparatus 100. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 108 may be used to receive input (e.g., data information, power, etc.) from an external device and transmit the received input to one or more elements within the electronic apparatus 100 or may be used to transmit data between the electronic apparatus 100 and the external device.
The memory 109 may be used to store software programs as well as various data. The memory 109 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 109 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.
The processor 110 is a control center of the electronic device, connects various parts of the entire electronic device using various interfaces and lines, performs various functions of the electronic device and processes data by operating or executing software programs and/or modules stored in the memory 109 and calling data stored in the memory 109, thereby performing overall monitoring of the electronic device. Processor 110 may include one or more processing units; preferably, the processor 110 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 110.
The electronic device 100 may further include a power source 111 (such as a battery) for supplying power to each component, and preferably, the power source 111 may be logically connected to the processor 110 through a power management system, so as to implement functions of managing charging, discharging, and power consumption through the power management system.
In addition, the electronic device 100 includes some functional modules that are not shown, and are not described in detail herein.
Preferably, an embodiment of the present invention further provides an electronic device, which includes a processor 110, a memory 109, and a computer program stored in the memory 109 and capable of running on the processor 110, where the computer program, when executed by the processor 110, implements each process of the above charging control method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not described here again.
The embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements each process of the above charging control method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. A charging system comprises a charging port, and is characterized by comprising a half-voltage direct charging circuit and a plurality of battery cells; wherein,
the plurality of battery cores are connected in series, the input end of the half-voltage direct charging circuit is connected with the charging port, and the output end of the half-voltage direct charging circuit is connected with a battery core.
2. The charging system of claim 1, wherein the half-voltage direct charging circuit comprises a control unit, a first capacitor, a first switch tube group and a second switch tube group, the first switch tube group is connected to the charging port, and the second switch tube group is grounded;
the control unit is used for controlling the first switch tube group to be conducted within a first preset time period so that the first capacitor is in a charging state, and controlling the second switch tube group to be conducted within a second preset time period so that the first capacitor is in a discharging state.
3. The charging system of claim 2, wherein the first switch bank comprises a first mos transistor and a third mos transistor, and the second switch bank comprises a second mos transistor and a fourth mos transistor;
the control unit is respectively connected with the gates of the first mos transistor, the second mos transistor, the third mos transistor and the fourth mos transistor, the drain of the first mos transistor is connected with the charging port, the source of the first mos transistor is connected with the drain of the second mos transistor, the source of the second mos transistor is connected with the drain of the third mos transistor, the source of the third mos transistor is connected with the drain of the fourth mos transistor, and the source of the fourth mos transistor is grounded;
a first electrode plate of the first capacitor is connected with a drain electrode of the second mos transistor and a source electrode of the second mos transistor, and a second electrode plate of the first capacitor is connected with a source electrode of the third mos transistor and a drain electrode of the fourth mos transistor;
the plurality of cells includes a first cell and a second cell;
the first polar plate of the first capacitor is connected with the first battery cell in parallel, and the second battery cell is grounded.
4. The charging system of claim 3, further comprising a second capacitor having a first plate connected in parallel with a first plate of the first capacitor and a second plate connected to ground.
5. The charging system of claim 3, wherein a current value at the input of the half-voltage direct charging circuit is equal to one-half of a current value at the output of the half-voltage direct charging circuit.
6. The charging system of claim 5, wherein the current at the input of the half-voltage direct charging circuit is 2A.
7. An electronic device comprising the charging system according to any one of claims 1 to 6.
8. A charging control method is applied to the charging system of any one of claims 1 to 6, wherein the half-voltage direct charging circuit comprises a control unit, a first capacitor, a first switch tube group and a second switch tube group;
the method comprises the following steps:
controlling the first switch tube group to be conducted within a first preset time period so that the first capacitor is in a charging state;
and controlling the second switch tube group to be conducted within a second preset time period, so that the first capacitor is in a discharging state.
9. An electronic device, comprising a processor, a memory, a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of the charge control method of claim 8.
10. A computer-readable storage medium, characterized in that a computer program is stored thereon, which computer program, when being executed by a processor, carries out the steps of the charging control method according to claim 8.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910152614.4A CN109861335A (en) | 2019-02-28 | 2019-02-28 | Charging system, electronic equipment and charge control method |
| PCT/CN2020/072759 WO2020173249A1 (en) | 2019-02-28 | 2020-01-17 | Charging system, electronic device, and charging control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910152614.4A CN109861335A (en) | 2019-02-28 | 2019-02-28 | Charging system, electronic equipment and charge control method |
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| CN109861335A true CN109861335A (en) | 2019-06-07 |
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| CN201910152614.4A Pending CN109861335A (en) | 2019-02-28 | 2019-02-28 | Charging system, electronic equipment and charge control method |
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| CN113030781A (en) * | 2021-02-26 | 2021-06-25 | 维沃移动通信有限公司 | Electric leakage detection method and electronic equipment |
| CN115001062A (en) * | 2021-09-10 | 2022-09-02 | 荣耀终端有限公司 | Charging management circuit and electronic device |
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Also Published As
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| WO2020173249A1 (en) | 2020-09-03 |
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Application publication date: 20190607 |