CN214674418U - Charging wire and charging system - Google Patents

Abstract

The utility model relates to an electronic equipment accessory field especially relates to a charging wire and charging system. The utility model provides a charging wire includes an at least input, two at least outputs and controller, one of them output is equipped with the data access foot, the no data access foot of all the other outputs, the controller is connected with the V + of input, the controller still with be equipped with the data access foot the output D-, D + is connected, only detect the D-, D + of the output that is equipped with the data access foot when the controller inserts electronic equipment, then the V + of controller control input end interface is to the V + output that is equipped with the output of data access foot fill voltage soon. By adopting the charging wire, voltage distribution can be realized when multiple interfaces are accessed, so that the problem of overhigh output power caused by fast charging when multiple interfaces are accessed can be avoided. The utility model provides a charging system adopts above-mentioned charging wire, under the prerequisite of guaranteeing charging safety, still can satisfy the demand that diversified charges.

Description

Charging wire and charging system

[ technical field ] A method for producing a semiconductor device

The utility model relates to an electronic circuit field, its in particular to novel charging wire and charging system.

[ background of the invention ]

With the development of science and technology, people frequently use electronic devices in daily life, and due to the difference of charging interfaces and charging voltages of different electronic devices, the electronic devices are often required to be charged by using a plurality of data lines or multi-interface chargers.

The appearance of one-to-many charging wires is favored by consumers. However, although the existing one-to-two and one-to-three charging lines can satisfy the requirement of simultaneously inserting a plurality of electronic devices for charging, the existing data lines cannot satisfy the requirement of fast charging, and the electronic devices are charged abnormally due to power utilization conflict when multiple interfaces are used simultaneously.

In addition, in order to meet the problem that there is no conflict between multi-interface charging in the existing multi-interface charger, multiple control chips are often required to be embedded in the charger, and in order to meet the charging requirement, the charger is large in size, heavy and inconvenient to carry about.

[ Utility model ] content

For solving the technical problem that current charging wire exists, the utility model provides a novel charging wire and charging system. In order to solve the technical problem, the utility model provides a charging wire, it includes an at least input, two at least outputs and controller, one of them output is equipped with the data access foot, and all the other outputs do not have the data access foot, the input interface includes V +, D-, D + and V-, the output that is equipped with the data access foot includes V +, D-, D + and GND, the controller is connected with the V + of input, the controller still with be equipped with the data access foot the output D-, D + is connected, only detect the D that is equipped with the output of data access foot when the controller, D + inserts electronic equipment, then the V + of controller control input end interface fills voltage soon to the V + output that is equipped with the output of data access foot.

Preferably, the charging wire includes first switch and the second switch of being connected with the controller, and wherein, first switch is located between input V + and the output that no data line inserts the foot, and the second switch is located between input V + and the output V + that is equipped with the data line and inserts the foot.

Preferably, the output of the no data access pin comprises V2+, V-, and V + of the input interface is connected to the output of the no data access pin V2+ via a first switch.

Preferably, when only the output terminal provided with the data access pin is connected with the electronic device, the D-and D + of the output terminal sends a first signal to the controller, the controller controls the second switch to be turned on, the first switch to be turned off, and the controller controls the input terminal V + to output a first preset voltage.

Preferably, the charging wire further comprises a detector, and the detector is connected with an output end V-of the no-data access pin and an output end GND provided with the data access pin.

Preferably, when the output terminal with the data access pin and the output terminal without the data access pin are both connected to the electronic device, the controller receives D-, D + of the output terminal and sends a first signal and a second signal sent by the detector to the controller, the controller controls the first switch and the second switch to be turned on, and the controller controls the output terminal V + to output a second preset voltage.

Preferably, when the output terminal with the data access pin and the output terminal without the data access pin are both connected to the electronic device, the controller receives D-, D + of the output terminal and sends a first signal and a second signal sent by the detector to the controller, the controller controls the first switch and the second switch to be switched on, and the output terminal V + outputs a second preset voltage.

Preferably, the charging line further comprises an LDO unit, and the LDO unit is disposed between the input end V + and the controller, and is configured to provide the operating voltage to the controller through the input end V +.

Preferably, the charging line is provided with a plurality of output ends of data access pins and/or a plurality of output ends of no data access pins.

In order to solve the technical problem, the utility model provides a charging system, it includes as above charging wire and the head that charges, wherein the input of charging wire is inserted and is connected the head that charges, the output and the electronic equipment electricity of charging wire are connected and the power supply. Compared with the prior art, the utility model provides a pair of charging wire, and charging system have following beneficial effect:

the utility model provides a charging wire can require to fill soon or carry out ordinary charging based on the operation of male electronic equipment. The charging wire includes an at least input, two at least outputs and controller, and one of them output is equipped with the data access foot, and other outputs do not have the data access foot, the input interface includes V +, D-, D + and V-, the output that is equipped with the data access foot includes V +, D-, D + and GND, the controller is connected with the V + of input, the controller still with be equipped with the output of data access foot D-, D + be connected, only detect the D that is equipped with the output of data access foot when the controller, D + inserts electronic equipment, then the V + of controller control input interface is to the V + output of being equipped with the output of data access foot fill voltage soon. By adopting the charging wire, voltage distribution can be realized when multiple interfaces are accessed, so that unsafe accidents such as explosion of charging equipment and the like caused by overhigh output power and overlarge generated heat energy when multiple interfaces are still rapidly charged can be avoided.

The utility model provides a charging wire when independently inserting the electronic equipment that supports filling soon in the charging wire, can realize that single agreement fills soon. When an output end supporting common charging is inserted into the electronic equipment, a common charging power supply signal can be correspondingly output. Furthermore, the utility model provides a need not to set up and fill integrated chip or a plurality of chip soon in the charging wire, provide a small and exquisite, portable, can realize voltage distribution's charging wire.

The utility model provides an in the charging wire, the switch can be divided into first switch and second switch, supports the output that ordinary charges to be connected to first switch, supports the output that fills soon to be connected to the second switch. The access control of the corresponding charging interface can be realized based on the control of the controller on or off the first switch and the second switch, so that the charging output control is realized based on a simple circuit connection relation.

The utility model discloses in, the electric connection relation between concrete input interface and the output terminal interface, based on simple circuit connection, can follow the signal of telecommunication of input access can learn what kind of signal of power should be exported with what kind of signal of power that corresponds to simplified the processing degree of difficulty of controller, can adopt ordinary chip can realize corresponding control, need not to adopt the high chip that fills soon of integrated level, also need not to put into a plurality of processing chips, can reduce the work energy consumption of charging wire, still can further reduce raw materials cost.

Furthermore, in the utility model, when only the output end supporting the quick charging is detected to be inserted into the electronic device, the quick charging power signal is correspondingly output; and when the output end supporting the quick charging and the output end supporting the common charging are both inserted into the electronic equipment, the output end supporting the common charging correspondingly outputs the common charging power supply signal. Based on the difference of the detection signals, different power signals can be correspondingly selected to be output, so that the requirement of single interface quick charging is met, and when a plurality of interfaces are accessed, the interfaces work in a common charging mode to ensure the safety.

The utility model discloses in, the converting circuit module still includes the LDO unit, the LDO unit with the V + of input interface is connected, the setting of LDO unit can make the V + of input to the controller provides stable voltage.

The utility model discloses in, adopt P type MOS or N type MOS to conduct first switch, second switch can improve the sensitivity that the circuit detected in the charging wire also can reduce the energy consumption that carries out the switch and switch simultaneously.

The utility model discloses in, the detector can divide into sampling resistance, current detector, voltage detector, and its type that can simplify the acquisition signal can be simplified the charging wire reduces the reliance to filling the chip soon to the processing of signal, adopts ordinary processing chip can satisfy the demand of using.

In order to meet the requirement of diversified charging, the input end can include any one or two of USB input end, TYPE-C input end, the output end includes any two or several kinds in Micro-USB output end, Lightning output end and TYPE-C output end.

The utility model also provides a charging system, it includes as above the charging wire reaches rather than the complex head that charges, the head that charges can do the charging wire provides stable input power the utility model provides a charging system adopts above-mentioned charging wire, under the prerequisite of guaranteeing charging safety, need not to set up the higher chip of a plurality of chips or integrated level, also can satisfy the demand that diversified charges.

[ description of the drawings ]

Fig. 1 is a schematic diagram of a module of a charging wire according to a first embodiment of the present invention.

Fig. 2 is a schematic diagram showing the electrical connection of the charging wires shown in fig. 1.

Fig. 3 is a schematic diagram of the circuit blocks of the controller in a first operating state.

Fig. 4 is a schematic diagram of the circuit blocks of the controller in a second operating state.

Fig. 5 is a schematic diagram of the circuit blocks of the controller in a third operating state.

Fig. 6 is a schematic diagram of a circuit connection relationship of charging wires according to the second embodiment of the present invention.

Fig. 7 is a schematic structural diagram of a charging system according to a third embodiment of the present invention.

The attached drawings indicate the following:

10. a charging wire; 11. an input end; 13. an output end; 15. a conversion circuit module; 151. a controller; 1511. a signal receiving unit; 1512. a comparison unit; 1513. a signal transmitting unit; 152. a detector; 153. an LDO unit; 154. a switch; 1541. a first switch; 1542. a second switch; 131. supporting a quick charging output end; 132. supporting a common charging output terminal;

20. a charging wire; 21. an input end; 23. an output end; 231. a first output terminal; 232. a second output terminal; 25. a conversion circuit module; 251. a controller; 252. a detector; 253. an LDO unit; 2541. a first switch; 2542. a second switch;

30. a charging system; 31. a charging wire; 311. an input end; 312. an output end; 313. a connecting member; 32. a charging head; 321. a charging interface; 90. an electronic device.

[ detailed description ] embodiments

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and the embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Referring to fig. 1, a first embodiment of the present invention provides a charging cable 10, which can be used in conjunction with a charging adapter or a charging plug. The charging line 10 includes at least one input terminal 11, at least two output terminals 13, and a conversion circuit module 15 connecting the input terminal 11 and the output terminals 13. The voltage inputted in the input terminal 11 can be outputted via the output terminal 13 after being converted based on the converting circuit module 15. The conversion circuit module 15 can detect the electrical connection state of the output end 13, and adjust the voltage finally output by the output end 13 based on the detection signal.

Referring to fig. 2, the conversion circuit module 15 includes a controller 151 and a detector 152, the detector 152 is connected to the output end 13 for detecting an electronic device access state of the output end 13, the detector 152 is further connected to the controller 151 for electrically inserting and feeding back to the controller 151 whether an electronic device is electrically inserted into the output end 13, and the controller 151 controls the conduction of different corresponding output ends 13 after receiving a signal fed back by the detector and controls the output power signal. The controller 151 is connected to the input terminal 11 and the output terminal 13, respectively, and the controller 151 receives and identifies a state that the output terminal 13 is connected to the electronic device, and sends a voltage adjustment signal to the input terminal 11 to adjust a corresponding output voltage. For example, when the input terminal 11 inputs the ultra-high voltage of 36V, the output terminal 13 at least includes a fast charging support output terminal 131 and a normal charging support output terminal 132. The charging cord 10 may have several modes of operation as follows:

when one of the output terminals 131 for supporting fast charging is separately connected to the electronic device, the detector 152 may detect a corresponding connection signal and then send a corresponding signal to the controller 151, and the controller 151 may control and respectively output a 24V power signal to the output terminal 13 to realize fast charging.

When two output terminals 13 are connected to the electronic device at the same time, the detector 152 may detect a corresponding connection signal and then send the corresponding signal to the controller 151, and the controller 151 may control and output a 5V power signal to the two output terminals 13, respectively.

When one of the output terminals 13 supporting the normal charging is separately connected to the electronic device, the detector 152 may detect a corresponding connection signal and then send the corresponding signal to the controller 151, and the controller 151 may control and respectively output a 5V power signal to the output terminals.

Specifically, in this embodiment, one of the output terminals is provided with a data access pin, and the other end of the output terminal has no data access pin. That is, the output 13 may be defined as an output 1301 with a data access pin and as an output 1302 without a data access pin.

Further, as shown in fig. 1 and fig. 2, the interface of the input terminal 11 includes V +, D-, D +, and V-, the output terminal 1301 with the data access pin includes V +, D-, D +, and GND, and the output terminal 1302 without the data access pin includes V2+, V-. The V + of the input terminal 11 interface is connected to the output terminal V2+ without a data access pin through a first switch 1541, the V + of the input terminal 11 interface is connected to the output terminal 1301 with a data access pin through a second switch 1542, and includes V +, and the controller 151 is connected to the first switch 1541 and the second switch 1542, respectively.

It will be appreciated that in some embodiments, the input 11 includes either or both of a USB input, a TYPE-C input.

It is understood that the output terminal 13 includes any two or more of a Micro-USB output terminal, a Lightning output terminal, and a TYPE-C output terminal. Wherein, TYPE-C output end is for realizing the quick charge terminal of ultra-high pressure.

Specifically, as shown in fig. 1, the input terminal 11 is a USB input terminal, and the output terminal 13 sequentially includes a Micro-USB output terminal, a Lightning output terminal, and a TYPE-C output terminal. The conversion circuit module 15 can be disposed independently of the input end 11 and the output end 13, and the conversion circuit module 15 can also be disposed in a housing together with the input end 11 or the output end 13.

Referring to FIG. 2, the interface of the input terminal 11 includes V +, D-, D + and V-, the interface of the Micro-USB output terminal and the interface of the Lightning output terminal include V2+ and V-, and the interface of the TYPE-C output terminal includes V +, D-, D + and GND.

Further, the conversion circuit module 15 includes a controller 151, an LDO Unit 153 (low dropout regulator), a detector 152, and two switches 154, wherein the controller 151 may be an MCU (Microcontroller Unit), and the specific connection relationship is as follows:

v + of the USB input port is connected to two switches 154, and the two switches 154 are a first switch 1541 and a second switch 1542, respectively, wherein the first switch 1541 is connected to V2+ of the Micro-USB output port and the Lightning output port, respectively, and the second switch 1542 is connected to V + of the TYPE-C output port.

After V + of the USB input interface can be connected to the LDO unit 153, it is connected to the controller 151. The controller 151 may electrically connect and control the first and second switches 1541, 1542 to be closed or opened.

D-and D + of the USB input end interface are respectively connected to D-and D + of the TYPE-C output end interface. In the actual operation process, in order to control the electrical signal transmission of D + and D-, a branch connected with the controller 151 may be provided between D-, D + of the USB input port and D-, D + of the TYPE-C output port.

The GND of the USB input port can be connected to the V-of the Micro-USB output port, the V-of the Lightning output port, and the GND of the TYPE-C output port synchronously so as to provide a negative pole of a power supply. In order to realize that the controller 151 controls the power signal outputted by the Micro-USB output terminal, the Lightning output terminal and the TYPE-C output terminal, the controller 151 may also be connected to the Micro-USB output terminal, the V-of the Lightning output terminal interface, and to the GND of the TYPE-C output terminal interface. Further, in order to better monitor the access status of the Micro-USB output, the Lightning output, and the TYPE-C output to the electronic device, a detector 152 may be disposed between the Micro-USB output, the V-of the Lightning output interface, and the GND connected to the TYPE-C output interface and the controller 151.

In this embodiment, the detector 152 may include any one or more of a sampling resistor, a current detector, a voltage detector, or an access detection chip. The sampling unit can gather Micro-USB output the Lightning output, and insert electronic equipment's state in the TYPE-C output, if insert have electronic equipment, the electronic equipment of access support information such as ordinary charging or quick charge.

Taking the detector 152 as a sampling resistor as an example, the detector 152 may provide a corresponding detection signal for the controller 151, where the detection signal may include whether an electronic device is connected to the corresponding output terminal 13, and if so, the controller 151 further controls the first switch 1541 and/or the second switch 1542 to be turned on.

Further, the detector 152 may also detect insertion of an electronic device and generate a feedback signal to be transmitted to the controller 151, and the controller 151 may control handshake recognition with the inserted single sub-device to determine that the single sub-device is specifically required for fast charging or general charging, so as to match a corresponding power signal.

In this embodiment, the first switch 1541 and the second switch 1542 include a Metal Oxide Semiconductor Field Effect Transistor (MOS), and the first switch 1541 and the second switch 1542 may include a P-type MOS or an N-type MOS, which can be set by a person skilled in the art according to actual situations, and the application is not limited thereto.

Specifically, as shown in fig. 2, and fig. 3 to 5, the operation process of the charging cable 10 provided includes:

the first working state: when only the output terminal with the data access pin is connected to the electronic device, the D-and D + signals of the output terminal send a first signal to the controller 151, the controller controls the second switch 1542 to be turned on, the first switch 1541 is turned off, and the controller 151 controls the input terminal V + to output a first preset voltage.

As shown in fig. 3, the controller 151 includes a signal receiving circuit 1511 that can receive a signal generated after an electronic device is added to an output 1301 provided with a data access pin, where the received signal is a first signal of D-, D + of the output 1301 provided with the data access pin, the controller 151 further includes a comparing circuit 1512 and a signal transmitting circuit 1513, the comparing circuit 1512 is configured to compare the received first signal with a preset signal, and further send an on signal and an off signal to a second switch 1542 and a first switch 1541 respectively based on the signal transmitting circuit 1513, and the signal transmitting circuit 1513 sends a voltage adjustment instruction to an input terminal V + and controls the input terminal V + to output a first preset voltage.

Under this operating condition, when the electronic device supporting fast charging is inserted into the TYPE-C output port, the detector 152 on the branch where this port is located may detect that the electronic device is electrically inserted and generate a feedback signal to be transmitted to the controller 151, the controller 151 controls the second switch 1542 to be in a conducting state, and a power signal input by the corresponding input terminal 11 may correspondingly output a power signal according to the fast charging requirement of the electronic device, so as to support the fast charging of the electronic device.

And when the electronic device supporting the normal fast charging is inserted into the TYPE-C output terminal interface, the detector on the branch where the interface is located may detect that the electronic device is electrically inserted and generate a feedback signal to be transmitted to the controller 151, the controller 151 further controls the second switch 1542 to be in a conducting state, and the power signal input by the corresponding input terminal 11 may correspondingly output the power signal according to the normal charging requirement of the electronic device, thereby supporting the fast charging of the electronic device to perform the normal charging.

The second working state: in this embodiment, the detector 152 is connected to the output terminal V-of the no-data access pin and the output terminal GND provided with the data access pin, when only the output terminal of the no-data access pin is connected to the electronic device, the detector 152 detects a current signal of the output terminal V-of the no-data access pin and sends a second signal to the controller, the controller 151 controls the first switch 1541 to be turned on, the second switch 1542 is turned off, and the controller 151 further controls the input terminal V + to output a second preset voltage. The corresponding second preset voltage can be a common charging voltage to satisfy common charging requirements such as Lightning output end and Micro-USB output end.

As shown in fig. 4, the signal receiving circuit 1511 may also receive a second signal from the detector 152, the comparing circuit 1512 receives the second signal and compares the second signal with a preset signal, and further sends an off signal and an on signal to the second switch 1542 and the first switch 1541, respectively, based on the signal transmitting circuit 1513, and the signal transmitting circuit 1513 sends a voltage adjusting instruction to the input terminal V + and controls the input terminal V + to output a second preset voltage.

The third working state: in this embodiment, the detector 152 is connected to the output terminal V-of the non-data access pin and the output terminal GND of the data access pin, when both the output terminal of the data access pin and the output terminal of the non-data access pin are connected to the electronic device, the controller receives D-, D + of the output terminal and sends a first signal and a second signal sent by the detector to the controller, the controller controls the first switch and the second switch to be turned on, and the controller controls the input terminal V + to output a second preset voltage. It can be seen that, in this operating state, when the electronic device supporting normal charging or fast charging is first plugged into the lighting output terminal interface and/or the Micro-USB output terminal interface, the controller 151 may control the plugged electronic device supporting normal charging to perform normal charging according to a conventional output voltage. In the use scene, the electronic equipment inserted into the TYPE-C output terminal interface at the back carries out ordinary charging according to the set conventional output voltage no matter whether the electronic equipment supports quick charging or not.

As shown in fig. 5, the signal receiving circuit 1511 may further receive a first signal from D-, D + of the output 1301 provided with the data access pin and a second signal from the detector 152, the comparing circuit 1512 compares the received first signal and the received second signal with a preset signal, further sends a conducting signal to both the second switch 1542 and the first switch 1541 based on the signal transmitting circuit 1513, and the signal transmitting circuit 1513 sends a voltage adjusting instruction to the input terminal V +, and controls the input terminal V + to output a second preset voltage.

It is understood that the signal receiving circuit 1511, the comparing circuit 1512, and the signal transmitting circuit 1513 may be implemented by existing circuits or may be designed based on requirements. The comparator 1512 may be a voltage comparator.

In this embodiment, in order to enable the charging line 10 to have a more stable charging effect, the charging line 10 further includes an LDO unit 153, and the LDO unit 153 is disposed between the input end V + and the controller, and is used for providing the operating voltage from the input end V + to the controller 151.

It is thus clear that, compared with the prior art, the utility model provides a charging wire 10 can require to fill soon or carry out ordinary charging based on the operation of male electronic equipment. When the electronic device supporting the fast charging is independently connected into the charging line 10, the fast charging with a single protocol can be realized. When an electronic device supporting normal charging is accessed, the controller 151 may detect that the electronic device supporting normal charging is accessed correspondingly through the detector 152, and further control the voltage of the power signal to be reduced to the normal output voltage, so that all the interfaces of the output terminal 13 perform normal charging. Therefore, the safety device can avoid the unsafe accidents that the charging equipment explodes or burns users due to overhigh output power and overlarge generated heat energy when a plurality of interfaces are still subjected to quick charging when being accessed, and has good safety performance.

In addition, in the charging wire 10 that this embodiment provided, it adopts simple circuit structure, can reduce the dependence to chip integrated circuit, has simplified the process of signal detection and processing, consequently, need not to put into specific chip of filling soon, also can satisfy the demand of regulating and control to the output signal that charges of charging wire.

Referring to fig. 3, a second embodiment of the present invention provides another charging wire 20, which is different from the first embodiment in that the output terminals 23 include only two, one of the output terminals 23 can support fast charging, and the other output terminal 23 supports normal charging. As can be seen from fig. 3, the corresponding first switch 2541 is connected to the first output terminal 231 supporting normal charging, and the second switch 2542 is connected to the second output terminal 232 supporting fast charging. The first switch 2541 and the second switch 2542 may be MOS switches.

The controller 251, the LDO unit 253, and the related limitations of the first switch 2541 and the second switch 2542 are the same as those in the first embodiment, and are not described herein again.

It is understood that in other embodiments, the number of the output terminals provided with the data access pins may also be one, three, four, etc., and the number of the output terminals corresponding to the output terminals without the data access pins may further be one, three, four, etc.

The first output terminal 231 and the second output terminal 232 may include any one of a Micro-USB output terminal, a Lightning output terminal, a TYPE-C output terminal, and the like. It is understood that the specific output terminal types may be adjusted based on different requirements.

In some embodiments, the first output 231 may be a TYPE-C output, and the second output 232 may be a Micro-USB output or a Lightning output.

It can be seen that the charging line 20 provided in this embodiment can support one-to-two interfaces to perform common charging simultaneously, and the one-to-two interfaces can also support quick charging when one of the output interfaces capable of supporting quick charging is single. Compared with the prior art, based on the added simple circuit control, the hidden trouble that the power utilization conflict occurs when the multi-interface is charged to cause equipment abnormity can be effectively avoided, and therefore a safe and stable multi-interface charging scheme can be provided.

Referring to fig. 4, a third embodiment of the present invention provides a charging system 30, which includes a charging wire 31 and a charging head 32 cooperating with the charging wire 31, wherein the charging wire 31 may include the charging wire 10 according to the first embodiment and the charging wire 20 according to the second embodiment. Specifically, the charging line 31 includes an input terminal 311, a connecting member 313 and an output terminal 312, which are connected in sequence, wherein the converting circuit module can be disposed in the connecting member 313.

The output terminal 312 is connectable to the electronic device 90 and provides a source of electrical energy thereto, and the input terminal 311 is connectable to the charging connector 321 of the charging connector 32. The charging head 32 can provide a stable power input for the charging wire 31. It is understood that the charging plug 32 may be a charging adapter, a charging socket, a charging plug, or the like.

Therefore, compared with the fast charging integrated chip which needs to meet the requirements of charging protocol comparison, handshake recognition and the like in the prior art, the charging system provided by the embodiment is lower in hardware equipment requirement, and is safer and more stable.

Based on the charging system provided by the embodiment, simultaneous work of a one-to-two interface, a one-to-three interface or a one-to-many interface can be supported, and super fast charging when an output end interface supporting fast charging is singly used can be supported by part of the charging system, so that diversified charging requirements can be met.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, and improvements made within the principle of the present invention should be included within the protection scope of the present invention.

Claims (10)

1. A charging wire, characterized in that: the charging wire includes an at least input, two at least outputs and controller, and one of them output is equipped with the data access foot, and other outputs do not have the data access foot, the input interface includes V +, D-, D + and V-, the output that is equipped with the data access foot includes V +, D-, D + and GND, the controller is connected with the V + of input, the controller still with be equipped with the output of data access foot D-, D + be connected, only detect the D that is equipped with the output of data access foot when the controller, D + inserts electronic equipment, then the V + of controller control input interface is to the V + output of being equipped with the output of data access foot fill voltage soon.

2. The charging cord as claimed in claim 1, wherein: the charging wire includes first switch and the second switch of being connected with the controller, and wherein, first switch is located between input V + and the output that does not have the data line access foot, and the second switch is located between input V + and the output V + that is equipped with the data line access foot.

3. The charging cord as set forth in claim 2, wherein: the output of the no data access pin comprises V2+, V-, and V + of the input interface is connected to the output of the no data access pin V2+ through the first switch.

4. The charging cord as set forth in claim 2, wherein: when only the output end provided with the data access pin is connected with the electronic equipment, the D-and D + of the output end send a first signal to the controller, the controller controls the second switch to be switched on, the first switch to be switched off, and the controller controls the input end V + to output a first preset voltage.

5. The charging cord as claimed in claim 3, characterized in that: the charging wire further comprises a detector, and the detector is connected with an output end V-of the non-data access pin and an output end GND provided with the data access pin.

6. The charging cord as claimed in claim 5, wherein: when the output end with the data access pin and the output end without the data access pin are both connected with the electronic equipment, the controller receives D-and D + of the output end and sends a first signal and a second signal sent by the detector to the controller, the controller controls the first switch and the second switch to be conducted, and the controller controls the output end V + to output a second preset voltage.

7. The charging cord as claimed in claim 5, wherein: when the output end with the data access pin and the output end without the data access pin are both connected with the electronic equipment, the controller receives D-and D + of the output end and sends a first signal and a second signal sent by the detector to the controller, the controller controls the first switch and the second switch to be switched on, and the output end V + outputs a second preset voltage.

8. The charging cord as claimed in claim 1, wherein: the charging wire still includes the LDO unit, and the LDO unit is located between the V + of input and the controller for provide operating voltage by input V + to the controller.

9. The charging cord as claimed in claim 1, wherein: the output that is equipped with data access pin and/or the output that does not have data access pin in the charging wire includes a plurality ofly.

10. A charging system, characterized by: the charging wire and the charging head as claimed in any of claims 1 to 9, wherein the input end of the charging wire is inserted into the charging head, and the output end of the charging wire is electrically connected with the electronic device and supplies power.

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