CN112825401B - Charging cable, charger, charging control method and charging device - Google Patents

Abstract

The disclosure relates to the technical field of chargers, in particular to a charging line, a charger, a charging control method and a charging device. A charging cord, comprising: the first connecting end is connected with the charger; the second connecting end is connected with the equipment to be charged; the first line charges the equipment to be charged which supports the first charging protocol type; the second line charges the equipment to be charged which supports the second charging protocol type; the switching unit switches the first line connection or the second line connection. The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects: can judge the charging protocol type that supports automatically according to the interface type of the equipment of waiting to charge through a charging wire to accord with the charging circuit of the protocol type of charging according to various charging protocol types automatic switch-over, need not the user and prepare the charging wire respectively to the different equipment of waiting to charge, convenience of customers uses, and portable saves space.

Description

Charging cable, charger, charging control method and charging device

technical field

The present disclosure relates to the technical field of chargers, in particular to a charging cable, a charger, a charging control method and a charging device.

Background technique

Various electrical appliances using special rechargeable batteries need to be connected to the mains through a charger to charge the batteries. Chargers have different charging protocols according to different types of electrical appliances. Therefore, the charger needs to be used with electrical appliances with corresponding charging protocols. For example, Digital Communication Protocol (DCP, Digital Communication Protocol), Quick Charge Protocol (QC, Quick Charge) and Power Delivery Protocol (PD, Power Delivery), etc.

The more types of electrical appliances that need to be charged, the more chargers are needed. The chargers with various charging protocols are not compatible with each other. Therefore, many users need to be equipped with corresponding chargers for various electrical appliances, especially When the user travels, he needs to carry various chargers with him, which takes up luggage space and is inconvenient to use.

Contents of the invention

In order to overcome the problems existing in the related art, the present disclosure provides a charging cable, a charger, a charging control method and a charging device.

According to an aspect of an embodiment of the present disclosure, a charging cable is provided, including a first connection end, a second connection end, a first line, a second line, and a switching unit, wherein: the first connection end is used to connect to a charger; The second connection end is used to connect the device to be charged; the first line is used to charge the device to be charged that supports the first charging protocol type; the second line is used to charge the device to be charged that supports the second charging protocol type Charging; switching unit, used to switch the first connection end and the second connection end through the first line according to the charging protocol type supported by the device to be charged, or switch the first connection end and the second connection end through the second line connect.

In one embodiment, both the first connection end and the second connection end include a first data line pin, a second data line pin, a ground line pin, a configuration channel CC pin and a power supply VBUS line pin; the first The line includes: the first data line, the second data line, the ground line and the CC line; the second line includes the second data line, the ground line, the CC line and the VBUS line; the first data line is electrically connected to the first data line at the first connection end line pin and the first data line pin of the second connection end; the second data line is electrically connected to the second data line pin of the first connection end and the second data line pin of the second connection end; the ground wire is electrically connected to the first connection The ground pin of the first connection end and the ground wire pin of the second connection end; the CC line is electrically connected to the CC pin of the first connection end and the CC pin of the second connection end; the VBUS line is electrically connected to the VBUS line pin of the first connection end and the second connection end Connect to the VBUS pin.

In one embodiment, the switching unit includes a first switch and a pull-up resistor; the first switch includes a common contact, a first contact, and a second contact, and the first switch is connected between the first contact and the second contact. switch between the second contacts; the pull-up resistor is electrically connected between the first contact and the VBUS line; the common contact is connected to the first data line pin of the first connection end connected, the second contact is connected with the first data line pin of the second connection end, and the first contact is connected with the pull-up resistor.

In one embodiment, the second circuit further includes a second switch, and the second switch is used to control the connection or disconnection of the VBUS line.

In one embodiment, the first connection end is a USB interface of type A port; the second connection end is a USB interface of type C port.

In one embodiment, the charging cable further includes a control unit; the control unit is arranged at the first connection end, and is used for detecting the charging protocol type supported by the device to be charged, and for controlling the switching unit and /or switching of the second switch.

According to another aspect of the embodiments of the present disclosure, there is provided a charger, which is used in conjunction with the charging line according to the first aspect or any one of the embodiments of the first aspect; including a method for detecting the charging protocol type supported by the device to be charged The control unit; the control unit is used to control the switching unit of the charging line and/or the switching of the second switch according to the detection result of the charging protocol type.

According to another aspect of the embodiments of the present disclosure, there is provided a charging control method, which is applied to the charging line in the above first aspect or any one of the embodiments of the first aspect, or applied to the above first aspect or the first aspect Scenarios where the charging cable of any one of the embodiments is used in conjunction with the charger of the second aspect above include:

When the charging cable is connected to the charger and the device to be charged, detect the charging protocol type supported by the device to be charged;

When the charging protocol type is the first charging protocol type, switch to the first line to electrically connect the first connection end and the second connection end through the switching unit, and charge the device to be charged;

When the charging protocol type is the second charging protocol type, switch to the second line to electrically connect the first connection end and the second connection end through the switching unit, and charge the device to be charged.

In one embodiment, determining the charging protocol type supported by the device to be charged includes:

When it is determined that no loop is formed between the first data line pin of the first connection end, the switch, the VBUS line, and the VBUS line pin of the first connection end, it is determined that the device to be charged supports the first charging protocol type;

When it is determined that a loop is formed between the first data line pin of the first connection end, the switch, the VBUS line, and the VBUS line pin of the first connection end, it is determined that the device to be charged supports the second charging protocol type.

In one embodiment, switching the first line to electrically connect the first connection terminal and the second connection terminal through the switching unit includes: controlling the first switch to disconnect the connection with the pull-up resistor, and controlling the connection between the first switch and the second connection terminal. A data line and the second connection end are connected to the pins of the first data line.

In one embodiment, the method further includes: when the switching unit switches to the first line to electrically connect the first connection end and the second connection end, turning off the second switch.

In one embodiment, the charging protocol type is a combination of any two of the following: power transmission protocol, fast charging protocol, and digital communication protocol.

According to another aspect of the embodiments of the present disclosure, there is provided a charging device. The charging device includes: a detection unit, configured to detect the charging protocol type supported by the device to be charged when the charging cable is connected to the charger and connected to the device to be charged; The unit is used to switch to the first line to electrically connect the first connection terminal and the second connection terminal through the switching unit when the charging protocol type is the first charging protocol type, and to charge the device to be charged; When the type is the second charging protocol type, switch to the second line to electrically connect the first connection end and the second connection end through the switching unit, and charge the device to be charged.

According to another aspect of the embodiments of the present disclosure, a non-transitory computer-readable storage medium is provided. The non-transitory computer-readable storage medium stores computer-executable instructions. When the computer-executable instructions are executed by a processor, the above-mentioned The third aspect or the method of any one embodiment of the third aspect.

The technical solutions provided by the embodiments of the present disclosure may include the following beneficial effects:

For devices to be charged with different interface types, there is no need to replace different charging cables that meet the charging protocol type corresponding to the interface type. Under the condition of one charging cable, the charging protocol type can be automatically judged according to the interface type of the device to be charged, and determined by The switching unit inside the charging line automatically switches the charging circuit that meets the current charging protocol type. For users, there is no need to prepare various charging lines for different devices to be charged, which improves the user experience to a certain extent.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure.

Description of drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description serve to explain the principles of the invention.

FIG. 1 is a schematic diagram illustrating a charging line according to an exemplary embodiment of the present disclosure.

FIG. 2 is a circuit diagram illustrating a charging line according to an exemplary embodiment of the present disclosure.

FIG. 3 is a schematic diagram illustrating a charging line circuit applied to a mobile phone according to an exemplary embodiment of the present disclosure.

FIG. 4 is a flowchart illustrating a charging method according to an exemplary embodiment of the present disclosure.

FIG. 5 is a structural block diagram illustrating a charging device according to an exemplary embodiment of the present disclosure.

FIG. 6 is a block diagram showing an apparatus according to a sixth exemplary embodiment of the present disclosure.

Detailed ways

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with aspects of the invention as recited in the appended claims.

FIG. 1 is a schematic diagram illustrating the principle of a charger according to an exemplary embodiment of the present disclosure. FIG. 2 is a circuit diagram illustrating a charger according to an exemplary embodiment of the present disclosure.

According to an aspect of the embodiments of the present disclosure, referring to FIG. 1 and FIG. 2 , a charging cable 100 is provided, including a first connection end 110 , a second connection end 120 , a first line, a second line and a switching unit 140 . Wherein: the first connecting end 110 is used for connecting the charger. The second connection terminal 120 is used for connecting the device to be charged. The first line is used to charge the device to be charged that supports the first charging protocol type. The second line is used to charge the device to be charged that supports the second charging protocol type. The switching unit 140 is used to switch the connection between the first connection terminal 110 and the second connection terminal 120 through the first line, or switch the connection between the first connection terminal 110 and the second connection terminal 120 through the first connection according to the charging protocol type supported by the device to be charged. Two line connection.

The first connection end 110 and the second connection end 120 are electrically connected through the first line and the second line, and the first line and the second line determine the device to be charged through the chip 111 arranged at the first connection end 110, for example, a mobile phone The supported charging protocol type is switched between the first line and the second line through the switching unit 140 according to different protocol types. A charger can automatically determine the charging protocol type according to the interface type of the connected charged device, and automatically switch the charging circuit that conforms to the charging protocol according to various charging protocols, without the need for the user to prepare chargers for different charged devices separately.

In one embodiment, the first connection end and the second connection end each include a first data line pin, a second data line pin, a ground line pin, a CC pin and a VBUS line pin.

The first lines include: a first data line 133 , a second data line 132 , a ground line 131 and a CC line 134 . The first data line 133 is electrically connected to the first data line pin of the first connection end 110 and the first data line pin of the second connection end 120 . The second data line 132 is electrically connected to the second data line pin of the first connection end 110 and the second data line pin of the second connection end 120 . The ground wire 131 is electrically connected to the ground wire pin of the first connection end 110 and the ground wire pin of the second connection end 120 . The CC line 134 is electrically connected to the CC pin of the first connection end 110 and the CC pin of the second connection end 20 .

The second lines include a second data line 132 , a ground line 131 , a CC line 134 and a VBUS line 135 . The VBUS line 135 is electrically connected to the VBUS line pin of the first connection end 110 and the VBUS pin of the second connection end 120 .

When the device to be charged supports the first type of charging protocol for charging, the four lines of the first line of the charging line provided by the present disclosure, that is, the first data line 133, the second data line 132, the ground line 131 and CC The line 134 communicates with the first connection end 110 and the second connection end 120 to charge the device to be charged using the first charging protocol. When the device to be charged supports the second charging protocol type for charging, on the basis of the above-mentioned first line, through the switching unit built in the charging line, switch the VBUS line 135 to replace the first data line 133 in the first line, The device to be charged is charged with the second charging protocol corresponding to the second line.

FIG. 3 is a schematic diagram illustrating a charging line circuit applied to a mobile phone according to an exemplary embodiment of the present disclosure.

The charging line with the above structure sets multiple circuits conforming to multiple charging protocols in the same charging line. Taking the PD protocol and the QC protocol as an example, refer to Figure 3. For example, in a mobile phone charger, for compliance with the QC protocol and DCP The protocol charger can realize charging through the first data line 133 (D+ line), the second data line 132 (D- line), the ground line 131 (GND line) and the configuration channel line 134 (CC line). For example, early USB chargers had four pins connected to the D+, D-, GND, and CC lines.

For a charger conforming to the PD protocol, charging can be realized through the second data line 132 (D-line), ground line 131 (GND line), configuration channel line 134 and VBUS line 135 (power line). Therefore, a USB charger that conforms to the PD protocol also has four pins, which are connected to the D-, GND, CC and VBUS lines respectively.

Certainly, the embodiments of the present application are not limited to the PD protocol and the QC protocol, and the solutions proposed in the present application are applicable to the PD protocol and the DCP protocol.

In one embodiment, the switching unit 140 includes a first switch 141 and a pull-up resistor 142 . The first switch 141 includes a common contact, a first contact and a second contact, and the first switch 141 switches between the first contact and the second contact; the pull-up resistor 142 is electrically connected to the first contact and VBUS Between lines 135; the common contact communicates with the first data line pin of the first connection end 110, the second contact communicates with the first data line pin of the second connection end 120, and the first contact communicates with the pull-up resistor 142 connected.

The switching of the circuit is realized through the first switch 141 , and the voltage level is increased through the electrical connection with the VBUS line 135 through the pull-up resistor 142 . The pull-up resistor 142 can clamp uncertain signals at a high level, and is an output current channel for an open-collector output circuit. The information configuration of the PD charging protocol is performed on the VBUS line 135 through the pull-up resistor 142 . In this embodiment, the value of the pull-up resistor used is 56KΩ.

The first data line pin, the first switch 141 , the first data line 133 and the first data line pin of the second connection terminal 120 are sequentially connected in series to form a first circuit, that is, a charging circuit conforming to the QC protocol.

The first data line pin of the first connection end 110, the first switch 141, the pull-up resistor 142, the VBUS line 135, and the VBUS line pin of the first connection end 110 are sequentially connected in series to form a second line, that is, conforming to the PD protocol charging circuit.

In one embodiment, the second circuit further includes a second switch 112 for controlling the connection or disconnection of the VBUS line 135 .

When the common contact of the first switch 141 is disconnected from the first contact and communicated with the second contact, and the CC line 134 between the first connection end 110 and the second connection end 120 is in a connection state, the second One line is connected, and the device to be charged that conforms to the QC protocol can be charged. The interface of the charging device should have four pins, namely, the ground pin, the first data line pin, the second data line pin and CC The charging interface of the line pin, so there is no current between the VBUS line 135 of the charging line and the charging device, and the connection of the VBUS line 135 will not affect the charging of the charging device. However, in order to ensure that no accidents occur during the charging process, resulting in accidents occurs, the control unit 111 of the first connection terminal 110 controls the second switch 112 to be turned off, and the VBUS line 135 is completely disconnected. In one embodiment, the voltage on the VBUS line 135 is 5V.

The VBUS line is the power line for the HOST/HUB to supply power to the USB device, that is, the +5V of the normal USB device.

When the common contact of the first switch 141 is connected to the first contact and disconnected from the second contact, and the VBUS line 135 between the first connection end 110 and the second connection end 120 is in the connection state, the second The two lines are connected, and the device to be charged that conforms to the PD protocol can be charged.

In one embodiment, the first connection end 110 is a USB interface of type A port; the second connection end 120 is a USB interface of type C port.

As mentioned above, the first connection end 110 is a USB interface with an A-type port having 5 pins. In this embodiment, the second connection end 120 is a Type-C USB interface.

In one embodiment, the charging line 100 further includes a control unit 111; the control unit 111 is disposed at the first connection end 110, and is used to detect the charging protocol type supported by the device to be charged, and to control the switching unit 140 and/or the second Switching of the second switch 112 .

Of course, the control unit 111 can also be set inside the charger used with the charging line in addition to being set inside the charging line. For the scene where the control unit 111 is set inside the charger instead of the charging line, the embodiment of the present disclosure also A charger is provided, including a control unit 111 for detecting the charging protocol type supported by the device to be charged, the control unit 111 is mainly used to control the switching unit 140 and/or the charging line 100 according to the detection result of the charging protocol type Or switching of the second switch 112 .

FIG. 4 is a flowchart illustrating a charging method according to an exemplary embodiment of the present disclosure.

According to another aspect of the embodiments of the present disclosure, there is provided a charging control method, referring to FIG. 4 , which is applied to the aforementioned charging line, or the scene where the aforementioned charging line is used in conjunction with the aforementioned charger, including:

In step S100, when the charging cable is connected to the charger and connected to the device to be charged, the charging protocol type supported by the device to be charged is detected.

In step S200, when the charging protocol type is the first charging protocol type, switch to the first line to electrically connect the first connection end and the second connection end through the switching unit, and charge the device to be charged.

In step S300, when the charging protocol type is the second charging protocol type, switch to the second line to electrically connect the first connection end and the second connection end through the switching unit, and charge the device to be charged.

In one embodiment, determining the charging protocol type supported by the device to be charged includes:

When it is determined that no loop is formed between the first data line pin of the first connection end, the switch, the VBUS line, and the VBUS line pin of the first connection end, it is determined that the device to be charged supports the first charging protocol type;

When it is determined that a loop is formed between the first data line pin of the first connection end, the switch, the VBUS line, and the VBUS line pin of the first connection end, it is determined that the device to be charged supports the second charging protocol type.

When the first connection end of the charging line provided by the present disclosure is connected to the charger, and the second connection end is connected to the device to be charged, for example, when the device to be charged is a mobile phone, the control unit of the first connection end determines the connection to the second connection end. The type of charging protocol supported by the mobile phone. When the charging cable is inserted into the charger, there is a current source inside the charger. The control unit judges that the mobile phone supports the PD protocol. The first switch and the current source inside the first connection end form a loop. The switch is connected to a 56KΩ pull-up resistor. The CC pin of the first connection terminal issues commands to communicate with the second connection terminal to implement the PD protocol.

In this embodiment, the default state is that the first switch is connected to the pull-up resistor, that is, in the default state, the charger of the present disclosure is suitable for a charger conforming to the PD protocol, and is connected to the second line.

In one embodiment, switching the first line to electrically connect the first connection terminal and the second connection terminal through the switching unit includes: controlling the first switch to disconnect the connection with the pull-up resistor, and controlling the connection between the first switch and the second connection terminal. A data line and the second connection end are connected to the pins of the first data line.

When the charging line is inserted into the charger, the control unit judges that the mobile phone supports the QC protocol or the DCP protocol, the control unit disconnects the second switch, and the first switch disconnects the connection with the pull-up resistor, and connects the D+ terminal of the first connection end and The D+ terminal at the second connection end is connected to the D+ line. The mobile phone at the second connection end is charged through the first line.

In one embodiment, the method further includes: when the switching unit switches to the first line to electrically connect the first connection end and the second connection end, turning off the second switch.

The first line is connected, and the charging device that conforms to the QC protocol can be charged. The interface of the charging device should have four pins, namely, the ground pin, the first data line pin, the second data line pin and CC The charging interface of the line pin, so there is no current between the VBUS line of the charging line and the charging device, and the connection of the VBUS line will not affect the charging of the charging device. However, in order to ensure that there will be no accidents during the charging process, resulting in accidents, The second switch is controlled to be turned off by the control unit at the first connection end, and the VBUS line is completely disconnected.

In one embodiment, the charging protocol type is a combination of any two of the following: power transmission protocol, fast charging protocol, and digital communication protocol.

Currently commonly used charging protocols are power transmission protocol (PD protocol) and fast charging protocol (QC protocol), and the latest technology is PD protocol. Therefore, as above, the default state of the charging line of the present disclosure is the state of the second line connected. In addition, many users still keep devices that conform to the older charging technology, that is, Digital Communication Protocol (DCP). The circuit of the device conforming to the DCP protocol is the same as that of the device using the QC protocol. Therefore, the first charging technology can be used. The line can be charged.

As above, the default state of the charging line of the present disclosure is the state of the second line connected to the PD protocol. Therefore, the priority of the judgment strategy of the control unit is that the PD protocol is first, the QC protocol is second, and the last is the DCP protocol, effectively ensuring charging reliability.

FIG. 5 is a structural block diagram illustrating a charging device according to an exemplary embodiment of the present disclosure.

According to another aspect of the embodiments of the present disclosure, a charging device 200 is provided. Referring to FIG. 5 , the charging device includes: a detection unit 210, configured to detect the charging device supported by the device to be charged when the charging cable is connected to the charger and connected to the device to be charged. The charging protocol type; the execution unit 220 is used to switch to the first line to electrically connect the first connection terminal and the second connection terminal through the switching unit when the charging protocol type is the first charging protocol type, and charge the device to be charged; And, when the charging protocol type is the second charging protocol type, switch to the second line to electrically connect the first connection end and the second connection end through the switching unit, and charge the device to be charged.

According to another aspect of the embodiments of the present disclosure, a non-transitory computer-readable storage medium is provided. The non-transitory computer-readable storage medium stores computer-executable instructions. When the computer-executable instructions are executed by a processor, the above-mentioned The third aspect or the method of any one embodiment of the third aspect.

Fig. 6 is a block diagram showing an apparatus 600 for a method for projecting a screen of a terminal and an apparatus for projecting a screen of a terminal according to a sixth exemplary embodiment of the present disclosure. For example, the apparatus 600 may be provided as a server. Referring to FIG. 6 , apparatus 600 includes processing component 622 , which further includes one or more processors, and a memory resource represented by memory 632 for storing instructions executable by processing component 622 , such as application programs. The application program stored in memory 632 may include one or more modules each corresponding to a set of instructions. In addition, the processing component 622 is configured to execute instructions, so as to execute the above-mentioned method for projecting a screen of a terminal.

Device 600 may also include a power component 626 configured to perform power management of device 600 , a wired or wireless network interface 650 configured to connect device 600 to a network, and an input-output (I/O) interface 658 . The apparatus 600 may operate based on an operating system stored in the memory 632, such as Windows Server™, Mac OS X™, Unix™, Linux™, FreeBSD™ or the like.

Other embodiments of the invention will be readily apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any modification, use or adaptation of the present invention, these modifications, uses or adaptations follow the general principles of the present invention and include common knowledge or conventional technical means in the technical field not disclosed in this disclosure . The specification and examples are to be considered exemplary only, with a true scope and spirit of the invention being indicated by the following claims.

It should be understood that the present invention is not limited to the precise constructions which have been described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.

Claims (8)

1. The utility model provides a charging wire, its characterized in that includes first link, second link, first circuit, second circuit and switching unit, wherein:

the first connecting end is used for connecting a charger;

the second connecting end is used for connecting the equipment to be charged;

the first circuit comprises a first data line, a second data line, a ground line and a CC circuit and is used for charging the equipment to be charged which supports the first charging protocol type;

the second line comprises the second data line, the ground line, the CC line and the VBUS line and is used for charging equipment to be charged which supports a second charging protocol type;

a switching unit including a first switch and a pull-up resistor, configured to switch the first connection end to be connected to the second connection end through the first line or switch the first connection end to be connected to the second connection end through the second line according to a charging protocol type supported by the device to be charged,

the first connecting end and the second connecting end respectively comprise a first data line pin, a second data line pin, a ground wire pin, a configuration channel CC pin and a power supply VBUS wire pin;

the first switch includes a common contact, a first contact, and a second contact, the first switch switching between the first contact and the second contact;

the pull-up resistor is electrically connected between the first contact and the VBUS line;

the common contact is communicated with a first data line pin of the first connecting end, the second contact is communicated with a first data line pin of the second connecting end, and the first contact is communicated with the pull-up resistor;

the first data line is electrically connected with a first data line pin of the first connecting end and a first data line pin of the second connecting end;

the second data line is electrically connected with a second data line pin of the first connecting end and a second data line pin of the second connecting end;

the ground wire is electrically connected with the ground wire pin of the first connecting end and the ground wire pin of the second connecting end;

the CC circuit is electrically connected with the CC pin of the first connecting end and the CC pin of the second connecting end;

the VBUS wire is electrically connected with the VBUS wire pin of the first connecting end and the VBUS pin of the second connecting end;

the second line also comprises a second switch which is used for controlling the connection or disconnection of the VBUS line.

2. The charging cord according to claim 1,

the first connecting end is a USB interface of an A-shaped port;

the second connecting end is a USB interface of a C-shaped port.

3. The charging cord according to claim 1 or 2, characterized in that the charging cord further comprises a control unit;

the control unit is arranged at the first connection end and used for detecting the type of the charging protocol supported by the equipment to be charged and controlling the switching of the switching unit and/or the second switch.

4. A charger used with the charging cord according to any one of claims 1 to 3, comprising a control unit for detecting the type of charging protocol supported by the device to be charged;

the control unit is used for controlling the switching of the switching unit and/or the second switch of the charging line according to the detection result of the type of the charging protocol.

5. A charging control method is characterized in that the charging wire is applied to any one of claims 1 to 3, or the charging wire of any one of claims 1 to 3 is used together with the charger of claim 4, and comprises the following steps:

when the charging wire is connected with a charger and is connected with equipment to be charged, and a loop is not formed among a first data line pin of a first connecting end, a first switch, a VBUS line and a VBUS line pin of the first connecting end, judging that the equipment to be charged supports a first charging protocol type; when a loop is formed among a first data line pin of the first connection end, the first switch, the VBUS line and a VBUS line pin of the first connection end, determining that the equipment to be charged supports a second charging protocol type;

when the charging protocol type is a first charging protocol type, switching to a first line to electrically connect the first connection end and the second connection end through the switching unit, controlling the first switch to be disconnected from the pull-up resistor, controlling the first switch to be connected with the first data line and the first data line pin of the second connection end, and charging the device to be charged;

when the charging protocol type is a second charging protocol type, the switching unit is switched to a second line to be electrically connected with the first connecting end and the second connecting end, the second switch is disconnected, and the equipment to be charged is charged.

6. The charge control method according to claim 5, wherein the charging protocol type is any two of the following combinations:

power transmission protocol, fast charging protocol, digital communication protocol.

7. A charging device, characterized in that, when applied to the charging wire of any one of claims 1-3, the charging wire comprises a first connection end, a second connection end, a first line, a second line and a switching unit, the charging device comprises:

the detection unit is used for judging that the equipment to be charged supports a first charging protocol type when a first data line pin of a first connection end, a first switch, a VBUS line and a first connection end VBUS line pin do not form a loop when the charging line is connected with a charger and connected with the equipment to be charged; when a loop is formed among a first data line pin of the first connection end, the first switch, the VBUS line and a VBUS line pin of the first connection end, the device to be charged is judged to support a second charging protocol type;

the execution unit is used for switching to a first circuit to be electrically connected with the first connecting end and the second connecting end through the switching unit when the charging protocol type is a first charging protocol type, controlling the first switch to be disconnected with the pull-up resistor, controlling the first switch to be connected with the first data line and the second connecting end and the first data line pin, and charging the equipment to be charged; and the number of the first and second groups is,

and when the charging protocol type is a second charging protocol type, the switching unit is used for switching to a second line to electrically connect the first connecting end and the second connecting end, disconnecting the second switch and charging the equipment to be charged.

8. A non-transitory computer-readable storage medium storing computer-executable instructions that, when executed by a processor, perform the charge control method of any one of claims 5 to 6.

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