Charging wire, power adapter, charging system and electronic equipment

Abstract

The utility model relates to the technical field of electronic circuits, in particular to a charging wire, a power adapter, a charging system and electronic equipment. The method comprises the steps that the input end of a first charging branch is connected with a voltage bus interface and an enabling interface of a charging line, and the output end of the first charging branch is connected with an output interface of the charging line; the input end of the second charging branch is respectively connected with the voltage bus interface and the enabling interface, and the output end of the second charging branch is connected with the output interface; the first charging branch and the second charging branch are both conducted at a high level or a low level, the first charging branch is used for fast charging, and the second charging branch is used for non-fast charging; and the inverter is arranged between the input end of the first charging branch and the enabling interface or between the input end of the second charging branch and the enabling interface, and is used for controlling connection and disconnection of the first charging branch or the second charging branch. The charging line avoids the problem that equipment cannot normally start a fast charging mode.

Description

Technical Field

[0001] This application relates to the field of electronic circuit technology, and further to a charging cable, power adapter, charging system and electronic device. Background Technology

[0002] In the current field of electronic device charging, USB charging cables are widely used for charging various devices. Traditional USB charging cables typically only have four connectors (or pins), and their main function is to meet basic charging needs. However, this design has certain limitations. Whether most power adapters support fast charging is often unclear. If a charging cable only supports normal charging, and the user mistakenly uses a power adapter that supports fast charging, the device will not be able to activate fast charging mode correctly. Utility Model Content

[0003] To address the aforementioned technical issues, this application provides a charging cable, a power adapter, a charging system, and an electronic device, thereby preventing the device from properly enabling fast charging mode when the charging cable only supports normal charging and the user mistakenly uses a power adapter that supports fast charging.

[0004] In a first aspect, this application provides a charging cable, comprising: a first charging branch, the input terminal of which is connected to a voltage bus interface and an enable interface of the charging cable respectively, and the output terminal of which is connected to an output interface of the charging cable; a second charging branch, the input terminal of which is connected to a voltage bus interface and an enable interface respectively, and the output terminal of which is connected to an output interface; both the first charging branch and the second charging branch are turned on at a high level or a low level, the first charging branch being used for fast charging when it is turned on, and the second charging branch being used for non-fast charging when it is turned on; and an inverter, which is disposed between the input terminal of the first charging branch and the enable interface, or between the input terminal of the second charging branch and the enable interface, for controlling the on and off states of the first charging branch or the second charging branch.

[0005] The above charging cable integrates two charging branches (a first charging branch and a second charging branch) into a single cable, used for fast charging and non-fast charging respectively. The input of the first charging branch connects to the voltage bus interface and the enable interface of the charging cable, while its output connects to the output interface. Similarly, the input of the second charging branch connects to the voltage bus interface and the enable interface, and its output also connects to the output interface. Both branches are activated by either a high or low voltage level. When the first charging branch is activated, it is used for fast charging; when the second charging branch is activated, it is used for non-fast charging. Furthermore, by placing an inverter between the input of either the first or second charging branch and the enable interface, the activation and deactivation of the two branches can be flexibly controlled, thus enabling switching between fast and non-fast charging. This avoids the problem of the device failing to activate fast charging mode when the charging cable only supports normal charging and the user mistakenly uses a power adapter that supports fast charging. It also avoids the problem of the charging device failing to provide protection during a short circuit when the charging cable supports fast charging but a normal power adapter is used, resulting in charging heat loss.

[0006] In one implementation, when the inverter is positioned between the input terminal of the second charging branch and the enable interface, and both the first and second charging branches are low-level conducting, if the enable interface inputs a low level, the first charging branch is turned on and the second charging branch is turned off; when the inverter is positioned between the input terminal of the second charging branch and the enable interface, and both the first and second charging branches are low-level conducting, if the enable interface inputs a high level, the first charging branch is turned off and the second charging branch is turned on.

[0007] In one implementation, when the inverter is positioned between the input terminal of the first charging branch and the enable interface, and both the first and second charging branches are low-level conducting, if the enable interface inputs a low level, the first charging branch is cut off and the second charging branch is turned on; when the inverter is positioned between the input terminal of the first charging branch and the enable interface, and both the first and second charging branches are low-level conducting, if the enable interface inputs a high level, the first charging branch is turned on and the second charging branch is cut off.

[0008] In one implementation, when the inverter is positioned between the input terminal of the second charging branch and the enable interface, and both the first and second charging branches are high-level conducting, if the enable interface inputs a low level, the first charging branch is cut off and the second charging branch is turned on; when the inverter is positioned between the input terminal of the second charging branch and the enable interface, and both the first and second charging branches are high-level conducting, if the enable interface inputs a high level, the first charging branch is turned on and the second charging branch is cut off.

[0009] In one implementation, when the inverter is positioned between the input terminal of the first charging branch and the enable interface, and both the first and second charging branches are high-level conducting, if the enable interface inputs a low level, the first charging branch is turned on and the second charging branch is turned off; when the inverter is positioned between the input terminal of the first charging branch and the enable interface, and both the first and second charging branches are high-level conducting, if the enable interface inputs a high level, the first charging branch is turned off and the second charging branch is turned on.

[0010] The above charging cable, by incorporating an inverter, achieves flexible control of two charging branches based on its position and the conduction conditions (high or low level) of the charging branches. Specifically, when the inverter is positioned between the input terminal and the enable interface of the second charging branch, if both the first and second charging branches are low-level conducting, a low-level input to the enable interface turns on the first charging branch and turns off the second charging branch; conversely, a high-level input to the enable interface turns off the first charging branch and turns on the second charging branch. Similarly, when the inverter is positioned between the input terminal and the enable interface of the first charging branch, if both the first and second charging branches are low-level conducting, a low-level input to the enable interface turns off the first charging branch and turns on the second charging branch; conversely, a high-level input to the enable interface turns on the first charging branch and turns off the second charging branch. Likewise, when both the first and second charging branches are high-level conducting, precise control of the two charging branches can also be achieved through the inverter. This design not only allows for flexible switching of charging modes according to different charging needs, but also effectively provides the reliability and compatibility of the charging cable.

[0011] In one implementation, both the first charging branch and the second charging branch are equipped with overcurrent protection circuits and overvoltage protection circuits.

[0012] In one implementation, the charging current of the first charging branch is any value between 1.5 amps and 4.5 amps, or any value between 0.5 amps and 2.5 amps.

[0013] Secondly, this application also provides a power adapter, which is connected to the positive data signal line interface and the negative data signal line interface of any of the above-implemented charging cables, and the charging IC at one end of the power adapter is also connected to the enable interface of the charging cable, for use with the charging cable to realize fast charging or non-fast charging.

[0014] Thirdly, this application also provides a charging system, including a charging cable and a power adapter implemented as described above.

[0015] Fourthly, this application also provides an electronic device including a charging cable implemented in any of the above.

[0016] Compared with the prior art, the present invention has at least one of the following beneficial effects:

[0017] 1. By integrating two charging branches (a first charging branch and a second charging branch) into a single charging cable, one is used for fast charging and the other for non-fast charging. The input of the first charging branch is connected to the voltage bus interface and the enable interface of the charging cable, and the output is connected to the output interface of the charging cable. Similarly, the input of the second charging branch is connected to the voltage bus interface and the enable interface, and the output is also connected to the output interface. Both branches are activated at either a high or low level. When the first charging branch is activated, it is used for fast charging; when the second charging branch is activated, it is used for non-fast charging. Furthermore, by setting an inverter between the input of the first or second charging branch and the enable interface, the activation and deactivation of the two branches can be flexibly controlled, thereby achieving the switching between fast charging and non-fast charging. This avoids the problem that when the charging cable only supports normal charging, but the user mistakenly uses a power adapter that supports fast charging, the device will not be able to activate fast charging mode normally. It also avoids the problem that when the charging cable supports fast charging but a normal power adapter is used, the charging device will not be able to provide protection in the event of a short circuit, resulting in charging heat loss.

[0018] 2. By incorporating an inverter in the charging cable and adjusting its position and the conduction conditions (high or low level) of the charging branches, flexible control of the two charging branches is achieved. Specifically, when the inverter is positioned between the input of the second charging branch and the enable interface, if both the first and second charging branches are low-level conducting, a low-level input to the enable interface turns on the first charging branch and turns off the second charging branch; conversely, a high-level input to the enable interface turns off the first charging branch and turns on the second charging branch. Similarly, when the inverter is positioned between the input of the first charging branch and the enable interface, if both the first and second charging branches are low-level conducting, a low-level input to the enable interface turns off the first charging branch and turns on the second charging branch; conversely, a high-level input to the enable interface turns on the first charging branch and turns off the second charging branch. Likewise, when both the first and second charging branches are high-level conducting, precise control of the two charging branches can also be achieved through the inverter. This design not only allows for flexible switching of charging modes according to different charging needs, but also effectively provides the reliability and compatibility of the charging cable. Attached Figure Description

[0019] The preferred embodiments will be described below in a clear and easy-to-understand manner, in conjunction with the accompanying drawings, to further explain the above-mentioned characteristics, technical features, advantages and implementation methods of this utility model.

[0020] Figure 1 A circuit diagram of a charging cable provided in an embodiment of this application is shown;

[0021] Figure 2 A circuit diagram of an inverter provided in an embodiment of this application is shown;

[0022] Figure 3 A circuit diagram of an overcurrent and overvoltage protection circuit provided in an embodiment of this application is shown.

[0023] Explanation of icon numbers:

[0024] 11-Input, 12-First charging branch, 13-Second charging branch, 14-Inverter, 15-Output, 16-Protection chip A, 17-Protection chip B. Detailed Implementation

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0026] To keep the drawings concise, each figure only schematically shows the parts relevant to the utility model, and these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some figures, only one of the components with the same structure or function is schematically depicted, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one."

[0027] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0028] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0030] It should be noted that the above embodiments can be freely combined as needed. The above are merely preferred embodiments of this utility model. It should be pointed out that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

[0031] A USB charging cable is a cable used to connect electronic devices (such as mobile phones, tablets, laptops, etc.) to a power adapter or computer USB interface to enable device charging and data transfer. USB charging cables can be categorized into fast charging cables and non-fast charging cables (or ordinary charging cables). These can be two separate cables, one for fast charging and one for non-fast charging (or ordinary charging); or they can be multi-channel charging cables that integrate fast and non-fast charging via a power conversion module. This multi-channel charging cable includes multiple output terminals, at least one for fast charging and at least one for non-fast charging. In this embodiment, a first charging branch for fast charging and a second charging branch for non-fast charging are integrated onto a single charging cable, and the switching between fast and non-fast charging is achieved through cooperation with an inverter.

[0032] The following explanation is based on the accompanying diagram:

[0033] Reference Appendix Figure 1 The diagram illustrates a circuit diagram of a charging cable provided in an embodiment of this application. Figure 1 As shown, the charging cable includes: a first charging branch 12, a second charging branch 13, an inverter 14 (or phase inverter), a voltage bus interface VBUS, a positive data signal line interface DP, a negative data signal line interface DM, a ground interface GND, and an enable interface EN. The positive data signal line interface DP and the negative data signal line interface DM are used to connect external devices, including but not limited to power adapters, host computers, mobile terminals, and other devices that can provide power or transmit signals through the charging cable. The ground interface GND is used for grounding. The input terminals of the first charging branch 12 are connected to the voltage bus interface VBUS and the enable interface EN of the charging cable, respectively. The output terminal of the first charging branch 12 is connected to the output interface of the charging cable (see attached diagram). Figure 1The first charging branch 12 and the second charging branch 13 are connected to the voltage bus interface VBUS and the enable interface EN, respectively. The output of the second charging branch 13 is connected to the output interface. The enable interface EN is also connected to the charging IC at one end of the power adapter. Both the first charging branch 12 and the second charging branch 13 are turned on at a high level or a low level. When the first charging branch 12 is turned on, it is used for fast charging. When the second charging branch 13 is turned on, it is used for non-fast charging. The inverter 14 is set between the input of the first charging branch 12 and the enable interface EN, or between the input of the second charging branch 13 and the enable interface EN, to control the on and off of the first charging branch 12 or the second charging branch 13.

[0034] Inverter 14 is used to invert the level state of the input signal. For example, when the enable interface EN input is high, inverter 14 can convert the high level to a low level; when the enable interface EN input is low, inverter 14 can convert the low level to a high level. Inverter 14 can be configured between the input terminal of the first charging branch 12 and the enable interface EN (this configuration method is attached). Figure 1 (not shown), or located between the input of the second charging branch 13 and the enable interface EN.

[0035] The first charging branch 12 and the second charging branch 13 can be configured to conduct at either a high or low level, depending on user needs. For example, the first charging branch 12 and the second charging branch 13 can be configured to conduct when the enable interface EN input is high, or when the enable interface EN input is low. Simultaneously, because the inverter 14 can invert the level of the enable interface EN input, the first charging branch 12 and the second charging branch 13 will not be simultaneously turned on or off, thus enabling switching between fast charging and non-fast charging.

[0036] This embodiment integrates two charging branches (a first charging branch and a second charging branch) into a single charging cable, used for fast charging and non-fast charging respectively. The input of the first charging branch is connected to the voltage bus interface and the enable interface of the charging cable, and its output is connected to the output interface of the charging cable. Similarly, the input of the second charging branch is connected to the voltage bus interface and the enable interface, and its output is also connected to the output interface. Both branches are activated at either a high or low level. When the first charging branch is activated, it is used for fast charging; when the second charging branch is activated, it is used for non-fast charging. Furthermore, by setting an inverter between the input of the first or second charging branch and the enable interface, the activation and deactivation of the two branches can be flexibly controlled, thereby achieving the switching between fast charging and non-fast charging. This avoids the problem where the device cannot properly enable fast charging mode when the charging cable only supports normal charging and the user mistakenly uses a power adapter that supports fast charging. It also avoids the problem where the charging device cannot function properly in the event of a short circuit, resulting in heat loss during charging, due to the charging cable supporting fast charging being used with a normal power adapter.

[0037] In one embodiment of this application, when the inverter is located between the input terminal of the second charging branch and the enable interface, and both the first charging branch and the second charging branch are on at a low level, if the enable interface inputs a low level, the first charging branch is on and the second charging branch is off; when the inverter is located between the input terminal of the second charging branch and the enable interface, and both the first charging branch and the second charging branch are on at a low level, if the enable interface inputs a high level, the first charging branch is off and the second charging branch is on.

[0038] The inverter is located between the input terminal of the second charging branch and the enable interface. When both the first and second charging branches are on at a low level, if the power adapter inputs a low level through the enable interface, the first charging branch is turned on. The inverter can reverse the low level and convert it to a high level, thereby turning off the second charging branch. The charging current then enters the external device through the first charging branch for fast charging.

[0039] Conversely, if the power adapter inputs a high level through the enable interface, the first charging branch is cut off. The inverter can reverse this high level, converting it to a low level, thereby turning on the second charging branch. The charging current then enters the external device through the second charging branch for non-fast charging.

[0040] In one embodiment of this application, when the inverter is disposed between the input terminal of the first charging branch and the enable interface, and both the first charging branch and the second charging branch are on at a low level, if the enable interface inputs a low level, the first charging branch is off and the second charging branch is on; when the inverter is disposed between the input terminal of the first charging branch and the enable interface, and both the first charging branch and the second charging branch are on at a low level, if the enable interface inputs a high level, the first charging branch is on and the second charging branch is off.

[0041] The inverter is located between the input terminal of the first charging branch and the enable interface. When both the first and second charging branches are on at a low level, if the power adapter inputs a low level through the enable interface, the second charging branch is turned on. The inverter can reverse the low level and convert it to a high level, thereby turning off the first charging branch. The charging current then enters the external device through the second charging branch for non-fast charging.

[0042] Conversely, if the power adapter inputs a high level through the enable interface, the second charging branch is cut off. The inverter can reverse this high level, converting it to a low level, thereby turning on the first charging branch. The charging current then enters the external device through the first charging branch for fast charging.

[0043] In one embodiment of this application, when the inverter is disposed between the input terminal of the second charging branch and the enable interface, and both the first charging branch and the second charging branch are high-level conducting, if the enable interface inputs a low level, the first charging branch is cut off and the second charging branch is conducted; when the inverter is disposed between the input terminal of the second charging branch and the enable interface, and both the first charging branch and the second charging branch are high-level conducting, if the enable interface inputs a high level, the first charging branch is conducted and the second charging branch is cut off.

[0044] The inverter is located between the input terminal of the second charging branch and the enable interface. When both the first and second charging branches are on at a high level, if the power adapter inputs a low level through the enable interface, the first charging branch is cut off. The inverter can reverse the low level and convert it to a high level, thereby turning on the second charging branch. The charging current enters the external device through the second charging branch for non-fast charging.

[0045] Conversely, if the power adapter inputs a high level through the enable interface, the first charging branch is turned on. The inverter can reverse this high level, converting it to a low level, thereby turning off the second charging branch. The charging current then enters the external device through the first charging branch for fast charging.

[0046] In one embodiment of this application, when the inverter is located between the input terminal of the first charging branch and the enable interface, and both the first charging branch and the second charging branch are high-level conducting, if the enable interface inputs a low level, the first charging branch is conducting and the second charging branch is turning off; when the inverter is located between the input terminal of the first charging branch and the enable interface, and both the first charging branch and the second charging branch are high-level conducting, if the enable interface inputs a high level, the first charging branch is turning off and the second charging branch is conducting.

[0047] The inverter is located between the input terminal of the first charging branch and the enable interface. When both the first and second charging branches are on at a high level, if the power adapter inputs a low level through the enable interface, the second charging branch is cut off. The inverter can reverse the low level and convert it to a high level, thereby turning on the first charging branch. The charging current enters the external device through the first charging branch for fast charging.

[0048] Conversely, if the power adapter inputs a high level through the enable interface, the second charging branch is turned on. The inverter can reverse this high level, converting it to a low level, thereby turning off the first charging branch. The charging current then enters the external device through the second charging branch for non-fast charging.

[0049] This embodiment of the application achieves flexible control of two charging branches by incorporating an inverter in the charging cable and adjusting its position and the conduction conditions (high or low level) of the charging branches. Specifically, when the inverter is positioned between the input terminal and the enable interface of the second charging branch, if both the first and second charging branches are conducting at a low level, a low-level input to the enable interface turns on the first charging branch and turns off the second charging branch; conversely, a high-level input to the enable interface turns off the first charging branch and turns on the second charging branch. Similarly, when the inverter is positioned between the input terminal and the enable interface of the first charging branch, if both the first and second charging branches are conducting at a low level, a low-level input to the enable interface turns off the first charging branch and turns on the second charging branch; conversely, a high-level input to the enable interface turns on the first charging branch and turns off the second charging branch. Likewise, when both the first and second charging branches are conducting at a high level, precise control of the two charging branches can also be achieved through the inverter. This design not only allows for flexible switching of charging modes according to different charging needs, but also effectively provides the reliability and compatibility of the charging cable.

[0050] Reference Appendix Figure 2 The diagram illustrates a circuit diagram of an inverter provided in an embodiment of this application. Figure 2As shown, inverter 14 is connected to the voltage bus interface, enable interface and ground interface respectively, and is used to invert the level signal EN1 output by the enable interface, so as to output a level signal EN2 that is opposite to the level state of level signal EN1.

[0051] In one embodiment of this application, both the first charging branch and the second charging branch are provided with an overcurrent protection circuit (or overcurrent protection module OCP, see attached). Figure 1 (not shown in the image) and overvoltage protection circuit (or overvoltage protection module OVP).

[0052] When the first charging branch is turned on, overvoltage protection is provided by the overvoltage protection circuit on the first charging branch, and overcurrent protection is provided by the external power adapter. When the second charging branch is turned on, overcurrent and overvoltage protection are provided by the overvoltage protection circuit and the overcurrent protection circuit on the second charging branch.

[0053] Reference Appendix Figure 3 The diagram illustrates a circuit diagram of an overcurrent and overvoltage protection circuit provided in an embodiment of this application. Figure 3 As shown, it includes protection chip A and protection chip B. Both protection chip A and protection chip B have overcurrent and overvoltage protection functions. The overcurrent protection threshold of protection chip A can be set between 0.5 amps and 2 amps, and the overcurrent protection threshold of protection chip B can be set between 1.5 amps and 4.5 amps. Protection chip A can be installed in either the first charging branch or the second charging branch, and protection chip B can also be installed in either the first charging branch or the second charging branch. The Vout-output of protection chip A and protection chip B is used to provide charging interface to external electronic devices.

[0054] In one embodiment of this application, the charging current of the first charging branch is any value between 1.5 amps and 4.5 amps, and the charging current of the second charging branch is any value between 0.5 amps and 2.5 amps.

[0055] This application embodiment also provides a power adapter, which is connected to the positive data signal line interface and the negative data signal line interface of the charging cable in any of the above embodiments. The charging IC at one end of the power adapter is also connected to the enable interface of the charging cable, for use with the charging cable to realize fast charging or non-fast charging.

[0056] This application also provides a charging system, including the charging cable and power adapter of any of the above embodiments.

[0057] This application also provides an electronic device, including the charging cable of any of the above embodiments.

[0058] The charging system and electronic device using the charging cable in the embodiments of this application are basically similar to those in the charging cable embodiments, so the description is relatively simple. For relevant details, please refer to the description of the charging cable embodiments.

[0059] It should be noted that the above embodiments can be freely combined as needed. The above are merely preferred embodiments of this utility model. It should be pointed out that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A charging cable, characterized in that, include: The first charging branch has its input terminals connected to the voltage bus interface and the enable interface of the charging cable, respectively, and its output terminal connected to the output interface of the charging cable. The second charging branch has its input terminals connected to the voltage bus interface and the enable interface, respectively, and its output terminal connected to the output interface. Both the first charging branch and the second charging branch are turned on at a high level or a low level. When the first charging branch is turned on, the first charging branch is used for fast charging. When the second charging branch is turned on, the second charging branch is used for non-fast charging. An inverter is disposed between the input terminal of the first charging branch and the enable interface, or between the input terminal of the second charging branch and the enable interface, for controlling the conduction and cutoff of the first charging branch or the second charging branch.

2. The charging cable according to claim 1, characterized in that, When the inverter is located between the input terminal of the second charging branch and the enable interface, and both the first charging branch and the second charging branch are on at a low level, if the enable interface inputs a low level, the first charging branch is on and the second charging branch is off. When the inverter is positioned between the input terminal of the second charging branch and the enable interface, and both the first charging branch and the second charging branch are on at a low level, if the enable interface inputs a high level, the first charging branch is turned off, and the second charging branch is turned on.

3. The charging cable according to claim 1, characterized in that, When the inverter is located between the input terminal of the first charging branch and the enable interface, and both the first charging branch and the second charging branch are on at a low level, if the enable interface inputs a low level, the first charging branch is off and the second charging branch is on. When the inverter is located between the input terminal of the first charging branch and the enable interface, and both the first charging branch and the second charging branch are on at a low level, if the enable interface inputs a high level, the first charging branch is on and the second charging branch is off.

4. The charging cable according to claim 1, characterized in that, When the inverter is located between the input terminal of the second charging branch and the enable interface, and both the first charging branch and the second charging branch are on at a high level, if the enable interface inputs a low level, the first charging branch is off and the second charging branch is on. When the inverter is positioned between the input terminal of the second charging branch and the enable interface, and both the first charging branch and the second charging branch are on at a high level, if the enable interface inputs a high level, the first charging branch is on and the second charging branch is off.

5. The charging cable according to claim 1, characterized in that, When the inverter is located between the input terminal of the first charging branch and the enable interface, and both the first charging branch and the second charging branch are on at a high level, if the enable interface inputs a low level, the first charging branch is on and the second charging branch is off. When the inverter is located between the input terminal of the first charging branch and the enable interface, and both the first charging branch and the second charging branch are on at a high level, if the enable interface inputs a high level, the first charging branch is off and the second charging branch is on.

6. The charging cable according to any one of claims 1-5, characterized in that, Both the first charging branch and the second charging branch are equipped with overcurrent protection circuits and overvoltage protection circuits.

7. The charging cable according to any one of claims 1-5, characterized in that, The charging current of the first charging branch is any value between 1.5 amps and 4.5 amps, and the charging current of the second charging branch is any value between 0.5 amps and 2.5 amps.

8. A power adapter, characterized in that, The power adapter is connected to the positive data signal line interface and the negative data signal line interface of the charging cable according to any one of claims 1-7, and the charging IC at one end of the power adapter is also connected to the enable interface of the charging cable for use with the charging cable to realize fast charging or non-fast charging.

9. A charging system, characterized in that, It includes the charging cable according to any one of claims 1-7 and the power adapter according to claim 8.

10. An electronic device, characterized in that, Includes the charging cable as described in any one of claims 1-7.

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