Charging control method, charging control circuit, charging circuit, chip and equipment

Abstract

The invention relates to the technical field of power supplies, in particular to a charging control method, a charging control circuit, a charging circuit, a chip and equipment, the charging control method is applied to charging equipment with a display unit, and the charging control method comprises the following steps: acquiring charging parameters according to a preset charging protocol; outputting electric power according to the charging parameters, and obtaining current charging information of the electronic equipment based on the preset charging protocol so as to control a display unit to display the current charging information; the current charging information is obtained through the preset charging protocol, the current charging information of the electronic equipment can be displayed in the charging process, when the screen of the mobile terminal is turned off, a user can directly know the current charging information through display, the screen of the mobile terminal does not need to be turned on again, tedious operation is avoided, and user experience is improved.

Description

Technical Field

[0001] This application relates to the field of power supply technology, and in particular to a charging control method, a charging control circuit, a charging circuit, a chip, and a device. Background Technology

[0002] With the development of mobile communication technology, the use of mobile terminals has become increasingly widespread and popular. The types of mobile terminals available to individual users are also increasing, including mobile phones, laptops, tablets, smartwatches, and wireless headphones. Users often need to use the same charger to charge multiple mobile terminals of different brands or product types. Currently, users can only see the current charging information through the mobile terminal itself. When the screen of the mobile terminal is off, users have to turn the screen back on to check the charging information, which is cumbersome and detrimental to the user experience. Summary of the Invention

[0003] In view of the above problems, embodiments of this application provide a charging control method, a charging control circuit, a charging circuit, a chip, and a device to solve the technical problem that the current charging information of the mobile terminal cannot be displayed according to the charging protocol with the best matching degree.

[0004] In a first aspect, embodiments of this application provide a charging control method, the method being applied to a charging device having a display unit, the method comprising: Obtain charging parameters according to the preset charging protocol; Power is output according to the charging parameters, the current charging information of the electronic device is obtained based on the preset charging protocol, and the display unit is controlled to display the current charging information.

[0005] Secondly, embodiments of this application provide a charging control method applied to an electronic device, comprising: Send charging parameters to the charging device according to the preset charging protocol; The system sends current charging information to the charging device according to a preset charging protocol.

[0006] Thirdly, embodiments of this application provide a charging control circuit, including: A charging management unit connected to the first interface, the charging management unit being used to acquire charging parameters according to at least one preset charging protocol; A charging control unit is connected to the charging management unit. The charging control unit is used to output power according to the charging parameters and obtain the current charging information of the electronic device through the charging management unit, so as to control the display unit to display the current charging information.

[0007] Fourthly, embodiments of this application provide a charging control chip, including the charging control circuit described above.

[0008] Fifthly, embodiments of this application provide a charging circuit, including: A first interface, the first interface including a first pin, a second pin and a third pin; The aforementioned charging control chip; A load switch unit is connected between the third pin and the battery unit. The load switch unit is connected to the charging control chip. The load switch unit is used to control the connection or disconnection of the charging path according to the first control signal sent by the charging control chip. A DC-DC converter unit is connected between the load switch unit and the battery unit. The DC-DC converter unit is connected to the charging control chip. The DC-DC converter unit is used to control the output voltage of the battery unit according to a second control signal sent by the charging control chip. The display unit is connected to the charging control chip and is used to display the current charging information of the electronic device according to the third control signal sent by the charging control chip.

[0009] Sixthly, embodiments of this application provide a charging device for implementing the above-described charging control method; Or, including the aforementioned charging control chip; Alternatively, it may include the charging circuit described above.

[0010] Seventhly, embodiments of this application provide an electronic device for implementing the above-described charging control method.

[0011] The charging control method, charging control circuit, charging circuit, chip, and device provided in this application embodiment are applied to a charging device with a display unit. The charging control method includes the following steps: obtaining charging parameters according to a preset charging protocol; outputting power according to the charging parameters; obtaining the current charging information of the electronic device based on the preset charging protocol; and controlling the display unit to display the current charging information. By obtaining the current charging information through the preset charging protocol, the current charging information of the electronic device can be displayed during the charging process. When the screen of the mobile terminal is off, the user can directly understand the current charging information through the display without having to turn the screen of the mobile terminal back on, avoiding cumbersome operations and improving the user experience.

[0012] These or other aspects of this application will become more apparent in the following description of the embodiments. Attached Figure Description

[0013] Figure 1 The diagram illustrates an application scenario of the charging control circuit provided in an embodiment of this application.

[0014] Figure 2 A schematic diagram of the charging control circuit provided in an embodiment of this application is shown.

[0015] Figure 3 A schematic diagram of the charging control circuit provided in an embodiment of this application is shown.

[0016] Figure 4 A schematic diagram of the charging control circuit provided in an embodiment of this application is shown.

[0017] Figure 5 A schematic diagram of the structure of the charging control chip provided in an embodiment of this application is shown.

[0018] Figure 6 A schematic diagram of the charging circuit provided in an embodiment of this application is shown.

[0019] Figure 7 A schematic diagram of the structure of the first interface and the load switch unit in the charging circuit provided in the embodiment of this application is shown.

[0020] Figure 8 A schematic diagram of the DC-DC conversion unit in the charging circuit provided in this application embodiment is shown.

[0021] Figure 9 A schematic diagram of the structure of an electronic device provided in an embodiment of this application is shown.

[0022] Figure 10 A schematic flowchart of the charging control method provided in an embodiment of this application is shown.

[0023] Figure 11 A schematic flowchart of the charging control method provided in an embodiment of this application is shown. Detailed Implementation

[0024] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0025] To enable those skilled in the art to better understand the solutions of this application, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0026] In the embodiments of this application, it should be noted that, in this document, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0027] Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0028] In the description of the embodiments of this application, the words "example" or "for example" are used to indicate exemplification, illustration, or description. Any embodiment or design described as "example" or "for example" in the embodiments of this application is not to be construed as being more preferred or having more advantages than another embodiment or design. The use of the words "example" or "for example" is intended to present relative concepts in a clear manner.

[0029] Furthermore, in the embodiments of this application, "multiple" refers to two or more. Therefore, in the embodiments of this application, "multiple" can also be understood as "at least two". "At least one" can be understood as one or more, such as one, two, or more. For example, including at least one means including one, two, or more, and is not limited to which ones are included. For example, including at least one of A, B, and C, then it could include A, B, C, A and B, A and C, B and C, or A and B and C.

[0030] It should be noted that in the embodiments of this application, "and / or" describes the relationship between associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. In addition, the character " / ", unless otherwise specified, generally indicates that the associated objects before and after it are in an "or" relationship.

[0031] It should be noted that in the embodiments of this application, "connection" can be understood as electrical connection. The connection between two electrical components can be a direct or indirect connection between the two electrical components. For example, the connection between A and B can be a direct connection between A and B, or an indirect connection between A and B through one or more other electrical components.

[0032] In the embodiments of this application, the first terminal / first end of each transistor is one of the source and the drain, and the second terminal / second end of each transistor is the other of the source and the drain. Since the source and drain of a transistor can be structurally symmetrical, they can be structurally indistinguishable. That is, the first terminal / first end and the second terminal / second end of the transistor in the embodiments of this application can be structurally indistinguishable. For example, when the transistor is a P-type transistor, the first terminal / first end is the source, and the second terminal / second end is the drain; for example, when the transistor is an N-type transistor, the first terminal / first end is the drain, and the second terminal / second end is the source.

[0033] The charging control circuit 100 provided in this application can be applied to... Figure 1 The portable power device 200 shown includes a Type-C interface 201, and a charging control circuit 100 is connected to the Type-C interface 201. The charging control circuit 100 is used to control the charging of the electronic device 300 connected to the Type-C interface 201.

[0034] One embodiment of this application provides a charging control circuit 100, please refer to [link / reference]. Figure 2 As shown, the charging control circuit 100 of this embodiment includes at least one charging management unit 10 and a charging control unit 13.

[0035] The charging management unit 10 is connected to the first interface 20. The charging management unit 10 is configured with one or more preset charging protocols. Before and during charging, the charging management unit 10 communicates with the electronic device 300 based on at least one preset charging protocol to obtain charging-related information from the electronic device 300. The charging management unit 10 can be used to obtain charging parameters according to at least one preset charging protocol. For example, the charging parameters may include at least one of a charging voltage range, a charging current range, a charging power range, and a charging temperature range.

[0036] The charging control unit 13 is used to output power according to the charging parameters obtained by the charging management unit 10. For example, the charging control unit 13 can control the output voltage, output current or output power according to the charging parameters.

[0037] During the charging process, the charging control unit 13 acquires real-time charging parameters of the electronic device 300 through the charging management unit 10, and outputs power according to the real-time charging parameters. For example, the charging control unit 13 can adjust the output voltage, output current, or output power in real time according to the real-time charging parameters.

[0038] The charging control unit 13 is also used to obtain the current charging information of the electronic device 300 through the charging management unit 10 during the charging process, so as to control the display unit to display the current charging information. For example, the current charging information includes the current battery capacity. When the screen of the electronic device 300 is off, the user can understand the charging progress by viewing the current battery capacity displayed on the display unit without needing to turn on the screen of the electronic device 300 while charging. For example, the current charging information includes at least several of the following: current battery capacity, manufacturer information of the electronic device, number of battery cells, battery design capacity, battery saturation capacity from the last charge, current charge / discharge state of the battery, battery temperature information, battery effective state, minimum power, maximum power, operating power, and the mode of the electronic device. The user can comprehensively understand the status of the battery of the electronic device 300 through the above information.

[0039] The charging control circuit 100 of this embodiment can be applied to a charging device, which is equipped with a display unit, such as a display screen; the charging device can be, for example, a power bank (portable charger), or a charging adapter (charging head). The electronic device 300 can be a mobile terminal, such as a mobile phone, tablet computer, laptop computer, or wearable device.

[0040] In this embodiment, the current charging information is obtained through a preset charging protocol. During the charging process, the current charging information of the electronic device can be displayed. When the screen of the mobile terminal is off, the user can directly understand the current charging information through the display without having to turn the screen of the mobile terminal back on, thus avoiding cumbersome operations and improving the user experience.

[0041] As one implementation method, due to the large number of mobile terminal manufacturers and the rapid pace of mobile terminal product updates, the fast charging protocols that can be adapted in power supplies are usually limited, making it difficult for power supplies to be compatible with the charging protocols of mobile terminals of different brands, models, or product types.

[0042] Please see Figure 3 As shown, there are two charging management units, namely the first charging management unit 11 and the second charging management unit 12.

[0043] The first charging management unit 11 is connected to the first pin 21 of the first interface 20. The first charging management unit 11 is configured with at least one first charging protocol. The at least one first charging protocol is a protocol that communicates via the first pin 21. Different first charging protocols may correspond to different versions of the first type of charging communication protocol. For example, the first charging protocol may be the PD (Power Delivery, Charging Management) protocol, that is, the first type of charging communication protocol may be the PD protocol. Multiple first charging protocols may be PD2.0, PD3.0, and PD3.1, respectively.

[0044] Before and during charging, the first charging management unit 11 communicates with the electronic device 300 based on at least one first charging protocol to obtain charging-related information from the electronic device 300. The first charging management unit 11 can be used to obtain first charging parameters according to at least one first charging protocol. For example, the first charging parameters may include at least one of a charging voltage range, a charging current range, a charging power range, and a charging temperature range.

[0045] The second charging management unit 12 is connected to the second pin 22 of the first interface 20. The second charging management unit 12 is configured with at least one second charging protocol. The at least one second charging protocol is a protocol that communicates via the second pin 22. Different second charging protocols can correspond to different types of charging communication protocols and different versions of the same type of charging communication protocol. For example, different second charging protocols may include a second type of charging communication protocol or different versions of the second type of charging communication protocol, a third type of charging communication protocol or different versions of the third type of charging communication protocol, ..., an Nth type of charging communication protocol or different versions of the Nth type of charging communication protocol. The second charging protocol can be one of the following: Qualcomm QC (Quick Charge), UFCS (Universal Fast Charging Specification), Huawei FCP (Fast Charge Protocol), Huawei SCP (Super Charge Protocol), or Samsung AFC (Adaptive Fast Charging). Specifically, the second type of charging communication protocol can be Qualcomm QC (QC2.0, QC3.0, QC4.0, or QC5.0), the third type can be Huawei FCP, the fourth type can be Huawei SCP, the fifth type can be Samsung AFC, and the sixth type can be UFCS.

[0046] Before and during charging, the second charging management unit 12 communicates with the electronic device 300 based on at least one second charging protocol to obtain charging-related information from the electronic device 300. The second charging management unit 12 can be used to obtain second charging parameters according to at least one second charging protocol. For example, the second charging parameters may include at least one of a charging voltage range, a charging current range, a charging power range, and a charging temperature range.

[0047] The charging control unit 13 is connected to the first charging management unit 11 and the second charging management unit 12. After obtaining the first charging parameters, the first charging management unit 11 sends the first charging parameters to the charging control unit 13; or, after obtaining the second charging parameters, the second charging management unit 12 sends the second charging parameters to the charging control unit 13.

[0048] The charging control unit 13 is used to output power according to the first charging parameters obtained by the first charging management unit 11 or the second charging parameters obtained by the second charging management unit 12. That is, the charging control unit 13 outputs power according to the first charging parameters when charging using the first charging protocol, and outputs power according to the second charging parameters when charging using the second charging protocol. For example, the charging control unit 13 can control the output voltage, output current or output power according to the first charging parameters or the second charging parameters.

[0049] During the charging process, the charging control unit 13 obtains real-time first charging parameters of the electronic device 300 through the first charging management unit 11 or real-time second charging parameters of the electronic device 300 through the second charging management unit 12, so as to output power according to the real-time first charging parameters or real-time second charging parameters. For example, the charging control unit 13 can adjust the output voltage, output current or output power in real time according to the real-time first charging parameters or real-time second charging parameters.

[0050] The charging control unit 13 is also used to acquire the current charging information of the electronic device 300 through the first charging management unit 11 or the second charging management unit 12 during the charging process. When the current charging information is successfully acquired, the display unit is controlled to display the current charging information. For example, the current charging information includes the current battery capacity. When the screen of the electronic device 300 is off, the user can understand the charging progress by viewing the current battery capacity displayed on the display unit without needing to turn on the screen of the electronic device 300 while charging. For example, the current charging information includes at least several of the following: current battery capacity, manufacturer information of the electronic device, number of battery cells, battery design capacity, battery saturation capacity from the last charge, current charge / discharge state of the battery, battery temperature information, battery effective state, minimum power, maximum power, operating power, and the mode of the electronic device. The user can comprehensively understand the status of the battery of the electronic device 300 through the above information.

[0051] In this embodiment, the first charging management unit adapts to at least one first charging protocol communicated via the first pin, and the second charging management unit adapts to at least one second charging protocol communicated via the second pin, thereby improving the compatibility of different charging protocols. During the charging process, the current charging information of the electronic device can be displayed according to the charging protocol with the best matching degree.

[0052] In one implementation, the first interface 20 can be a Type-C interface; the first pin 21 can be a CC (Connection Configuration) pin, such as CC1 or CC2; the second pin 22 can be a data transmission pin, such as DM (Data Minus) or DP (Data Plus) pin.

[0053] In one implementation, the first charging management unit 11 is used to send a first charging parameter acquisition instruction to the electronic device 300 via the first pin 21 according to the first charging protocol when it detects that the electronic device 300 is connected to the charging control circuit 100 through the first pin 21.

[0054] If the electronic device 300 supports the first charging protocol, when the electronic device 300 is connected to the first interface 20, it connects to the first pin 21. The first charging management unit 11 communicates with the electronic device 300 through the first pin 21 to negotiate and determine the first charging protocol to be used. According to the negotiated first charging protocol, the unit sends a first charging parameter acquisition command to the electronic device 300 via the first pin 21. Upon receiving the first charging parameter acquisition command, the electronic device 300 acquires the corresponding first charging parameters according to the command and sends the first charging parameters to the first charging management unit 11 according to the negotiated first charging protocol.

[0055] In some embodiments, the first charging management unit 11 is further configured to send a current charging information acquisition instruction to the electronic device 300 via the first pin 21 when charging is performed using the first charging protocol.

[0056] The first charging management unit 11 communicates with the electronic device 300 via the first pin 21 to obtain current charging information in real time. The first charging management unit 11 can send a current charging information acquisition command every first preset time interval so that the charging control unit 13 can continuously update the current charging information. Upon receiving the current charging information acquisition command, the electronic device 300 obtains the corresponding current charging information according to the command and sends the current charging information to the first charging management unit 11 according to the negotiated first charging protocol. The first charging management unit 11 then sends the received current charging information to the charging control unit 13, which controls the display unit to display the current charging information.

[0057] In some implementations, the first charging protocol is the PD protocol, and the current charging information includes charging capability information. For example, the charging capability information may include at least a variety of the following: manufacturer information of the electronic device, number of battery cells, mode of the electronic device, minimum power of the electronic device, operating power of the electronic device, and maximum power of the electronic device.

[0058] The first charging management unit 11 is also configured to, when charging is performed using the first charging protocol, send a charging capability information acquisition instruction to the electronic device via the first pin according to the first charging protocol; and receive charging capability information sent by the electronic device in response to the charging capability information acquisition instruction.

[0059] For example, the charging capability information acquisition instruction is either Get_Sink_Cap_Extended Message or Get_Source_Cap_Extended Message. When it identifies itself as a source, the first charging management unit 11 sends Get_Sink_Cap_Extended Message to obtain the charging capability information of the electronic device. When it identifies itself as a sink, the first charging management unit 11 sends Get_Source_Cap_Extended Message to obtain the charging capability information of the electronic device.

[0060] For example, the charging capability information acquisition instruction is a custom VDM (Vendor Defined Message) extension command, and the charging capability information acquisition instruction is a VDM message carrying a charging capability information identifier. For example, the charging capability information identifier can be defined as a5.

[0061] In some implementations, the first charging protocol is the PD protocol, and the current charging information includes battery capacity information. For example, the battery capacity information may include the battery design capacity and the battery's saturated capacity from the last charge.

[0062] The first charging management unit 11 is also configured to, when charging using the first charging protocol, send a battery capability information acquisition instruction to the electronic device via the first pin according to the first charging protocol; and receive battery capability information sent by the electronic device in response to the battery capability information acquisition instruction.

[0063] For example, the battery capability information acquisition instruction is Get_Battery_Cap Message; or, the battery capability information acquisition instruction is a VDM message carrying a battery capability information identifier.

[0064] In some implementations, the first charging protocol is the PD protocol, and the current charging information includes battery status information. For example, the battery status information may include at least one of the current battery capacity, the current battery charge / discharge state, and the battery effective state.

[0065] The first charging management unit 11 is also configured to, when charging using the first charging protocol, send a battery status information acquisition instruction to the electronic device via the first pin according to the first charging protocol; and receive battery status information sent by the electronic device in response to the battery status information acquisition instruction.

[0066] For example, the battery status information retrieval instruction is Get_Battery_Status Message; or, the battery status information retrieval instruction is a VDM message carrying a battery status information identifier.

[0067] In some implementations, the first charging protocol is the PD protocol, and the current charging information includes temperature information. For example, the temperature information may be battery temperature information or electronic device temperature information.

[0068] The first charging management unit 11 is also configured to, when charging using the first charging protocol, send a temperature information acquisition command to the electronic device via the first pin according to the first charging protocol; and receive temperature information sent by the electronic device in response to the temperature information acquisition command.

[0069] For example, the temperature information acquisition instruction is Get_Status Message; or, the temperature information acquisition instruction is a VDM message carrying a temperature information identifier.

[0070] In one implementation, the second charging management unit 12 is further configured to, when detecting that the electronic device 300 is connected to the charging control circuit 100 through the second pin 22, obtain a second charging protocol that matches the electronic device 300 from at least one preset second charging protocol, and send a second charging parameter acquisition instruction to the electronic device 300 via the second pin 22 according to the second charging protocol that matches the electronic device 300.

[0071] If the electronic device 300 does not support the first charging protocol, when the electronic device 300 is connected to the first interface 20, it connects to the second pin 22. The second charging management unit 12 communicates with the electronic device 300 through the second pin 22 to negotiate and determine the second charging protocol to be used. According to the negotiated second charging protocol, it sends a second charging parameter acquisition command to the electronic device 300 via the second pin 22. Upon receiving the second charging parameter acquisition command, the electronic device 300 acquires the corresponding second charging parameters according to the command and sends the second charging parameters to the second charging management unit 12 according to the negotiated second charging protocol.

[0072] Among them, a second charging protocol can be matched according to the device production information of electronic device 300. The device production information may include manufacturer information or both manufacturer information and electronic device product type. For example, if electronic device 300 is a Huawei mobile phone, Huawei SCP or Huawei FCP will be matched first; if electronic device 300 is a Xiaomi mobile phone, Qualcomm QC protocol will be matched first.

[0073] In some embodiments, the second charging management unit 12 is also used to send a current charging information acquisition instruction to the electronic device 300 via the second pin 22 when charging is performed using the second charging protocol.

[0074] The second charging management unit 12 communicates with the electronic device 300 via the second pin 22 to obtain current charging information in real time. The second charging management unit 12 can send a current charging information acquisition command every first preset time interval so that the charging control unit 13 can continuously update the current charging information. When the electronic device 300 receives the current charging information acquisition command, it acquires the corresponding current charging information according to the command and sends the current charging information to the second charging management unit 12 according to the negotiated second charging protocol.

[0075] As one implementation method, please refer to Figure 4 As shown, the charging control circuit 100 also includes a data transmission management unit 14 connected to the second pin 22. The data transmission management unit 14 is used to transmit data according to the first data transmission protocol.

[0076] The data transmission management unit 14 can be configured with at least one first data transmission protocol. Path switching can be performed by configuring a first switching switch 15. The first switching switch 15 is connected to the second pin 22, the second charging management unit 12, and the data transmission management unit 14. The second pin 22 forms a first communication path with the second charging management unit 12, and a second communication path with the data transmission management unit 14. The first switching switch 15 is used to switch between the first and second communication paths. When switching to the first communication path, the first communication path is connected and the second communication path is disconnected; when switching to the second communication path, the first communication path is disconnected and the second communication path is connected. An embodiment of this application provides a charging control chip 30; please refer to [link to relevant documentation]. Figure 5 As shown, the charging control chip 30 includes the charging control circuit 100 described above.

[0077] The chip can be, but is not limited to, a SOC (System on Chip) chip or a SIP (System in Package) chip.

[0078] One embodiment of this application provides a charging circuit 40, please refer to [link / reference]. Figure 6 As shown, the charging circuit 40 includes: a first interface 20, a charging control chip 30, a load switch unit 41, a DC-DC conversion unit 42, and a display unit 43.

[0079] The first interface 20 includes a first pin 21, a second pin 22, and a third pin 23. The third pin 23 is used for outputting power. For a description of the first pin 21 and the second pin 22, please refer to the above embodiments and implementation methods.

[0080] A load switch unit 41 is connected between the third pin 23 and the battery unit 50. The load switch unit 41 is also connected to the charging control chip 30. The load switch unit 41 controls the connection or disconnection of the charging path according to a first control signal sent by the charging control chip 30. When the load switch unit 41 is on, the charging path is on; when the load switch unit 41 is off, the charging path is off. Specifically, the load switch unit 41 is connected to the charging control unit 13 of the charging control chip 30, and the charging control unit 13 sends the first control signal.

[0081] A DC-DC converter 42 is connected between the load switch unit 41 and the battery unit 50. The DC-DC converter 42 is also connected to the charging control chip 30. The DC-DC converter 42 controls the output voltage of the battery unit 50 according to a second control signal sent by the charging control chip 30. Specifically, the DC-DC converter 42 is connected to the charging control unit 13 of the charging control chip 30. The charging control unit 13 sends a second control signal, which is generated by the charging control unit 13 based on either the first or second charging parameters.

[0082] The display unit 43 is connected to the charging control chip 30. The display unit 43 is used to display the current charging information of the electronic device 300 according to the third control signal sent by the charging control chip 30. Specifically, the display unit 43 is connected to the charging control unit 13 of the charging control chip 30. The charging control unit 13 sends a third control signal, which is generated by the charging control unit 13 according to the current charging information.

[0083] In this embodiment, the current charging information is obtained through a preset charging protocol. During the charging process, the current charging information of the electronic device can be displayed. When the screen of the mobile terminal is off, the user can directly understand the current charging information through the display without having to turn the screen of the mobile terminal back on, thus avoiding cumbersome operations and improving the user experience.

[0084] In one implementation, the charging control chip 30 includes a first charging management unit 11 and a second charging management unit 12.

[0085] In this embodiment, the first charging management unit adapts to at least one first charging protocol communicated via the first pin, and the second charging management unit adapts to at least one second charging protocol communicated via the second pin, thereby improving the compatibility of different charging protocols. During the charging process, the power output to the electronic device can be controlled according to the charging protocol with the best matching degree, and the current charging information of the electronic device can also be displayed according to the charging protocol with the best matching degree.

[0086] As one implementation method, please refer to Figure 7 As shown, the load switch unit 41 includes a first switch unit Q1. The first end of the first switch unit Q1 is connected to the third pin 23, the second end of the first switch unit Q1 is connected to the DC-DC conversion unit 42, and the control terminal of the first switch unit Q1 is connected to the charging control chip 30. The charging control unit 13 of the charging control chip 30 sends a first control signal to the control terminal of the first switch unit Q1, and the first switch unit Q1 is turned on or off according to the first control signal.

[0087] In some implementations, the first switching unit Q1 can be a transistor unit; for example, the first switching unit Q1 can be a PMOS transistor.

[0088] In some embodiments, the load switch unit 41 further includes a first resistor unit 411, which includes at least two resistors connected in series. A first terminal of the first resistor unit 411 is connected to a second terminal of the first switch unit Q1, and the second terminal of the first resistor unit 411 is connected to the charging control chip 30. A first connection node 412 of the first resistor unit 411 is connected to the control terminal of the first switch unit Q1, and the first connection node 412 is a connection node between any two adjacent resistors. For example, in... Figure 7 As shown, the first resistor unit 411 includes a first resistor R6 and a second resistor R11 connected in series, and the first connection node 412 is the connection node between the first resistor R6 and the second resistor R11.

[0089] In some implementations, please refer to [the relevant documentation]. Figure 7 As shown, the charging circuit 40 also includes a second resistor unit 44 connected to the third pin 23. The second resistor unit 44 includes at least two resistors connected in series. The first end of the second resistor unit 44 is connected to the third pin 23, the second end of the second resistor unit 44 is grounded, and the second connection node 441 of the second resistor unit 44 is connected to the charging control chip 30. The second connection node 441 is the connection node between any two adjacent resistors. For example, in... Figure 7 As shown, the second resistor unit 44 includes a third resistor R7 and a fourth resistor R12 connected in series. The second connection node 441 is the connection node between the third resistor R7 and the fourth resistor R12. The second resistor unit 44 sends a voltage feedback signal to the charging control chip 30 through the second connection node 441.

[0090] As one implementation method, please refer to Figure 8As shown, the DC-DC conversion unit 42 includes a voltage output terminal 42a connected to the third pin 23, a first controller 421, a second switch unit Q2, a third switch unit Q3, a fourth switch unit Q4, a fifth switch unit Q5, and a first inductor unit L1. The first terminal of the second switch unit Q2 is connected to the voltage output terminal 42a through the first regulating resistor unit 422. The second terminal of the second switch unit Q2 is connected to the first terminal of the third switch unit Q3. The second terminal of the third switch unit Q3 is grounded. The first terminal of the fourth switch unit Q4 is connected to the battery unit 50 through the second regulating resistor unit 423. The fourth switch unit Q5... The first terminal of the first inductor unit L1 is connected to the first terminal of the fifth switch unit Q5, and the second terminal of the fifth switch unit Q5 is grounded. The first terminal of the first inductor unit L1 is connected to the connection node of the second switch unit Q2 and the third switch unit Q3. The second terminal of the first inductor unit L1 is connected to the connection node of the fourth switch unit Q4 and the fifth switch unit Q5. The control terminals of the second switch unit Q2, the third switch unit Q3, the fourth switch unit Q4, and the fifth switch unit Q5 are respectively connected to the first control pin HD1, the second control pin LD1, the third control pin HD2, and the fourth control pin LD2 of the first controller 421.

[0091] The second switching unit Q2, the third switching unit Q3, the fourth switching unit Q4, the fifth switching unit Q5, and the first inductor unit L1 achieve synchronous boost and synchronous buck.

[0092] In some implementations, the second switching unit Q2 is turned on, the third switching unit Q3 is turned off, and the fourth switching unit Q4 and the fifth switching unit Q5 can be transistor units, for example, the second switching unit Q2 is turned on, the third switching unit Q3 is turned off, and the fourth switching unit Q4 and the fifth switching unit Q5 can be NMOS transistors, and a parasitic diode is provided between the first and second terminals of each NMOS transistor to provide overvoltage protection for the NMOS transistor.

[0093] In some implementations, please refer to [the relevant documentation]. Figure 8As shown, the connection nodes of the second switch unit Q2 and the third switch unit Q3 are connected to pins BT1 and SW1 of the first controller 421, respectively, and a capacitor C16 is placed between pins BT1 and SW1. The connection nodes of the fourth switch unit Q4 and the fifth switch unit Q5 are connected to pins BT2 and SW2 of the first controller 421, respectively, and a capacitor C25 is placed between pins BT2 and SW2. The first terminal of the first regulating resistor unit 422 is connected to pin SNS1P of the first controller 421 through resistor R13, and the second terminal of the first regulating resistor unit 422 is connected to pin SNS1N of the first controller 421 through resistor R14. A capacitor C17 is placed between pins SNS1P and SNS1N. Pins SNS1P and SNS1N are used to acquire the voltage signal on one side of the voltage output terminal 42a. The first terminal of the second regulating resistor unit 423 is connected to pin SNS2P of the first controller 421 via resistor R28, and the second terminal of the second regulating resistor unit 423 is connected to pin SNS2N of the first controller 421 via resistor R31. A capacitor C26 is provided between pin SNS2P and pin SNS2N. Pins SNS2P and SNS2N are used to acquire the voltage signal on one side of the battery unit 50. For example, in Figure 8 As shown, the first adjusting resistor unit 422 includes a resistor R1, and the second adjusting resistor unit 423 includes resistors R2 and R5 connected in parallel.

[0094] In some embodiments, the DC-DC conversion unit 42 further includes a first capacitor C1 connected in series between the first terminal and the ground terminal of the second switching unit Q2, a second capacitor C2 connected in series between the first terminal and the ground terminal of the fourth switching unit Q4, a first resistor-capacitor unit 424 connected in series between the second terminal and the ground terminal of the second switching unit Q2, and a second resistor-capacitor unit 425 connected in series between the second terminal and the ground terminal of the fourth switching unit Q4. For example, the first resistor-capacitor unit 424 includes a resistor R15 and a capacitor C18 connected in series, and the second resistor-capacitor unit 425 includes a resistor R16 and a capacitor C19 connected in series.

[0095] In this embodiment, by setting a first capacitor, a second capacitor, a first resistor-capacitor unit, and a second resistor-capacitor unit, the operation of the DC-DC conversion unit can be made more stable.

[0096] When the first interface 20 can be a Type-C interface, the third pin 23 can be a VBUS pin.

[0097] In some implementations, please refer to [the relevant documentation]. Figure 8As shown, the DC-DC conversion unit 42 also includes a third resistor unit 426 connected to the voltage output terminal 42a of the DC-DC conversion unit 42, and a sixth switch unit Q6 connected in series between the third resistor unit 426 and the ground terminal. Exemplarily, in Figure 8 As shown, the third resistor unit 426 includes resistors R3 and R4 connected in parallel.

[0098] In some implementations, please refer to [the relevant documentation]. Figure 7 As shown, the first interface 20 also includes a fourth pin 24, and the charging circuit 40 also includes a fourth resistor unit 45 and a fifth resistor unit 46 connected to the fourth pin 24. The fourth resistor unit 45 includes at least two resistors connected in series. The first end of the fourth resistor unit 45 is connected to the fourth pin 24, the second end of the fourth resistor unit 45 is used to receive a first regulated voltage signal, and the third connection node 451 of the fourth resistor unit 45 is connected to the control terminal of the sixth switch unit Q6. The third connection node 451 is the connection node between any two adjacent resistors. The fifth resistor unit 46 is connected in series between the fourth pin 24 and the ground terminal. For example, in... Figure 7 As shown, the fourth resistor unit 45 includes resistors R21 and R22 connected in series, the third connection node 451 is the connection node of resistors R21 and R22, and the fifth resistor unit 46 includes resistor R25.

[0099] When the first interface 20 can be a Type-C interface, the fourth pin 24 can be a GND (ground) pin.

[0100] In some implementations, please refer to [the relevant documentation]. Figure 8 As shown, the charging circuit 40 also includes a temperature feedback unit 47, which includes a sixth resistor unit 471 and a thermistor unit 472. The first terminal of the sixth resistor unit 471 receives a second regulated voltage signal, and the second terminal of the sixth resistor unit 471 is connected to the first terminal of the thermistor unit 472. The second terminal of the thermistor unit 472 is grounded. The connection node 473 between the sixth resistor unit 471 and the thermistor unit 472 is connected to the DC-DC converter unit 42. The thermistor unit 472 may include a negative temperature coefficient thermistor NTC1. The connection node 473 can be connected to the ADIN pin of the first controller 421 in the DC-DC converter unit 42 to output a temperature signal to the first controller 421.

[0101] In addition, the first controller 421 and the charging control chip 30 can communicate via the I2C (Inter-Integrated Circuit) bus.

[0102] This application also provides a charging device 400, please refer to... Figure 9As shown, the charging device 400 includes a main body and a charging circuit 40 as described above, disposed within the main body. Electronic devices may include, but are not limited to, power supplies, scales, body fat scales, nutritional scales, pulse oximeters, body composition analyzers, displays, USB (Universal Serial Bus) docking stations, automobiles, smart wearable devices, mobile terminals, and smart home devices. Power supplies may be, for example, charging adapters or power banks. Smart wearable devices include, but are not limited to, smartwatches, smart bracelets, and neck massagers. Mobile terminals include, but are not limited to, smartphones, laptops, tablets, and POS (point of sales terminal) machines.

[0103] The charging device in this embodiment obtains current charging information through a preset charging protocol. During the charging process, it can display the current charging information of the electronic device. When the screen of the mobile terminal is off, the user can directly understand the current charging information through the display without having to turn the screen of the mobile terminal back on, avoiding cumbersome operations and improving the user experience.

[0104] One embodiment of this application provides a charging control method applied to a charging device with a display unit. Please refer to [link to relevant documentation]. Figure 10 As shown, the charging control method includes the following steps: S10 obtains charging parameters according to the preset charging protocol.

[0105] S20: Output power according to charging parameters, obtain the current charging information of electronic device based on preset charging protocol, and control the display unit to display the current charging information.

[0106] The charging control method in this embodiment obtains current charging information through a preset charging protocol. During the charging process, the current charging information of the electronic device can be displayed. When the screen of the mobile terminal is off, the user can directly understand the current charging information through the display without having to turn the screen of the mobile terminal back on, thus avoiding cumbersome operations and improving the user experience.

[0107] As one implementation method, the charging control method of this embodiment can be implemented by the charging control circuit 100 described above. Specifically, in step S10, the charging management unit 10 is used to obtain charging parameters according to at least one preset charging protocol. In step S20, the charging control unit 13 is used to output power according to the charging parameters, and obtain the current charging information of the electronic device through the charging management unit 10, and control the display unit to display the current charging information.

[0108] The charging control method of this embodiment can be implemented by the charging control circuit 100 of the above embodiment. For related descriptions, please refer to the embodiments of the charging control circuit 100 and various implementation methods.

[0109] In one implementation, the charging management unit 10 includes a first charging management unit 11, the preset charging protocol includes a first charging protocol, and the charging control method includes the following steps: S11, when charging is performed using the first charging protocol, the first charging management unit 11 obtains the first charging parameters according to the first charging protocol, and the charging control unit 13 outputs power according to the first charging parameters; the first charging management unit 11 obtains the current charging information of the electronic device based on the first charging protocol, and the charging control unit 13 controls the display unit to display the current charging information.

[0110] The charging control method of this embodiment can be implemented by the charging control circuit 100 of the above embodiment. For related descriptions, please refer to the embodiments of the charging control circuit 100 and various implementation methods.

[0111] In one implementation, the charging management unit 10 further includes a second charging management unit 12, and the preset charging protocol also includes a second charging protocol. The charging control method includes the following steps: S12, when charging is performed using the second charging protocol, the second charging management unit 12 obtains the second charging parameters according to the second charging protocol, and the charging control unit 13 outputs power according to the second charging parameters; the second charging management unit 12 obtains the current charging information of the electronic device based on the second charging protocol, and the charging control unit 13 controls the display unit to display the current charging information.

[0112] The charging control method of this embodiment can be implemented by the charging control circuit 100 of the above embodiment. For related descriptions, please refer to the embodiments of the charging control circuit 100 and various implementation methods.

[0113] In one embodiment, the charging device includes a first interface, the first interface including a first pin, and prior to step S11, it further includes: S21, when the first charging management unit 11 detects that the electronic device is connected to the charging control circuit through the first pin, it sends a first charging parameter acquisition instruction to the electronic device through the first pin according to the first charging protocol; S22, the first charging management unit 11 receives the first charging parameters sent by the electronic device in response to the first charging parameter acquisition command.

[0114] In one implementation, the first interface further includes a second pin, and prior to step S12, it also includes: S31, when the second charging management unit 12 detects that the electronic device is connected to the charging control circuit through the second pin, it obtains a second charging protocol that matches the electronic device from at least one preset second charging protocol; S32, the second charging management unit 12 sends a second charging parameter acquisition instruction to the electronic device via the second pin according to the second charging protocol matched with the electronic device; S33, the second charging management unit 12 receives the second charging parameters sent by the electronic device in response to the second charging parameter acquisition command.

[0115] In some implementations, step S31 specifically includes the following steps: S41, the second charging management unit 12 sends a device production information acquisition command to the electronic device via the second pin; S42, the second charging management unit 12 receives the device production information sent by the electronic device in response to the device production information acquisition instruction, and acquires the second charging protocol that matches the electronic device based on the device production information.

[0116] In some implementations, step S11, obtaining the current charging information of the electronic device according to the first charging protocol, specifically includes the following steps: S51, when charging is performed using the first charging protocol, the first charging management unit 11 sends a current charging information acquisition instruction to the electronic device via the first pin based on the first charging protocol; S52, the first charging management unit 11 receives the current charging information sent by the electronic device in response to the current charging information acquisition command.

[0117] In some implementations, the first charging protocol is the PD protocol, and the current charging information includes charging capability information. For example, the charging capability information may include at least a variety of the following: manufacturer information of the electronic device, number of battery cells, mode of the electronic device, minimum power of the electronic device, operating power of the electronic device, and maximum power of the electronic device.

[0118] In some implementations, step S11, obtaining the current charging information of the electronic device according to the first charging protocol, specifically includes the following steps: S51a, when charging is performed using the first charging protocol, the first charging management unit 11 sends a charging capability information acquisition instruction to the electronic device via the first pin based on the first charging protocol. S52a, the first charging management unit 11 receives the charging capability information sent by the electronic device in response to the charging capability information acquisition command.

[0119] For example, the charging capability information acquisition instruction is either Get_Sink_Cap_Extended Message or Get_Source_Cap_Extended Message. When it identifies itself as a source, the first charging management unit 11 sends Get_Sink_Cap_Extended Message to obtain the charging capability information of the electronic device. When it identifies itself as a sink, the first charging management unit 11 sends Get_Source_Cap_Extended Message to obtain the charging capability information of the electronic device.

[0120] For example, the charging capability information acquisition instruction is a custom VDM (Vendor Defined Message) extension command, and the charging capability information acquisition instruction is a VDM message carrying a charging capability information identifier. For example, the charging capability information identifier can be defined as a5.

[0121] In some implementations, the first charging protocol is the PD protocol, and the current charging information includes battery capacity information. For example, the battery capacity information may include the battery design capacity and the battery's saturated capacity from the last charge.

[0122] In some implementations, step S11, obtaining the current charging information of the electronic device according to the first charging protocol, specifically includes the following steps: S51b, when charging is performed using the first charging protocol, the first charging management unit 11 sends a battery capability information acquisition instruction to the electronic device via the first pin based on the first charging protocol. S52b, the first charging management unit 11 receives battery capability information sent by the electronic device in response to the battery capability information acquisition command.

[0123] For example, the battery capability information acquisition instruction is Get_Battery_Cap Message; or, the battery capability information acquisition instruction is a VDM message carrying a battery capability information identifier.

[0124] In some implementations, the first charging protocol is the PD protocol, and the current charging information includes battery status information. For example, the battery status information may include at least one of the current battery capacity, the current battery charge / discharge state, and the battery effective state.

[0125] In some implementations, step S11, obtaining the current charging information of the electronic device according to the first charging protocol, specifically includes the following steps: S51c, when charging is performed using the first charging protocol, the first charging management unit 11 sends a battery status information acquisition instruction to the electronic device via the first pin based on the first charging protocol. S52c, the first charging management unit 11 receives battery status information sent by the electronic device in response to the battery status information acquisition command.

[0126] For example, the battery status information retrieval instruction is Get_Battery_Status Message; or, the battery status information retrieval instruction is a VDM message carrying a battery status information identifier.

[0127] In some implementations, the first charging protocol is the PD protocol, and the current charging information includes temperature information. For example, the temperature information may be battery temperature information or electronic device temperature information.

[0128] In some implementations, step S11, obtaining the current charging information of the electronic device according to the first charging protocol, specifically includes the following steps: S51d, when charging is performed using the first charging protocol, the first charging management unit 11 sends a temperature information acquisition command to the electronic device via the first pin based on the first charging protocol; S52d, the first charging management unit 11 receives temperature information sent by the electronic device in response to the temperature information acquisition command.

[0129] For example, the temperature information acquisition instruction is Get_Status Message; or, the temperature information acquisition instruction is a VDM message carrying a temperature information identifier.

[0130] In some implementations, step S12, obtaining the current charging information of the electronic device according to the second charging protocol, includes: S61, when charging is performed using the second charging protocol, the second charging management unit 12 sends a current charging information acquisition instruction to the electronic device via the second pin based on the second charging protocol; S62, the second charging management unit 12 receives the current charging information sent by the electronic device in response to the current charging information acquisition command.

[0131] An embodiment of this application also provides a charging device for implementing the above-described charging control method, specifically for implementing steps S10 and S20, S11, S12, S21 and S22, S31 to S33, S41 and S42, S51 and S52, S51a and S52a, S51b and S52b, S51c and S52c, S51d and S52d, or S61 and S62.

[0132] The charging device includes a display unit, which may be a display screen; the charging device may be a power bank (portable charger) or a charging adapter (charging head).

[0133] This application also provides a charging control method in one embodiment, applied to the above-mentioned electronic device 300. Please refer to [link to relevant documentation]. Figure 11 As shown, the charging control method includes the following steps: S71 sends charging parameters to the charging device according to the preset charging protocol.

[0134] Among them, charging parameters are sent to the charging management unit 10 of the charging device according to the preset charging protocol.

[0135] S72 sends current charging information to the charging device according to the preset charging protocol.

[0136] The device can receive a current charging information acquisition command sent by the charging management unit 10, and in response to the current charging information acquisition command, send the current charging information to the charging management unit 10 of the charging device.

[0137] In one implementation, the preset charging protocol includes a first charging protocol. In step S71, charging parameters are sent to the charging device according to the first charging protocol. In step S72, current charging information is sent to the charging device according to the first charging protocol.

[0138] In this embodiment, charging parameters are sent to the first charging management unit 11 of the charging device according to the first charging protocol. A current charging information acquisition command sent by the first charging management unit 11 is received, and in response to the current charging information acquisition command, current charging information is sent to the first charging management unit 11 of the charging device.

[0139] As one implementation method, the first charging protocol is the PD protocol; the current charging information includes charging capacity information; step S71 specifically includes the following steps: S711a, receive a charging capability information acquisition instruction sent by the charging device according to the first charging protocol; S712a, in response to the charging capability information acquisition command, sends charging capability information to the charging device.

[0140] It can receive a charging capability information acquisition instruction sent by the first charging management unit 11 of the charging device, and in response to the charging capability information acquisition instruction, send charging capability information to the first charging management unit 11 of the charging device.

[0141] In some implementations, the charging capability information acquisition instruction is Get_Sink_Cap_Extended Message or Get_Source_Cap_Extended Message; or, the charging capability information acquisition instruction is a VDM message carrying a charging capability information identifier.

[0142] In one implementation, the first charging protocol is the PD protocol; the current charging information includes battery capacity information; step S71 specifically includes the following steps: S711b receives a battery capability information acquisition instruction sent by an electronic device according to a first charging protocol; S712b, in response to a battery capability information acquisition command, sends battery capability information to the charging device.

[0143] The device can receive a battery capability information acquisition instruction sent by the first charging management unit 11 of the charging device, and in response to the battery capability information acquisition instruction, send battery capability information to the first charging management unit 11 of the charging device.

[0144] In some implementations, the battery capability information acquisition instruction is a Get_Battery_Cap Message; or, the battery capability information acquisition instruction is a VDM message carrying a battery capability information identifier.

[0145] As one implementation method, the first charging protocol is the PD protocol; the current charging information includes battery status information; step S71 specifically includes the following steps: S711c receives a battery status information acquisition instruction sent by an electronic device according to a first charging protocol; The S712c, in response to a battery status information acquisition command, sends battery status information to the charging device.

[0146] It can receive a battery status information acquisition instruction sent by the first charging management unit 11 of the charging device, and in response to the battery status information acquisition instruction, send battery status information to the first charging management unit 11 of the charging device.

[0147] In some implementations, the battery status information acquisition instruction is a Get_Battery_Status Message; or, the battery status information acquisition instruction is a VDM message carrying a battery status information identifier.

[0148] As one implementation method, the first charging protocol is the PD protocol; the current charging information includes temperature information; step S71 specifically includes the following steps: S711d receives a temperature information acquisition instruction sent by an electronic device according to a first charging protocol; The S712d sends temperature information to the charging device in response to a temperature information acquisition command.

[0149] The device can receive a temperature information acquisition command sent by the first charging management unit 11 of the charging device, and in response to the temperature information acquisition command, send temperature information to the first charging management unit 11 of the charging device.

[0150] In some implementations, the temperature information acquisition instruction is a Get_Status Message; or, the temperature information acquisition instruction is a VDM message carrying a temperature information identifier.

[0151] An embodiment of this application also provides an electronic device for implementing the above-described charging control method, specifically for implementing steps S71 and S72, and also for implementing steps S71 or S72, S711a and S712a, S711b and S712b, S711c and S712c, and S711d and S712d.

[0152] Among them, electronic devices can be mobile terminals, such as mobile phones, tablets, laptops, or wearable devices.

[0153] The above description is merely an embodiment of this application. It should be noted that those skilled in the art can make improvements without departing from the inventive concept of this application, but these improvements all fall within the protection scope of this application.

Claims

1. A charge control method characterized by, The method is applied to a charging device with a display unit, and the method comprises: obtaining charging parameters according to a preset charging protocol; outputting power according to the charging parameters, obtaining current charging information of an electronic device based on the preset charging protocol, and controlling the display unit to display the current charging information.

2. The charge control method according to claim 1, characterized by, The charging device comprises at least one charging management unit and a charging control unit, the charging management unit comprises a first charging management unit, the preset charging protocol comprises a first charging protocol, and the charging control method comprises: when charging is performed by using the first charging protocol, the first charging management unit obtains first charging parameters based on the first charging protocol, and the charging control unit outputs power according to the first charging parameters; the first charging management unit obtains current charging information of an electronic device based on the first charging protocol, and the charging control unit controls the display unit to display the current charging information.

3. The charge control method according to claim 2, characterized by, The charging device comprises a first interface comprising a first pin; before the first charging management unit obtains first charging parameters according to the first charging protocol, the method further comprises: when the first charging management unit detects that the electronic device is connected to the charging control circuit through the first pin, the first charging management unit sends a first charging parameter obtaining instruction to the electronic device through the first pin according to the first charging protocol; receiving first charging parameters sent by the electronic device in response to the first charging parameter obtaining instruction.

4. The charge control method according to claim 2, characterized by, The charging management unit comprises a second charging management unit, the preset charging protocol comprises a second charging protocol, and the charging control method further comprises: when charging is performed by using the second charging protocol, the second charging management unit obtains second charging parameters according to the second charging protocol, and the charging control unit outputs power according to the second charging parameters; the second charging management unit obtains current charging information of an electronic device based on the second charging protocol, and the charging control unit controls the display unit to display the current charging information.

5. The charge control method according to claim 4, characterized by, The charging device comprises a first interface comprising a second pin; before the second charging management unit obtains second charging parameters according to the second charging protocol, the method further comprises: when the second charging management unit detects that the electronic device is connected to the charging control circuit through the second pin, the second charging management unit obtains the second charging protocol matched with the electronic device from at least one preset second charging protocol, sends a second charging parameter obtaining instruction to the electronic device through the second pin according to the second charging protocol matched with the electronic device; receiving second charging parameters sent by the electronic device in response to the second charging parameter obtaining instruction.

6. The charge control method according to claim 5, characterized by, The method of obtaining the second charging protocol matched with the electronic device from at least one preset second charging protocol comprises: sending a device production information obtaining instruction to the electronic device through the second pin; Receiving device production information sent by the electronic device in response to the device production information acquisition instruction, and acquiring the second charging protocol matched with the electronic device according to the device production information.

7. The charge control method according to claim 2, characterized by, The first charging management unit acquires current charging information of the electronic device based on the first charging protocol, including: When charging is performed by using the first charging protocol, the first charging management unit sends a current charging information acquisition instruction to the electronic device via the first pin based on the first charging protocol; Receiving the current charging information sent by the electronic device in response to the current charging information acquisition instruction.

8. The charge control method according to claim 7, characterized by, The first charging protocol is a PD protocol; and the current charging information includes charging capability information; The first charging management unit acquires current charging information of the electronic device based on the first charging protocol, including: When charging is performed by using the first charging protocol, the first charging management unit sends a charging capability information acquisition instruction to the electronic device via the first pin based on the first charging protocol; The first charging management unit receives the charging capability information sent by the electronic device in response to the charging capability information acquisition instruction.

9. The charge control method according to claim 8, characterized by, The charging capability information acquisition instruction is a Get_Sink_Cap_Extended Message or a Get_Source_Cap_Extended Message; Or, the charging capability information acquisition instruction is a VDM message carrying an identifier of charging capability information.

10. The charge control method according to claim 7, characterized by, The first charging protocol is a PD protocol; and the current charging information includes battery capability information; The first charging management unit acquires current charging information of the electronic device based on the first charging protocol, including: When charging is performed by using the first charging protocol, the first charging management unit sends a battery capability information acquisition instruction to the electronic device via the first pin based on the first charging protocol; The first charging management unit receives the battery capability information sent by the electronic device in response to the battery capability information acquisition instruction.

11. The charge control method according to claim 10, characterized by, The battery capability information acquisition instruction is a Get_Battery_Cap Message; Or, the battery capability information acquisition instruction is a VDM message carrying an identifier of battery capability information.

12. The charge control method according to claim 7, characterized by, The first charging protocol is a PD protocol; and the current charging information includes battery state information; The first charging management unit acquires current charging information of the electronic device based on the first charging protocol, including: When charging is performed by using the first charging protocol, the first charging management unit sends a battery state information acquisition instruction to the electronic device via the first pin based on the first charging protocol; The first charging management unit receives the battery state information sent by the electronic device in response to the battery state information acquisition instruction.

13. The charge control method according to claim 12, characterized by, The battery state information acquisition instruction is a Get_Battery_Status Message; Or, the battery state information acquisition instruction is a VDM message carrying an identifier of battery state information.

14. The charge control method according to claim 7, characterized by, The first charging protocol is a PD protocol; and the current charging information includes temperature information. The first charging management unit obtains current charging information of the electronic device based on the first charging protocol, including: When charging is performed using the first charging protocol, the first charging management unit sends a temperature information obtaining instruction to the electronic device via a first pin based on the first charging protocol; The first charging management unit receives the temperature information sent by the electronic device in response to the temperature information obtaining instruction.

15. The charge control method according to claim 14, wherein The temperature information obtaining instruction is a Get_Status Message. Alternatively, the temperature information obtaining instruction is a VDM message carrying a temperature information identifier.

16. The charge control method according to claim 5, wherein The second charging management unit obtains current charging information of the electronic device based on the second charging protocol, including: When charging is performed using the second charging protocol, the second charging management unit sends a current charging information obtaining instruction to the electronic device via a second pin based on the second charging protocol; The second charging management unit receives the current charging information sent by the electronic device in response to the current charging information obtaining instruction.

17. A charge control method applied to an electronic device, characterized by, including: sending charging parameters to the charging device according to a preset charging protocol; sending current charging information to the charging device according to the preset charging protocol.

18. The charge control method according to claim 17, wherein The preset charging protocol includes a first charging protocol, and the charging control method includes: sending charging parameters to the charging device according to the first charging protocol; sending current charging information to the charging device according to the first charging protocol.

19. The charge control method according to claim 18, wherein The first charging protocol is a PD protocol; and the current charging information includes temperature information. The sending of the current charging information to the charging device according to the first charging protocol includes: receiving a temperature information obtaining instruction sent by the electronic device according to the first charging protocol; sending the temperature information to the charging device in response to the temperature information obtaining instruction.

20. The charge control method according to claim 19, wherein The temperature information obtaining instruction is a Get_Status Message. Alternatively, the temperature information obtaining instruction is a VDM message carrying a temperature information identifier.

21. The charge control method according to claim 18, wherein The first charging protocol is a PD protocol; and the current charging information includes battery capability information. The sending of the current charging information to the charging device according to the first charging protocol includes: receiving a battery capability information obtaining instruction sent by the electronic device according to the first charging protocol; sending the battery capability information to the charging device in response to the battery capability information obtaining instruction.

22. The charge control method according to claim 21, wherein The battery capability information obtaining instruction is a Get_Battery_Cap Message. Alternatively, the battery capability information obtaining instruction is a VDM message carrying a battery capability information identifier.

23. The charge control method according to claim 18, wherein The first charging protocol is a PD protocol; and the current charging information includes battery state information. The sending of the current charging information to the charging device according to the first charging protocol includes: receiving a battery state information obtaining instruction sent by the electronic device according to the first charging protocol; In response to the battery status information acquisition instruction, the battery status information is sent to the charging device.

24. The charge control method according to claim 23, wherein The battery status information acquisition instruction is a Get_Battery_Status message. Or, the battery status information acquisition instruction is a VDM message carrying a battery status information identifier.

25. The charge control method according to claim 18, wherein The first charging protocol is a PD protocol; and the current charging information includes temperature information. The sending of the current charging information to the charging device according to the first charging protocol includes: receiving a temperature information acquisition instruction sent by the electronic device according to the first charging protocol; In response to the temperature information acquisition instruction, the temperature information is sent to the charging device.

26. The charge control method according to claim 25, wherein The temperature information acquisition instruction is a Get_Status message. Or, the temperature information acquisition instruction is a VDM message carrying a temperature information identifier.

27. A charge control circuit, characterized by comprising: The charging control circuit includes: a charging management unit connected with the first interface, the charging management unit being configured to acquire charging parameters according to at least one preset charging protocol; a charging control unit connected with the charging management unit, the charging control unit being configured to output power according to the charging parameters, and acquire current charging information of the electronic device through the charging management unit, so as to control the display unit to display the current charging information.

28. The charge control circuit of claim 27, wherein, The charging management unit is provided with two charging management units respectively: a first charging management unit connected with a first pin of the first interface, the first charging management unit being configured to acquire first charging parameters according to at least one first charging protocol; a second charging management unit connected with a second pin of the first interface, the second charging management unit being configured to acquire second charging parameters according to at least one second charging protocol; The charging control unit is connected with the first charging management unit and the second charging management unit respectively, the charging control unit being configured to output power according to the first charging parameters when charging is performed by using the first charging protocol, and output power according to the second charging parameters when charging is performed by using the second charging protocol; and the charging control unit is further configured to acquire current charging information of the electronic device through the first charging management unit or the second charging management unit, so as to control the display unit to display the current charging information.

29. A charge control chip, characterized by The charging control circuit includes the charging control circuit according to any one of claims 27-28.

30. A charging circuit, comprising: The charging control circuit includes: a first interface including a first pin, a second pin and a third pin; The charging control chip includes the charging control chip according to claim 29. a load switch unit connected between the third pin and a battery unit, the load switch unit being connected with the charging control chip, and the load switch unit being configured to control the on or off of a charging path according to a first control signal sent by the charging control chip; a direct current-direct current conversion unit connected between the load switch unit and the battery unit, the direct current-direct current conversion unit being connected with the charging control chip, the direct current-direct current conversion unit being configured to control an output voltage of the battery unit according to a second control signal sent by the charging control chip; a display unit connected with the charging control chip, the display unit being configured to display current charging information of the electronic device according to a third control signal sent by the charging control chip.

31. A charging device, comprising: a charging control method as claimed in any one of claims 1 to 16; or, a charging control chip as claimed in claim 29; or, a charging circuit as claimed in claim 30.

32. An electronic device, comprising: a charging control method as claimed in any one of claims 17 to 26.

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