A charging control circuit, a charging control method, and an electronic device

Abstract

The present application discloses a charging control circuit, a charging control method, and an electronic device. The charging control circuit includes a control module, a first charging circuit, and a second charging circuit. Among them, after the first charging circuit and the second charging circuit are connected in parallel, they are connected in series between the control module and the battery. The control module is configured to detect the adapter parameters of a power adapter connected to the charging control circuit, and control the power adapter to charge the battery through the first charging circuit or the second charging circuit according to the adapter parameters.

Description

Technical Field

[0001] The present application relates to the technical field of charging control, and particularly to a charging control circuit, a charging control method, and an electronic device. Background Art

[0002] With the continuous increase in the usage rate of electronic devices such as mobile phones or laptops, users have higher requirements for the charging speed of electronic devices. Thus, fast charging technology has been rapidly developed and widely applied. However, there is a problem that the charging control circuit of the electronic device is not matched with the adapter. Summary of the Invention

[0003] To solve one or more aspects of the above technical problems, the present application provides a charging control circuit, a charging control method, and an electronic device.

[0004] The technical solution of the present application is implemented as follows:

[0005] According to a first aspect of the present application, there is provided a charging control circuit, the charging control circuit including: a control module, a first charging circuit, and a second charging circuit; the first charging circuit and the second charging circuit are connected in parallel and then connected in series between the control module and the battery; the control module is configured to detect adapter parameters of a power adapter connected to the charging control circuit, and according to the adapter parameters, control the power adapter to select to charge the battery through the first charging circuit or the second charging circuit.

[0006] According to an embodiment of the present application, a first voltage ratio of an input voltage to an output voltage of the first charging circuit is a fixed value; a second voltage ratio of an input voltage to an output voltage of the second charging circuit is a variable voltage ratio.

[0007] According to an embodiment of the present application, the first charging circuit includes a switch and a first charging branch.

[0008] According to an embodiment of the present application, the first charging circuit includes one switched-capacitor converter unit or multiple parallel-connected switched-capacitor converter units; according to an embodiment of the present application, the second charging circuit includes: one second charging branch with a buck-boost function or multiple parallel-connected second charging branches with a buck-boost function.

[0009] According to an embodiment of the present application, the control module includes: a receiving unit, configured to receive a power value of the battery; a first control unit, configured to control the power adapter to select to charge the battery through the first charging circuit when the adapter parameters indicate that the power adapter has a programmable voltage module and the power value is greater than or equal to a first set power value.

[0010] According to an embodiment of the present application, the control module includes: a second control unit configured to control the power adapter to select to charge the battery through the second charging circuit when the adapter parameters indicate that the power adapter has a programmable voltage module and the power value is greater than or equal to a second set power value; wherein, the second set power value is greater than the first set power value.

[0011] According to an embodiment of the present application, the control module includes: a third control unit configured to control the power adapter to select to charge the battery through the second charging circuit when the adapter parameters indicate that the power adapter does not have a programmable voltage module.

[0012] According to a second aspect of the present application, there is also provided a charging control method, the method including: detecting adapter parameters of a power adapter connected to a charging control circuit, wherein the charging control circuit includes a first charging circuit and a second charging circuit connected in parallel between the power adapter and the battery; and controlling the power adapter to select to charge the battery through the first charging circuit or the second charging circuit according to the adapter parameters.

[0013] According to a third aspect of the present application, there is also provided an electronic device, the electronic device including the above-mentioned charging control circuit.

[0014] In the charging control circuit, charging control method, and electronic device provided by the embodiments of the present application, the charging control circuit includes a control module, a first charging circuit, and a second charging circuit. Among them, the first charging circuit and the second charging circuit are connected in parallel and then connected in series between the control module and the battery. The control module is configured to detect adapter parameters of a power adapter connected to the charging control circuit and control the power adapter to select to charge the battery through the first charging circuit or the second charging circuit according to the adapter parameters. In this way, the first charging circuit and the first charging circuit can adapt to different types of power adapters. When using different types of power adapters, they can cooperate with the matching charging circuits to achieve higher charging efficiency, thereby significantly improving the charging efficiency of the electronic device. Description of the Drawings

[0015] By reading the following detailed description with reference to the drawings, the above and other objects, features, and advantages of the exemplary embodiments of the present application will become readily understood. In the drawings, several embodiments of the present application are shown in an exemplary rather than restrictive manner, where:

[0016] In the drawings, the same or corresponding reference numerals represent the same or corresponding parts.

[0017] Figure 1Shows a schematic diagram of the composition structure of the charging control circuit according to an embodiment of the present application;

[0018] Figure 2 Shows a schematic diagram of the circuit principle of the charging control circuit according to an embodiment of the present application;

[0019] Figure 3 Shows a schematic diagram of charging mode switching for the charging control circuit according to an embodiment of the present application to control the charging process of the electronic device;

[0020] Figure 4 Shows a schematic diagram of the implementation process of the charging control method according to an embodiment of the present application;

[0021] Figure 5 Shows a schematic diagram of the principle of a voltage conversion circuit for further improving the power conversion efficiency of an electronic device provided in another embodiment of the present application;

[0022] Figure 6 Shows a comparison graph of the conversion efficiency curves of the electronic device before and after applying the voltage conversion circuit according to another embodiment of the present application. Detailed implementation manners

[0023] The principles and spirit of the present application will be described below with reference to several exemplary embodiments. It should be understood that these embodiments are provided only to enable those skilled in the art to better understand and then implement the present application, and do not limit the scope of the present application in any way. On the contrary, these embodiments are provided to make the present application more thorough and complete, and to be able to fully convey the scope of the present application to those skilled in the art.

[0024] The technical solutions of the present application will be further elaborated in detail below with reference to the accompanying drawings and specific embodiments.

[0025] Figure 1 Shows a schematic diagram of the composition structure of the charging control circuit according to an embodiment of the present application.

[0026] Refer to Figure 1 , for the charging control circuit according to an embodiment of the present application, the charging control circuit 10 includes: a control module 103, a first charging circuit 101, and a second charging circuit 102; the first charging circuit 101 and the second charging circuit 102 are connected in parallel and then connected in series between the control module 103 and the battery 12; the control module 103 is used to detect the adapter parameters of the power adapter 11 connected to the charging control circuit 10, and according to the adapter parameters, control the power adapter 11 to select to charge the battery through the first charging circuit 101 or the second charging circuit 102.

[0027] In this embodiment of the present application, the power adapter can be a Type-C adapter. For a power adapter with a fixed output voltage, such as a power adapter without PPS (Programmable Power Supply), a charging control circuit with a buck-boost function can be selected to match the output voltage of the power adapter with the voltage required by the battery. For a power adapter with a variable output voltage, a charging control circuit with a fixed input-output voltage ratio can be selected, and the output voltage of the power adapter can be matched with the input voltage of the charging control circuit. For example, a power adapter with PPS.

[0028] In this embodiment of the present application, the first voltage ratio of the input voltage to the output voltage of the first charging circuit 101 is a fixed value; the second voltage ratio of the input voltage to the output voltage of the second charging circuit 102 is a variable voltage ratio. The first charging efficiency of charging the battery through the first charging circuit 101 is greater than the second charging efficiency of charging the battery through the second charging circuit.

[0029] A power adapter with a variable output voltage can be matched with the first charging circuit 101 with a fixed first voltage ratio of the input voltage to the output voltage to charge the battery with the higher charging efficiency of the first charging circuit 101. The second charging circuit 102 with a variable second voltage ratio of the input voltage to the output voltage can be matched with a voltage adapter with a fixed output voltage, and the combination of the two can maximize the charging efficiency of the electronic device.

[0030] In this embodiment of the present application, the first charging circuit 101 includes a switch and a first charging branch. The first charging circuit 101 includes a switched-capacitor converter unit or multiple parallel switched-capacitor converter units.

[0031] It should be noted that in the actual application process, it may also involve configuring a switch for each switched-capacitor converter unit, so that when charging the battery through the first charging circuit 101, a set number of switched-capacitor converter units can be selected to charge the battery. The more the number of switched-capacitor converter units, the smaller the power that each switched-capacitor converter unit needs to bear, the smaller its heat generation, and the higher the charging efficiency. However, correspondingly, for each additional switched-capacitor converter unit, to a certain extent, it will increase the volume of the electronic device, which is not conducive to the structural design of the electronic device. Therefore, on the basis of ensuring that the charging control circuit can adapt to the charging requirements of the electronic device, the number of switched-capacitor converter units that matches the rated capacity of the battery can be selected. For example, by selecting 2 switched-capacitor converter units, the charging efficiency can enable the complete charging process of the battery of the electronic device to be completed within 1 hour, and the structural design of the electronic device can accommodate 2 switched-capacitor converter units, then the number of switched-capacitor converter units can be determined to be 2.

[0032] In this embodiment of the present application, the second charging circuit 102 includes a second charging branch with a buck-boost function or multiple parallel second charging branches with a buck-boost function.

[0033] Similarly, when charging the battery through the first charging circuit 101, a set number of second charging branches can be selected to charge the battery.

[0034] For example, the first charging branch includes multiple parallel switched-capacitor converter units. The switched-capacitor converter units have a high charging efficiency and are used in cooperation with a power adapter with a variable output voltage. The charging efficiency of the switched-capacitor converter units can reach 98%, and the heat generated during the charging process is small, and problems such as overheating are not likely to occur.

[0035] For a power adapter with a fixed output voltage, in order to match the output voltage of the power adapter with the input voltage required by the battery, or to match the output voltage of the power adapter with the input voltage of the system voltage ( Figure 1 not shown in the figure, Figure 2 shown as VSYS in the figure), a charging control circuit with a buck-boost function is required, such as a Buck-boost circuit.

[0036] During actual application, the number of the first charging branch and the second charging branch can be determined according to the size of the space that the charging control circuit in the electronic device can occupy, the battery charging requirements of the electronic device, and so on. Multiple second charging branches will share the charging power of the power adapter 11 for the battery 12 at the same time. Therefore, the more the number of the second charging branches, the smaller the charging power shared by each second charging branch, the lower the charging current, and the less likely to generate heat. In a specific application example of the present application, the second charging circuit may include two Buck-boost circuits.

[0037] In this way, when the power adapter supports variable voltage, a charging circuit with higher charging efficiency but fixed input and output voltages can be selected to charge the battery. When the power adapter does not support variable voltage, a charging circuit with buck-boost function can be selected. While ensuring the adaptability of the power adapter with voltage adaptability, the charging efficiency is greatly improved.

[0038] Figure 2 The circuit principle schematic diagram of the charging control circuit according to the embodiment of the present application is shown.

[0039] Reference Figure 2 , the charging control circuit according to the embodiment of the present application can be connected to the power adapter through the adapter socket VBUS. The output voltage of the power adapter can be 3V - 24V, or 3V - 28V, or 3V - 36V, or other applicable voltage levels. The output end of the charging control circuit is connected to the battery BATT. The battery BATT can include four battery modules of 1S - 4S. The battery can also be other numbers of battery modules. The present application does not make specific limitations on this. A voltage converter can be connected to the system voltage VSYS at the output end of the charging control circuit to convert the output voltage of the charging control circuit into the voltage required by the specific power consumption module of the electronic device, such as: 1.5V, 1.8V, etc. Q1 - Q8 in the charging control circuit can be NMOS field effect transistors, and BATFET can be a PMOS field effect transistor. The parameters of the 9 field effect transistors are selected according to the requirements of the charging control circuit during actual application, and no specific limitations are made here.

[0040] It should be noted that in Figure 2In the charging control circuit according to the embodiment of the present application, the switched-capacitor converter unit included in the first charging circuit 101 may be a charge pump. Here, n charge pumps are shown. However, in actual application, the number of charge pumps can be determined according to actual requirements, and the present application does not make specific limitations thereto. Similarly, the second charging branch included in the first charging circuit 101 may be a Bunk-boost circuit. Here, n Bunk-boost circuits are shown. However, in actual application, the number of Bunk-boost circuits can be determined according to actual requirements, and the present application does not make specific limitations thereto.

[0041] In this embodiment of the present application, the control module includes a receiving unit and a first control unit. The receiving unit is configured to receive the battery power value. The first control unit is configured to control the power adapter to select to charge the battery through the first charging circuit 101 when the adapter parameters indicate that the power adapter has a programmable voltage module and the power value is greater than or equal to the first set power value.

[0042] Furthermore, based on the above embodiment, in order to better control the charging circuit, select a suitable charging circuit to charge the battery, and ensure the safety of the electronic device. In another embodiment of the present application, the control module includes a second control unit, which is configured to control the power adapter to select to charge the battery through the second charging circuit 102 when the adapter parameters indicate that the power adapter has a programmable voltage module and the power value is greater than or equal to the second set power value. Here, the second set power value is greater than the first set power value.

[0043] Furthermore, based on the above embodiment, in another embodiment of the present application, the control module further includes a third control unit, which is configured to control the power adapter to select to charge the battery through the second charging circuit 102 when the adapter parameters indicate that the power adapter does not have a programmable voltage module.

[0044] To more clearly illustrate the control process of the charging control circuit according to the embodiment of the present application for controlling the charging process of the electronic device. Figure 3 A schematic diagram of charging mode switching for the charging control circuit according to the embodiment of the present application to control the charging process of the electronic device is shown.

[0045] Refer to Figure 3, after the power adapter is connected to the electronic device, when the control module detects the connection of the power adapter, it first controls the Buck-boost charger to work and continuously detects the parameters of the power adapter in real time. When it is determined that the power adapter has a programmable voltage module and the pre-charging is completed, it switches to fast charging the battery through a charge pump with higher charging efficiency. Here, the pre-charging judgment can adopt a general pre-charging judgment method. For example, it can be set that when the battery power reaches the first set value, it is determined that the pre-charging of the battery is completed. For example: the first set value is 5%.

[0046] Here, the function of pre-charging the battery is to effectively protect the capacitors, fuses, DC contactors, etc. in the battery; prevent damage to switching devices such as capacitors and DC contactors when directly connecting a large current to the battery for charging instantly.

[0047] When charging the battery through the charge pump and the battery power reaches the second set value, it is determined that the fast charging is completed, and it switches to the Buck-boost charger to work and enters the trickle charging mode to charge the battery. For example: the second set value is 95%.

[0048] In addition, during the process of charging the battery, the battery temperature is detected in real time. If the battery temperature exceeds the set temperature threshold and the battery is currently being fast charged through the charge pump, it can switch to the Buck-boost charger to work and use the Buck-boost circuit to charge the battery, or directly stop charging the battery. If charging the battery is stopped, when the battery temperature drops, it can switch to the Buck-boost charger to work and use the Buck-boost circuit to charge the battery.

[0049] Here, it should be noted that charging the battery using the charge pump and charging the battery using the Buck-boost circuit both belong to fast charging. The charge pump and the Buck-boost circuit have higher charging efficiency and charge faster. Here, the process of charging the battery through the charge pump is described as fast charging.

[0050] In this way, for the battery temperature detected in real time, when the battery temperature exceeds the set value, the charging method is adjusted in time, and a charging circuit with relatively low charging efficiency is used to charge the battery or the charging is stopped. It effectively reduces the impact of battery overheating on the life of the battery or the electronic device, and effectively avoids the safety problems caused by battery overheating.

[0051] When the power adapter is unplugged, charging the battery is stopped.

[0052] Figure 4The figure shows a schematic diagram of the implementation process of the charging control method according to an embodiment of the present application.

[0053] Referring to Figure 4 , the charging control method according to an embodiment of the present application at least includes the following processes: Operation 401, detecting the adapter parameters of the power adapter connected to the charging control circuit. Here, the charging control circuit includes a first charging circuit 101 and a second charging circuit 102 connected in parallel between the power adapter and the battery; Operation 402, controlling the power adapter to select to charge the battery through the first charging circuit 101 or the second charging circuit 102 according to the adapter parameters.

[0054] Figure 4 For the specific implementation methods of Operations 401-402 in the shown charging control method, reference can be made to the description of the charging control circuit in the above Figures 1-3 and will not be elaborated here.

[0055] In the charging control circuit, charging control method, and electronic device provided by an embodiment of the present application, the charging control circuit includes a control module, a first charging circuit 101, and a second charging circuit 102. Among them, after the first charging circuit 101 and the second charging circuit 102 are connected in parallel, they are connected in series between the control module and the battery. The control module is used to detect the adapter parameters of the power adapter connected to the charging control circuit and control the power adapter to select to charge the battery through the first charging circuit 101 or the second charging circuit 102 according to the adapter parameters. In this way, the first charging circuit 101 and the first charging circuit 101 can adapt to different types of power adapters. When the power adapter supports variable voltage, a charging circuit with a fast charging function can be selected, and when the power adapter does not support variable voltage, a charging circuit with a buck-boost function can be selected. While ensuring that the charging control circuit can be used in matching with the power adapter, the charging efficiency is greatly improved.

[0056] Based on the above embodiment, in order to further improve the efficiency of the electronic device, the present application also improves the voltage converter configured at the system voltage VSYS output from the above charging control circuit to the electronic device. As Figure 5 shown, the figure shows a schematic diagram of the principle of a voltage conversion circuit provided by another embodiment of the present application for further improving the power conversion efficiency of the electronic device. Among them, Figure 5 Figure (a) in Figure 5Figure (b) shows a schematic diagram of the principle of the voltage conversion circuit in this application. In Figure (b), compared with the voltage conversion circuit of the prior art in Figure (a), the voltage conversion circuit of this application adds two groups of MOSFETs and corresponding selection circuits, forming three groups of MOSFET branches: light-load MOSFET, medium-load MOSFET, and heavy-load MOSFET. The controller (PWM Control&Protect Logic) can select one of the light-load MOSFET, medium-load MOSFET, and heavy-load MOSFET according to the magnitude of the load current. The input (VIN) of the voltage converter can be connected to the output of the above charging control circuit. For example: Figure 2 the system voltage (VSYS) in

[0057] For example, if the voltage converter supports a load with a current of 0 - 9A, then in the light-load case where the load current is 0A to 3A, the light-load MOSFET can be controlled to conduct, and the medium-load MOSFET and heavy-load MOSFET are turned off. In the medium-load case where the load current is 3A to 6A, the medium-load MOSFET can be controlled to conduct, and the light-load MOSFET and heavy-load MOSFET are turned off. In the heavy-load case where the load current is 6A to 9A, the heavy-load MOSFET can be controlled to conduct, and the light-load MOSFET and medium-load MOSFET are turned off.

[0058] Figure 6 shows a comparison diagram of the conversion efficiency curves of the electronic device before and after applying the voltage conversion circuit of another embodiment of this application. Among them, in the case of the voltage conversion circuit of this application in Figure (b), the voltage conversion efficiency curve is close to curve 501, while when using the voltage conversion circuit of the prior art in Figure (a) in Figure 5 , the voltage conversion efficiency is curve 502. Obviously, for any load condition from light load to heavy load, the voltage conversion efficiency shown in curve 501 is higher than that in curve 502. Thus, applying the voltage conversion circuit of this application in Figure (b) in Figure 5 can significantly improve the voltage conversion efficiency, especially for light-load and heavy-load conditions. Figure 5 In the case of the voltage conversion circuit of this application in Figure (b) in

[0059] Similarly, based on the above charging control method, an embodiment of this application further provides a computer-readable storage medium. The computer-readable storage medium stores a program, and when the program is executed by a processor, the processor is caused to perform at least the following operation steps: Operation 401, detecting the adapter parameters of the power adapter connected to the charging control circuit, where the charging control circuit includes a first charging circuit 101 and a second charging circuit 102 connected in parallel between the power adapter and the battery; Operation 402, controlling the power adapter to select to charge the battery through the first charging circuit 101 or the second charging circuit 102 according to the adapter parameters.

[0060] Furthermore, based on the above-mentioned charging control circuit, an embodiment of the present application further provides an electronic device, which includes the above-mentioned charging control circuit.

[0061] It should be noted here that the above description of the embodiments of the charging control method and the electronic device is similar to the description of the embodiments of the charging control circuit shown above, and has beneficial effects similar to those of the embodiments of the charging control circuit shown above. Therefore, it will not be elaborated here. For the technical details not disclosed in the embodiments of the charging control method and the electronic device of the present application, please refer to the description of the embodiments of the charging control circuit shown above in the present application for understanding. For the sake of saving space, it will not be elaborated here. Figures 1 to 3 shown above Figures 1 to 3 shown above Figures 1 to 3 shown above

[0062] It should be noted that in this article, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of additional identical elements in the process, method, article or device including that element.

[0063] In several embodiments provided by the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. The device embodiments described above are only illustrative. For example, the division of units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined, or can be integrated into another system, or some features can be ignored, or not executed. In addition, the coupling, direct coupling, or communication connection between the components shown or discussed with each other can be through some interfaces. The indirect coupling or communication connection of devices or units can be electrical, mechanical or other forms.

[0064] The units described above as separate components may or may not be physically separated, and the components shown as units may or may not be physical units; they can be located in one place or distributed to multiple network units; some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0065] In addition, in each embodiment of the present application, each functional unit can be fully integrated into one processing unit, or each unit can be separately regarded as one unit, or two or more units can be integrated into one unit; the above integrated unit can be implemented in the form of hardware, or in the form of a combination of hardware and software functional units.

[0066] Those of ordinary skill in the art can understand that all or part of the steps of implementing the above method embodiments can be completed by hardware related to program instructions. The foregoing program can be stored in a computer-readable storage medium. When the program is executed, it performs the steps including the above method embodiments; and the foregoing storage medium includes: removable storage devices, read-only memory (ROM), magnetic disks, or optical disks and other various media that can store program codes.

[0067] Alternatively, if the above integrated unit of the present application is implemented in the form of a software functional module and sold or used as an independent product, it can also be stored in a computer-readable storage medium. Based on such an understanding, the technical solution of the embodiments of the present application, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the methods of the various embodiments of the present application. And the foregoing storage medium includes: removable storage devices, ROM, magnetic disks, or optical disks and other various media that can store program codes.

[0068] The above are only the specific implementation manners of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present application, and all should be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A charging control circuit, the charging control circuit comprising: Control module, first charging circuit, second charging circuit; After the first charging circuit and the second charging circuit are connected in parallel, they are connected in series between the control module and the battery; The control module is configured to detect adapter parameters of a power adapter connected to the charging control circuit, and according to the adapter parameters, control the power adapter to select to charge the battery through the first charging circuit or the second charging circuit, where the adapter parameters are used to characterize whether the power adapter has a programmable voltage module; If the adapter parameters indicate that the power adapter has a programmable voltage module, control the power adapter to charge the battery through the first charging circuit; If the adapter parameters indicate that the power adapter does not have a programmable voltage module, control the power adapter to charge the battery through the second charging circuit; The first voltage ratio of the input voltage to the output voltage of the first charging circuit is a fixed value; The second voltage ratio of the input voltage to the output voltage of the second charging circuit is a variable voltage ratio.

2. The charging control circuit according to claim 1, wherein the first charging circuit includes a switch and a first charging branch.

3. The charging control circuit according to claim 2, wherein the first charging circuit includes a single switched-capacitor converter unit or multiple parallel switched-capacitor converter units.

4. The charging control circuit according to claim 1, wherein the second charging circuit comprises: A second charging branch with buck-boost function or multiple parallel second charging branches with buck-boost function.

5. The charging control circuit according to claim 1, wherein the control module includes: A receiving unit, configured to receive the power value of the battery; A first control unit, configured to control the power adapter to select to charge the battery through the first charging circuit when the adapter parameters indicate that the power adapter has a programmable voltage module and the power value is greater than or equal to a first set power value.

6. The charging control circuit according to claim 5, wherein the control module includes: A second control unit, configured to control the power adapter to select to charge the battery through the second charging circuit when the adapter parameters indicate that the power adapter has a programmable voltage module and the power value is greater than or equal to a second set power value; Wherein, the second set power value is greater than the first set power value.

7. The charging control circuit according to claim 5, wherein the control module includes: A third control unit, configured to control the power adapter to select to charge the battery through the second charging circuit when the adapter parameters indicate that the power adapter does not have a programmable voltage module.

8. A charging control method, the method includes: Detecting adapter parameters of a power adapter connected to a charging control circuit, where the charging control circuit includes a first charging circuit and a second charging circuit connected in parallel between the power adapter and the battery, and the adapter parameters are used to characterize whether the power adapter has a programmable voltage module; Control the power adapter to select to charge the battery through the first charging circuit or the second charging circuit according to the adapter parameter; If the adapter parameter indicates that the power adapter has a programmable voltage module, control the power adapter to charge the battery through the first charging circuit; if the adapter parameter indicates that the power adapter does not have a programmable voltage module, control the power adapter to charge the battery through the second charging circuit; Wherein, a first voltage ratio of an input voltage to an output voltage of the first charging circuit is a fixed value, and a second voltage ratio of an input voltage to an output voltage of the second charging circuit is a variable voltage ratio.

9. An electronic device, the electronic device includes the charging control circuit according to any one of claims 1-7.

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