Intelligent adjustment charging circuit, control method, equipment and storage medium

Abstract

The embodiment of the invention relates to an intelligent adjustment charging circuit, a control method, equipment and a storage medium. The circuit comprises a slow charging module, a fast charging module, a switch module, a rechargeable battery module and a main control module. The switch module is used for changing an internal conduction state when the main control module detects that the slow charging module is switched to the fast charging module or the fast charging module is switched to the slow charging module; the rechargeable battery module is used for charging the rechargeable battery module through the slow charging module or the quick charging module when the main control module detects that the charging equipment reaches the charging condition, and the rechargeable battery module is contained in the charging equipment. A charging mode is determined after the main control module detects the equipment temperature and the rechargeable battery temperature, and slow charging or fast charging is selected by controlling the switch module, so that the purpose of only charging is achieved; therefore, the technical effects of improving the charging efficiency and achieving rapid charging can be achieved.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of device charging control, and in particular to an intelligently regulated charging circuit, control method, device, and storage medium. Background Art

[0002] As the types of electronic products continue to increase, the requirements for charging efficiency of electronic products are getting higher and higher. The faster the charging, the better the user experience. Currently, the charging modes of electronic products are generally divided into normal charging and fast charging modes.

[0003] However, the normal charging mode will increase the charging time and affect the user experience of electronic products; and only using the fast charging mode will cause the electronic product battery to overheat after a long time and damage other devices; the existing method of combining normal charging and fast charging only selects one charging method and does not change it, which has the same effect as the original normal charging or fast charging, and does not improve the charging efficiency or solve the problem of device overheating. Summary of the invention

[0004] In view of this, in order to solve the technical problem of low charging efficiency of the above-mentioned equipment, the embodiments of the present application provide an intelligently regulated charging circuit, control method, device and storage medium.

[0005] In a first aspect, an embodiment of the present application provides a charging circuit with intelligent regulation, comprising:

[0006] Slow charging module, fast charging module, switch module, rechargeable battery module and main control module;

[0007] The first output end of the slow charging module is connected to the first input end of the fast charging module and the first input end of the switch module, the second output end of the slow charging module is connected to the first input end of the main control module, the input end of the slow charging module is connected to the first output end of the main control module, and the slow charging module is used to charge the rechargeable battery module when the main control module detects that the rechargeable battery module reaches a first set condition;

[0008] The second input end of the fast charging module is connected to the second output end of the main control module, the third input end of the fast charging module is connected to the first output end of the switch module and the first output end of the rechargeable battery module, the output end of the fast charging module is connected to the second input end of the switch module, and the fast charging module is used to charge the rechargeable battery module when the main control module detects that the rechargeable battery module reaches a second set condition, and the first set condition and the second set condition are the same or different;

[0009] The third input end of the switch module is connected to the third output end of the main control module, the second output end of the switch module is connected to the first input end of the rechargeable battery module, the third output end of the switch module is connected to the second input end of the main control module, and the switch module is used to change the internal conduction state when the main control module detects that the charging is switched from the slow charging module to the fast charging module or from the fast charging module to the slow charging module;

[0010] The second output end of the charging battery module is connected to the third input end of the main control module. The charging battery module is used to charge the charging battery module through the slow charging module or the fast charging module when the main control module detects that the charging device meets the charging conditions. The charging device contains the charging battery module.

[0011] In a possible implementation, the main control module includes: a main control chip and a device temperature measurement unit;

[0012] The first output end of the main control chip is connected to the first input end of the slow charging module as the first output end of the main control module, the second output end of the main control chip is connected to the second input end of the fast charging module as the second output end of the main control module, the third output end of the main control chip is connected to the third input end of the switch module as the third output end of the main control module, the first input end of the main control chip is connected to the second output end of the slow charging module as the first input end of the main control module, the second input end of the main control chip is connected to the third output end of the switch module as the second input end of the main control module, the third input end of the main control chip is connected to the second output end of the rechargeable battery module as the third input end of the main control module, and the fourth input end of the main control chip is connected to the device temperature measurement unit, and the device temperature measurement unit is used to collect current temperature data of the device through the main control chip.

[0013] In a possible implementation, the device temperature measurement unit includes: a first device, a first thermistor and a first impedance;

[0014] The first device is inductively connected to the first thermistor, and a rechargeable battery module is embedded in the first device;

[0015] One end of the first thermal impedance is connected to the first ground terminal, and the other end of the first thermal impedance is connected to one end of the first impedance;

[0016] The other end of the first impedance is connected to the internal power supply end.

[0017] In a possible implementation, the slow charging module includes: a DC source, a first inductor, a first capacitor, a first transistor, a first diode, a second impedance, a third impedance, and a second capacitor;

[0018] The negative input end of the DC source is connected to the second ground end, one end of the first capacitor, the first end of the first transistor, one end of the third impedance and one end of the second capacitor, and the positive output end of the DC source is connected to the other end of the first capacitor and one end of the first inductor, and the DC source is used to supply power to the internal components of the slow charging module;

[0019] The other end of the first inductor is connected to the reverse input end of the first diode and the second end of the first transistor;

[0020] The control end of the first transistor is connected to the first output end of the main control module as the first input end of the slow charging module;

[0021] The forward output end of the first diode is connected as the first output end of the slow charging module and one end of the second impedance, the other end of the second capacitor, the first input end of the fast charging module, and the first input end of the switch module to the first node;

[0022] The other end of the second impedance serves as the second output end of the slow charging module and is connected to the other end of the third impedance and the first input end of the main control module.

[0023] In a possible implementation, the fast charging module includes: an operational amplifier, a first switch tube, a second switch tube, a third switch tube, a second diode and a fourth impedance;

[0024] The positive input end of the operational amplifier is connected to the second output end of the main control module as the second input end of the fast charging module, the negative input end of the operational amplifier is connected to the first end of the first switch tube and one end of the fourth impedance, the output end of the operational amplifier is connected to the control end of the first switch tube, and the operational amplifier is used to change the output signal of the operational amplifier after receiving the electrical signal input by the main control module;

[0025] The second end of the first switch tube is connected to the second end of the second switch tube, the control end of the second switch tube and the control end of the third switch tube;

[0026] The first end of the second switch tube is connected as the first input end of the fast charging module to the first end of the third switch tube, the first output end of the slow charging module and the first input end of the switch module;

[0027] The second end of the third switch tube is connected to the reverse input end of the second diode;

[0028] The forward output end of the second diode is connected to the second input end of the switch module as the output end of the fast charging module;

[0029] The other end of the fourth impedance serves as the third input end of the fast charging module and is connected to the first output end of the switch module, the first output end of the charging battery module and the second ground end.

[0030] In a possible implementation manner, the switch module includes: a fourth switch tube, a fifth switch tube, a third diode, a fifth impedance, a sixth impedance, a seventh impedance, an eighth impedance, a ninth impedance, and a third capacitor;

[0031] The first end of the fourth switch tube is connected to the first output end of the slow charging module, the first input end of the fast charging module and one end of the seventh impedance as the first input end of the switch module, the second end of the fourth switch tube is connected to the negative input end of the third diode, and the control end of the fourth switch tube is connected to the other end of the seventh impedance and one end of the eighth impedance;

[0032] The forward output end of the third diode is connected to the first output end of the fast charging module as the second input end of the switch module, and the forward output end of the third diode is also connected to one end of the fifth impedance and the first input end of the rechargeable battery module as the second output end of the switch module;

[0033] The other end of the fifth impedance is connected to one end of the sixth impedance and the second input end of the main control module as the third output end of the switch module;

[0034] The other end of the sixth impedance is connected to the third input end of the fast charging module and the first output end of the rechargeable battery module as the first output end of the switch module;

[0035] The other end of the eighth impedance is connected to the second end of the fifth switch tube;

[0036] The first end of the fifth switch tube is connected to one end of the third capacitor and the third ground end, the control end of the fifth switch tube is connected to the other end of the third capacitor and one end of the ninth impedance, and the fifth switch tube is used to receive the square wave signal input by the main control module, and change the conduction frequency of the third switch tube according to the square wave signal;

[0037] The other end of the ninth impedance is connected to the third output end of the main control module as the third input end of the switch module.

[0038] In a possible implementation, the rechargeable battery module includes: a rechargeable battery pack, a second thermistor and a tenth resistor;

[0039] The positive charging end of the rechargeable battery pack is connected to the second output end of the switch module as the input end of the rechargeable battery module, and the negative discharging end of the rechargeable battery pack is connected to the first output end of the switch module, the third input end of the fast charging module and one end of the second thermistor as the first output end of the rechargeable battery module;

[0040] The other end of the second thermistor is connected to the third input end of the main control module and one end of the tenth impedance as the second output end of the rechargeable battery module;

[0041] The other end of the tenth impedance is connected to the internal power supply end.

[0042] In a second aspect, an embodiment of the present application provides a control method for a charging circuit, which is applied to the intelligently regulated charging circuit as described in any one of the first aspects, including:

[0043] Acquire a first temperature of a rechargeable battery module and acquire a second temperature of a main control module, wherein the first temperature represents a detected temperature of a first designated area in the rechargeable battery module and the second temperature represents a detected temperature of a second designated area in the main control module;

[0044] determining a target charging mode according to the first temperature and the second temperature;

[0045] Determining a switch mode of a switch module according to the target charging mode, wherein the switch mode represents a conduction state in the switch module;

[0046] Charging control of the charging battery module is performed based on the target switching pattern.

[0047] In a possible implementation, the obtaining of the first temperature of the rechargeable battery module and the obtaining of the second temperature of the main control module include:

[0048] Acquiring a first temperature of a rechargeable battery pack in the rechargeable battery module through a first thermistor;

[0049] The second temperature of the first device in the device temperature measuring unit is obtained through the second thermistor.

[0050] In a possible implementation manner, determining the target charging mode according to the first temperature and the second temperature includes:

[0051] Acquire a third temperature of the first device corresponding to the set time interval, and determine a difference temperature between the third temperature and the second temperature, where the difference temperature is a temperature change value between the third temperature and the second temperature;

[0052] Determine whether the first temperature is within a set first threshold range, and determine whether the difference temperature is within a set second threshold range, to obtain a determination result;

[0053] A target charging mode of the rechargeable battery module is determined according to the determination result.

[0054] In a possible implementation manner, the determining whether the first temperature is within a set first threshold range, and determining whether the temperature difference is within a set second threshold range, to obtain a determination result, includes:

[0055] When the temperature difference is within a second threshold range, the judgment result is a first judgment result;

[0056] When the first temperature is within a first threshold range and the difference temperature exceeds the second threshold range, the judgment result is a second judgment result;

[0057] When the first temperature exceeds the first threshold range and the difference temperature exceeds the second threshold range, the judgment result is a third judgment result.

[0058] In a possible implementation manner, determining the target charging mode of the rechargeable battery module according to the judgment result includes:

[0059] When the judgment result is the first judgment result, determining that the target charging mode is the first fast charging mode;

[0060] When the judgment result is the second judgment result, determining that the target charging mode is the second fast charging mode, and the parameters included in the first fast charging mode and the second fast charging mode are the same or different;

[0061] When the judgment result is the third judgment result, it is determined that the target charging mode is a slow charging mode.

[0062] In a possible implementation manner, determining the switching mode of the switching module according to the target charging mode includes:

[0063] When the target charging mode is the first fast charging mode or the second fast charging mode, determining that the switch module is in a first switch mode, the first switch mode indicating that the switch module is in a disconnected state;

[0064] When the target charging mode is the slow charging mode, it is determined that the switch module is in a second switch mode, and the second switch mode indicates that the switch module is in a conducting state.

[0065] In a possible implementation manner, the performing charging control on the rechargeable battery module based on the target switching mode includes:

[0066] When the target switch mode is the first switch mode, controlling the fifth switch tube in the switch module to remain in an off state, so that the slow charge module performs charging control on the rechargeable battery;

[0067] When the target switch mode is the second switch mode, the fifth switch tube in the switch module is controlled to remain in an off state, so that the slow charging module performs charging control on the rechargeable battery.

[0068] In a possible implementation, the method further includes:

[0069] Adjusting the conduction time and frequency of the first transistor in the slow charging module to change the output voltage of the slow charging module;

[0070] or,

[0071] The input pulse signal frequency of the operational amplifier in the fast charging module is adjusted to change the output current of the fast charging module.

[0072] In a third aspect, an embodiment of the present application provides a control device, comprising: a processor and a memory, wherein the processor is used to execute a control program for human body impedance detection stored in the memory to implement any control method of the charging circuit described in the second aspect.

[0073] In a fourth aspect, an embodiment of the present application provides a storage medium, wherein the storage medium stores one or more programs, and the one or more programs can be executed by one or more processors to implement any of the charging circuit control methods described in the second aspect.

[0074] The intelligent regulating charging circuit provided in the embodiment of the present application is provided by setting a slow charging module, a fast charging module, a switch module, a charging battery module and a main control module; the first output end of the slow charging module is connected to the first input end of the fast charging module and the first input end of the switch module, the second output end of the slow charging module is connected to the first input end of the main control module, the input end of the slow charging module is connected to the first output end of the main control module, and the slow charging module is used to charge the charging battery module when the main control module detects that the charging battery module reaches a first set condition; the second input end of the fast charging module is connected to the second output end of the main control module, the third input end of the fast charging module is connected to the first output end of the switch module and the first output end of the charging battery module, the output end of the fast charging module is connected to the second input end of the switch module, and the fast charging module is used to charge the charging battery module when the main control module detects that the charging battery module reaches a first set condition When the charging battery module reaches the second set condition, the charging battery module is charged, and the first set condition and the second set condition can be the same or different; the third input end of the switch module is connected to the third output end of the main control module, the second output end of the switch module is connected to the first input end of the charging battery module, and the third output end of the switch module is connected to the second input end of the main control module. The switch module is used to change the internal conduction state when the main control module detects that the charging device is switched from the slow charging module to the fast charging module or from the fast charging module to the slow charging module; the second output end of the charging battery module is connected to the third input end of the main control module, and the charging battery module is used to charge the charging battery module through the slow charging module or the fast charging module when the main control module detects that the charging device reaches the charging condition, and the charging device contains a charging battery module. The main control module determines the charging mode after detecting the device temperature and the charging battery temperature, and controls the switch module to select slow charging or fast charging to achieve the purpose of only charging; this solution can improve the charging efficiency and achieve the technical effect of fast charging. BRIEF DESCRIPTION OF THE DRAWINGS

[0075] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0076] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0077] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0078] Figure 1A schematic diagram of the structure of an intelligent regulating charging circuit provided in an embodiment of the present application;

[0079] Figure 2 A schematic diagram of the structure of another intelligent regulating charging circuit provided in an embodiment of the present application;

[0080] Figure 3 A flow chart of a control method for a charging circuit provided in an embodiment of the present application;

[0081] Figure 4 A flow chart of another method for controlling a charging circuit provided in an embodiment of the present application;

[0082] Figure 5 A flowchart of another method for controlling a charging circuit provided in an embodiment of the present application;

[0083] Figure 6 A schematic diagram of the structure of a control device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0084] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0085] The terms "including" and "having" in the embodiments of the present application are used to express an open-ended inclusive meaning, and mean that in addition to the listed elements / components / etc., there may be additional elements / components / etc.; the terms "first" and "second" etc. are used only as labels and are not intended to limit the quantity of their objects. In addition, the different elements and regions in the drawings are only schematically shown, so the present application is not limited to the sizes or distances shown in the drawings.

[0086] With the continuous innovation of smart devices, smart wearable devices and human embedded devices are constantly developing. Whether it is the charging of devices in production and life or the charging process of human embedded devices in the human body, they will be affected by the temperature of the device. Too high temperature will affect the life of the device on the one hand, and the experience of the device embedder on the other hand. In some technologies, the problem of low charging efficiency is alleviated by switching between normal charging and fast charging. However, the problem of high device temperature affecting charging efficiency during charging cannot be solved.

[0087] In response to the above problems, the present application proposes a circuit that can only adjust the charging circuit, which pre-detects the temperature of the device and the temperature of the rechargeable battery through a main control module. When the temperature of the device and the temperature of the rechargeable battery meet the set fast charging requirements, the fast charging module is selected to be connected through a switch module, and the rechargeable battery module is charged by the fast charging module; when the temperature of the device and the temperature of the rechargeable battery meet the set slow charging requirements, the slow charging module is selected to be connected through a switch module, and the rechargeable battery module is charged by the slow charging module. The detected temperature of the device and the rechargeable battery are used as reference conditions for switching the charging mode. At the same time, after selecting the charging mode, the charging efficiency is improved by adjusting the charging current.

[0088] To facilitate understanding of the embodiments of the present application, further explanation will be given below with reference to specific embodiments in conjunction with the accompanying drawings. The embodiments do not constitute a limitation on the embodiments of the present application.

[0089] Figure 1 A schematic diagram of a smart charging circuit according to an embodiment of the present application. Figure 1 The diagram provided shows that the structure of the intelligent charging regulation circuit specifically includes:

[0090] A slow charging module 10 , a fast charging module 20 , a switch module 30 , a rechargeable battery module 40 and a main control module 50 .

[0091] The first output end of the slow charging module 10 is connected to the first input end of the fast charging module 20 and the first input end of the switch module 30, the second output end of the slow charging module 10 is connected to the first input end of the main control module 50, and the input end of the slow charging module 10 is connected to the first output end of the main control module 50. The slow charging module 10 is used to charge the charging battery module 40 when the main control module 50 detects that the charging battery module 40 reaches a first set condition.

[0092] The second input end of the fast charging module 20 is connected to the second output end of the main control module 50, the third input end of the fast charging module 20 is connected to the first output end of the switch module 30 and the first output end of the rechargeable battery module 40, the output end of the fast charging module 20 is connected to the second input end of the switch module 30, and the fast charging module 20 is used to charge the rechargeable battery module 40 when the main control module 50 detects that the rechargeable battery module 40 reaches a second set condition, and the first set condition and the second set condition are the same or different.

[0093] The third input terminal of the switch module 30 is connected to the third output terminal of the main control module 50, the second output terminal of the switch module 30 is connected to the first input terminal of the rechargeable battery module 40, and the third output terminal of the switch module 30 is connected to the second input terminal of the main control module 50. The switch module 30 is used to change the internal conduction state when the main control module 50 detects charging switching from the slow charging module 10 to the fast charging module 20 or from the fast charging module 20 to the slow charging module 10.

[0094] The second output end of the charging battery module 40 is connected to the third input end of the main control module 50. The charging battery module 40 is used to charge the charging battery module 40 through the slow charging module 10 or the fast charging module 20 when the main control module 50 detects that the charging device meets the charging conditions. The charging device contains the charging battery module 40.

[0095] Exemplarily, the first setting condition can be understood as a situation where the current charging demand of the rechargeable battery module is reduced, or the charging capacity does not affect the power supply demand of the rechargeable battery module; or when the device temperature and the internal temperature of the rechargeable battery module exceed the set temperature, in order to reduce the adverse impact of temperature on the rechargeable battery module and the device and the user experience of the embedded device as the first setting condition; the second setting condition can be understood as a situation where the device temperature and the temperature of the rechargeable battery module are within the set temperature range; or, when it is detected that the charging capacity of the rechargeable battery module is insufficient to power the external excitation source as the second setting condition.

[0096] In a possible example scenario, the temperature of the device is detected and the internal temperature of the charging battery module 40 is obtained through the main control module 50. When the charging capacity of the battery in the charging battery module 40 is lower than the set value (for example, 20%), it is determined that the charging battery module 40 needs to turn on the fast charging mode, and the main control module 50 controls the switch module 30 to be selectively turned on, and then the fast charging module 20 is connected with the charging battery module 40 after the switch module 30 is turned on, so as to realize fast charging of the charging battery module 40; during the fast charging process, the charging capacity in the charging battery module 40 is detected in real time. When the charging capacity has not reached the set value, but the device temperature exceeds the set value, as long as the internal temperature of the charging battery module 40 is within the set range, the fast charging mode is still maintained; when the device temperature and the internal temperature of the charging battery module 40 both exceed the set range, in order to protect the device from damage and to ensure that there is no abnormal induction to the user, it is necessary to switch the fast charging mode to the slow charging mode. The switch module 30 is controlled by the main control module 50 to select conduction, and the connection between the fast charging module 20 and the rechargeable battery module 40 is cut off by the switch module 30. At the same time, the slow charging module 10 is connected to the rechargeable battery module 40 through the switch module 30 to realize the slow charging mode. In the slow charging mode, the charging current or voltage is reduced to achieve the purpose of reducing the temperature. At the same time, when the main control module 50 detects the device temperature and the internal temperature of the rechargeable battery module 40 in real time, it is judged again whether the device temperature and the internal temperature of the rechargeable battery module 40 exceed the set range. When it is detected that the device temperature and the internal temperature of the rechargeable battery module 40 are both within the set temperature range, the slow charging module 10 continues to charge the rechargeable battery module 40; when it is detected that the device temperature and the internal temperature of the rechargeable battery module 40 are both beyond the set temperature range, in order to reduce the device temperature, it is necessary to reduce the current in the charging circuit, and the frequency of the square wave signal output to the slow charging module 10 is reduced by the main control module 50, so as to achieve the purpose of reducing the output current of the slow charging module 10. After the output current is reduced, the temperature generated during charging is reduced, so as to achieve the purpose of intelligent temperature regulation. At the same time, while realizing intelligent charging, the charging current is adjusted by adjusting the charging mode to improve the charging efficiency.

[0097] The present application proposes an intelligent regulating charging circuit, which comprises a slow charging module, a fast charging module, a switch module, a rechargeable battery module and a main control module; the first output end of the slow charging module is connected to the first input end of the fast charging module and the first input end of the switch module, the second output end of the slow charging module is connected to the first input end of the main control module, the input end of the slow charging module is connected to the first output end of the main control module, and the slow charging module is used to charge the rechargeable battery module when the main control module detects that the rechargeable battery module reaches a first set condition; the second input end of the fast charging module is connected to the second output end of the main control module, the third input end of the fast charging module is connected to the first output end of the switch module and the first output end of the rechargeable battery module, the output end of the fast charging module is connected to the second input end of the switch module, and the fast charging module is used to charge the rechargeable battery module when the main control module detects that the rechargeable battery module reaches a first set condition When the charging battery module reaches the second set condition, the charging battery module is charged, and the first set condition and the second set condition can be the same or different; the third input end of the switch module is connected to the third output end of the main control module, the second output end of the switch module is connected to the first input end of the charging battery module, and the third output end of the switch module is connected to the second input end of the main control module. The switch module is used to change the internal conduction state when the main control module detects that the charging device is switched from the slow charging module to the fast charging module or from the fast charging module to the slow charging module; the second output end of the charging battery module is connected to the third input end of the main control module, and the charging battery module is used to charge the charging battery module through the slow charging module or the fast charging module when the main control module detects that the charging device reaches the charging condition, and the charging device contains the charging battery module. The main control module determines the charging mode after detecting the device temperature and the charging battery temperature, and controls the switch module to select slow charging or fast charging to achieve the purpose of only charging; this solution can improve the charging efficiency and achieve the technical effect of fast charging.

[0098] Figure 2 A schematic diagram of the structure of another intelligent regulating charging circuit provided in an embodiment of the present application. Figure 2 This is introduced based on the previous embodiment. Figure 2 The diagram provided shows that the structure of the intelligent charging regulation circuit specifically includes:

[0099] A slow charging module 10 , a fast charging module 20 , a switch module 30 , a rechargeable battery module 40 and a main control module 50 .

[0100] according to Figure 2 According to the provided diagram, the main control module 50 in the intelligent regulation charging circuit includes: a main control chip MCU and a device temperature measurement unit 51.

[0101] The first output end of the main control chip MCU is connected to the first input end of the slow charging module 10 as the first output end of the main control module 50, the second output end of the main control chip MCU is connected to the second input end of the fast charging module 20 as the second output end of the main control module 50, the third output end of the main control chip MCU is connected to the third input end of the switch module 30 as the third output end of the main control module 50, the first input end of the main control chip MCU is connected to the second output end of the slow charging module 10 as the first input end of the main control module 50, the second input end of the main control chip MCU is connected to the third output end of the switch module 30 as the second input end of the main control module 50, the third input end of the main control chip MCU is connected to the second output end of the rechargeable battery module 40 as the third input end of the main control module 50, and the fourth input end of the main control chip MCU is connected to the device temperature measurement unit 51, and the device temperature measurement unit 51 is used to collect the current temperature data of the device through the main control chip MCU.

[0102] Exemplarily, the main control module 50 includes a main control chip MCU and a device temperature measurement unit 51, which is connected to other modules through the main control chip to control the status of each module. The device temperature measurement unit 51 can detect the temperature of the device (such as human embedded wearable device, production equipment, etc.) in real time, and feed back the monitored temperature to the main control chip MCU. At the same time, the rechargeable battery module detects the internal temperature in real time and feeds back the measured internal temperature to the main control chip MCU. The main control chip MCU determines whether the detected temperature (or temperature difference) of the current device and the internal temperature of the rechargeable battery module exceed the set temperature range, as a basis for judging whether the device is overheated or the rechargeable battery is overheated in the current charging environment, and as a basis for judging the adjustment of the charging mode.

[0103] according to Figure 2 According to the provided diagram, the device temperature measurement unit 51 in the intelligent regulation charging circuit includes: a first device A, a first thermistor NT1 and a first resistor R1.

[0104] The first device A is inductively connected to the first thermistor VT1, and a rechargeable battery module 40 (not shown in the drawings) is embedded inside the first device A.

[0105] One end of the first thermal impedance NT1 is connected to the first ground end, and the other end of the first thermal impedance NT1 is connected to one end of the first resistor R1.

[0106] The other end of the first impedance R1 is connected to the internal power supply terminal VCC.

[0107] For example, the voltage of the internal power supply terminal VCC can be set to 3.3V or 5V according to requirements, which is not limited in the present application.

[0108] Exemplarily, the device temperature measurement unit is used to detect the temperature of the device in real time. It is inductively connected to the first device through the first thermistor NT1, and under the pull-up effect of the first impedance, the sensed inductance is fed back to the main control chip MCU, and the main control chip MCU analyzes the partial voltage of the first thermistor NT1, and then calculates the current temperature of the first device, and then determines whether the temperature of the first device exceeds the set full temperature range.

[0109] according to Figure 2 According to the diagram provided, the slow charging module 10 in the intelligent regulation charging circuit includes: a direct current source DC, a first inductor L1, a first capacitor C1, a first transistor Q1, a first diode D1, a second impedance R2, a third impedance R3 and a second capacitor C2.

[0110] The negative input end of the direct current source DC is connected to the second ground end, one end of the first capacitor C1, the first end of the first transistor Q1, one end of the third impedance R3 and one end of the second capacitor C2. The positive output end of the direct current source DC is connected to the other end of the first capacitor C1 and one end of the first inductor L1. The direct current source DC is used to power the internal devices of the slow charging module 10.

[0111] The other end of the first inductor L1 is connected to the reverse input end of the first diode D1 and the second end of the first transistor Q1 .

[0112] The control end of the first transistor Q1 is connected to the first output end of the main control module 50 as the first input end of the slow charging module 10 .

[0113] The forward output end of the first diode D1 is connected as the first output end of the slow charging module 10 and one end of the second impedance R2, the other end of the second capacitor C2, the first input end of the fast charging module 20, and the first input end of the switch module 30 to the first node V0.

[0114] The other end of the second impedance R2 serves as the second output end of the slow charging module 10 and is connected to the other end of the third impedance R3 and the first input end of the main control module 50 .

[0115] Exemplarily, the first transistor can be understood as a switch tube such as a MOS tube or an IGBT or a triode. The first end of the first transistor mentioned here can be understood as the source of the MOS tube, the second end mentioned here can be understood as the drain of the MOS tube, and the control end of the first transistor mentioned here can be understood as the gate of the MOS tube.

[0116] In a possible example scenario, the main control module 50 detects the device temperature and the internal temperature of the charging battery module 40, and determines that the current charging battery module 40 is in slow charging mode after comparative analysis. The switch module 30 is controlled to be turned on internally, and the slow charging module 10 is connected to the charging battery module 40. The DC source DC is used to store energy for the first inductor L1, and the first capacitor is used as the input end to store energy. The unidirectional conductivity of the slow charging module is controlled by the first diode. The main control module 50 controls the size and frequency of the square wave signal input to the control end of the first transistor Q1, thereby affecting the conduction frequency and conduction duration of the first transistor Q1 within the cycle, so as to achieve the purpose of increasing the voltage of the first node V0, and the second capacitor is used as the output end to store energy, and the slow charging module 10 outputs the voltage of the first node V0 to charge the charging battery module 40. At the same time, the main control module 50 detects the potential between the second impedance R2 and the third impedance R3 in real time, and obtains the current and voltage of the current slow charging module 10 through analysis and calculation, thereby achieving the purpose of monitoring the current of the slow charging module 10.

[0117] according to Figure 2 According to the diagram provided, the fast charging module 20 in the intelligent regulation charging circuit includes: an operational amplifier U1, a first switch tube T1, a second switch tube T2, a third switch tube T3, a second diode D2 and a fourth impedance R4.

[0118] The positive input terminal of the operational amplifier U1 is connected to the second output terminal of the main control module 50 as the second input terminal of the fast charging module 20, the negative input terminal of the operational amplifier U1 is connected to the first end of the first switch tube T1 and one end of the fourth impedance R4, and the output terminal of the operational amplifier U1 is connected to the control terminal of the first switch tube T1. The operational amplifier U1 is used to receive the electrical signal input by the main control module 50 and then change the output signal of the operational amplifier U1.

[0119] The second end of the first switch tube T1 is connected to the second end of the second switch tube T2 , the control end of the second switch tube T2 , and the control end of the third switch tube T3 .

[0120] The first end of the second switch tube T2 is connected to the first end of the third switch tube T3 , the first output end of the slow charging module 10 , and the first input end of the switch module 30 as the first input end of the fast charging module 20 .

[0121] The second end of the third switch tube T3 is connected to the reverse input end of the second diode D2.

[0122] The forward output end of the second diode D2 is connected to the second input end of the switch module 30 as the output end of the fast charging module 20 .

[0123] The other end of the fourth impedance R4 is connected to the first output end of the switch module 30 , the first output end of the charging battery module 40 , and the second ground end as the third input end of the fast charging module 20 .

[0124] Exemplarily, the switching tube can be understood as a transistor with no energy consumption and a switching function, such as an IGBT.

[0125] according to Figure 2 According to the provided diagram, after the main control module 50 obtains the temperature of the device and the internal temperature of the charging battery module 40, when it is determined that the temperature of the device and the internal temperature of the charging battery module 40 are both within the set temperature range, fast charging is turned on, and the switch module 30 is controlled to be turned on internally, so that the fast charging module 20 is connected to the charging battery module 40, and a pulse wave signal is input to the operational amplifier U1 through the main control module, and a control signal is output through the operational amplifier U1. Under the action of the constant current source formed by the first switch tube T1, the second switch tube T2 and the third switch tube T3, a large current signal is input to the second diode D2, and then a large current signal is provided to the charging battery module 40 to achieve fast charging. After the main control module 50 detects in real time that the internal temperature of the charging battery module 40 exceeds the set temperature range, regardless of whether the temperature of the device exceeds the set temperature range, in order to reduce the impact of the high temperature of the charging battery module 40 on the user (overheating of the body-sensing embedded wearable device), it is necessary to lower the current internal temperature of the charging battery module 40, and reduce the frequency or amplitude of the pulse wave signal input to the operational amplifier U1 through the main control module 50, thereby achieving the purpose of reducing the output current of the fast charging module 20, and changing the size of the output current of the fast charging module 20 by adjusting the size of the pulse wave signal input to the operational amplifier U1. When the internal temperature of the charging battery module 40 exceeds the set temperature range, the frequency or amplitude of the pulse wave signal of the operational amplifier U1 is reduced to reduce the current input to the charging battery module 40, thereby achieving the purpose of reducing the internal temperature of the charging battery module 40.

[0126] according to Figure 2 According to the diagram provided, the switch module 30 in the intelligent regulation charging circuit includes: a fourth switch tube T4, a fifth switch tube T5, a third diode D3, a fifth impedance R5, a sixth impedance R6, a seventh impedance R7, an eighth impedance R8, a ninth impedance R9, and a third capacitor C3.

[0127] The first end of the fourth switch tube T4 is connected to the first output end of the slow charging module 10, the first input end of the fast charging module 20 and one end of the seventh impedance R7 as the first input end of the switch module 30, the second end of the fourth switch tube T4 is connected to the negative input end of the third diode D3, and the control end of the fourth switch tube T4 is connected to the other end of the seventh impedance R7 and one end of the eighth impedance R8.

[0128] The forward output end of the third diode D3 is connected to the first output end of the fast charging module 20 as the second input end of the switch module 30, and the forward output end of the third diode D3 is also connected to one end of the fifth impedance R5 and the first input end of the charging battery module 40 as the second output end of the switch module 30.

[0129] The other end of the fifth impedance R5 is connected to one end of the sixth impedance R6 and the second input end of the main control module 50 as the third output end of the switch module 30 .

[0130] The other end of the sixth impedance R6 is connected to the third input end of the fast charging module 20 and the first output end of the rechargeable battery module 40 as the first output end of the switch module 30 .

[0131] The other end of the eighth resistor R8 is connected to the second end of the fifth switch tube T5.

[0132] A first end of the fifth switch tube T5 is connected to one end of the third capacitor C3 and the third ground end, a control end of the fifth switch tube T5 is connected to the other end of the third capacitor C3 and one end of the ninth impedance R9, and the fifth switch tube T5 is used to receive a square wave signal input by the main control module 50, and change the conduction frequency of the third switch tube T3 according to the square wave signal.

[0133] The other end of the ninth impedance R9 is connected to the third output end of the main control module 50 as the third input end of the switch module 30 .

[0134] Exemplarily, the fourth switch tube and the fifth switch tube mentioned here can be understood as energy-free transistors with switching functions, such as IGBTs.

[0135] Exemplarily, the fifth switch tube T5 in the switch module 30 serves as a regulating switch, receives the square wave signal sent by the main control module 50 in real time, and changes the conduction frequency and conduction duration of the fifth switch tube T5 by changing the frequency of the square wave signal input to the fifth switch tube T5.

[0136] In a possible example scenario, after the main control module 50 obtains the device temperature and the internal temperature of the rechargeable battery module 40, it determines through analysis that the current rechargeable battery module 40 is performing fast charging, and then controls the fifth switch tube T5 to be turned on, so that the fourth switch tube T4 is turned off, so that the fast charging module 20 is connected with the rechargeable battery module 40, so that the fast charging module 20 charges the rechargeable battery module 40. When the main control module 50 detects in real time that the device temperature and the internal temperature of the rechargeable battery module 40 exceed the set temperature range, it is necessary to reduce the internal temperature of the rechargeable battery module 40, and reduce the conduction time and conduction frequency of the fifth switch tube T5 by reducing the frequency of the square wave signal input to the fifth switch tube T5. At the same time, the sine wave signal input to the fast charging module 20 by the main control module 50 is reduced to achieve the purpose of reducing the output current of the fast charging module 20, thereby reducing the current input to the rechargeable battery module 40 and parameters such as the charging time and frequency, so as to achieve the purpose of reducing the internal temperature of the rechargeable battery module 40.

[0137] according to Figure 2 According to the provided diagram, the charging battery module 40 in the intelligent regulation charging circuit includes: a charging battery group B, a second thermal resistor NT2 and a tenth resistor R10.

[0138] The positive charging end of the rechargeable battery pack B is connected to the second output end of the switch module 30 as the input end of the rechargeable battery module 40, and the negative discharging end of the rechargeable battery pack B is connected to the first output end of the switch module 30, the third input end of the fast charging module 20 and one end of the second thermistor NT2 as the first output end of the rechargeable battery module 40.

[0139] The other end of the second thermistor NT2 is connected to the third input end of the main control module 50 and one end of the tenth resistor R10 as the second output end of the charging battery module 40 .

[0140] The other end of the tenth resistor R10 is connected to the internal power supply terminal VCC.

[0141] Exemplarily, the internal power supply terminal VCC can be set to 3.3V or 5V or other parameter values ​​according to the charging circuit.

[0142] Exemplarily, before the main control module 50 obtains the temperature of the device and the internal temperature of the rechargeable battery module 40 in real time, the temperature of the rechargeable battery pack B is sensed in real time through the second thermistor NT2, and the resistance value of the second thermistor NT2 is changed through thermal sensing, thereby changing the voltage division of the second thermistor NT2. The main control module 50 detects the voltage division of the second thermistor NT2 in real time, and calculates the temperature of the rechargeable battery pack B, thereby determining the temperature of the rechargeable battery pack B in the current charging state, thereby providing reference data for the next step of analyzing whether to choose fast charging or slow charging.

[0143] In one possible example scenario, according to Figure 2 According to the provided diagram, the device temperature of the first device A is detected in real time by the first thermistor NT1, and the device temperature difference is obtained by acquiring the device temperatures before and after a set time interval; at the same time, the battery temperature of the rechargeable battery pack B is detected in real time by the second thermistor NT2, and when the device temperature difference is within the set temperature difference range and the battery temperature is within the set temperature range, the fifth switch tube T5 is controlled to be turned on by the main controller MCU, causing the fourth switch tube T4 to be disconnected, and the fast charging module 20 is selected to be connected to the rechargeable battery pack B to achieve fast charging; at this time, in order to speed up the charging efficiency, the pulse wave signal strength input to the input end of the operational amplifier U1 can be increased to increase the output current of the fast charging module 20 and speed up the charging. When it is detected that the temperature difference of the device exceeds the set temperature range, but it is detected that the temperature of the rechargeable battery pack B is still within the set temperature range, at this time, in order not to reduce the charging efficiency, continue to maintain the current charging mode and charging current; when it is detected that the temperature of the rechargeable battery pack B exceeds the set temperature range and the temperature difference of the device also exceeds the set temperature range, the battery temperature generated by the rechargeable battery pack B is too high and overheated, which will reduce the user experience. In order to reduce the battery temperature, by reducing the pulse wave signal strength input to the op amp U1, the output current of the fast charging module 20 is reduced, and the charging speed is reduced to achieve the purpose of cooling. Similarly, if the battery temperature is too high, the slow charging module 10 can be selected to charge the rechargeable battery pack B, thereby reducing the charging speed and achieving the purpose of reducing the battery temperature; in the same way, when the slow charging module is charging the rechargeable battery, the main controller MCU will also detect the temperature of the first device A and the temperature of the rechargeable battery B in real time. When the temperature exceeds the set temperature range, by changing the conduction time of the fifth switch tube T5 and the opening frequency within the cycle, the voltage output by the slow charging module at the first node V0 is changed to achieve the purpose of regulating the current, thereby achieving the purpose of changing the charging temperature.

[0144] Figure 3 A flow chart of a control method for a charging circuit provided in an embodiment of the present application. Applicable to the intelligent regulating charging circuit in the above embodiment. Figure 3 The steps of the control method of the charging circuit specifically include:

[0145] S301, obtaining a first temperature of a rechargeable battery module and a second temperature of a main control module, wherein the first temperature represents a detected temperature of a first designated area in the rechargeable battery module and the second temperature represents a detected temperature of a second designated area in the main control module.

[0146] Exemplarily, according to the structure that can only adjust the charging circuit, the temperature of the device embedded in the human body or where the charging circuit is located is detected in real time through the main control module, and the internal temperature of the charging battery module is obtained. When it is judged that the temperature of the device and the internal temperature of the charging battery module are both within the safe temperature range, fast charging is turned on, and the fast charging module is connected to the charging battery module by controlling the internal selective conduction of the switch module, and a high-speed charging current is provided to the charging battery module through the fast charging module; during the fast charging process, when it is detected that the temperature of the device exceeds the safe temperature range, but the internal temperature of the charging battery module is still within the safe temperature range, the pulse wave signal intensity input to the fast charging module can be controlled by the main control module, and the purpose of deceleration is achieved by reducing the frequency of the pulse wave signal, thereby reducing the output current of the fast charging module, improving the problem of excessive temperature of the device, and not affecting the fast charging mode, thereby improving the charging efficiency. When it is detected that the temperature of the device and the internal temperature of the charging battery module are both beyond the safe temperature range, in order to reduce the impact of the charging battery and the device on the user and damage to other devices, the switch module is controlled by the main control module to change the internal conduction mode, and the slow charging module is connected to the charging battery module, and switched to the slow charging mode. During the process of slow charging module charging the rechargeable battery module, the main control module detects the temperature of the device and the internal temperature of the rechargeable battery module in real time. When the temperature of the device exceeds the full temperature range, but the temperature of the rechargeable battery module is still within the safe temperature range, the main control module reduces the frequency of the square wave signal input to the slow charging module, and increases the output voltage of the slow charging module without changing the output current, so as to achieve continued slow charging and improve charging efficiency; when it is detected that the temperature of the device and the internal temperature of the rechargeable battery module are both beyond the safe temperature range, the main control module controls the switch module to close and stop charging the rechargeable battery module to ensure the safety of the device and the user.

[0147] For example, the first designated area mentioned here can be understood as the area where the battery pack in the rechargeable battery module is located. The second designated area mentioned here can be understood as the area where the device temperature detection is located in the main control module. The second designated area is used to detect the temperature of the device where the rechargeable battery module is located.

[0148] Exemplarily, after the charging circuit is turned on, the first temperature of the battery inside the charging battery module is obtained through the main control module to obtain battery temperature data, and then the second temperature of the device is obtained to obtain the real-time temperature of the device, providing a reference for the next step of determining the charging method according to the device temperature and the battery temperature.

[0149] S302 : Determine a target charging mode according to the first temperature and the second temperature.

[0150] Exemplarily, the target charging mode mentioned here can be understood as selecting fast charging or slow charging for fast charging of the rechargeable battery module.

[0151] Further, when the main control module obtains the first temperature of the rechargeable battery module and the second temperature of the device in the main control module, it is determined whether the internal temperature of the rechargeable battery module is too high by judging whether the current first temperature exceeds the set temperature range. The high temperature of the rechargeable battery module will affect the user's body sense response, making the user feel uncomfortable. By judging whether the second temperature exceeds the set temperature range, it is determined whether the temperature of the device embedded in the user's body is too high, and the temperature difference is determined by judging the temperature difference. The two temperatures are in what range, and different temperatures correspond to different charging modes. When the first temperature and the second temperature are both within the temperature range of the device, it indicates that the current temperature is low. In order to improve the charging efficiency, the fast charging module is selected to charge the rechargeable battery module. When the first temperature exceeds the set temperature range and the second temperature is within the temperature range, it indicates that the temperature of the rechargeable battery module is too high, and the slow charging module can be selected to charge the rechargeable battery module. When the first temperature and the second temperature are both higher than the temperature range of the device, it can be switched from the fast charging module to the slow charging module to charge the rechargeable battery module, or the charging circuit can be directly closed to ensure the safety of the device. The target charging mode of the rechargeable battery module is determined by the first temperature and the second temperature.

[0152] S303 . Determine a switch mode of the switch module according to the target charging mode, where the switch mode represents a conduction state in the switch module.

[0153] Exemplarily, the switching mode may be understood as a switching state within a switch module, which may be an internal on state or an internal off state.

[0154] Furthermore, after determining the target charging mode of the rechargeable battery module, a driving instruction is generated by the main control module to control the selective internal conduction state of the switch module, thereby selecting a suitable power supply module to charge the rechargeable battery module.

[0155] S304 , executing charging control on the rechargeable battery module based on the target switching mode.

[0156] Exemplarily, when the target charging mode selects fast charging, a fast charging instruction is sent to the switch module through the main control module, so that the internal switch of the switch module remains in the disconnected state, the slow charging module is blocked from being connected to the rechargeable battery module, and the fast charging module is connected to the rechargeable battery module. The main control module controls the pulse wave signal of the fast charging module, changes the input signal size of the fast charging module, and then changes the output current size to quickly charge the rechargeable battery module. During the fast charging process, by real-time detection of the first temperature and the second temperature, when the first temperature and the second temperature change, for example, when the temperature of the rechargeable battery module is too high, the main control module reduces the frequency of the pulse wave signal input to the fast charging module, and at the same time, the main control module reduces the frequency of the square wave signal input to the switch module, so as to achieve the purpose of deceleration, so that the charging current is reduced, and the temperature of the rechargeable battery module is reduced. Similarly, when the target charging mode is the slow charging mode, the switch module is controlled to be internally turned on through the main control module, the fast charging module is blocked from being connected to the rechargeable battery module, the slow charging module is connected to the rechargeable battery module, and the rechargeable battery module performs the normal charging mode. When a change between the first temperature and the second temperature is detected, in order to continue slow charging, the main control module reduces the square wave signal input to the slow charging module, and reduces the square wave signal input to the switch module, thereby reducing the output voltage of the slow charging module, thereby achieving the purpose of speed reduction, realizing intelligent regulation of charging, and improving charging efficiency.

[0157] Figure 4 A flowchart of another charging circuit control method provided in an embodiment of the present application. Figure 4 This is introduced based on the previous embodiment. Figure 4 The steps of the control method of the charging circuit specifically include:

[0158] S401. Acquire a first temperature of a rechargeable battery pack in a rechargeable battery module through a first thermistor.

[0159] S402: Obtain a second temperature of a first device in a device temperature measurement unit through a second thermistor.

[0160] S403, obtaining a third temperature of the first device corresponding to the set time interval, and determining a temperature difference between the third temperature and the second temperature, where the temperature difference is a temperature change value between the third temperature and the second temperature.

[0161] For example, in the process of charging control of a device embedded in a human body, the first temperature of the rechargeable battery pack is first detected by the first thermistor in the rechargeable battery module, and the temperature of the rechargeable battery pack is detected in real time by the first temperature to detect whether it exceeds the set temperature range, so as to detect the problem of damage to circuit components caused by excessive temperature during charging. The temperature of the device is detected by the second thermistor in the main control module to obtain the second temperature, and the third temperature of the device is obtained again after a set time (for example, set to 1 minute), and the temperature difference is obtained as the difference temperature, and the temperature of the charging device is determined by detecting the difference temperature to determine whether it exceeds the set temperature range.

[0162] S404: Determine whether the first temperature is within a set first threshold range, and determine whether the difference temperature is within a set second threshold range, and obtain a determination result.

[0163] S405 , determining a target charging mode of the rechargeable battery module according to the determination result.

[0164] S406 . Determine a switch mode of the switch module according to the target charging mode, where the switch mode represents a conduction state in the switch module.

[0165] Exemplarily, the first threshold range is set to [0, 55° C.], and the second threshold range is set to [0, 2° C.].

[0166] Further, it is determined whether the first temperature is within the first threshold range, and whether the difference temperature is within the second threshold range, to determine whether the current temperature of the charging battery pack and the first device is too high. Excessive temperatures of the charging battery pack and the first device will affect the stability of the charging circuit and reduce the user experience. When it is determined that the first temperature and the difference temperature are both within the set range, it is characterized that the temperature of the charging battery pack of the current first device is low. In order to improve the charging efficiency, the fast charging mode can be used, and then the switch mode inside the switch module is controlled to be disconnected; when the temperature of the charging battery pack is too high and exceeds the first threshold range, but the difference temperature of the first device is still within the second threshold range, in order to ensure the charging efficiency, the fast charging mode can continue to be used, but the output current of the fast charging module needs to be reduced, which does not affect the fast charging. When the difference temperature of the first device exceeds the second threshold range and the first temperature of the charging battery pack exceeds the first threshold range, in order to prevent the device from overheating, the slow charging mode is used, and then the switch mode inside the switch module is controlled to be on.

[0167] In a possible example scenario, the safe temperature range of the rechargeable battery pack is set to [0, 50°C], and the temperature change safe range of the first device is set to [0, 2°C]. The temperature of the rechargeable battery pack is detected by the first thermistor to be 25°C, which is within the safe temperature range; the temperature of the first device is detected by the second thermistor to be 25°C one minute ago, and the current temperature is 26°C, and then the temperature difference of the first device is inferred to be 1°C, which is within the safe temperature difference range, and then it is determined that the current temperature difference of the first device and the rechargeable battery pack are both in a low temperature state, and then the fast charging mode is selected, and the rechargeable battery pack is charged by the fast charging module through the internal disconnection of the switch module; after real-time detection of the first temperature and the second temperature, but when the first temperature changes and exceeds the set 50°C, the difference temperature is still within the range of [0, 2°C], in order to improve the charging efficiency, the fast charging mode is continued, and the internal switch of the switch module is controlled to remain disconnected. When it is detected that the first temperature and the difference temperature exceed the threshold range, the device temperature is too high to affect the stability of the device, and the slow charging mode is selected, and the internal switch of the switch module is controlled to remain in the on state to achieve the purpose of reducing the charging speed.

[0168] S407 , executing charging control on the rechargeable battery module based on the target switching mode.

[0169] S408, adjusting the conduction time and frequency of the first transistor in the slow charging module to change the output voltage of the slow charging module.

[0170] S409, adjusting the input pulse signal frequency of the operational amplifier in the fast charging module to change the output current of the fast charging module.

[0171] Exemplarily, the conduction time and frequency can change the charging time and frequency of the charging module for the charging battery module.

[0172] Furthermore, after the charging mode and the switching mode are determined, the charging control of the rechargeable battery pack is performed through the main control module.

[0173] Exemplarily, after selecting the slow charging module to charge the rechargeable battery module, the difference temperature between the first temperature and the first device is detected in real time. When temperature reduction control is required, the square wave signal input to the slow charging module is reduced through the main control module to achieve the purpose of reducing the output voltage, thereby reducing the voltage at the first node V0 and keeping the current unchanged. Without changing the charging efficiency, the charging speed is reduced to achieve a cooling effect. After selecting the fast charging module to charge the rechargeable battery module, the changes in the first temperature and the difference temperature are detected. When the first temperature and the difference temperature are too high, in order not to damage the device, the conduction time and frequency of the switch module are controlled, and the strength of the pulse wave signal input to the fast charging module is reduced, so that the output current of the fast charging module is reduced, so as to achieve the purpose of speed reduction, and then achieve cooling. Through temperature detection, when the temperature is too high, the frequency and strength of the output signal of the main control module are adjusted to achieve the purpose of changing the charging speed, thereby realizing the technical effect of intelligently adjusting charging and improving charging efficiency.

[0174] Figure 5 A flowchart of another charging circuit control method provided in an embodiment of the present application. Figure 5 is Figure 3 The present invention is introduced on the basis of the embodiment described in the present invention. It is a further detailed description of the control method of the charging circuit. Figure 5 The steps of the control method of the charging circuit specifically include:

[0175] S501, obtaining a first temperature of a rechargeable battery module and a second temperature of a main control module, wherein the first temperature represents a detected temperature of a first designated area in the rechargeable battery module and the second temperature represents a detected temperature of a second designated area in the main control module.

[0176] S502: Acquire a third temperature of the first device corresponding to the set time interval, and determine a temperature difference between the third temperature and the second temperature, where the temperature difference is a temperature change value between the third temperature and the second temperature.

[0177] S503: When the temperature difference is within a second threshold range, the judgment result obtained is a first judgment result.

[0178] S504: When the first temperature is within the first threshold range and the difference temperature exceeds the second threshold range, the second judgment result is obtained.

[0179] S505: When the first temperature exceeds the first threshold range and the difference temperature exceeds the second threshold range, the judgment result obtained is a third judgment result.

[0180] According to the charging circuit structure, when charging the rechargeable battery pack of the embedded human body device, in order to improve the charging efficiency, the main control module first obtains the first temperature of the rechargeable battery pack (for example, the first temperature is detected to be 35°C) and the second temperature of the first device (for example, 30°C), and obtains the third temperature (for example, 31°C) according to the set time interval (for example, the set cycle is 10 minutes), and then obtains the difference temperature of the first device as 1°C, and sets the first threshold range as the safe temperature range of the first temperature (for example, set [0, 65°C]), obtains the first temperature is in the set first threshold range, and determines that the difference temperature of the first device is in the first threshold range. Within the second threshold range, this situation is taken as the first judgment result, which provides a reference for starting the fast charging mode or the slow charging module in the next step; when the first temperature is within the first threshold range, but the difference temperature exceeds 2°C, the second judgment result is obtained, and the second judgment result is used to provide a reference for switching the charging mode or adjusting the charging current or charging voltage; when the first temperature is detected to be above 65°C and the difference temperature exceeds 2°C, the temperature of the charging battery pack is too high, which affects the stability of the charging circuit components and reduces the user experience (feeling that the embedded device in the body is overheated), and a third judgment result is obtained, and the third judgment result is used to provide a judgment basis for stopping charging.

[0181] S506: When the judgment result is the first judgment result, determine that the target charging mode is the first fast charging mode.

[0182] S507: When the judgment result is the second judgment result, determine that the target charging mode is the second fast charging mode, and the parameters included in the first fast charging mode and the second fast charging mode are the same or different.

[0183] S508: When the judgment result is the third judgment result, determine that the target charging mode is a slow charging mode.

[0184] Exemplarily, according to the first judgment result, when the temperature of the charging battery pack and the first device are both within the safe temperature range, it indicates that the current charging environment is not affected by temperature. In order to improve the charging efficiency, the mother package charging mode is set to the first fast charging mode, and the fast charging module is selected to quickly charge the charging battery pack. According to the second judgment result, when the first temperature of the charging battery pack is within the safe temperature range, but the differential temperature of the first device exceeds the safe temperature range, it indicates that the temperature of the first device currently embedded in the user's body is too high, but the temperature of the charging battery pack is not high, which will not affect the charging efficiency, and then the target charging mode in this case is set to the second fast charging mode, and fast charging can continue to be maintained. According to the third judgment result, when the temperature of the charging battery pack and the first device is too high, it indicates that the current first device generates a lot of heat energy due to the charging process, and this part of the heat energy may damage other devices in the charging circuit. In view of this situation, the target charging mode is set to the slow charging mode, and the charging speed is reduced by reducing the charging current or charging voltage, or when the first temperature and the differential temperature exceed the set threshold temperature range too much, charging is stopped, and the impact of temperature is reduced by stopping charging.

[0185] S509: When the target charging mode is the first fast charging mode or the second fast charging mode, determine that the switch module is in the first switch mode, where the first switch mode indicates that the switch module is in a disconnected state.

[0186] S510: When the target charging mode is the slow charging mode, determine that the switch module is in a second switching mode, where the second switching mode indicates that the switch module is in a conducting state.

[0187] S511. When the target switch mode is the first switch mode, the fifth switch tube in the control switch module remains in an off state, so that the slow charging module performs charging control on the rechargeable battery.

[0188] S512: When the target switch mode is the second switch mode, the fifth switch tube in the control switch module remains in an off state, so that the slow charging module performs charging control on the rechargeable battery.

[0189] Exemplarily, the first switching mode characterizes that the fifth switch tube (e.g., an NPN-type transistor) in the switch module remains in an off state, so that the base potential of the fourth switch tube (e.g., a PNP-type transistor) becomes high, and then the fourth switch tube is disconnected, blocking the slow charging module from being connected to the charging battery module, allowing the fast charging module to be connected to the charging battery pack, and quickly charging the charging battery pack; the second switching mode characterizes that the fifth switch tube in the switch module remains in an on state, so that the base potential of the fourth switch tube becomes low, and then the fourth switch tube is turned on, blocking the fast charging module from being connected to the charging battery module, allowing the slow charging module to be connected to the charging battery pack, and charging the charging battery pack normally.

[0190] Furthermore, when the rechargeable battery pack is in the process of fast charging and it is detected that the temperature of the rechargeable battery pack is too high and exceeds the set first threshold range, regardless of the temperature of the first device, the output current of the fast charging module can be reduced by reducing the strength of the pulse wave signal input to the op amp, thereby achieving the purpose of deceleration and alleviating the problem of the rechargeable battery pack being too hot; when the rechargeable battery pack is in the process of slow charging and it is detected that the temperature of the rechargeable battery pack exceeds the set first threshold range, the frequency of the square wave signal at the control end of the first transistor can be reduced to reduce the size of the output voltage of the first node, thereby achieving the purpose of reducing speed and cooling without changing the output current.

[0191] In a possible example scenario, the second temperature T of the first device where the rechargeable battery pack is located is monitored in real time by the first thermistor NT1. 设 At the same time, the first temperature T of the rechargeable battery pack is monitored in real time through the second thermistor NT2 冲 , calculate the temperature difference ΔT of the first device within the set time interval, and determine T 冲 Whether it is within the first safe temperature range, and whether ΔT is within the second safe temperature range [0℃, 2℃]. When ΔT is within the range [0℃, 2℃] and within the safe range, continue to maintain the fast charging mode; when ΔT exceeds the range [0℃, 2℃], if T 冲 Still in the first safe temperature range, continue to maintain fast charging mode; when ΔT exceeds the range of [0℃, 2℃] and T 冲 When the temperature exceeds the first safety temperature range, the main controller MCU controls the fifth switch tube T5 to change the switch state and switch to the slow charging mode.

[0192] When the rechargeable battery pack is in slow charging mode, the main controller MCU controls the conduction time of the first transistor Q1 to increase the voltage of the first node Vo, thereby achieving a charging mode in which the output current remains unchanged and the voltage increases, thereby improving the charging efficiency.

[0193] When the battery is in fast charging mode, the main controller MCU controls the pulse waveform of the op amp U1 input to change the output current. When the temperature of the first device and the rechargeable battery pack is within a first safety temperature range, the input pulse waveform of the op amp U1 is increased to increase the output current, thereby further accelerating battery charging. When the temperature difference of the first device exceeds the set second safety temperature range and the temperature of the rechargeable battery pack is too high, the main controller MCU reduces the pulse wave signal input to the op amp U1 to reduce the output current, thereby achieving the effect of slowing down charging and improving the impact of temperature on the rechargeable battery.

[0194] Figure 6 A schematic diagram of a control device provided in an embodiment of the present application is shown in FIG. Figure 6The control device 600 shown includes: at least one processor 601, a memory 602, at least one network interface 604 and other user interfaces 603. The various components in the control device 600 are coupled together via a bus system 605. It is understood that the bus system 605 is used to achieve connection and communication between these components. In addition to the data bus, the bus system 605 also includes a power bus, a control bus and a status signal bus. However, for the sake of clarity, the bus system 605 is not described in detail. Figure 6 Various buses are labeled as bus system 605 .

[0195] The user interface 603 may include a display, a keyboard, or a pointing device (eg, a mouse, a trackball, a touch pad, or a touch screen).

[0196] It can be understood that the memory 602 in the embodiment of the present application can be a volatile memory or a non-volatile memory, or can include both volatile and non-volatile memories. Among them, the non-volatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory can be a random access memory (RAM), which is used as an external cache. By way of example but not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct RAM bus random access memory (DRRAM). The memory 602 described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0197] In some implementations, the memory 602 stores the following elements, executable units or data structures, or a subset thereof, or an extended set thereof: an operating system 6021 and an application 6022 .

[0198] The operating system 6021 includes various system programs, such as a framework layer, a core library layer, a driver layer, etc., which are used to implement various basic services and process hardware-based tasks. The application 6022 includes various application programs, such as a media player (Media Player), a browser (Browser), etc., which are used to implement various application services. The program for implementing the method of the embodiment of the present application can be included in the application 6022.

[0199] In the embodiment of the present application, by calling the program or instruction stored in the memory 602, specifically, the program or instruction stored in the application 6022, the processor 601 is used to execute the method steps provided by each method embodiment, for example, including:

[0200] Acquire a first temperature of the charging battery module and a second temperature of the main control module, the first temperature representing the detected temperature of a first designated area in the charging battery module, and the second temperature representing the detected temperature of a second designated area in the main control module; determine a target charging mode according to the first temperature and the second temperature; determine a switching mode of the switch module according to the target charging mode, the switching mode representing the conduction state in the switch module; and perform charging control on the charging battery module based on the target switching mode.

[0201] The method disclosed in the above embodiment of the present application can be applied to the processor 601, or implemented by the processor 601. The processor 601 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by the hardware integrated logic circuit or software instructions in the processor 601. The above processor 601 can be a general processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a field programmable gate array (Field Programmable Gate Array, FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps and logic block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general processor can be a microprocessor or the processor can also be any conventional processor, etc. The steps of the method disclosed in the embodiment of the present application can be directly embodied as a hardware decoding processor to execute, or the hardware and software units in the decoding processor can be executed. The software unit can be located in a mature storage medium in the field such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, etc. The storage medium is located in the memory 602, and the processor 601 reads the information in the memory 602 and completes the steps of the above method in combination with its hardware.

[0202] It is understood that the embodiments described herein may be implemented in hardware, software, firmware, middleware, microcode, or a combination thereof. For hardware implementation, the processing unit may be implemented in one or more application specific integrated circuits (ASIC), digital signal processors (DSP), digital signal processing devices (DSPDevice, DSPD), programmable logic devices (PLD), field programmable gate arrays (FPGA), general purpose processors, controllers, microcontrollers, microprocessors, other electronic units for performing the functions described in the present application, or a combination thereof.

[0203] For software implementation, the technology described herein can be implemented by a unit that performs the functions described herein. The software code can be stored in a memory and executed by a processor. The memory can be implemented in the processor or outside the processor.

[0204] The control device provided in this embodiment may be as follows Figure 6 The control device shown in FIG. 1 may execute the following Figure 3-5 All steps of the control method of the charging circuit in the embodiment of the present invention are implemented Figure 3-5 For details, please refer to Figure 3-5 For the sake of brevity, the relevant description is not repeated here.

[0205] The embodiment of the present application also provides a storage medium (computer-readable storage medium). The storage medium here stores one or more programs. The storage medium may include a volatile memory, such as a random access memory; the memory may also include a non-volatile memory, such as a read-only memory, a flash memory, a hard disk or a solid-state drive; the memory may also include a combination of the above-mentioned types of memory.

[0206] When one or more programs in the storage medium can be executed by one or more processors, the charging circuit control method executed on the control device side can be implemented.

[0207] The processor is used to execute a control program of the charging circuit stored in the memory to implement the following steps of a control method of the charging circuit executed on the control device side:

[0208] Acquire a first temperature of the charging battery module and a second temperature of the main control module, the first temperature representing the detected temperature of a first designated area in the charging battery module, and the second temperature representing the detected temperature of a second designated area in the main control module; determine a target charging mode according to the first temperature and the second temperature; determine a switching mode of the switch module according to the target charging mode, the switching mode representing the conduction state in the switch module; and perform charging control on the charging battery module based on the target switching mode.

[0209] The professionals should also be further aware that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented with electronic hardware, computer software, or a combination of the two. In order to clearly illustrate the interchangeability of hardware and software, the composition and steps of each example have been generally described in terms of function in the above description. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0210] The steps of the method or algorithm described in conjunction with the embodiments disclosed herein may be implemented using hardware, a software module executed by a processor, or a combination of the two. The software module may be placed in a random access memory (RAM), a memory, a read-only memory (ROM), an electrically programmable ROM, an electrically erasable programmable ROM, a register, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.

[0211] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the present application in detail. It should be understood that the above description is only the specific implementation method of the present application and is not intended to limit the scope of protection of the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. An intelligently regulated charging circuit, characterized in that: include: Slow charging module, fast charging module, switch module, rechargeable battery module and main control module; The first output end of the slow charging module is connected to the first input end of the fast charging module and the first input end of the switch module, the second output end of the slow charging module is connected to the first input end of the main control module, the input end of the slow charging module is connected to the first output end of the main control module, and the slow charging module is used to charge the rechargeable battery module when the main control module detects that the rechargeable battery module reaches a first set condition; The second input end of the fast charging module is connected to the second output end of the main control module, the third input end of the fast charging module is connected to the first output end of the switch module and the first output end of the rechargeable battery module, the output end of the fast charging module is connected to the second input end of the switch module, and the fast charging module is used to charge the rechargeable battery module when the main control module detects that the rechargeable battery module reaches a second set condition, and the first set condition and the second set condition are the same or different; The third input end of the switch module is connected to the third output end of the main control module, the second output end of the switch module is connected to the first input end of the rechargeable battery module, the third output end of the switch module is connected to the second input end of the main control module, and the switch module is used to change the internal conduction state when the main control module detects that the charging is switched from the slow charging module to the fast charging module or from the fast charging module to the slow charging module; The second output end of the charging battery module is connected to the third input end of the main control module. The charging battery module is used to charge the charging battery module through the slow charging module or the fast charging module when the main control module detects that the charging device meets the charging conditions. The charging device contains the charging battery module.

2. The circuit according to claim 1, characterized in that The main control module includes: a main control chip and a device temperature measurement unit; The first output end of the main control chip is connected to the first input end of the slow charging module as the first output end of the main control module, the second output end of the main control chip is connected to the second input end of the fast charging module as the second output end of the main control module, the third output end of the main control chip is connected to the third input end of the switch module as the third output end of the main control module, the first input end of the main control chip is connected to the second output end of the slow charging module as the first input end of the main control module, the second input end of the main control chip is connected to the third output end of the switch module as the second input end of the main control module, the third input end of the main control chip is connected to the second output end of the rechargeable battery module as the third input end of the main control module, and the fourth input end of the main control chip is connected to the device temperature measurement unit, and the device temperature measurement unit is used to collect current temperature data of the device through the main control chip.

3. The circuit according to claim 2, characterized in that The device temperature measurement unit comprises: a first device, a first thermistor and a first impedance; The first device is inductively connected to the first thermistor, and a rechargeable battery module is embedded in the first device; One end of the first thermal impedance is connected to the first ground terminal, and the other end of the first thermal impedance is connected to one end of the first impedance; The other end of the first impedance is connected to the internal power supply end.

4. The circuit according to claim 1, characterized in that The slow charging module includes: a DC source, a first inductor, a first capacitor, a first transistor, a first diode, a second impedance, a third impedance and a second capacitor; The negative input end of the DC source is connected to the second ground end, one end of the first capacitor, the first end of the first transistor, one end of the third impedance and one end of the second capacitor, and the positive output end of the DC source is connected to the other end of the first capacitor and one end of the first inductor, and the DC source is used to supply power to the internal components of the slow charging module; The other end of the first inductor is connected to the reverse input end of the first diode and the second end of the first transistor; The control end of the first transistor is connected to the first output end of the main control module as the first input end of the slow charging module; The forward output end of the first diode is connected as the first output end of the slow charging module and one end of the second impedance, the other end of the second capacitor, the first input end of the fast charging module, and the first input end of the switch module to the first node; The other end of the second impedance serves as the second output end of the slow charging module and is connected to the other end of the third impedance and the first input end of the main control module.

5. The circuit according to claim 1, characterized in that The fast charging module includes: an operational amplifier, a first switch tube, a second switch tube, a third switch tube, a second diode and a fourth impedance; The positive input end of the operational amplifier is connected to the second output end of the main control module as the second input end of the fast charging module, the negative input end of the operational amplifier is connected to the first end of the first switch tube and one end of the fourth impedance, the output end of the operational amplifier is connected to the control end of the first switch tube, and the operational amplifier is used to change the output signal of the operational amplifier after receiving the electrical signal input by the main control module; The second end of the first switch tube is connected to the second end of the second switch tube, the control end of the second switch tube and the control end of the third switch tube; The first end of the second switch tube is connected as the first input end of the fast charging module to the first end of the third switch tube, the first output end of the slow charging module and the first input end of the switch module; The second end of the third switch tube is connected to the reverse input end of the second diode; The forward output end of the second diode is connected to the second input end of the switch module as the output end of the fast charging module; The other end of the fourth impedance serves as the third input end of the fast charging module and is connected to the first output end of the switch module, the first output end of the charging battery module and the second ground end.

6. The circuit according to claim 1, characterized in that The switch module includes: a fourth switch tube, a fifth switch tube, a third diode, a fifth impedance, a sixth impedance, a seventh impedance, an eighth impedance, a ninth impedance, and a third capacitor; The first end of the fourth switch tube is connected to the first output end of the slow charging module, the first input end of the fast charging module and one end of the seventh impedance as the first input end of the switch module, the second end of the fourth switch tube is connected to the negative input end of the third diode, and the control end of the fourth switch tube is connected to the other end of the seventh impedance and one end of the eighth impedance; The forward output end of the third diode is connected to the first output end of the fast charging module as the second input end of the switch module, and the forward output end of the third diode is also connected to one end of the fifth impedance and the first input end of the rechargeable battery module as the second output end of the switch module; The other end of the fifth impedance is connected to one end of the sixth impedance and the second input end of the main control module as the third output end of the switch module; The other end of the sixth impedance is connected to the third input end of the fast charging module and the first output end of the rechargeable battery module as the first output end of the switch module; The other end of the eighth impedance is connected to the second end of the fifth switch tube; The first end of the fifth switch tube is connected to one end of the third capacitor and the third ground end, the control end of the fifth switch tube is connected to the other end of the third capacitor and one end of the ninth impedance, and the fifth switch tube is used to receive the square wave signal input by the main control module, and change the conduction frequency of the third switch tube according to the square wave signal; The other end of the ninth impedance is connected to the third output end of the main control module as the third input end of the switch module.

7. The circuit according to claim 1, characterized in that The rechargeable battery module comprises: a rechargeable battery pack, a second thermal impedance and a tenth impedance; The positive charging end of the rechargeable battery pack is connected to the second output end of the switch module as the input end of the rechargeable battery module, and the negative discharging end of the rechargeable battery pack is connected to the first output end of the switch module, the third input end of the fast charging module and one end of the second thermistor as the first output end of the rechargeable battery module; The other end of the second thermistor is connected to the third input end of the main control module and one end of the tenth impedance as the second output end of the rechargeable battery module; The other end of the tenth impedance is connected to the internal power supply end.

8. A control method for a charging circuit, applied to the intelligently regulated charging circuit as claimed in any one of claims 1 to 7, characterized in that: include: Acquire a first temperature of a rechargeable battery module and acquire a second temperature of a main control module, wherein the first temperature represents a detected temperature of a first designated area in the rechargeable battery module and the second temperature represents a detected temperature of a second designated area in the main control module; determining a target charging mode according to the first temperature and the second temperature; Determining a switch mode of a switch module according to the target charging mode, wherein the switch mode represents a conduction state in the switch module; Charging control of the charging battery module is performed based on the target switching pattern.

9. The method according to claim 8, characterized in that The obtaining of the first temperature of the rechargeable battery module and the obtaining of the second temperature of the main control module include: Acquiring a first temperature of a rechargeable battery pack in the rechargeable battery module through a first thermistor; The second temperature of the first device in the device temperature measuring unit is obtained through the second thermistor.

10. The method according to claim 8, characterized in that The determining the target charging mode according to the first temperature and the second temperature includes: Acquire a third temperature of the first device corresponding to the set time interval, and determine a difference temperature between the third temperature and the second temperature, where the difference temperature is a temperature change value between the third temperature and the second temperature; Determine whether the first temperature is within a set first threshold range, and determine whether the difference temperature is within a set second threshold range, to obtain a determination result; A target charging mode of the rechargeable battery module is determined according to the determination result.

11. The method according to claim 10, characterized in that The determining whether the first temperature is within a set first threshold range, and determining whether the difference temperature is within a set second threshold range, to obtain a determination result, includes: When the temperature difference is within a second threshold range, the judgment result is a first judgment result; When the first temperature is within a first threshold range and the difference temperature exceeds the second threshold range, the judgment result is a second judgment result; When the first temperature exceeds the first threshold range and the difference temperature exceeds the second threshold range, the judgment result is a third judgment result.

12. The method according to claim 11, characterized in that The step of determining a target charging mode of the rechargeable battery module according to the judgment result includes: When the judgment result is the first judgment result, determining that the target charging mode is the first fast charging mode; When the judgment result is the second judgment result, determining that the target charging mode is the second fast charging mode, and the parameters included in the first fast charging mode and the second fast charging mode are the same or different; When the judgment result is the third judgment result, it is determined that the target charging mode is a slow charging mode.

13. The method according to claim 12, characterized in that The step of determining the switching mode of the switching module according to the target charging mode includes: When the target charging mode is the first fast charging mode or the second fast charging mode, determining that the switch module is in a first switch mode, the first switch mode indicating that the switch module is in a disconnected state; When the target charging mode is the slow charging mode, it is determined that the switch module is in a second switch mode, and the second switch mode indicates that the switch module is in a conducting state.

14. The method according to claim 13, characterized in that The performing charging control on the rechargeable battery module based on the target switching mode includes: When the target switch mode is the first switch mode, controlling the fifth switch tube in the switch module to remain in an off state, so that the slow charge module performs charging control on the rechargeable battery; When the target switch mode is the second switch mode, the fifth switch tube in the switch module is controlled to remain in an off state, so that the slow charging module performs charging control on the rechargeable battery.

15. The method according to claim 8, characterized in that The method further comprises: Adjusting the conduction time and frequency of the first transistor in the slow charging module to change the output voltage of the slow charging module; or, The input pulse signal frequency of the operational amplifier in the fast charging module is adjusted to change the output current of the fast charging module.

16. A control device, characterized in that: include: A processor and a memory, wherein the processor is used to execute a control program for human body impedance detection stored in the memory to implement the control method for the charging circuit according to any one of claims 8 to 15.

17. A storage medium, characterized in that: The storage medium stores one or more programs, and the one or more programs can be executed by one or more processors to implement the control method of the charging circuit according to any one of claims 8 to 15.

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