Magnetic wireless charging mobile power supply control circuit and method capable of fast charging while charging

Abstract

The present application relates to a magnetic wireless charging mobile power supply control circuit and method that can charge and discharge quickly at the same time. The control circuit includes a power input module, a power management module, a wireless charging power supply module and a control module. The wireless charging power supply module includes a fast charging control unit and a slow charging control unit. The power management module is connected to the power input terminal of the slow charging control unit, the power input module is connected to the power input terminal of the fast charging control unit, the enable signal input terminal of the slow charging control unit is connected to the enable signal output terminal of the power management module, and the enable signal input terminal of the fast charging control unit is connected to the enable signal output terminal of the control module. The traditional magnetic mobile power supply can only provide 5V voltage when charging and discharging at the same time, which is equivalent to multiple ports working, and cannot meet the fast charging requirements of mobile phones, resulting in slow charging speed. By providing 9V or higher voltage through the fast charging control unit, the wireless charging speed can be greatly improved in the case of charging and discharging at the same time, significantly improving the user experience.

Description

Technical Field

[0001] The present invention relates to the technical field of magnetic mobile power supply management, and in particular to a magnetic wireless charging mobile power supply control circuit and method capable of fast charging while charging and discharging. Background Art

[0002] At present, with the rapid development of the global economy, mobile phones have become a necessity in people's daily lives. However, after long-term use, the battery life problem often becomes a problem that troubles users. In order to deal with this problem, mobile power banks came into being and became a common tool in modern life. In traditional mobile power banks, charging and discharging at the same time (that is, charging the mobile power bank through the Type-C port while charging the mobile phone) is often not convenient enough. Magnetic mobile power banks with wireless charging function came into being. With its convenient carrying method, it solves the problem of users not wanting to carry charging cables.

[0003] However, most magnetic power banks on the market currently only provide a voltage of 5V when charging and discharging at the same time, which is far from meeting the needs of fast charging. Due to the low efficiency of wireless charging itself, coupled with the fact that it only has a 5V voltage output, the mobile phone can only be charged at a low power level even in wireless charging mode, and the charging speed is greatly reduced, and it often takes a long time to fully charge the battery. This charging experience obviously cannot meet the user's demand for fast charging, especially the high dependence of modern smartphones on fast charging, which causes users to wait a long time before using their mobile phones in an emergency, greatly affecting the user experience. Therefore, providing a wireless fast charging function with sufficient voltage support has become the key to improving the competitiveness of magnetic power banks. Summary of the invention

[0004] In order to solve the problem that the current magnetic mobile power supply cannot meet the fast charging requirements of mobile phones when charging and discharging at the same time, and the insufficient voltage causes slow charging speed, the present application provides a magnetic wireless charging mobile power supply control circuit and method that can charge and discharge quickly at the same time.

[0005] A magnetic wireless charging mobile power supply control circuit capable of fast charging and discharging at the same time, the magnetic wireless charging mobile power supply control circuit capable of fast charging and discharging at the same time comprises a power input module, a power management module, a wireless charging power supply module and a control module, the wireless charging power supply module comprises a fast charging control unit and a slow charging control unit, the power input end of the power input module is connected to an external power supply, the power output end of the power input module is connected to the power input end of the power management module, the power output end of the power management module is connected to the power input end of the slow charging control unit, the power output end of the slow charging control unit outputs a first power supply voltage for power supply, the power The power output end of the input module is connected to the power input end of the fast charging control unit, and the power output end of the fast charging control unit outputs a second power supply voltage for power supply, wherein the first power supply voltage is less than the second power supply voltage, the enable signal input end of the slow charging control unit is connected to the enable signal output end of the power management module, the enable signal input end of the fast charging control unit is connected to the enable signal output end of the control module, the data communication end of the control module is connected to the data communication end of the power management module, and the control module is used to output the first supply voltage or the second supply voltage according to the battery power data in the power management module.

[0006] By adopting the above technical solution, the present application outputs electric energy to the fast charging control unit or the slow charging control unit through the power management module according to the current demand and battery status. The slow charging control unit provides a 5V output, which is suitable for the standard mode of battery charging or wireless charging; while the fast charging control unit provides an output voltage of 9V or higher to ensure that the wireless charging module can provide sufficient voltage to support the fast charging of the mobile phone. Through the enable signal of the control module, the fast charging control unit and the slow charging control unit are enabled or not. The control module is dynamically adjusted according to the battery power and charging requirements. Through the fast charging mobile power supply control circuit while charging and discharging, the problem that the traditional magnetic mobile power supply cannot provide 9V fast charging voltage for the mobile power supply when charging and discharging is solved. In the process of charging and discharging, the mobile power supply can continuously provide 9V fast charging voltage for wireless charging, and provide charging current for itself at the same time. The traditional magnetic mobile power supply can only provide 5V voltage when charging and discharging, which is equivalent to multiple ports working, and cannot meet the fast charging requirements of mobile phones, resulting in slow charging speed. Providing 9V or higher voltage through the fast charging control unit can greatly improve the wireless charging speed in the case of charging and discharging, and significantly improve the user experience.

[0007] Preferably, the wireless charging power supply module also includes a voltage stabilizing element U5, the power input end of the voltage stabilizing element U5 is connected to the power output end of the slow charging control unit, the voltage detection signal output end of the voltage stabilizing element U5 is connected to the voltage detection signal input end of the control module, the current detection signal output end of the voltage stabilizing element U5 is connected to the current detection signal input end of the control module, the power input end of the voltage stabilizing element U5 is connected to the power output end of the fast charging control unit, and the voltage stabilizing element U5 is used to stably output the first power supply voltage or the second power supply voltage.

[0008] By adopting the above technical solution, the voltage stabilizing element U5 of the wireless charging and power supply module can accurately control the voltage to ensure that the output voltage can remain stable during the charging and discharging process, whether it is 5V or 9V. This voltage stabilization control not only ensures the voltage stability of the charging device during the charging process, but also effectively reduces the impact of power supply fluctuations on device performance and battery life, ensuring that the voltage supply is always within a safe range under different charging conditions, thereby improving the overall charging efficiency and reliability of the device.

[0009] Preferably, the slow charging control unit includes a switch conduction element Q4, the power input end of the switch conduction element Q4 is connected to the power output end of the power management module, the power output end of the switch conduction element Q4 is connected to the power input end of the voltage stabilizing element U5, and the controlled end of the switch conduction element Q4 is connected to the enable signal output end of the power management module.

[0010] By adopting the above technical solution, the slow charging control unit can adjust the output voltage according to the battery power and demand through the synergy of the switch conduction element Q4 and the power management module. The design of the switch conduction element Q4 ensures that the slow charging control unit starts at the appropriate time to provide a stable 5V output voltage for the device. Through this solution, low-power voltage can be flexibly provided to the device, reducing the overheating problem caused by excessive power output, thereby improving the battery life and charging stability of the mobile power supply, and avoiding damage caused by battery overheating.

[0011] Preferably, the fast charging control unit includes a MOS tube Q5, a MOS tube Q6, a resistor R17, a resistor R21 and a transistor Q7, the first conducting end of the MOS tube Q5 is connected to the power output end of the power input module, the second conducting end of the MOS tube Q5 is connected to the first conducting end of the MOS tube Q6, the second conducting end of the MOS tube Q6 is connected to the power input end of the voltage stabilizing element U5, the common node between the second conducting end of the MOS tube Q5 and the first conducting end of the MOS tube Q6 is connected to the first end of the resistor R17, the second end of the resistor R17 is connected to the first conducting end of the transistor Q7, the second conducting end of the transistor Q7 is grounded, the controlled end of the transistor Q7 is connected to the first end of the resistor R21, and the second end of the resistor R21 is connected to the enable signal output end of the control module.

[0012] By adopting the above technical solution, the fast charging control unit can accurately control the switching of current and voltage through components including MOS tubes Q5, Q6 and transistor Q7, so that under different loads, the power supply can respond quickly and provide appropriate fast charging voltage. In particular, through the configuration of components such as resistors R17 and R21, the output of the fast charging voltage can be accurately adjusted while ensuring the safety of the battery under high current. Through intelligent switch control and current regulation mechanism, the charging speed can be effectively improved to avoid overcurrent or overvoltage protection triggering, thereby greatly shortening the charging time and optimizing the user charging experience.

[0013] Preferably, the wireless charging power supply module also includes a voltage acquisition unit, which includes a resistor R16, a resistor R19 and a capacitor C21. The common node between the second conduction end of the MOS tube Q6 and the power input end of the voltage stabilizing element U5 is connected to the first end of the resistor R16, the second end of the resistor R16 is connected to the first end of the resistor R19, the second end of the resistor R19 is grounded, and the capacitor C21 is connected between the second end of the resistor R16 and the ground.

[0014] By adopting the above technical solution, the voltage acquisition unit of the wireless charging power supply module can monitor the charging voltage in real time and transmit the data to the control module, so that the control module can dynamically adjust the charging strategy according to the real-time voltage changes. Through the cooperation of resistors R16, R19 and capacitor C21, the voltage acquisition unit can accurately collect voltage data and determine the stability of the output voltage based on these data. This design can effectively prevent charging instability caused by voltage fluctuations, thereby improving charging efficiency, and ensuring that the battery during the charging process will not be damaged by voltage fluctuations, ensuring safe charging of the equipment.

[0015] Preferably, the power management module includes a power management chip U1, a resistor R2 and a switch conduction element Q1, the power output end of the power input module is connected to the first conduction end of the switch conduction element Q1, the second conduction end of the switch conduction element Q1 is connected to the first end of the resistor R2, the second end of the resistor R2 is connected to the power input end of the power management chip U1, and the power output end of the power management chip U1 is connected to the power input end of the slow charging control unit.

[0016] By adopting the above technical solution, the power management module is composed of a power management chip U1 and a switch conduction element Q1, etc., which can efficiently adjust the current and voltage of the input power supply and stably output it to the wireless charging module or mobile power battery. The efficient power conversion and regulation function of the power management chip enables the power supply to provide a stable 5V or 9V voltage according to the device requirements, while ensuring that the battery will not be damaged due to charging too slowly or too quickly. This design not only improves the efficiency and stability of battery charging, but also increases the energy efficiency of the system and avoids energy waste.

[0017] Preferably, the power input module includes a wiring terminal USB1, a resistor R3 and a resistor R4, the power input end of the wiring terminal USB1 is connected to an external power supply, the power output end of the wiring terminal USB1 is connected to the power input end of the power management module, the power output end of the wiring terminal USB1 is connected to the power input end of the fast charging control unit, the resistor R3 is connected between the first detection signal output end of the wiring terminal USB1 and the first detection signal input end of the power management chip U1, the resistor R4 is connected between the second detection signal output end of the wiring terminal USB1 and the second detection signal input end of the power management chip U1, the first detection signal output end and the second detection signal output end of the wiring terminal USB1 are used to identify direction detection, and then perform charging operation or discharging operation of the magnetic mobile power supply.

[0018] By adopting the above technical solution, the power input module can automatically identify the charging mode and switch the corresponding charging mode according to the connection status of the external power supply through the configuration of components such as the wiring terminal USB1. Through the action of resistors R3 and R4, the wiring terminal can accurately identify the direction detection and ensure the smooth switching of charging and discharging operations. This design ensures that when using the mobile power supply, the user can flexibly switch the charging or discharging mode according to different needs, enhances the applicability and flexibility of the device, and thus improves the overall use experience.

[0019] Preferably, the magnetic wireless charging mobile power supply control circuit that can charge and discharge quickly at the same time also includes a temperature acquisition module, and the temperature acquisition module includes a resistor R27, a thermistor PCBNTC and a capacitor C24, the first end of the resistor R27 is connected to the power supply, the second end of the resistor R27 is connected to the first end of the thermistor PCBNTC, the second end of the thermistor PCBNTC is grounded, the capacitor C24 is connected between the second end of the resistor R27 and the ground, and the common node between the second end of the resistor R27 and the first end of the thermistor PCBNTC is connected to the temperature signal input end of the control module.

[0020] By adopting the above technical solution, the control circuit of the magnetic mobile power supply that charges and discharges at the same time to achieve fast charging further adds the design of a temperature acquisition module, so that the system can monitor the temperature changes of the battery and circuit in real time. Through the cooperation of thermistor PCBNTC and resistors R27 and C24, the temperature acquisition module can accurately obtain the temperature signal and dynamically adjust the charging process through the control module. This design effectively avoids battery damage or overheating protection triggering due to overheating, ensuring that the temperature during the charging process is always kept within a safe range, thereby improving the safety and charging efficiency of the equipment.

[0021] A control method based on a magnetic wireless charging mobile power supply control circuit capable of fast charging while charging and discharging is applied to a magnetic wireless charging mobile power supply control circuit capable of fast charging while charging and discharging, and the control method comprises:

[0022] Acquire attribute information of the wireless charging object, and match the corresponding charging characteristic process and charging characteristic threshold in the local database according to the attribute information;

[0023] Extracting a characteristic period in the charging characteristic process, and determining a supply voltage level corresponding to the characteristic period;

[0024] Determine control parameters of a slow charge control unit and a fast charge control unit according to the characteristic cycle and the supply voltage level, wherein the control parameters include at least a cycle parameter and an enable parameter, wherein the enable parameter is used to control the slow charge control unit to be turned on to output a first supply voltage, or to control the fast charge control unit to be turned on to output a second supply voltage, and the cycle parameter is used to determine a first cycle duration of outputting the first supply voltage, and to determine a second cycle duration of outputting the second supply voltage;

[0025] If the magnetic mobile power supply is in a power supply state of outputting a second power supply voltage, the charging switching weight is determined to determine whether the charging switching weight exceeds a determined weight threshold. If not, the judgment continues. If exceeded, the second power supply voltage output by the fast charging control unit is switched to the first power supply voltage output by the slow charging control unit.

[0026] By adopting the above technical solution, the control method of the control circuit for fast charging based on the magnetic mobile power supply while charging and discharging can intelligently match the charging characteristic process and charging characteristic threshold according to the attribute information of the wireless charging object, and adjust the supply voltage in real time. This dynamic control solution automatically selects fast charging or slow charging mode according to the battery power and temperature changes to ensure the efficiency and safety of the charging process.

[0027] Preferably, the step of determining the charging switching weight includes:

[0028] Acquire battery data of the magnetic mobile power supply in real time, wherein the battery data at least includes battery power data and battery temperature data;

[0029] Acquire object temperature data of the wireless charging object;

[0030] According to the battery data, matching corresponding battery weights in a local database;

[0031] Comparing the object temperature data with the charging characteristic threshold, generating a corresponding comparison result, and matching a corresponding object weight in a local database according to the comparison result;

[0032] The battery weight and the object weight are added together to generate a corresponding charging switching weight.

[0033] By adopting the above technical solution, by obtaining the charging switching weight in real time and making judgments, the system can automatically adjust the output voltage when the charging switching conditions are met, thereby avoiding current overload and overheating problems during the charging process, optimizing the charging efficiency, and improving the overall user experience.

[0034] In summary, the present application includes at least one of the following beneficial technical effects:

[0035] This application outputs electrical energy to the fast charging control unit or the slow charging control unit through the power management module according to the current demand and battery status. The slow charging control unit provides a 5V output, which is suitable for the standard mode of battery charging or wireless charging; while the fast charging control unit provides an output voltage of 9V or higher to ensure that the wireless charging module can provide sufficient voltage to support the fast charging of the mobile phone. Through the enable signal of the control module, the fast charging control unit and the slow charging control unit are enabled or not. The control module is dynamically adjusted according to the battery power and charging requirements. Through the fast charging mobile power control circuit while charging and discharging, the problem that the traditional magnetic mobile power supply cannot provide 9V fast charging voltage for the mobile power supply when charging and discharging is solved. In the process of charging and discharging, the mobile power supply can continuously provide 9V fast charging voltage for wireless charging, and provide charging current for itself at the same time. The traditional magnetic mobile power supply can only provide 5V voltage when charging and discharging, which is equivalent to multiple ports working, and cannot meet the fast charging requirements of mobile phones, resulting in slow charging speed. Providing 9V or higher voltage through the fast charging control unit can greatly improve the wireless charging speed in the case of charging and discharging, and significantly improve the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a flow chart of a magnetic wireless charging mobile power supply control circuit that can charge and discharge quickly in one embodiment of the present application.

[0037] Figure 2 It is a partial circuit diagram of a power management module in a magnetic wireless charging mobile power control circuit capable of fast charging while charging in one embodiment of the present application;

[0038] Figure 3 This is a schematic diagram of a partial circuit of a wireless charging power supply module in a magnetic wireless charging mobile power control circuit that can charge and discharge quickly in one embodiment of the present application. Figure 1 ;

[0039] Figure 4 It is a partial circuit diagram of a power input module in a magnetic wireless charging mobile power control circuit capable of fast charging while charging in one embodiment of the present application;

[0040] Figure 5 It is a partial circuit diagram of a control module in a magnetic wireless charging mobile power supply control circuit capable of fast charging while charging in one embodiment of the present application;

[0041] Figure 6 This is a schematic diagram of a partial circuit of a wireless charging power supply module in a magnetic wireless charging mobile power control circuit that can charge and discharge quickly in one embodiment of the present application. Figure 2 ;

[0042] Figure 7It is a partial circuit diagram of a temperature acquisition module in a magnetic wireless charging mobile power supply control circuit capable of fast charging while charging in one embodiment of the present application;

[0043] Figure 8 It is a flow chart of a control method of a magnetic wireless charging mobile power supply control circuit capable of fast charging while charging and discharging in one embodiment of the present application;

[0044] Fig. 9 It is a flowchart for implementing step S40 in a control method of a magnetic wireless charging mobile power supply control circuit capable of fast charging while charging and discharging in one embodiment of the present application.

[0045] Description of reference numerals:

[0046] 1. Power input module; 2. Power management module; 3. Wireless charging power supply module; 31. Fast charging control unit; 32. Slow charging control unit; 33. Voltage acquisition unit; 4. Control module. DETAILED DESCRIPTION

[0047] The present application is further described in detail below in conjunction with the accompanying drawings.

[0048] In one embodiment, if Figure 1 As shown, the present application discloses a magnetic wireless charging mobile power control circuit that can charge and discharge quickly at the same time, specifically including a power input module 1, a power management module 2, a wireless charging power supply module 3 and a control module 4, the wireless charging power supply module 3 includes a fast charging control unit 31 and a slow charging control unit 32, the power input end of the power input module 1 is connected to an external power supply, the power output end of the power input module 1 is connected to the power input end of the power management module 2, the power output end of the power management module 2 is connected to the power input end of the slow charging control unit 32, the power output end of the slow charging control unit 32 outputs a first power supply voltage for power supply, and the power input module 1 The power output end is connected to the power input end of the fast charging control unit 31, and the power output end of the fast charging control unit 31 outputs a second power supply voltage for power supply, wherein the first power supply voltage is less than the second power supply voltage, the enable signal input end of the slow charging control unit 32 is connected to the enable signal output end of the power management module 2, the enable signal input end of the fast charging control unit 31 is connected to the enable signal output end of the control module 4, and the data communication end of the control module 4 is connected to the data communication end of the power management module 2, and the control module 4 is used to output the first supply voltage or the second supply voltage according to the battery power data in the power management module 2.

[0049] In this embodiment, in the control circuit of the magnetic mobile power supply for fast charging while charging and discharging, the connection relationship between each module and the control logic are closely related, aiming to realize the intelligent selection of appropriate voltage output when charging and discharging, ensuring that it can support the wireless charging and fast charging function without affecting the charging process of the mobile power supply itself. First, the power input end of the power input module 1 is connected to the external power supply, and the external power supply provides input power for the system. The power output end of the power input module 1 transmits electric energy to the power management module 2 to adjust the voltage. The power management module 2 distributes the power to the two control units of the wireless charging power supply module 3 according to the current and voltage requirements of the input power supply. Specifically, the power output end of the power management module 2 is connected to the power input end of the slow charging control unit 32, and supplies the slow charging control unit 32 for outputting the first power supply voltage (ie, a lower 5V voltage). In addition, the power output end of the power input module 1 is also connected to the power input end of the fast charging control unit 31 to provide power to the fast charging control unit 31 to ensure that it can output the second power supply voltage (ie, a higher 9V voltage). In the wireless charging power supply module 3, the output voltages of the slow charging control unit 32 and the fast charging control unit 31 are respectively used to provide low-power charging or high-power fast charging power supply to the mobile power supply to meet different charging requirements. In order to ensure the correct charging mode, the enable signal input terminal of the slow charging control unit 32 is connected to the enable signal output terminal of the power management module 2. When the battery power is low, the power management module 2 will enable the slow charging mode; the enable signal input terminal of the fast charging control unit 31 is connected to the enable signal output terminal of the control module 4. The control module 4 determines whether the fast charging mode needs to be started according to the battery power data to provide a 9V voltage for fast charging. The data communication terminal of the control module 4 is connected to the data communication terminal of the power management module 2 to obtain the battery power data in real time, dynamically adjust the voltage output according to the data, and select the appropriate voltage mode (5V or 9V). Through the above control logic, the system can intelligently adjust the voltage output according to the battery power and charging requirements to avoid overcurrent or overheating, and ensure the stability and efficiency of battery charging, so as to achieve efficient charging and safe charging when charging and discharging at the same time.

[0050] Furthermore, in this system, the fast charging input voltage has three gears: 9V, 12V and 5V, to meet the charging needs of different devices. When the wireless charging object is a mobile phone or other device that requires higher power, the system will automatically switch to the 9V or 12V fast charging voltage mode to ensure that sufficient current is provided to the device to achieve fast charging and improve charging efficiency. For low-power devices such as headphones, the system will select the 5V voltage gear to avoid unnecessary power waste caused by excessive voltage and ensure high efficiency and stability during the charging process. More importantly, the system is also equipped with an NTC temperature sensor. When the temperature is detected to be too high during the charging process, the system will automatically reduce the input voltage to 5V to effectively reduce the heating of the device and avoid potential damage to the battery and circuit caused by overheating, thereby improving the safety and user experience during the charging process. This dynamic voltage adjustment function ensures that the system can provide the best charging performance in different devices and different charging environments, while taking into account safety and comfort.

[0051] In summary, the present application outputs electrical energy to the fast charging control unit 31 and the slow charging control unit 32 respectively through the power management module 2 according to the current demand and battery status. The slow charging control unit 32 provides a 5V output, which is suitable for the standard mode of battery charging or wireless charging; while the fast charging control unit 31 provides an output voltage of 9V or higher to ensure that the wireless charging module can provide sufficient voltage to support the fast charging of the mobile phone. Through the enable signal of the control module 4, the fast charging control unit 31 and the slow charging control unit 32 are enabled or not. The control module 4 is dynamically adjusted according to the battery power and charging demand. Through the fast charging mobile power supply control circuit while charging and discharging, the problem that the traditional magnetic mobile power supply cannot provide 9V fast charging voltage for the mobile power supply when charging and discharging is solved. In the process of charging and discharging, the mobile power supply can continuously provide 9V fast charging voltage for wireless charging, and provide charging current for itself at the same time. The traditional magnetic mobile power supply can only provide 5V voltage when charging and discharging, which is equivalent to multiple ports working, and cannot meet the fast charging requirements of the mobile phone, resulting in slow charging speed. By providing a 9V or higher voltage through the fast charging control unit, the wireless charging speed can be greatly improved while charging and discharging, significantly improving the user experience.

[0052] Further, such as Figure 6 As shown, the wireless charging power supply module 3 also includes a voltage stabilizing element U5, the power input end of the voltage stabilizing element U5 is connected to the power output end of the slow charging control unit 32, the voltage detection signal output end of the voltage stabilizing element U5 is connected to the voltage detection signal input end of the control module 4, the current detection signal output end of the voltage stabilizing element U5 is connected to the current detection signal input end of the control module 4, the power input end of the voltage stabilizing element U5 is connected to the power output end of the fast charging control unit 31, and the voltage stabilizing element U5 is used to stably output the first power supply voltage or the second power supply voltage.

[0053] In this embodiment, the voltage stabilizing element U5 in the wireless charging power supply module 3 plays a key role in the entire circuit, ensuring the stable output of voltage under different charging modes. The power input end of the voltage stabilizing element U5 is connected to the power output end of the slow charging control unit 32. When the system selects the slow charging mode, the power management module 2 provides a lower 5V voltage through the slow charging control unit 32. The voltage stabilizing element U5 outputs a stable voltage to ensure that the output 5V voltage is not fluctuated during the charging process, maintain the stability of the voltage, thereby improving the charging efficiency and avoiding battery damage caused by unstable voltage. At the same time, the power input end of the voltage stabilizing element U5 is also connected to the power output end of the fast charging control unit 31. When the system switches to the fast charging mode, the voltage stabilizing element U5 is also responsible for stabilizing the voltage output of 9V or higher, ensuring that sufficient and stable voltage is provided for devices that need fast charging (such as mobile phones), ensuring high efficiency and charging safety during the charging process. In order to further improve the accuracy of power management, the voltage detection signal output end of the voltage stabilizing element U5 is connected to the voltage detection signal input end of the control module 4, and the current detection signal output end is connected to the current detection signal input end of the control module 4 to monitor the changes in voltage and current in real time. By receiving these detection signals, the control module 4 can dynamically adjust the output voltage and current to ensure that the device will not be damaged by overcurrent or voltage instability during the charging process, thereby providing a safe and stable charging environment. Through the efficient voltage and current control of the voltage stabilizing element U5, the system can accurately control the charging voltage and provide an ideal charging experience in different charging modes. The current detection signal input end of the control module 4 is Figure 5 AD1 in the control module 4 is the voltage detection signal input terminal. Figure 5 VOC IN.

[0054] In summary, the voltage stabilizing element U5 of the wireless charging and power supply module 3 can ensure that the output voltage remains stable during the charging and discharging process, whether it is 5V or 9V. This voltage stabilization control not only ensures the voltage stability of the charging device during the charging process, but also effectively reduces the impact of power supply fluctuations on device performance and battery life, ensuring that the voltage supply is always within a safe range under different charging conditions, thereby improving the overall charging efficiency and device reliability.

[0055] Further, such as Figure 3 As shown, the slow charging control unit 32 includes a switch conduction element Q4, the power input end of the switch conduction element Q4 is connected to the power output end of the power management module 2, the power output end of the switch conduction element Q4 is connected to the power input end of the voltage stabilizing element U5, and the controlled end of the switch conduction element Q4 is connected to the enable signal output end of the power management module 2.

[0056] In this embodiment, the slow charging control unit 32 includes a switch conduction element Q4, which plays a role in the entire circuit to control whether the slow charging mode is enabled by adjusting the output voltage of the power supply. The power input end of the switch conduction element Q4 is connected to the power output end of the power management module 2, which means that the power management module 2 is responsible for providing power to the slow charging control unit 32. Under the control of the power management module 2, the switch conduction element Q4 can turn on or off the circuit according to demand, thereby adjusting the output of the voltage. When the power management module 2 decides to enable the slow charging mode, the switch conduction element Q4 will be activated, and its power output end will transmit the voltage to the power input end of the voltage stabilizing element U5. The function of the voltage stabilizing element U5 is to stabilize the voltage output and ensure that the wireless charging module provides a stable 5V voltage, thereby realizing low-power charging of the wireless charging device. The controlled end of the switch conduction element Q4 is connected to the enable signal output end of the power management module 2, which means that the power management module 2 controls the working state of the switch conduction element Q4 through the enable signal. When the battery power is low, the power management module 2 will activate the switch conduction element Q4 through the enable signal, start the slow charging mode and ensure the 5V voltage output; when the battery power is sufficient, the power management module 2 may choose to turn off the switch conduction element Q4 and switch to other charging modes. Through this precise control, the switch conduction element Q4 can ensure the stability of the charging voltage and effectively avoid potential damage to the device due to excessively high or low voltage, ensuring the safe and efficient operation of the wireless charging device.

[0057] In summary, the slow charging control unit 32 can adjust the output voltage according to the battery power and demand through the synergy of the switch conduction element Q4 and the power management module 2. The design of the switch conduction element Q4 ensures that the slow charging control unit 32 starts at the appropriate time to provide a stable 5V output voltage for the device. Through this solution, it is possible to flexibly provide low-power voltage to the device, reduce overheating problems caused by excessive power output, thereby improving the battery life and charging stability of the mobile power supply, and avoiding damage caused by overheating of the battery.

[0058] Further, such as Figure 3As shown, the fast charging control unit 31 includes a MOS tube Q5, a MOS tube Q6, a resistor R17, a resistor R21 and a transistor Q7. The first conducting end of the MOS tube Q5 is connected to the power output end of the power input module 1, the second conducting end of the MOS tube Q5 is connected to the first conducting end of the MOS tube Q6, the second conducting end of the MOS tube Q6 is connected to the power input end of the voltage stabilizing element U5, the common node between the second conducting end of the MOS tube Q5 and the first conducting end of the MOS tube Q6 is connected to the first end of the resistor R17, the second end of the resistor R17 is connected to the first conducting end of the transistor Q7, the second conducting end of the transistor Q7 is grounded, the controlled end of the transistor Q7 is connected to the first end of the resistor R21, and the second end of the resistor R21 is connected to the enable signal output end of the control module 4.

[0059] In this embodiment, the fast charging control unit 31 is composed of a MOS tube Q5, a MOS tube Q6, a resistor R17, a resistor R21 and a triode Q7, and the overall control circuit is used to provide the high voltage required for fast charging during the wireless charging process. Specifically, the first conduction end of the MOS tube Q5 is connected to the power output end of the power input module 1, and the power input module 1 provides an external power input for the entire system. The MOS tube Q5 acts as a power switch to control whether the power passes. The second conduction end of the MOS tube Q5 is connected to the first conduction end of the MOS tube Q6. The series configuration of the MOS tube Q5 and the MOS tube Q6 forms a current path. The MOS tube Q6 further adjusts the current to ensure that the voltage output is stable and meets the fast charging requirements. The second conduction end of the MOS tube Q6 is connected to the power input end of the voltage stabilizing element U5. The voltage stabilizing element U5 is responsible for converting the current into a stable fast charging voltage and providing it to the wireless charging module to ensure that sufficient power is provided for devices that require fast charging.

[0060] In terms of control logic, the common node between MOS tube Q5 and MOS tube Q6 is connected to the first end of resistor R17. Resistor R17 plays the role of current shunting and voltage adjustment. By controlling the resistance value of resistor R17, the voltage output can be finely adjusted to achieve precise voltage control. The second end of resistor R17 is connected to the first conduction end of transistor Q7. Transistor Q7 acts as an amplifier or switch component to amplify or switch control after the current passes through resistor R17. The second conduction end of transistor Q7 is grounded to ensure that the current can flow normally under the switch control of transistor Q7. The controlled end of transistor Q7 is connected to the first end of resistor R21, and the second end of resistor R21 is connected to the enable signal output end of control module 4. Control module 4 decides whether to enable fast charging mode by sending an enable signal. When the control module 4 outputs an enable signal, the controlled end of the transistor Q7 triggers its switch action, controls the conduction state of the MOS tubes Q5 and Q6, thereby starting the fast charging mode when needed and outputting a stable high voltage (such as 9V or 12V) for fast charging. Through this precise current control and voltage adjustment logic, the system can dynamically adjust the charging power between different devices to ensure efficient and safe charging of the devices.

[0061] Furthermore, in the design of the magnetic mobile power supply, the main purpose of setting two MOS tubes (MOS tube Q5 and MOS tube Q6) with different directions is to prevent the voltage from being reversely connected in series in some cases, thereby ensuring the safety and stability of the charging circuit. Specifically, the configuration of MOS tube Q5 and MOS tube Q6 forms a protection mechanism to prevent reverse voltage series connection: the role of MOS tube Q5 is to control the direction of current flow so that the power input (such as the power supply of the C port) can properly power the system without allowing the external voltage to reversely enter the system. In other words, when the C port charging port receives external power, MOS tube Q5 can be turned on, allowing current to flow to the wireless charging module and the battery. MOS tube Q6 is configured to be reversely conducted. When the wireless charging module attempts to supply power to the C port, MOS tube Q6 will be turned on to ensure that the current can only flow from the wireless charging module to the C port, and the voltage will not be allowed to flow back to the wireless charging module or other circuit parts.

[0062] These two MOS tubes control the flow of current to avoid current series connection due to voltage reversal. For example, if the voltage of the wireless charging module is higher than the input voltage of the C port, it may cause the current to flow in reverse to the C port and damage the power circuit of the C port or cause the device to overheat. With this configuration, the reverse conduction characteristics of MOS tubes Q5 and Q6 ensure the safety of the charging circuit and avoid unnecessary voltage interference or damage even in different charging modes.

[0063] For example: suppose the mobile power bank charges the device through the C port, and also needs to provide power to the mobile phone through wireless charging. In some cases, the wireless charging module may try to input power in the reverse direction through the C port due to low power or other reasons. At this time, the MOS tube Q5 will prevent the current from entering the C port in the reverse direction. When the C port is in the charging state, the MOS tube Q6 will turn on, allowing the current to flow from the wireless charging module to the C port, but will not allow the voltage of the C port to reversely affect the wireless charging module, avoiding the voltage series phenomenon in the system and ensuring the safety and stability of the charging process.

[0064] In summary, the fast charge control unit 31 can accurately control the switching of current and voltage by including components such as MOS tubes Q5, Q6 and transistor Q7, so that under different loads, the power supply can respond quickly and provide a suitable fast charge voltage. In particular, through the configuration of components such as resistors R17 and R21, the output of the fast charge voltage can be accurately adjusted while ensuring the safety of the battery under high current. Through intelligent switch control and current regulation mechanisms, the charging speed can be effectively improved to avoid overcurrent or overvoltage protection triggering, thereby greatly shortening the charging time and optimizing the user's charging experience.

[0065] Further, such as Figure 3 As shown, the wireless charging and power supply module 3 also includes a voltage acquisition unit 33, and the voltage acquisition unit 33 includes a resistor R16, a resistor R19 and a capacitor C21. The common node between the second conduction end of the MOS tube Q6 and the power input end of the voltage stabilizing element U5 is connected to the first end of the resistor R16, the second end of the resistor R16 is connected to the first end of the resistor R19, the second end of the resistor R19 is grounded, and the capacitor C21 is connected between the second end of the resistor R16 and the ground.

[0066] In this embodiment, the voltage acquisition unit 33 in the wireless charging power supply module 3 plays a key role in real-time monitoring of voltage, ensuring that the voltage remains stable during the charging process. The voltage acquisition unit 33 is composed of a resistor R16, a resistor R19 and a capacitor C21, and its function is to accurately collect voltage signals and provide feedback for the control module 4. First, the common node between the second conduction end of the MOS tube Q6 and the power input end of the voltage stabilizing element U5 is connected to the first end of the resistor R16. The MOS tube Q6 controls the output of the voltage by adjusting the current to flow to the voltage stabilizing element U5, and the voltage signal of the common node is sensed by the resistor R16 and transmitted to the next level circuit. The second end of the resistor R16 is connected to the first end of the resistor R19, and this connection forms a voltage divider circuit. The voltage signal is divided by resistors R16 and R19 to ensure that the amplitude of the signal is adapted to the input requirements of the control module 4. The second end of the resistor R19 is grounded to provide a stable reference potential for the voltage divider circuit, thereby ensuring the accuracy of the voltage acquisition process.

[0067] On this basis, the capacitor C21 is connected between the second end of the resistor R16 and the ground. The function of the capacitor C21 is to filter and smooth the voltage fluctuations to avoid the interference caused by the voltage fluctuations affecting the accuracy of voltage acquisition. The capacitor C21 effectively reduces the influence of power supply noise, ensures that the collected voltage signal is more stable and accurate, and is used for subsequent voltage regulation and control. Through this series of connections and signal processing of the voltage acquisition unit 33, the system can obtain the voltage change in real time, and transmit the data to the control module 4, so that the control module 4 can adjust the charging mode or output voltage according to the current voltage condition. This dynamic feedback mechanism ensures the stability of the voltage, and the current and voltage during the charging process can be accurately controlled, thereby improving the safety and charging efficiency of the system.

[0068] In summary, the voltage acquisition unit 33 of the wireless charging power supply module 3 can monitor the charging voltage in real time and transmit the data to the control module 4, so that the control module 4 can dynamically adjust the charging strategy according to the real-time voltage changes. Through the cooperation of resistors R16, R19 and capacitor C21, the voltage acquisition unit 33 can accurately collect voltage data and determine the stability of the output voltage based on these data. This design can effectively prevent charging instability caused by voltage fluctuations, thereby improving charging efficiency, and ensuring that the battery during the charging process will not be damaged by voltage fluctuations, ensuring safe charging of the device.

[0069] Further, such as Figure 2 As shown, the power management module 2 includes a power management chip U1, a resistor R2 and a switch conduction element Q1, the power output end of the power input module 1 is connected to the first conduction end of the switch conduction element Q1, the second conduction end of the switch conduction element Q1 is connected to the first end of the resistor R2, the second end of the resistor R2 is connected to the power input end of the power management chip U1, and the power output end of the power management chip U1 is connected to the power input end of the slow charging control unit 32.

[0070] In this embodiment, the various components in the power management module 2 work together through precise connections and control logic to ensure stable supply and effective management of power. First, the power output end of the power input module 1 is connected to the first conduction end of the switch conduction element Q1. The power input module 1 provides external power input for the system. Q1 is used as a switch conduction element to control the flow of power to the subsequent circuit. Under normal working conditions, the second conduction end of the switch conduction element Q1 is connected to the first end of the resistor R2. This connection ensures that the current enters the power management chip U1 through the resistor R2. The resistor R2 plays a current limiting role here, regulating the current flowing into the power management chip U1, preventing excessive current from entering the chip, and ensuring the safe operation of the power management chip. At the same time, the second end of the resistor R2 is connected to the power input end of the power management chip U1, providing a stable voltage input for the power management chip U1 to process and manage. The power management chip U1 is responsible for adjusting and distributing the power according to system requirements, and transmitting the power at the power output end to the power input end of the slow charging control unit 32, thereby supporting the voltage supply of the slow charging mode.

[0071] The connection logic of the power management module 2 ensures the efficient flow and stable output of power, and can flexibly adjust the current and voltage according to the battery's power requirements and charging status. When the battery power is low, the power management chip U1 will output an appropriate voltage through the slow charging control unit 32 to achieve a smooth charging process; when the battery power is sufficient, the power management module 2 may switch to fast charging mode through intelligent control to ensure an efficient charging experience. The design of the entire power management module 2 effectively avoids the risks brought by overcurrent and voltage instability, improves the charging efficiency and stability of the system, and ensures the safe operation of the battery and equipment during the charging process.

[0072] In summary, the power management module 2 is composed of a power management chip U1 and a switch conduction element Q1, etc., which can efficiently adjust the current and voltage of the input power supply and stably output it to the wireless charging module or mobile power battery. The efficient power conversion and regulation function of the power management chip enables the power supply to provide a stable 5V or 9V voltage according to the device requirements, while ensuring that the battery will not be damaged due to charging too slowly or too quickly. This design not only improves the efficiency and stability of battery charging, but also increases the energy efficiency of the system and avoids energy waste.

[0073] Further, such as Figure 4As shown, the power input module 1 includes a wiring terminal USB1, a resistor R3 and a resistor R4. The power input end of the wiring terminal USB1 is connected to an external power supply, the power output end of the wiring terminal USB1 is connected to the power input end of the power management module 2, and the power output end of the wiring terminal USB1 is connected to the power input end of the fast charging control unit 31. The resistor R3 is connected between the first detection signal output end of the wiring terminal USB1 and the first detection signal input end of the power management chip U1, and the resistor R4 is connected between the second detection signal output end of the wiring terminal USB1 and the second detection signal input end of the power management chip U1. The first detection signal output end and the second detection signal output end of the wiring terminal USB1 are used to identify the direction detection, and then perform the charging operation or discharging operation of the magnetic mobile power supply. The first detection signal output end and the second detection signal output end of the wiring terminal USB1 are respectively Figure 4 The CC1 and CC2 pins in the .

[0074] In this embodiment, the power input module 1 is composed of a wiring terminal USB1, a resistor R3 and a resistor R4, and is responsible for receiving electrical energy from an external power source and distributing it to different circuit modules. The power input end of the wiring terminal USB1 is connected to an external power source to ensure that the system can receive power from an external power source and supply it to other parts of the system. The power output end of the wiring terminal USB1 is connected to the power input end of the power management module 2, and the power management module 2 adjusts the input power according to the needs of the system to ensure voltage and current stability. After adjustment, the power output end supplies power to the slow charging control unit 32 or the fast charging control unit 31 to meet different charging requirements. In addition, the power output end of the wiring terminal USB1 is also directly connected to the power input end of the fast charging control unit 31 to provide the required power for the fast charging control unit 31, ensuring the startup and current supply of the fast charging mode.

[0075] A resistor R3 is connected between the first detection signal output end of the wiring terminal USB1 and the first detection signal input end of the power management chip U1, and a resistor R4 is connected between the second detection signal output end and the second detection signal input end of the power management chip U1. These resistors are used to detect and transmit signals to determine the connection direction of the power supply and determine whether to perform a charging operation or a discharging operation. After the system obtains the direction information of the power connection through these two detection signal ports, the power management chip U1 will determine whether to start the charging operation based on these signals. If a charging signal is received, the power management chip U1 will control the power output and adjust the voltage; if a discharging signal is received, the system will supply power to the wireless charging module or other devices as needed. Through this signal detection and control logic, the system can automatically identify and switch charging modes to achieve more flexible and efficient power management.

[0076] In summary, the power input module 1 can automatically identify the charging mode and switch the corresponding charging mode according to the connection status of the external power supply through the configuration of the wiring terminal USB1 and other components. Through the action of resistors R3 and R4, the wiring terminal can accurately identify the direction detection and ensure the smooth switching of charging and discharging operations. This design ensures that when using a mobile power supply, users can flexibly switch the charging or discharging mode according to different needs, enhance the applicability and flexibility of the device, and thus improve the overall user experience.

[0077] Further, such as Figure 7 As shown, the magnetic wireless charging mobile power control circuit that can charge and discharge quickly also includes a temperature acquisition module, and the temperature acquisition module includes a resistor R27, a thermistor PCBNTC and a capacitor C24. The first end of the resistor R27 is connected to the power supply, the second end of the resistor R27 is connected to the first end of the thermistor PCBNTC, the second end of the thermistor PCBNTC is grounded, the capacitor C24 is connected between the second end of the resistor R27 and the ground, and the common node between the second end of the resistor R27 and the first end of the thermistor PCBNTC is connected to the temperature signal input end of the control module 4.

[0078] In this embodiment, the temperature acquisition module assumes the function of real-time temperature monitoring in the circuit to ensure the temperature control operation during the charging process. When the power supply is connected, the first end of the resistor R27 is connected to the power supply, and the resistor R27 provides a stable current through the power supply, which is used to limit the amount of current flowing into the thermistor PCBNTC. The second end of the resistor R27 is connected to the first end of the thermistor PCBNTC to form a temperature acquisition loop. The thermistor PCBNTC is a temperature sensor, and its resistance changes with temperature. Therefore, the change in the resistance value of the thermistor can reflect the change in temperature in the circuit. The second end of the thermistor PCBNTC is grounded to provide a stable reference potential for it, so that the temperature detection signal can relatively accurately reflect the temperature change of the circuit. In order to further smooth the temperature signal, a capacitor C24 is connected between the second end of the resistor R27 and the ground. The capacitor C24 plays a filtering role, which can effectively reduce the noise caused by power supply fluctuations, ensure the stability of the temperature signal, and make the temperature data more accurate and reliable.

[0079] The common node between the second end of the resistor R27 and the first end of the thermistor PCBNTC is connected to the temperature signal input end of the control module 4, which means that the temperature data of the temperature acquisition module is transmitted to the control module 4. By receiving this temperature signal, the control module 4 can monitor the temperature changes of the battery and the circuit in real time. When the temperature exceeds the set safety range, the control module 4 can respond accordingly, such as reducing the charging power or switching to a low voltage output mode (such as 5V), thereby preventing battery damage or excessive heating caused by overheating. Through this temperature monitoring and control mechanism, the system can dynamically adjust the output voltage during the charging process, ensure the safety and stability of the charging process, and avoid overheating from causing adverse effects on the equipment.

[0080] In summary, the control circuit of the magnetic mobile power supply that charges and discharges at the same time to achieve fast charging further adds the design of the temperature acquisition module, so that the system can monitor the temperature changes of the battery and circuit in real time. Through the cooperation of thermistor PCBNTC and resistors R27 and C24, the temperature acquisition module can accurately obtain the temperature signal and dynamically adjust the charging process through control module 4. This design effectively avoids battery damage or overheating protection triggering caused by overheating, ensuring that the temperature during charging is always kept within a safe range, thereby improving the safety and charging efficiency of the equipment.

[0081] Furthermore, the power management module is responsible for the charging and discharging functions of the mobile power supply. After the Type-C circuit, i.e., the power input module, is connected to the device, it identifies whether to charge or discharge the device. After the DC-DC step-up and step-down processing in the power management module, it can discharge the power required by the device or charge the battery. The wireless charging and power supply module is the power source for wireless charging. When charging and discharging at the same time, the switch conduction element Q1 and the switch conduction element Q4 are turned on at the same time. At this time, the wireless charging voltage is only 5V, which cannot meet the fast charging requirements. After adding the wireless charging and power supply module, when charging and discharging at the same time, the switch conduction element Q1 and MOS tube Q5 and MOS tube Q6 are turned on at the same time, and the switch conduction element Q4 is turned off. At this time, the power of the Type-C circuit is directly supplied to the wireless charging, which can provide a fast charging voltage of 9V. With a little software processing, the mobile phone can enter the fast charging mode, thereby achieving the effect of quickly charging the mobile phone. As an input circuit, the Type-C circuit is responsible for connecting the external power supply and adjusting the charging mode according to the changes in current and voltage. The traditional charging and discharging circuit does not have a fast charging function. At this time, only the switch conduction element Q1 and the switch conduction element Q4 can be turned on during charging and discharging. Due to lack of technical support, the wireless charging power supply is only 5V and cannot provide a fast charging voltage of 9V.

[0082] like Figure 8As shown, a control method based on a magnetic wireless charging mobile power supply control circuit capable of fast charging while charging is applied to a magnetic wireless charging mobile power supply control circuit capable of fast charging while charging, and the control method includes:

[0083] S10, obtaining attribute information of the wireless charging object, and matching the corresponding charging characteristic process and charging characteristic threshold in the local database according to the attribute information;

[0084] In this embodiment, obtaining the attribute information of the wireless charging object refers to communicating with the wireless charging device (such as a mobile phone, headphones, etc.) through the wireless charging module to identify the key parameters such as the type of charging device, charging protocol support, and battery status. Through these attribute information, the system queries the charging characteristic process and charging characteristic threshold in the local database to ensure that the system can select the appropriate charging mode according to the device type and charging requirements. For example, if it is detected that the device is a smart phone that supports fast charging, the system will match the corresponding fast charging process from the database, and if it is a low-power device such as headphones, the system will select the corresponding slow charging process. This process can accurately match the device requirements to ensure that the best voltage and current are provided during the charging process.

[0085] S20, extracting a characteristic period in the charging characteristic process, and determining a supply voltage level corresponding to the characteristic period;

[0086] In this embodiment, the characteristic cycle in the charging characteristic process refers to the time period at different stages of the charging process, and each stage may correspond to different voltage and current outputs. For example, the fast charging mode of a mobile phone usually provides a higher voltage and current in the early stage of charging, charges at a higher power when the battery power is low, and when the battery power increases, the voltage and current gradually decrease to protect the battery. The system extracts the duration of each characteristic cycle according to the charging characteristic process and assigns an appropriate voltage to each cycle. For example, in the early stage of charging, the system can output a 9V voltage, and in the later stage of charging, it switches to a 5V voltage to ensure efficiency and safety during the charging process.

[0087] S30, according to the characteristic cycle and the power supply voltage level, determining control parameters of the slow charge control unit 32 and the fast charge control unit 31, the control parameters at least including a cycle parameter and an enable parameter, the enable parameter is used to control the slow charge control unit 32 to be turned on to output the first power supply voltage, or to control the fast charge control unit 31 to be turned on to output the second power supply voltage, the cycle parameter is used to determine the first cycle length of outputting the first power supply voltage, and determine the second cycle length of outputting the second power supply voltage;

[0088] In this embodiment, the control parameters determine whether to enable slow charging or fast charging mode in different time periods by analyzing the characteristic cycle. The cycle parameters are used to define the duration of each charging stage to ensure that the voltage output of each stage meets the requirements of the charging characteristic process. The enable parameter determines the activation and deactivation of the slow charging control unit 32 and the fast charging control unit 31. Specifically, the slow charging control unit 32 is enabled when the battery power is low and outputs a 5V voltage; the fast charging control unit 31 is enabled when the battery power is low and the device supports fast charging, and outputs a 9V or 12V voltage to accelerate charging. Through precise control of the cycle and enable parameters, the system can dynamically adjust the charging voltage according to the device requirements, thereby optimizing the charging speed and charging efficiency.

[0089] S40. If the magnetic mobile power supply is in a power supply state of outputting a second power supply voltage, the charging switching weight is determined to determine whether the charging switching weight exceeds a determined weight threshold. If not, the judgment is continued. If exceeded, the second power supply voltage output by the fast charging control unit 31 is switched to the first power supply voltage output by the slow charging control unit 32.

[0090] In this embodiment, the control parameters determine whether to enable slow charging or fast charging mode in different time periods by analyzing the characteristic cycle. The cycle parameters are used to define the duration of each charging stage to ensure that the voltage output of each stage meets the requirements of the charging characteristic process. The enable parameter determines the activation and deactivation of the slow charging control unit 32 and the fast charging control unit 31. Specifically, the slow charging control unit 32 is enabled when the battery power is low and outputs a 5V voltage; the fast charging control unit 31 is enabled when the battery power is low and the device supports fast charging, and outputs a 9V or 12V voltage to accelerate charging. Through precise control of the cycle and enable parameters, the system can dynamically adjust the charging voltage according to the device requirements, thereby optimizing the charging speed and charging efficiency.

[0091] In summary, the control method of the control circuit for fast charging based on the magnetic mobile power supply while charging and discharging can intelligently match the charging characteristic process and charging characteristic threshold according to the attribute information of the wireless charging object, and adjust the supply voltage in real time. This dynamic control scheme automatically selects fast charging or slow charging mode according to the battery power and temperature changes to ensure the efficiency and safety of the charging process.

[0092] Further, such as Fig. 9 As shown, the step of determining the charging switching weight, and step S40, include:

[0093] S401, acquiring battery data of the magnetic mobile power supply in real time, wherein the battery data at least includes battery power data and battery temperature data;

[0094] In this embodiment, real-time acquisition of battery data means that the system continuously monitors the remaining power and temperature of the battery through the battery management unit to ensure that the battery status during the charging process is within a safe range. The battery power data provides information about the current remaining power of the battery to help determine whether it is necessary to switch the charging mode to optimize the charging efficiency; the battery temperature data reflects the temperature rise of the battery during the charging process. Too high a temperature may mean overcharging or insufficient heat dissipation, and the system needs to adjust the charging strategy based on the temperature data. In this way, the system can grasp the working status of the battery in real time, and decide whether to switch to fast charging mode or slow charging mode based on these data to ensure a safe and efficient charging process.

[0095] S402, obtaining object temperature data of the wireless charging object;

[0096] In this embodiment, based on the QI protocol released by the Wireless Power Consortium, the system can communicate with wireless charging devices (such as smartphones) through the protocol to obtain the temperature information of the device. The QI protocol supports temperature monitoring during the charging process to ensure that the device is not damaged by overheating. The temperature data of the wireless charging object provides real-time temperature information of the device while charging, which is crucial for adjusting the charging strategy. If the device temperature is too high, the system will automatically reduce the charging power to prevent overheating and ensure the safety of the device during the charging process.

[0097] S403, matching corresponding battery weights in a local database according to the battery data;

[0098] In this embodiment, the system searches and matches the corresponding battery weight in the local database based on the real-time battery power and battery temperature data. The battery weight is an indicator that comprehensively evaluates the battery charging status, taking into account multiple factors such as battery power, temperature, and charging history. When the battery power is low and the temperature is suitable, the battery weight is high, and the system will prioritize the fast charging mode; conversely, when the battery power is high or the temperature is too high, the system may switch to slow charging mode to protect the battery and extend the battery life. In this way, the system can intelligently adjust the charging strategy according to the actual state of the battery.

[0099] S404, comparing the object temperature data with the charging characteristic threshold, generating a corresponding comparison result, and matching a corresponding object weight in a local database according to the comparison result;

[0100] In this embodiment, the system compares the acquired temperature data of the wireless charging object with the preset charging characteristic threshold to determine whether the device is in a suitable charging temperature range. The charging characteristic threshold is usually set according to the specifications of the device and the manufacturer's recommended charging conditions. The system determines whether to continue using the fast charging voltage or whether it is necessary to switch to a safe slow charging mode by comparing with these thresholds. If the device temperature is too high, the system will automatically reduce the charging voltage to prevent damage to the device or battery due to overheating. The comparison result will look up the corresponding object weight in the local database, which determines the priority and charging method of the device during the charging process.

[0101] S405: Add the battery weight and the object weight to generate a corresponding charging switching weight.

[0102] In this embodiment, the battery weight and the object weight are added to obtain a comprehensive charging switching weight. This charging switching weight is used to determine whether the charging strategy needs to be adjusted under the current charging conditions. If the charging switching weight is high, it means that the device needs to be charged quickly. At this time, the system will give priority to enabling the fast charging mode to charge the device quickly; if the charging switching weight is low, the system may choose the slow charging mode to avoid excessive power from damaging the battery. Through this weighting mechanism, the system can intelligently adjust the charging method based on a comprehensive evaluation of the battery status and device temperature, ensuring that the charging process is both efficient and safe, optimizing battery charging management, and improving user experience.

[0103] Furthermore, suppose we have a specific application scenario in which a smartphone is using a magnetic mobile power bank for wireless charging, and the system dynamically adjusts the charging strategy according to the battery power and temperature; based on the battery data obtained in step S401, the system searches the local database for the weights corresponding to the battery power and temperature. For example, when the battery power is 30% and the temperature is 38°C, the system matches a battery weight value of "3". This battery weight indicates that the current battery is in the medium-low power range and the temperature is moderate, which is suitable for fast charging, but temperature changes still need to be noted; through the device temperature data (40°C) obtained in step S402 and the charging characteristic threshold (for example, 40°C), the system finds that the device temperature is close to the upper limit after comparison, so the generated comparison result shows "high temperature warning". Based on this result, the system searches the local database for weights that match the high temperature condition and finds a corresponding object weight value of "2". This indicates that due to the high temperature, the system needs to reduce the charging power to prevent the device from overheating; in steps S403 and S404, the battery weight is "3" and the object weight is "2". The system adds the two together to obtain a charging switching weight of "5". Since the charge switching weight is high, the system decides to continue in fast charge mode, but will reduce the charge current to avoid overheating. If the charge switching weight is low, the system may switch to slow charge mode to further reduce the temperature;

[0104] Through these five steps, the system can calculate a comprehensive charging switching weight based on the real-time battery power, temperature data, and temperature data of the wireless charging device. Through intelligent control, the system can avoid overheating while ensuring fast charging, thereby improving charging efficiency and protecting the safety of the device. In this embodiment, although the battery power is low, the temperature of the device is high. The system adjusts the charging mode in time through weighted judgment to ensure balance and safety during the charging process.

[0105] In summary, by obtaining the charging switching weight in real time and making judgments, the system can automatically adjust the output voltage when the charging switching conditions are met, thereby avoiding current overload and overheating problems during the charging process, optimizing the charging efficiency, and improving the overall user experience.

[0106] Those skilled in the art can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional units and modules is used as an example. In actual applications, the above-mentioned functions can be distributed and completed by different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above.

[0107] The embodiments described above are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A magnetic wireless charging mobile power supply control circuit that can charge and discharge quickly at the same time, characterized in that: The magnetic wireless charging mobile power supply control circuit capable of charging and discharging at the same time and fast charging comprises a power input module (1), a power management module (2), a wireless charging power supply module (3) and a control module (4); the wireless charging power supply module (3) comprises a fast charging control unit (31) and a slow charging control unit (32); the power input end of the power input module (1) is connected to an external power supply; the power output end of the power input module (1) is connected to the power input end of the power management module (2); the power output end of the power management module (2) is connected to the power input end of the slow charging control unit (32); the power output end of the slow charging control unit (32) outputs a first power supply voltage for power supply; the power input end of the power input module (1) is connected to the power input end of the power management module (2); the power output end of the power management module (2) is connected to the power input end of the slow charging control unit (32); the power output end of the slow charging control unit (32) outputs a first power supply voltage for power supply; The source output end is connected to the power input end of the fast charging control unit (31), the power output end of the fast charging control unit (31) outputs a second power supply voltage for power supply, wherein the first power supply voltage is less than the second power supply voltage, the enable signal input end of the slow charging control unit (32) is connected to the enable signal output end of the power management module (2), the enable signal input end of the fast charging control unit (31) is connected to the enable signal output end of the control module (4), the data communication end of the control module (4) is connected to the data communication end of the power management module (2), and the control module (4) is used to output the first power supply voltage or the second power supply voltage according to the battery power data in the power management module (2); The fast charge control unit (31) comprises a MOS tube Q5, a MOS tube Q6, a resistor R17, a resistor R21 and a transistor Q7, wherein the first conduction end of the MOS tube Q5 is connected to the power output end of the power input module (1), the second conduction end of the MOS tube Q5 is connected to the first conduction end of the MOS tube Q6, the second conduction end of the MOS tube Q6 is connected to the power input end of the voltage stabilizing element U5, the common node between the second conduction end of the MOS tube Q5 and the first conduction end of the MOS tube Q6 is connected to the first end of the resistor R17, the second end of the resistor R17 is connected to the first conduction end of the transistor Q7, the second conduction end of the transistor Q7 is grounded, the controlled end of the transistor Q7 is connected to the first end of the resistor R21, and the second end of the resistor R21 is connected to the enable signal output end of the control module (4); The wireless charging and power supply module (3) further comprises a voltage collection unit (33), the voltage collection unit (33) comprising a resistor R16, a resistor R19 and a capacitor C21, a common node between the second conduction end of the MOS tube Q6 and the power input end of the voltage stabilizing element U5 is connected to the first end of the resistor R16, the second end of the resistor R16 is connected to the first end of the resistor R19, the second end of the resistor R19 is grounded, and the capacitor C21 is connected between the second end of the resistor R16 and the ground.

2. According to claim 1, a magnetic wireless charging mobile power supply control circuit capable of fast charging while charging and discharging, characterized in that: The wireless charging power supply module (3) also includes a voltage stabilizing element U5, the power input end of the voltage stabilizing element U5 is connected to the power output end of the slow charging control unit (32), the voltage detection signal output end of the voltage stabilizing element U5 is connected to the voltage detection signal input end of the control module (4), the current detection signal output end of the voltage stabilizing element U5 is connected to the current detection signal input end of the control module (4), the power input end of the voltage stabilizing element U5 is connected to the power output end of the fast charging control unit (31), and the voltage stabilizing element U5 is used to stably output the first power supply voltage or the second power supply voltage.

3. According to claim 2, a magnetic wireless charging mobile power supply control circuit capable of fast charging while charging and discharging, characterized in that: The slow charging control unit (32) comprises a switch conduction element Q4, the power input end of the switch conduction element Q4 is connected to the power output end of the power management module (2), the power output end of the switch conduction element Q4 is connected to the power input end of the voltage stabilizing element U5, and the controlled end of the switch conduction element Q4 is connected to the enable signal output end of the power management module (2).

4. According to the control circuit of a magnetic wireless charging mobile power supply capable of fast charging and discharging at the same time as claimed in claim 1, it is characterized in that: The power management module (2) comprises a power management chip U1, a resistor R2 and a switch conduction element Q1; the power output end of the power input module (1) is connected to the first conduction end of the switch conduction element Q1; the second conduction end of the switch conduction element Q1 is connected to the first end of the resistor R2; the second end of the resistor R2 is connected to the power input end of the power management chip U1; and the power output end of the power management chip U1 is connected to the power input end of the slow charging control unit (32).

5. A magnetic wireless charging mobile power supply control circuit capable of fast charging while charging and discharging according to claim 4, characterized in that: The power input module (1) comprises a wiring terminal USB1, a resistor R3 and a resistor R4, the power input end of the wiring terminal USB1 is connected to an external power supply, the power output end of the wiring terminal USB1 is connected to the power input end of the power management module (2), the power output end of the wiring terminal USB1 is connected to the power input end of the fast charging control unit (31), the resistor R3 is connected between the first detection signal output end of the wiring terminal USB1 and the first detection signal input end of the power management chip U1, the resistor R4 is connected between the second detection signal output end of the wiring terminal USB1 and the second detection signal input end of the power management chip U1, and the first detection signal output end and the second detection signal output end of the wiring terminal USB1 are used to identify direction detection, thereby performing a charging operation or a discharging operation of the magnetic mobile power supply.

6. A magnetic wireless charging mobile power supply control circuit capable of fast charging while charging and discharging according to claim 1, characterized in that: The control circuit of a magnetic wireless charging mobile power source capable of fast charging while charging also includes a temperature acquisition module, the temperature acquisition module including a resistor R27, a thermistor PCBNTC and a capacitor C24, the first end of the resistor R27 being connected to a power source, the second end of the resistor R27 being connected to a first end of the thermistor PCBNTC, the second end of the thermistor PCBNTC being grounded, the capacitor C24 being connected between the second end of the resistor R27 and the ground, and the common node between the second end of the resistor R27 and the first end of the thermistor PCBNTC being connected to a temperature signal input end of the control module (4).

7. A control method based on a magnetic wireless charging mobile power supply control circuit capable of charging and discharging fast at the same time, applied to a magnetic wireless charging mobile power supply control circuit capable of charging and discharging fast at the same time as claimed in any one of claims 1 to 6, characterized in that: The control method comprises: Acquire attribute information of the wireless charging object, and match the corresponding charging characteristic process and charging characteristic threshold in the local database according to the attribute information; Extracting a characteristic period in the charging characteristic process, and determining a supply voltage level corresponding to the characteristic period; Determine control parameters of a slow charge control unit and a fast charge control unit according to the characteristic cycle and the supply voltage level, wherein the control parameters include at least a cycle parameter and an enable parameter, wherein the enable parameter is used to control the slow charge control unit to be turned on to output a first supply voltage, or to control the fast charge control unit to be turned on to output a second supply voltage, and the cycle parameter is used to determine a first cycle duration of outputting the first supply voltage, and to determine a second cycle duration of outputting the second supply voltage; If the magnetic mobile power supply is in a power supply state of outputting a second power supply voltage, the charging switching weight is determined to determine whether the charging switching weight exceeds a determined weight threshold. If not, the judgment continues. If exceeded, the second power supply voltage output by the fast charging control unit is switched to the first power supply voltage output by the slow charging control unit.

8. A control method for a magnetic wireless charging mobile power supply control circuit based on fast charging while charging and discharging according to claim 7, characterized in that: The step of determining the charging switching weight comprises: Acquire battery data of the magnetic mobile power supply in real time, wherein the battery data at least includes battery power data and battery temperature data; Acquire object temperature data of the wireless charging object; According to the battery data, matching corresponding battery weights in a local database; Comparing the object temperature data with the charging characteristic threshold, generating a corresponding comparison result, and matching a corresponding object weight in a local database according to the comparison result; The battery weight and the object weight are added together to generate a corresponding charging switching weight.

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