Novel Q-value wake-up circuit suitable for magnetic power bank

Abstract

The invention relates to a novel Q-value wake-up circuit suitable for a magnetic power bank, and the circuit comprises a power management module, a main control module, a wireless charging module, and a Q-value wake-up module, and the power management module is used for supplying power to the wireless charging module. The wireless power output end of the wireless charging module outputs a power supply to supply power to a device to be charged, the power signal input end of the Q value awakening module is connected with the wireless power output end of the wireless charging module, and the awakening signal output end of the Q value awakening module is connected with the awakening signal input end of the main control module. The wake-up signal output end of the main control module is connected with the wake-up signal input end of the power management module; real-time monitoring and response to the low-power-consumption standby state are achieved through the Q value awakening module, and the requirement that in a traditional scheme, starting voltage needs to be provided for the wireless charging SOC through a physical key or an additional DC-DC booster circuit is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of Q-value wake-up circuits, and in particular to a novel Q-value wake-up circuit suitable for a magnetic power bank. Background Art

[0002] At present, in the development process of magnetic power banks, in order to improve the user experience, it is particularly important to add the function of charging as soon as the phone is placed on the power bank (that is, the phone can automatically start charging when it is placed on the power bank without pressing a physical button). However, although the current solutions in the industry can achieve this function, they have the problems of high cost and insufficient reliability. The main reason is that the operating voltage of most existing wireless charging SOCs is usually above 4V, which means that when the Q value detection function is required to wake up the wireless charging, it is necessary to ensure that the wireless charging SOC has sufficient operating voltage. However, since the Q value detection is usually triggered when the wireless charging module is in a low-power standby state, the system power supply voltage is not enough to meet the working requirements of the wireless charging SOC. Therefore, the common solution in the industry is to add a small DC-DC conversion circuit to provide a stable operating voltage for the wireless charging SOC by boosting. Although this method can realize the Q value detection wake-up function, it also brings a significant increase in cost and occupies more PCB design area. Summary of the invention

[0003] In order to solve the problem of increasing cost, occupying large PCB area and insufficient reliability when waking up wireless charging by adding a small DC-DC conversion circuit to ensure that the wireless charging SOC has sufficient operating voltage, this application provides a new Q value wake-up circuit suitable for a magnetic power bank.

[0004] A novel Q-value wake-up circuit suitable for a magnetic power bank, the novel Q-value wake-up circuit suitable for a magnetic power bank comprises a power management module, a main control module, a wireless charging module and a Q-value wake-up module, the power management module is used to supply power to the wireless charging module, the wireless power output end of the wireless charging module outputs power to power a device to be charged, the power signal input end of the Q-value wake-up module is connected to the wireless power output end of the wireless charging module, the wake-up signal output end of the Q-value wake-up module is connected to the wake-up signal input end of the main control module, and the wake-up signal output end of the main control module is connected to the wake-up signal input end of the power management module; When the device to be charged is placed in the charging area and the wireless charging module is powered off, the wireless charging module generates a corresponding power signal based on the electromagnetic coupling between the wireless charging module and the device to be charged. After the Q value wake-up module detects the power signal, it sends the corresponding wake-up signal to the power management module through the main control module to automatically wake up the power management module in a dormant state, and then power on the wireless charging module.

[0005] By adopting the above technical solution, by introducing the Q-value wake-up module, and utilizing the electromagnetic coupling characteristics between the wireless charging module and the device to be charged, when the device to be charged is placed in the charging area, the wireless charging module will generate a weak power signal due to electromagnetic induction. The core function of the Q-value wake-up module is to detect this power signal in real time and use it as input, and generate a wake-up signal through signal processing. The wake-up signal is transmitted to the main control module, and the main control module further generates a wake-up instruction and sends it to the power management module after judging the validity of the signal according to the preset logic. After receiving the wake-up instruction, the power management module switches from the sleep state to the working state, provides sufficient working power for the wireless charging module, and thus starts the entire wireless charging process. The Q-value wake-up module realizes real-time monitoring and response to the low-power standby state, avoiding the need to provide the wireless charging SOC with a starting voltage through a physical button or an additional DC-DC boost circuit in the traditional solution. The Q-value wake-up module can directly use the weak signal generated by the electromagnetic coupling characteristics of the wireless charging module to start the circuit, which not only reduces the complexity of the system, but also significantly reduces the cost and PCB design space. In addition, the design ensures the reliability of the wake-up signal processing process through the participation of the main control module, avoiding false wake-up or non-wake-up, so that the entire system can reduce costs while improving user experience and system reliability.

[0006] Preferably, the Q value wake-up module includes a resistor R29, a resistor R30, a capacitor C11 and a transistor Q3, the first end of the resistor R29 is connected to the power supply, the second end of the resistor R29 is connected to the first conduction end of the transistor Q3, the second conduction end of the transistor Q3 is grounded, the first end of the resistor R30 is connected to the wireless power output end of the wireless charging module, the second end of the resistor R30 is connected to the controlled end of the transistor Q3, and the capacitor C11 is connected between the second end of the resistor R29 and the ground.

[0007] By adopting the above technical solution, the resistors, capacitors and transistors in the Q-value wake-up module can work together to amplify and process the weak power signal generated by the wireless charging module, thereby achieving accurate generation of the wake-up signal, and transmitting the wake-up signal to the power management module through the main control module, ensuring that the entire circuit can still achieve accurate wake-up function in a low power consumption state, thereby improving the reliability and response speed of the system.

[0008] Preferably, the wireless charging module includes an input control unit, a bridge driver chip and a resonance unit, the power input end of the input control unit is connected to the power input and output ends of the power management module, the power output end of the input control unit is connected to the power input end of the bridge driver chip, the power output end of the bridge driver chip is connected to the power input end of the resonance unit, and the resonance unit is used to convert the input power into high-frequency alternating current, and transmit energy to the device to be charged through the wireless charging coil in the resonance unit.

[0009] By adopting the above technical solution, an efficient power conversion circuit can be formed through the input control unit, bridge driver chip and resonance unit in the wireless charging module, the power input is converted into high-frequency alternating current, and the power is stably transmitted to the device to be charged through the wireless charging coil, thereby improving the energy transmission efficiency and ensuring the power supply stability of the charging device.

[0010] Preferably, the resonant unit includes a resonant capacitor group, a resistor R46, a capacitor C43 and a wireless charging coil, the first PWM signal end of the bridge driving chip is connected to the LP1 end of the wireless charging coil, the second PWM signal end of the bridge driving chip is connected to the first conduction end of the resonant capacitor group, the second conduction end of the resonant capacitor group is connected to the LP2 end of the wireless charging coil, the common node between the first PWM signal end of the bridge driving chip and the LP1 end of the wireless charging coil is connected to the first end of the resistor R46, the second end of the resistor R46 is connected to the first end of the capacitor C43, and the common node between the second conduction end of the resonant capacitor group and the LP2 end of the wireless charging coil is connected to the second end of the capacitor C43 on the one hand, and to the power signal input end of the Q value wake-up module on the other hand.

[0011] By adopting the above technical solution, an efficient resonant circuit can be formed through the cooperation of the capacitor group, resistor and inductor in the resonant unit, thereby achieving efficient energy transmission in the wireless charging coil. At the same time, the electromagnetic coupling signal can be enhanced through the resonance characteristics, ensuring that the Q value wake-up module can accurately detect the power signal, thereby further improving the stability and wake-up sensitivity of the system.

[0012] Preferably, the resonant capacitor group includes capacitor C53, capacitor C55, capacitor C56 and capacitor C58, and the capacitor C53, the capacitor C55, the capacitor C56 and the capacitor C58 are arranged in parallel.

[0013] By adopting the above technical solution, the parallel structure of the resonant capacitor group can achieve balanced capacitance distribution during high-frequency resonance, thereby improving the capacitance stability and reliability of the resonant unit, while reducing the capacitor heat loss and power attenuation under high-frequency working conditions, thereby improving the efficiency and durability of the system.

[0014] Preferably, the input control unit includes a MOS tube Q2, a transistor Q5, a resistor R16 and a resistor R31, the first conduction end of the MOS tube Q2 is connected to the power input and output end of the power management module, the second conduction end of the MOS tube Q2 is connected to the power input end of the bridge driver chip, the first end of the resistor R16 is connected to the power input and output end of the power management module, the second end of the resistor R16 is connected to the first end of the transistor Q5, the second end of the transistor Q5 is grounded, the controlled end of the transistor Q5 is connected to the first end of the resistor R31, and the second end of the resistor R31 is connected to the first enable signal output end of the main control module.

[0015] By adopting the above technical solution, the combined design of the MOS tube, transistor and resistor in the input control unit can be used to effectively control the power input and the power supply of the bridge driver chip, thereby ensuring accurate regulation of the circuit current and voltage in different working modes, avoiding circuit overload or undervoltage problems, and improving the safety and adaptability of the system.

[0016] Preferably, the input control unit includes a MOS tube Q4, a MOS tube Q6, a resistor R17, a resistor R21 and a triode Q7, a first conducting end of the MOS tube Q6 is connected to the positive terminal of the battery, a second conducting end of the MOS tube Q6 is connected to the first conducting end of the MOS tube Q4, the second conducting end of the MOS tube Q4 is connected to the power input terminal of the bridge driving chip, a first conducting end of the triode Q7 is connected to the controlled end of the MOS tube Q4, the first conducting end of the triode Q7 is connected to the controlled end of the MOS tube Q6, the second conducting end of the triode Q7 is grounded, the controlled end of the triode Q7 is connected to the first end of the resistor R17, the second end of the resistor R17 is connected to the second enable signal output terminal of the main control module, a common node between the second conducting end of the MOS tube Q6 and the first conducting end of the MOS tube Q4 is connected to the first end of the resistor R21, and the second end of the resistor R21 is connected to the first conducting end of the triode Q7.

[0017] By adopting the above technical solution, the combined structure of the dual MOS tube and the triode in the input control unit can realize stable control of the battery power output, and at the same time, the enable signal switching function of the triode can realize efficient switching of the power management module and the bridge driver chip, thereby ensuring a smooth transition of the system between battery power supply and external power supply, and improving the continuity of power supply and the reliability of the system.

[0018] Preferably, the power management module includes a power management chip U1, a TYPEC interface terminal and an inductor L1, the power input and output ports of the power management chip U1 are connected to the power input and output ports of the TYPEC interface terminal, the signal output end of the TYPEC interface terminal is connected to the charge and discharge identification end of the power management chip U1, the battery power output end of the power management chip U1 is connected to the first end of the inductor L1, and the second end of the inductor L1 is connected to the positive end of the battery.

[0019] By adopting the above technical solution, the power management chip in the power management module and the TYPEC interface terminal can be used to realize automatic identification and charge and discharge management of the external power supply and battery, and the current and voltage of the battery output can be adjusted by introducing inductance, thereby improving the system's adaptability to different power supply conditions and ensuring that the charging process is efficient and safe.

[0020] Preferably, the main control module includes a main control chip U3, a light indication unit and a temperature sensing unit. The data communication end of the main control chip U3 is connected to the data communication end of the power management module to automatically wake up the power management module in a sleep state. The main control chip U3 is provided with a plurality of indication signal output ports, each of which is respectively connected to the positive end of the light-emitting diode corresponding to the light indication unit, and the negative end of the light-emitting diode is grounded. The temperature signal input end of the main control chip U3 is connected to the temperature signal output end of the temperature sensing unit.

[0021] By adopting the above technical solution, the main control chip in the main control module and the light indication unit can work together to achieve real-time feedback on the current working status of the equipment. At the same time, the operating temperature of the equipment can be monitored through the cooperation of the temperature sensing unit and the main control chip, so that the working status can be adjusted in time when the system is overheated or low in temperature, thereby improving the safety of equipment operation and user operability.

[0022] Preferably, the temperature sensing unit includes a resistor R15, a thermistor NTC1 and a capacitor C20, the first end of the resistor R15 is connected to a power supply, the second end of the resistor R15 is connected to a first end of the thermistor NTC1, the second end of the thermistor NTC1 is grounded, and the capacitor C20 is connected between the second end of the resistor R15 and the ground.

[0023] By adopting the above technical solution, the combined design of resistors, thermistors and capacitors in the temperature sensing unit can be used to accurately detect temperature changes of the equipment, and transmit the temperature signals to the main control chip, thereby realizing real-time alarm or adjustment functions for abnormal temperature conditions, avoiding equipment damage or performance degradation due to excessively high or low temperatures, and improving the stability and durability of the system.

[0024] In summary, the present application includes at least one of the following beneficial technical effects: The present invention introduces a Q-value wake-up module and utilizes the electromagnetic coupling characteristics between the wireless charging module and the device to be charged. When the device to be charged is placed in the charging area, the wireless charging module will generate a weak power signal due to electromagnetic induction. The core function of the Q-value wake-up module is to detect this power signal in real time and use it as input, and generate a wake-up signal through signal processing. The wake-up signal is transmitted to the main control module, and the main control module further generates a wake-up instruction and sends it to the power management module after judging the validity of the signal according to the preset logic. After receiving the wake-up instruction, the power management module switches from the sleep state to the working state, provides sufficient working power for the wireless charging module, and thus starts the entire wireless charging process. The Q-value wake-up module realizes real-time monitoring and response to the low-power standby state, avoiding the need to provide a starting voltage for the wireless charging SOC through physical buttons or additional DC-DC boost circuits in the traditional solution. The Q-value wake-up module can directly use the weak signal startup circuit generated by the electromagnetic coupling characteristics of the wireless charging module, which not only reduces the complexity of the system, but also significantly reduces the cost and PCB design space. In addition, the design ensures the reliability of the wake-up signal processing process through the participation of the main control module, avoiding false wake-up or non-wake-up, so that the entire system can reduce costs while improving user experience and system reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a flow chart of a new Q-value wake-up circuit suitable for a magnetic power bank in one embodiment of the present application.

[0026] Figure 2 This is a schematic diagram of a partial circuit structure of a Q-value wake-up module in a novel Q-value wake-up circuit suitable for a magnetic power bank in one embodiment of the present application; Figure 3 It is a schematic diagram of a partial circuit structure of a resonant unit in a novel Q-value awakening circuit suitable for a magnetic power bank in one embodiment of the present application; Figure 4 It is a schematic diagram of a partial circuit structure of an input control unit in a new Q-value wake-up circuit suitable for a magnetic power bank in one embodiment of the present application; Figure 5This is a schematic diagram of a partial circuit structure of a bridge driver chip in a new Q-value wake-up circuit suitable for a magnetic power bank in one embodiment of the present application; Figure 6 This is a schematic diagram of a partial circuit structure of a power management module in a new Q-value wake-up circuit suitable for a magnetic power bank in one embodiment of the present application; Figure 7 This is a schematic diagram of a partial circuit structure of a main control chip in a new Q-value wake-up circuit suitable for a magnetic power bank in one embodiment of the present application; Figure 8 This is a schematic diagram of a partial circuit structure of a light indication unit in a novel Q-value wake-up circuit suitable for a magnetic power bank in one embodiment of the present application; Fig. 9 It is a schematic diagram of a partial circuit structure of a temperature sensing unit in a new Q-value wake-up circuit suitable for a magnetic power bank in one embodiment of the present application. DETAILED DESCRIPTION

[0027] The present application is further described in detail below in conjunction with the accompanying drawings.

[0028] In one embodiment, if Figure 1 As shown, the present application discloses a novel Q-value wake-up circuit applicable to a magnetic power bank, including: a novel Q-value wake-up circuit applicable to a magnetic power bank, a novel Q-value wake-up circuit applicable to a magnetic power bank includes a power management module, a main control module, a wireless charging module and a Q-value wake-up module, the power management module is used to supply power to the wireless charging module, the wireless power output end of the wireless charging module outputs power to power a device to be charged, the power signal input end of the Q-value wake-up module is connected to the wireless power output end of the wireless charging module, the wake-up signal output end of the Q-value wake-up module is connected to the wake-up signal input end of the main control module, and the wake-up signal output end of the main control module is connected to the wake-up signal input end of the power management module; When the device to be charged is placed in the charging area and the wireless charging module is powered off, the wireless charging module generates a corresponding power signal based on the electromagnetic coupling between the device to be charged. After the Q value wake-up module detects the power signal, it sends the corresponding wake-up signal to the power management module through the main control module to automatically wake up the power management module in sleep state, and then power on the wireless charging module.

[0029] In this embodiment, the power management module provides working power for the wireless charging module, and transmits power to the wireless charging module through its power output terminal, ensuring that the wireless charging module can continue to power the device to be charged under normal conditions. When the wireless charging module is in standby or power-off state, it can still generate a weak power signal based on the electromagnetic coupling characteristics between the device to be charged, and this signal is transmitted to the power signal input terminal of the Q value wake-up module. The Q value wake-up module amplifies and processes the received power signal through the internal circuit design to generate a valid wake-up signal, which is transmitted to the wake-up signal input terminal of the main control module through its wake-up signal output terminal. After receiving the wake-up signal, the main control module determines the validity of the signal according to the preset control logic, and generates a wake-up instruction through its wake-up signal output terminal and sends it to the wake-up signal input terminal of the power management module. After receiving the wake-up instruction, the power management module switches from the sleep state to the working state, and re-powers the wireless charging module, so that the wireless charging module is powered on and starts to operate normally, thereby providing continuous power supply for the device to be charged. The entire control logic is based on signal transmission between modules. It is triggered by the electromagnetic induction characteristics of the wireless charging module, and the Q value wake-up module realizes signal detection and conversion. Finally, the main control module coordinates signal transmission and processing to ensure that the power management module can respond in time, realize automatic wake-up and efficient operation of the system. The main purpose of setting the wireless charging module to sleep mode is to reduce the power consumption of the system, extend the standby time of the device, and thus improve the overall user experience. When the wireless charging module does not detect the device to be charged, keeping it in operation will result in unnecessary energy consumption, especially in battery-driven devices such as magnetic power banks, where power resources are very limited. By setting the sleep mode, it is ensured that only very little energy is consumed when the wireless charging module does not need to work. At the same time, the weak signal generated by electromagnetic coupling is used to realize the automatic wake-up function, and the power supply is restored when the device is detected to be placed. This design not only saves energy, but also avoids frequent manual operations, improving the intelligence of the device and the user experience.

[0030] In summary, by introducing the Q-value wake-up module and utilizing the electromagnetic coupling characteristics between the wireless charging module and the device to be charged, when the device to be charged is placed in the charging area, the wireless charging module will generate a weak power signal due to electromagnetic induction. The core function of the Q-value wake-up module is to detect this power signal in real time and use it as input, and generate a wake-up signal through signal processing. The wake-up signal is transmitted to the main control module, which further generates a wake-up command and sends it to the power management module after judging the validity of the signal according to the preset logic. After receiving the wake-up command, the power management module switches from the sleep state to the working state, provides sufficient working power for the wireless charging module, and thus starts the entire wireless charging process. The Q-value wake-up module realizes real-time monitoring and response to the low-power standby state, avoiding the need to provide the wireless charging SOC with a starting voltage through a physical button or an additional DC-DC boost circuit in the traditional solution. The Q-value wake-up module can directly use the weak signal generated by the electromagnetic coupling characteristics of the wireless charging module to start the circuit, which not only reduces the complexity of the system, but also significantly reduces the cost and PCB design space. In addition, the design ensures the reliability of the wake-up signal processing process through the participation of the main control module, avoiding false wake-up or non-wake-up, so that the entire system can reduce costs while improving user experience and system reliability.

[0031] Further, such as Figure 2 As shown, the Q value wake-up module includes a resistor R29, a resistor R30, a capacitor C11 and a transistor Q3, the first end of the resistor R29 is connected to the power supply, the second end of the resistor R29 is connected to the first conduction end of the transistor Q3, the second conduction end of the transistor Q3 is grounded, the first end of the resistor R30 is connected to the wireless power output end of the wireless charging module, the second end of the resistor R30 is connected to the controlled end of the transistor Q3, and the capacitor C11 is connected between the second end of the resistor R29 and the ground.

[0032] In this embodiment, the detection and processing of the signal generated by the wireless charging module is realized through the coordinated action of resistor R29, resistor R30, capacitor C11 and transistor Q3, and a wake-up signal is generated. The first end of resistor R29 is connected to the power supply to provide a stable voltage input, and the second end is connected to the first conduction end of transistor Q3. At the same time, the node is also connected to the ground through capacitor C11 to filter out high-frequency interference signals and stabilize the voltage reference of the circuit. The second conduction end of transistor Q3 is grounded to ensure that the circuit can form a loop when it is working, thereby realizing conduction control. The first end of resistor R30 is connected to the wireless power output end of the wireless charging module, which is used to receive the power signal generated by the wireless charging module and transmit the signal to the controlled end of transistor Q3. The strength of this signal is adjusted by resistor R30 to control whether transistor Q3 is turned on or not. When the power signal generated by the wireless power output end of the wireless charging module is strong enough, it is transmitted to the controlled end of the transistor Q3 through the resistor R30, triggering the transistor Q3 to turn on, forming a low-level signal, which is output to the subsequent circuit as a wake-up signal, thereby realizing the wake-up function. This design logic can achieve accurate detection of the wireless charging module signal through the coordination of resistors, capacitors and transistors, and can avoid false triggering when the signal is weak, ensuring the stability and reliability of the entire system; Specifically, resistor R29 plays the role of voltage division and current limiting, and its first end is connected to the power supply to provide a stable bias voltage for transistor Q3. By limiting the current, resistor R29 protects subsequent circuit components and prevents the input signal from being too strong and causing circuit overload. At the same time, its second end is grounded through capacitor C11 to provide a stable reference voltage for the circuit and suppress possible high-frequency noise; the main function of resistor R30 is to limit the current and adjust the signal of the power signal from the wireless power output end of the wireless charging module. It transmits the signal to the controlled end (base or gate, depending on the type of transistor) of transistor Q3, and controls the conduction condition of the transistor by matching the characteristics of Q3. Resistor R30 ensures that the transmitted signal level is suitable for the input requirements of the transistor, while preventing high current from directly affecting the working stability of the transistor; transistor Q3 is the core control element in the circuit, responsible for detecting and amplifying the signal from the wireless charging module. Its controlled end is connected to resistor R30 to receive the power signal from the wireless charging module. When the input signal reaches the conduction threshold, Q3 is turned on, pulling the potential of the first conduction end down to the ground potential, and outputting a low-level signal. This low-level signal is used as a wake-up signal to trigger the action of the subsequent circuit. The role of transistor Q3 ensures the sensitivity and accuracy of the entire wake-up circuit in signal detection and output response.

[0033] In summary, the resistors, capacitors and transistors in the Q-value wake-up module can work together to amplify and process the weak power signal generated by the wireless charging module, thereby achieving accurate generation of the wake-up signal, and transmitting the wake-up signal to the power management module through the main control module, ensuring that the entire circuit can still achieve accurate wake-up function in a low-power state, thereby improving the reliability and response speed of the system.

[0034] Further, such as Figure 3-Figure 5 As shown, the wireless charging module includes an input control unit, a bridge driver chip and a resonance unit. The power input end of the input control unit is connected to the power input and output ends of the power management module, the power output end of the input control unit is connected to the power input end of the bridge driver chip, and the power output end of the bridge driver chip is connected to the power input end of the resonance unit. The resonance unit is used to convert the input power into high-frequency alternating current and transmit energy to the device to be charged through the wireless charging coil in the resonance unit.

[0035] In this embodiment, the wireless charging module is composed of an input control unit, a bridge driver chip and a resonance unit. The modules realize the functions of energy transmission and signal processing through clear port connections and logical collaboration. The power input end of the input control unit is connected to the power input and output end of the power management module, which is responsible for receiving the DC power provided by the power management module, and stabilizing and adjusting the input power through its internal control circuit to ensure that the voltage and current of the output power are adapted to the subsequent circuit requirements. The power output end of the input control unit is connected to the power input end of the bridge driver chip. After the bridge driver chip receives the DC power, it converts the DC power into high-frequency AC power through its internal full-bridge or half-bridge structure, and provides the required high-frequency AC power to the resonance unit. The power output end of the bridge driver chip is connected to the power input end of the resonance unit. The resonance unit modulates and enhances the received high-frequency AC power through its internal resonance circuit to ensure that the resonance frequency matches the wireless charging frequency designed by the system. The wireless charging coil in the resonance unit plays a key role in this process. It converts the high-frequency AC power into magnetic field energy through electromagnetic induction, and transmits energy to the device to be charged to achieve contactless power supply. The entire circuit logic forms a complete and efficient wireless charging link through power regulation of the input control unit, energy conversion of the bridge driver chip, and resonant matching and electromagnetic energy transmission of the resonant unit, ensuring that energy is reliably transmitted from the power management module to the device to be charged.

[0036] In summary, an efficient power conversion circuit can be formed through the input control unit, bridge driver chip and resonance unit in the wireless charging module to convert the power input into high-frequency alternating current, and the power can be stably transmitted to the device to be charged through the wireless charging coil, thereby improving the energy transmission efficiency and ensuring the power supply stability of the charging device.

[0037] Further, such as Figure 3 As shown, the resonant unit includes a resonant capacitor group, a resistor R46, a capacitor C43 and a wireless charging coil, the first PWM signal end of the bridge driving chip is connected to the LP1 end of the wireless charging coil, the second PWM signal end of the bridge driving chip is connected to the first conduction end of the resonant capacitor group, the second conduction end of the resonant capacitor group is connected to the LP2 end of the wireless charging coil, the first PWM signal end of the bridge driving chip and the LP1 end of the wireless charging coil are connected to the first end of the resistor R46, the second end of the resistor R46 is connected to the first end of the capacitor C43, the second conduction end of the resonant capacitor group and the LP2 end of the wireless charging coil are connected to the second end of the capacitor C43 on the one hand, and to the power signal input end of the Q value wake-up module on the other hand.

[0038] In this embodiment, the resonance unit realizes the resonance and transmission of high-frequency energy through the cooperation of the resonant capacitor group, the resistor R46, the capacitor C43 and the wireless charging coil. The connection relationship and logic design of each port ensure the functional stability of the circuit and the accuracy of signal processing. The first PWM signal end of the bridge driver chip is connected to the LP1 end of the wireless charging coil, which is used to provide a high-frequency pulse signal to the wireless charging coil to drive the coil to generate a high-frequency magnetic field. The second PWM signal end of the bridge driver chip is connected to the first conduction end of the resonant capacitor group, and the second conduction end of the resonant capacitor group is further connected to the LP2 end of the wireless charging coil to form a complete resonant loop. The resonant loop adjusts the resonant frequency of the system through the resonant capacitor group to match the design frequency of the wireless charging system, thereby optimizing the power transmission efficiency. The common node between the first PWM signal end of the bridge driver chip and the LP1 end of the wireless charging coil is connected to the first end of the capacitor C43 through the resistor R46. The existence of the resistor R46 limits the influence of the current mutation on the capacitor C43, and provides a certain impedance matching for the subsequent circuit. The second end of capacitor C43 is connected to the common node between the second conduction end of the resonant capacitor group and the LP2 end of the wireless charging coil. This node is not only an important part of the resonant circuit, but also transmits the electromagnetic coupling signal in the resonant circuit to the wake-up module by connecting to the power signal input end of the Q-value wake-up module. Through this connection design, the resonant unit can not only ensure the efficient transmission of high-frequency energy, but also extract weak signals through the common node to supply the Q-value wake-up module to realize signal detection and subsequent processing. The entire control logic provides technical support for the stable operation and automatic wake-up function of the wireless charging system through the efficient resonance of the resonant circuit and the precise extraction and transmission of signals; Specifically, the main function of the resonant capacitor group is to cooperate with the wireless charging coil to form a resonant circuit. Through its resonant characteristics, the resonant capacitor group can adjust the resonant frequency of the entire system to match the operating frequency of the wireless charging module, thereby improving the efficiency and stability of energy transmission. In addition, the resonant capacitor group adopts a parallel design, which can share the voltage and current load, reduce the working pressure of a single capacitor, and improve the reliability and durability of the circuit; the main function of resistor R46 is to limit the amplitude of the transient current in the circuit, and play the role of current limiting and impedance matching. In a high-frequency resonant environment, R46 can suppress the current spike caused by the PWM signal of the bridge driver chip and protect subsequent components such as capacitor C43 from impact. In addition, it can also reduce high-frequency interference in the signal and optimize the performance of the resonant circuit; the function of capacitor C43 is to filter and smooth the signal. It buffers the signal fluctuations in the resonant circuit through a combination with R46, filters out high-frequency noise and transient spike signals, and ensures that the signal sent to the Q value wake-up module is more stable and accurate. At the same time, capacitor C43 provides certain support for the stability of the resonant circuit, which helps to maintain the normal operation of the resonant circuit at the designed frequency; the wireless charging coil is the core component of the resonant unit, and its function is to achieve energy transmission through electromagnetic induction. When the bridge driver chip provides high-frequency alternating current to the coil, the coil generates a high-frequency magnetic field and transmits the magnetic field energy to the receiving coil of the device to be charged in a non-contact manner. The wireless charging coil also adjusts the working state through the resonant circuit, and together with the resonant capacitor group, ensures the energy transmission efficiency of the entire wireless charging system.

[0039] In summary, the capacitor group, resistor and inductor in the resonance unit work together to form an efficient resonant circuit, thereby achieving efficient energy transmission in the wireless charging coil. At the same time, the electromagnetic coupling signal is enhanced through the resonance characteristics, ensuring that the Q value wake-up module can accurately detect the power signal, thereby further improving the stability and wake-up sensitivity of the system.

[0040] Further, such as Figure 3 As shown, the resonant capacitor group includes capacitor C53, capacitor C55, capacitor C56 and capacitor C58, and capacitor C53, capacitor C55, capacitor C56 and capacitor C58 are arranged in parallel.

[0041] In this embodiment, the resonant capacitor group is composed of capacitor C53, capacitor C55, capacitor C56 and capacitor C58, and all capacitors are connected in parallel. The connection relationship and logic design ensure the stability and reliability of the resonant circuit. Through the parallel connection, the voltage across each capacitor remains the same, but its current is distributed according to the capacitance value of each capacitor. The parallel design logic can significantly increase the total capacitance value, thereby adjusting the resonant frequency to the required operating frequency to adapt to the operation requirements of the wireless charging module. At the same time, through the sharing effect of multiple capacitors, the current load of a single capacitor can be effectively reduced, and the heat and stress under high-frequency operation can be reduced, thereby improving the durability and performance stability of the entire circuit. When each capacitor works in parallel, its total capacitance value is the algebraic sum of each capacitance value. This feature enables the system to provide greater energy storage capacity when working at high frequency, and enhances the regulation and storage effect of the resonant circuit on energy. In addition, the parallel capacitor group can also disperse the power distribution in the resonant circuit to avoid failure caused by a single capacitor carrying too much power, thereby further improving the reliability and safety of the system. This design logic provides stable parameter support for the resonant circuit by making full use of the parallel characteristics of capacitors, ensuring that the entire wireless charging system has greater durability and adaptability while operating efficiently.

[0042] In summary, the parallel structure of the resonant capacitor group can achieve balanced capacitance distribution during high-frequency resonance, thereby improving the capacitance stability and reliability of the resonant unit, while reducing the capacitor heat loss and power attenuation under high-frequency working conditions, thereby improving the efficiency and durability of the system.

[0043] Further, such as Figure 4 As shown, the input control unit includes a MOS tube Q2, a transistor Q5, a resistor R16 and a resistor R31. The first conduction end of the MOS tube Q2 is connected to the power input and output end of the power management module, the second conduction end of the MOS tube Q2 is connected to the power input end of the bridge driver chip, the first end of the resistor R16 is connected to the power input and output end of the power management module, the second end of the resistor R16 is connected to the first end of the transistor Q5, the second end of the transistor Q5 is grounded, the controlled end of the transistor Q5 is connected to the first end of the resistor R31, and the second end of the resistor R31 is connected to the first enable signal output end of the main control module.

[0044] In this embodiment, the input control unit is composed of a MOS tube Q2, a transistor Q5, a resistor R16 and a resistor R31. The modules realize the control of power management and bridge driver chip through precise connection and logic design. The first conductive end of the MOS tube Q2 is connected to the power input and output end of the power management module, which is used to receive the power signal from the power management module. Its second conductive end is connected to the power input end of the bridge driver chip, which is responsible for transmitting the power signal to the bridge driver chip and providing the necessary working voltage and current. The first end of the resistor R16 is also connected to the power input and output end of the power management module. Its function is to divide the input voltage and transmit it to the first end of the transistor Q5. The resistor R16 plays the role of current limiting and voltage dividing here, protecting the transistor Q5 from the impact of excessive current. The second end of the transistor Q5 is grounded, which is used to establish a circuit loop in a controlled state. Its controlled end is connected to the first end of the resistor R31, which is used to receive the control signal transmitted from the first enable signal output end of the main control module. The role of resistor R31 here is to limit the current flowing into the controlled end of transistor Q5 and adjust the signal level to meet the control requirements of transistor Q5. When the main control module outputs an enable signal, the signal is adjusted by resistor R31 to trigger transistor Q5 to turn on, and further control the working state of MOS tube Q2 through resistor R16, thereby realizing the switch control of the power supply of the bridge driver chip. The entire control logic accurately adjusts the working state of the input control unit through the enable signal of the main control module, ensuring that the bridge driver chip can obtain stable power support when needed, while avoiding energy waste in the non-working state, improving the energy efficiency and reliability of the system; Specifically, MOS tube Q2 is used as the main switch element to control the power signal from the power management module to the bridge driver chip. When the controlled end (gate) of MOS tube Q2 receives a suitable drive signal, its first conduction end (source) and the second conduction end (drain) are connected to transmit the power signal to the bridge driver chip to provide it with working voltage and current. The switching action of MOS tube Q2 directly determines the power supply state of the bridge driver chip, and its function is to achieve efficient power control; the function of transistor Q5 is to control the switching state of MOS tube Q2. Its first end (collector) is connected to the power signal through resistor R16, and the second end (emitter) is grounded. The controlled end (base) of transistor Q5 receives the enable signal from the main control module through resistor R31. When the main control module outputs a high-level enable signal, the base current of transistor Q5 triggers it to turn on, thereby transmitting the voltage signal on resistor R16 to the gate of MOS tube Q2, turning on MOS tube Q2 and completing the power supply control of the bridge driver chip; the function of resistor R16 is to limit the current and divide the voltage of the power supply signal, and at the same time provide working voltage for transistor Q5. When transistor Q5 is turned on, R16 limits the current flowing into transistor Q5 to protect Q5 from excessive current shock. In addition, R16 pre-processes the gate signal of MOS tube Q2 to ensure that the signal strength is sufficient to make Q2 turn on normally, thereby improving the safety and stability of the circuit; resistor R31 is connected between the enable signal output end of the main control module and the base of transistor Q5, and plays the role of current limiting and level adjustment. It limits the current of the output signal of the main control module flowing into the base of the transistor Q5 to avoid damage to Q5 due to excessive current. At the same time, it adjusts the amplitude of the enable signal through its resistance value to adapt it to the working requirements of the transistor Q5 and ensure the stability of the trigger control.

[0045] In summary, through the combined design of MOS tubes, transistors and resistors in the input control unit, effective control of the power input and the power supply of the bridge driver chip can be achieved, thereby ensuring precise adjustment of the circuit current and voltage in different working modes, avoiding circuit overload or undervoltage problems, and thus improving the safety and adaptability of the system.

[0046] Further, such as Figure 4As shown, the input control unit includes a MOS transistor Q4, a MOS transistor Q6, a resistor R17, a resistor R21 and a triode Q7, a first conduction end of the MOS transistor Q6 is connected to the positive terminal of the battery, a second conduction end of the MOS transistor Q6 is connected to the first conduction end of the MOS transistor Q4, the second conduction end of the MOS transistor Q4 is connected to the power input terminal of the bridge driving chip, a first conduction end of the triode Q7 is connected to the controlled end of the MOS transistor Q4, the first conduction end of the triode Q7 is connected to the controlled end of the MOS transistor Q6, the second conduction end of the triode Q7 is grounded, the controlled end of the triode Q7 is connected to the first end of the resistor R17, the second end of the resistor R17 is connected to the second enable signal output terminal of the main control module, a common node between the second conduction end of the MOS transistor Q6 and the first conduction end of the MOS transistor Q4 is connected to the first end of the resistor R21, and the second end of the resistor R21 is connected to the first conduction end of the triode Q7.

[0047] In this embodiment, in the design of the input control unit, MOS tube Q4, MOS tube Q6, resistor R17, resistor R21 and transistor Q7 realize the power control between the battery and the bridge driver chip through precise port connection and logical relationship. The first conduction end of MOS tube Q6 is connected to the positive terminal of the battery for receiving the power signal from the battery, and its second conduction end is connected to the first conduction end of MOS tube Q4 to form a power transmission path. The second conduction end of MOS tube Q4 is connected to the power input end of the bridge driver chip, which is responsible for transmitting the power signal to the bridge driver chip to provide stable voltage and current for its operation. The first conduction end of transistor Q7 is respectively connected to the controlled ends of MOS tube Q4 and MOS tube Q6, which plays the role of switch control. The second conduction end of transistor Q7 is grounded to form a loop of the control circuit. The controlled end of transistor Q7 is connected to the first end of resistor R17 to receive the control signal transmitted from the second enable signal output end of the main control module. Resistor R17 limits the current flowing into the controlled end of transistor Q7 to avoid damage to transistor Q7 due to excessive current. The common node between the second conduction end of MOS tube Q6 and the first conduction end of MOS tube Q4 is connected to the first end of resistor R21, which is an important hub for power signal transmission. The second end of resistor R21 is connected to the first conduction end of transistor Q7, which plays a role in voltage division and current limiting in the circuit. When the main control module outputs a high-level signal through the second enable signal output end, the signal is adjusted by resistor R17 to trigger the conduction of transistor Q7. The conduction state of transistor Q7 simultaneously controls the controlled ends of MOS tube Q4 and MOS tube Q6, respectively turning on both, thereby forming a power transmission path from the battery to the bridge driver chip. The entire design is triggered by the signal of the main control module, and the conduction state of the transistor and the MOS tube are adjusted in turn to ensure that the bridge driver chip is powered by the battery only when needed, thereby improving the power consumption management capability and operation reliability of the system; Specifically, MOS tube Q4 is the main switch element of the input control unit, responsible for transmitting the power signal from MOS tube Q6 to the bridge driver chip. When its controlled end (gate) receives the driving signal controlled by transistor Q7, the first conduction end (source) and the second conduction end (drain) of MOS tube Q4 are turned on, thereby providing a stable power signal for the bridge driver chip. The switching state of Q4 directly determines the power supply of the bridge driver chip, and its main function is to achieve precise control of the battery power output; MOS tube Q6 is connected to the positive end of the battery, as the input switch of the power supply, used to control whether the output of the battery power is transmitted to MOS tube Q4. The controlled end (gate) of Q6 is also controlled by transistor Q7, and works with Q4 to form a complete power supply path. Its main function is to ensure that the power output of the battery is only transmitted to the bridge driver chip when needed, to prevent unnecessary power loss; the function of resistor R17 is current limiting and signal conditioning, and its first end is connected to the second enable signal output end of the main control module, and the second end is connected to the controlled end (base) of transistor Q7. When the main control module outputs a signal, R17 protects the transistor from the impact of excessive current by limiting the current flowing into the transistor Q7. At the same time, it adjusts the level of the enable signal to ensure that the transistor Q7 can reliably enter the on state; the resistor R21 is used for voltage division and current limiting. Its first end is connected to the common node between the second on-end of the MOS tube Q6 and the first on-end of the MOS tube Q4, and its second end is connected to the first on-end (collector) of the transistor Q7. It limits the current flowing through the transistor Q7 and protects the working safety of the transistor and the MOS tube. In addition, R21 ensures the stability of the working signal of the transistor Q7 by cooperating with other parts of the circuit.

[0048] In summary, the combined structure of the dual MOS tube and the triode in the input control unit can realize stable control of the battery power output, and the enable signal switching function of the triode can realize efficient switching of the power management module and the bridge driver chip, thereby ensuring a smooth transition of the system between battery power supply and external power supply, and improving the continuity of power supply and the reliability of the system.

[0049] Preferably, the two parts of the input control unit, one part is connected to the power management module, and the other part is connected to the battery, in order to achieve intelligent switching and efficient management under multiple power input conditions. During the operation of the power bank, when an external power source (such as power supplied by the power management module) exists, the system preferentially uses the external power source to power the bridge driver chip, and can charge the battery at the same time; when the external power source is not available, the input control unit switches to battery power supply through the control module connected to the battery, thereby ensuring that the bridge driver chip can continue to work and provide a stable power supply for the device to be charged. This dual-input control design not only improves the flexibility of the system, but also optimizes power consumption management and extends the use time of the device. At the same time, it avoids the conflict problem caused by the simultaneous power supply of the external power source and the battery, and improves the reliability and use efficiency of the system.

[0050] Further, such as Figure 6 As shown, the power management module includes a power management chip U1, a TYPEC interface terminal and an inductor L1. The power input and output ports of the power management chip U1 are connected to the power input and output ports of the TYPEC interface terminal, the signal output end of the TYPEC interface terminal is connected to the charge and discharge identification end of the power management chip U1, the battery power output end of the power management chip U1 is connected to the first end of the inductor L1, and the second end of the inductor L1 is connected to the positive end of the battery.

[0051] In this embodiment, each component forms a complete power management logic through a clear port connection. The power input and output port of the power management chip U1 is connected to the power input and output port of the TYPEC interface terminal, which is used to receive a power supply signal from an external power source (such as a charger) or to supply power to an external device through a battery. The signal output end of the TYPEC interface terminal is connected to the charge and discharge identification end of the power management chip U1, which assumes the automatic identification function of the power input and output mode, and dynamically switches to the charging or discharging mode according to the presence or absence of the external power supply, thereby realizing intelligent power management. The battery power output end of the power management chip U1 is connected to the first end of the inductor L1, and the second end of the inductor L1 is connected to the positive end of the battery to form a power transmission path. Inductor L1 plays the role of energy storage and voltage regulation here, which can smooth current fluctuations and suppress high-frequency noise during the charging process, ensuring that the battery receives a stable charging current and voltage. The design logic of the entire module combines the bidirectional signal transmission of the TYPEC interface terminal with the intelligent identification function of the power management chip U1, realizing efficient switching between external power input, battery charging and battery discharging. At the same time, the inductor L1 optimizes the power quality during the charging process, improves the reliability and efficiency of the system, and provides stable power support for the battery and bridge driver chip.

[0052] In summary, the power management chip in the power management module and the TYPEC interface terminal are designed in coordination to achieve automatic identification and charge and discharge management of the external power supply and battery, and the current and voltage regulation of the battery output can be achieved through the introduction of inductance, thereby improving the system's adaptability to different power supply conditions and ensuring that the charging process is efficient and safe.

[0053] Further, such as Figure 7-Figure 9 As shown, the main control module includes a main control chip U3, a light indication unit and a temperature sensing unit. The data communication end of the main control chip U3 is connected to the data communication end of the power management module to automatically wake up the power management module in a dormant state. The main control chip U3 is provided with a plurality of indication signal output ports, each indication signal output port is respectively connected to the positive end of the light emitting diode corresponding to the light indication unit, the negative end of the light emitting diode is grounded, and the temperature signal input end of the main control chip U3 is connected to the temperature signal output end of the temperature sensing unit.

[0054] In this embodiment, the main control module realizes automatic control of power management, indication of operating status and real-time monitoring of temperature through the synergy of the main control chip U3, the light indication unit and the temperature sensing unit. The data communication terminal of the main control chip U3 is connected to the data communication terminal of the power management module. This connection relationship ensures that the main control chip can perform two-way data interaction with the power management module to realize automatic control of the sleep and wake-up states of the power management module. When the main control chip detects the working needs of the system, it can send a wake-up instruction to the power management module through data communication to switch it from the sleep state to the working state, thereby providing necessary power support for other modules. The multiple indication signal output ports set on the main control chip U3 are respectively connected to the positive end of the light emitting diode in the light indication unit for outputting the status indication signal, and the negative end of each light emitting diode is grounded. By triggering the corresponding light emitting diode to emit light through different indication signal output ports, the user can intuitively understand the current operating status or fault information of the system, which improves the user experience and operation convenience. In addition, the temperature signal input terminal of the main control chip U3 is connected to the temperature signal output terminal of the temperature sensing unit to ensure that the main control chip can receive the ambient temperature or device temperature information detected by the temperature sensing unit in real time. When abnormal temperature is detected, the main control chip can adjust the system operation status according to the preset logic, such as reducing the workload, stopping charging or triggering an alarm, thereby protecting the safety and stability of the equipment. The entire design uses the logical collaboration of data communication, signal output and temperature monitoring to enable the main control module to play a key role in system control, operation status indication and safety assurance, providing the system with an efficient, intelligent and safe operation mechanism.

[0055] In summary, through the coordinated work of the main control chip and the light indication unit in the main control module, real-time feedback on the current working status of the equipment can be achieved. At the same time, the operating temperature of the equipment can be monitored through the cooperation of the temperature sensing unit and the main control chip, so that the working status can be adjusted in time when the system is overheated or low in temperature, thereby improving the safety of equipment operation and user operability.

[0056] Further, such as Fig. 9 As shown, the temperature sensing unit includes a resistor R15, a thermistor NTC1 and a capacitor C20, a first end of the resistor R15 is connected to a power supply, a second end of the resistor R15 is connected to a first end of the thermistor NTC1, a second end of the thermistor NTC1 is grounded, and a capacitor C20 is connected between the second end of the resistor R15 and the ground.

[0057] In the present embodiment, resistor R15, thermistor NTC1 and capacitor C20 are connected through ports to form a complete temperature detection circuit. The first end of resistor R15 is connected to the power supply to provide a stable voltage signal for the entire temperature sensing unit, and its second end is connected to the first end of thermistor NTC1, while the node is connected to the ground in parallel with capacitor C20. The second end of thermistor NTC1 is directly grounded to complete the current loop of the temperature detection circuit. Resistor R15 and thermistor NTC1 are connected in series to form a voltage divider circuit, wherein the resistance of thermistor NTC1 changes with the change of ambient temperature, thereby affecting the voltage value of the voltage divider point. The voltage at this voltage divider point reflects the current ambient temperature or the surface temperature of the device as the output signal of the temperature sensing unit. Capacitor C20 is connected in parallel between the second end of resistor R15 and the ground, and its function is to filter out the high-frequency noise and smooth signal fluctuations in the temperature detection signal, and ensure that the temperature signal transmitted to the main control module is more stable and accurate. Through this connection and logical design, the temperature sensing unit can sense the dynamic changes in temperature in real time and accurately transmit the temperature signal to the main control module for analysis and processing, thereby providing basic data support for the device's temperature protection mechanism. At the same time, it avoids misjudgment due to signal interference and improves the reliability and safety of the system.

[0058] In summary, the combined design of resistors, thermistors and capacitors in the temperature sensing unit can accurately detect temperature changes of the equipment and transmit the temperature signals to the main control chip, thereby realizing real-time alarm or adjustment functions for abnormal temperature conditions, avoiding equipment damage or performance degradation caused by excessively high or low temperatures, and improving the stability and durability of the system.

[0059] 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.

[0060] 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 new Q-value wake-up circuit suitable for magnetic charging treasure, characterized in that: The novel Q-value wake-up circuit applicable to the magnetic power bank comprises a power management module, a main control module, a wireless charging module and a Q-value wake-up module, wherein the power management module is used to supply power to the wireless charging module, and the wireless power output end of the wireless charging module outputs power to power the device to be charged, the power signal input end of the Q-value wake-up module is connected to the wireless power output end of the wireless charging module, the wake-up signal output end of the Q-value wake-up module is connected to the wake-up signal input end of the main control module, and the wake-up signal output end of the main control module is connected to the wake-up signal input end of the power management module; When the device to be charged is placed in the charging area and the wireless charging module is powered off, the wireless charging module generates a corresponding power signal based on the electromagnetic coupling between the wireless charging module and the device to be charged. After the Q value wake-up module detects the power signal, it sends the corresponding wake-up signal to the power management module through the main control module to automatically wake up the power management module in a dormant state, and then power on the wireless charging module.

2. According to claim 1, a novel Q-value wake-up circuit suitable for a magnetic power bank is characterized in that: The Q value wake-up module includes a resistor R29, a resistor R30, a capacitor C11 and a transistor Q3, the first end of the resistor R29 is connected to the power supply, the second end of the resistor R29 is connected to the first conduction end of the transistor Q3, the second conduction end of the transistor Q3 is grounded, the first end of the resistor R30 is connected to the wireless power output end of the wireless charging module, the second end of the resistor R30 is connected to the controlled end of the transistor Q3, and the capacitor C11 is connected between the second end of the resistor R29 and the ground.

3. According to claim 1, a novel Q-value wake-up circuit suitable for a magnetic power bank is characterized in that: The wireless charging module includes an input control unit, a bridge driving chip and a resonance unit. The power input end of the input control unit is connected to the power input and output ends of the power management module, the power output end of the input control unit is connected to the power input end of the bridge driving chip, and the power output end of the bridge driving chip is connected to the power input end of the resonance unit. The resonance unit is used to convert the input power into high-frequency alternating current and transmit energy to the device to be charged through the wireless charging coil in the resonance unit.

4. A novel Q-value wake-up circuit suitable for a magnetic power bank according to claim 3, characterized in that: The resonant unit includes a resonant capacitor group, a resistor R46, a capacitor C43 and a wireless charging coil. The first PWM signal end of the bridge driving chip is connected to the LP1 end of the wireless charging coil, the second PWM signal end of the bridge driving chip is connected to the first conduction end of the resonant capacitor group, the second conduction end of the resonant capacitor group is connected to the LP2 end of the wireless charging coil, the common node between the first PWM signal end of the bridge driving chip and the LP1 end of the wireless charging coil is connected to the first end of the resistor R46, the second end of the resistor R46 is connected to the first end of the capacitor C43, and the common node between the second conduction end of the resonant capacitor group and the LP2 end of the wireless charging coil is connected to the second end of the capacitor C43 on the one hand, and to the power signal input end of the Q value wake-up module on the other hand.

5. According to claim 4, a novel Q-value wake-up circuit suitable for a magnetic power bank is characterized in that: The resonant capacitor group includes a capacitor C53, a capacitor C55, a capacitor C56 and a capacitor C58, and the capacitor C53, the capacitor C55, the capacitor C56 and the capacitor C58 are arranged in parallel.

6. According to claim 3, a novel Q-value wake-up circuit suitable for a magnetic power bank is characterized in that: The input control unit includes a MOS tube Q2, a transistor Q5, a resistor R16 and a resistor R31. The first conduction end of the MOS tube Q2 is connected to the power input and output end of the power management module, the second conduction end of the MOS tube Q2 is connected to the power input end of the bridge driver chip, the first end of the resistor R16 is connected to the power input and output end of the power management module, the second end of the resistor R16 is connected to the first end of the transistor Q5, the second end of the transistor Q5 is grounded, the controlled end of the transistor Q5 is connected to the first end of the resistor R31, and the second end of the resistor R31 is connected to the first enable signal output end of the main control module.

7. According to claim 3, a novel Q-value wake-up circuit suitable for a magnetic power bank is characterized in that: The input control unit includes a MOS transistor Q4, a MOS transistor Q6, a resistor R17, a resistor R21 and a triode Q7, wherein a first conducting end of the MOS transistor Q6 is connected to a positive terminal of a battery, a second conducting end of the MOS transistor Q6 is connected to a first conducting end of the MOS transistor Q4, a second conducting end of the MOS transistor Q4 is connected to a power input terminal of the bridge driving chip, a first conducting end of the triode Q7 is connected to a controlled end of the MOS transistor Q4, a first conducting end of the triode Q7 is connected to a controlled end of the MOS transistor Q6, a second conducting end of the triode Q7 is grounded, a controlled end of the triode Q7 is connected to a first end of the resistor R17, a second end of the resistor R17 is connected to a second enable signal output terminal of the main control module, a common node between the second conducting end of the MOS transistor Q6 and the first conducting end of the MOS transistor Q4 is connected to a first end of the resistor R21, and a second end of the resistor R21 is connected to a first conducting end of the triode Q7.

8. According to claim 1, a novel Q-value wake-up circuit suitable for a magnetic power bank is characterized in that: The power management module includes a power management chip U1, a TYPEC interface terminal and an inductor L1. The power input and output ports of the power management chip U1 are connected to the power input and output ports of the TYPEC interface terminal, the signal output end of the TYPEC interface terminal is connected to the charge and discharge identification end of the power management chip U1, the battery power output end of the power management chip U1 is connected to the first end of the inductor L1, and the second end of the inductor L1 is connected to the positive end of the battery.

9. A novel Q-value wake-up circuit suitable for a magnetic power bank according to claim 1, characterized in that: The main control module includes a main control chip U3, a light indication unit and a temperature sensing unit. The data communication end of the main control chip U3 is connected to the data communication end of the power management module to automatically wake up the power management module in a dormant state. The main control chip U3 is provided with a plurality of indication signal output ports, each of which is respectively connected to the positive end of the light emitting diode corresponding to the light indication unit, and the negative end of the light emitting diode is grounded. The temperature signal input end of the main control chip U3 is connected to the temperature signal output end of the temperature sensing unit.

10. A novel Q-value wake-up circuit suitable for a magnetic power bank according to claim 9, characterized in that: The temperature sensing unit includes a resistor R15, a thermistor NTC1 and a capacitor C20, wherein a first end of the resistor R15 is connected to a power supply, a second end of the resistor R15 is connected to a first end of the thermistor NTC1, a second end of the thermistor NTC1 is grounded, and the capacitor C20 is connected between the second end of the resistor R15 and the ground.

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