Vehicle-mounted wireless charging power supply system

Abstract

The utility model provides a vehicle-mounted wireless charging power supply system, a wireless charging chip in the system is provided with an ultra-low power consumption module, the wireless charging chip enters a low power consumption mode under the condition of power failure of an input voltage, and a super capacitor supplies power to the wireless charging chip and an off-chip voltage stabilization module. And the off-chip voltage stabilizing module supplies power to the motor driving module, the touch module and other functional modules, so that the use requirement of the vehicle-mounted wireless charging power failure condition is met, a processor does not need to be additionally arranged, and the system cost and the circuit complexity are reduced.

Description

Technical Field

[0001] This application relates to the field of wireless charging technology, and more particularly, to an in-vehicle wireless charging power supply system. Background Art

[0002] Wireless charging technology eliminates charging cables, avoids wear and tear of the interface caused by frequent plugging and unplugging, and has the convenience of charging as soon as the device is placed. Therefore, it has received much attention and has been rapidly promoted in recent years. The application scenarios of wireless charging are mainly in offices, on home desks, in public places, and inside cars. Currently, most new energy vehicles are pre-installed with wireless charging, and older models or new energy vehicles can also achieve in-vehicle wireless charging by installing a wireless charging base. However, an in-vehicle wireless charging base needs to solve a dilemma. After the user gets out of the car and turns off the vehicle's low-voltage power supply system, the input power of the wireless charging base drops, but at this time, the mobile phone is still clamped by the robotic arm of the in-vehicle wireless charging and cannot be removed.

[0003] In the existing in-vehicle wireless charging power supply system solutions, a low-power processor MCU is usually added on the basis of a wireless charging SoC, cooperating with a super capacitor, so that the mechanical clamping arm can maintain normal use for a period of time when the input power drops. Although the problem of in-vehicle input power loss is solved by using an additional low-power processor, most of the performance of this processor is wasted, and at the same time, the system cost and circuit complexity are increased. Summary of the Utility Model

[0004] The purpose of the embodiments of this application is to provide an in-vehicle wireless charging power supply system to solve the problem that the existing in-vehicle wireless charging power supply system solutions add a low-power processor, thus increasing the system cost and circuit complexity.

[0005] An in-vehicle wireless charging power supply system provided by the embodiments of this application includes: a Buck module, a wireless charging chip, a super capacitor, and an off-chip voltage regulation module;

[0006] The wireless charging chip is used to control the BuckBoost module to convert the input voltage and output it to the inverter bridge when the input voltage is normally powered, and control the inverter bridge to generate alternating current to the LC resonant cavity;

[0007] When the input voltage is normally powered, the Buck module inputs the voltage from DCIN, outputs the voltage to supply power to the wireless charging chip and the off-chip voltage regulation module, and charges the super capacitor;

[0008] When the input voltage drops, the super capacitor supplies power to the wireless charging chip and the off-chip voltage regulation module;

[0009] Among them, the wireless charging chip includes an ultra-low power consumption module and an input power-off detection module; when the input power-off detection module detects a power-off of the input voltage or the input voltage port triggers the ultra-low power consumption module, the wireless charging chip enters the low power consumption mode.

[0010] In the above technical solution, the wireless charging chip has an ultra-low power consumption module. When the input voltage is powered off, the wireless charging chip enters the low power consumption mode, and the super capacitor supplies power to the wireless charging chip and the off-chip voltage stabilizing module. The off-chip voltage stabilizing module supplies power to functional modules such as motor drive and touch, so as to meet the usage requirements in the case of power-off of in-vehicle wireless charging, without the need to additionally increase a processor, reducing the system cost and circuit complexity.

[0011] In some optional embodiments, it further includes a first functional module. The signal terminal of the first functional module is connected to the wireless charging chip, and the power supply terminal of the first functional module is connected to the off-chip voltage stabilizing module.

[0012] In the above technical solution, the off-chip voltage stabilizing module supplies power to the first functional module. There is a signal connection between the first functional module and the wireless charging chip. The first functional module receives the control signal of the wireless charging chip, or the first functional module sends a trigger signal to the wireless charging chip.

[0013] In some optional embodiments, the first functional module includes a motor drive chip and a touch chip;

[0014] The motor drive chip is used to control the rotation of the motor, and further control the movement of each joint of the robotic arm to realize the clamping or releasing of the robotic arm;

[0015] The touch chip is used to sense the user's touch action and send a wake-up signal to the wireless charging chip when the wireless charging chip is in the low power consumption mode.

[0016] In the above technical solution, the first functional module includes a motor drive chip and a touch chip. When the input voltage is powered off, the super capacitor supplies power to the off-chip voltage stabilizing module, and the off-chip voltage stabilizing module supplies power to the motor drive chip and the touch chip. Thus, in the case of turning off the vehicle's low-voltage power supply system after the user gets out of the car, the clamping and releasing of the mobile phone can still be realized by controlling the robotic arm. After the user gets out of the car, the wireless charging chip is in the low power consumption mode. At this time, if the touch chip senses the user's touch action, the touch chip sends a wake-up signal to the wireless charging chip to make the wireless charging chip exit the low power consumption mode.

[0017] In some optional embodiments, the wireless charging chip further includes a digital module;

[0018] When the wireless charging chip in the low power consumption mode receives the wake-up signal, it enters the working mode, enables the Buck module, and the output terminal of the Buck module supplies power to the digital module;

[0019] The digital module connects the touch chip and the motor drive chip;

[0020] After the digital module outputs a signal to control the motor drive chip and completes one release and clamping of the robotic arm, the wireless charging chip continues to enter the low-power mode.

[0021] In the above technical solution, the wireless charging chip in the low-power mode receives a wake-up signal, exits the low-power mode, and enters the working mode. The wireless charging chip enables the Buck module, so that the output end of the Buck module supplies power to the digital module of the wireless charging chip. The digital module connects the touch chip and the motor drive chip.

[0022] Among them, the implementation process of the release and clamping of the robotic arm can be: the user sends an instruction for taking out the mobile phone to the digital module through the touch chip. According to this instruction, the wireless charging chip uses the digital module to send a control instruction to the motor drive chip. For example, first control the motor to reverse to realize the release of the robotic arm, and then control the motor to rotate forward to realize the clamping of the robotic arm.

[0023] After completing one release and clamping of the robotic arm, the wireless charging chip can automatically enter the low-power mode.

[0024] In some optional embodiments, the wireless charging chip further includes an on-chip voltage regulation module; the on-chip voltage regulation module is used to supply power to the light sensor chip;

[0025] The wireless charging chip in the low-power mode receives a wake-up signal, enters the working mode, enables the Buck module, and the output end of the Buck module supplies power to the on-chip voltage regulation module.

[0026] In the above technical solution, when the input voltage drops and the wireless charging chip is awakened and enters the working mode, the on-chip voltage regulation module of the wireless charging chip supplies power to the light sensor chip. At this time, if the motor drive chip controls the robotic arm to release and the user takes away the mobile phone clamped by the robotic arm, the light sensor chip senses the light change and sends a trigger signal to the wireless charging chip. The wireless charging chip sends a control signal to the motor drive chip according to this trigger signal to control the robotic arm to retract (clamp). The solution of this embodiment can still make the robotic arm automatically retract after the user takes away the mobile phone when the input voltage drops, improving the user experience.

[0027] A control method for an in-vehicle wireless charging power supply system provided by an embodiment of the present application includes:

[0028] When the input voltage is normally powered, the Buck module inputs voltage from the DCIN input voltage, outputs voltage to supply power to the wireless charging chip and the off-chip voltage regulation module, and charges the super capacitor;

[0029] When the input power-off detection module detects that the input voltage has lost power, or when the input voltage port triggers the ultra-low power consumption module, the inverter bridge is turned off, the Buck module and the BuckBoost module are turned off, and the wireless charging chip is configured to enter the low-power mode; the super capacitor supplies power to the wireless charging chip and the off-chip voltage regulation module.

[0030] In the above technical solution, the super capacitor is charged when the input voltage is normally powered; when the input voltage loses power, the wireless charging chip enters the low-power mode, and the super capacitor supplies power to the wireless charging chip and the off-chip voltage regulation module. The off-chip voltage regulation module supplies power to functional modules such as motor drive and touch, thereby meeting the usage requirements in the case of power loss of in-vehicle wireless charging, without the need to add an additional processor, reducing the system cost and circuit complexity.

[0031] In some optional embodiments, it further includes a control method for touch wake-up. The control method for touch wake-up includes:

[0032] When the wireless charging signal is in the low-power mode, the touch chip senses the user's touch action and sends a wake-up signal to the wireless charging chip;

[0033] The wireless charging chip in the low-power mode receives the wake-up signal and enters the working mode; among them, the wireless charging chip in the working mode enables the Buck module, and the output end of the Buck module supplies power to the wireless charging chip;

[0034] Judge whether a fast charging protocol is detected or the input voltage is greater than the set value;

[0035] If a fast charging protocol is not detected or the input voltage is greater than the set value, after the wireless charging chip outputs a signal to control the motor drive chip and completes one release and clamping of the robotic arm, the wireless charging chip continues to enter the low-power mode.

[0036] In some optional embodiments, after judging whether a fast charging protocol is detected or the input voltage is greater than the set value, it further includes:

[0037] If a fast charging protocol is detected or the input voltage is greater than the set value, then execute the control method for power-on of the input voltage.

[0038] In some optional embodiments, the control method for power-on of the input voltage includes:

[0039] Judge whether the conditions are met: the voltage of the CC port is greater than the threshold, a wake-up signal is received, and short-circuit detection is performed through DP / DM;

[0040] If the conditions are met, enter the working mode;

[0041] Judge whether a fast charging protocol is detected or the input voltage is greater than the set value;

[0042] If the fast charging protocol is detected or the input voltage is greater than the set value, enter the charging process; if the fast charging protocol is not detected or the input voltage is less than or equal to the set value, execute the control method for touch wake-up.

[0043] A computer program product provided by an embodiment of the present application includes a computer program / instruction, and when the computer program / instruction is executed by a processor, the steps of any of the above-mentioned methods are implemented. Description of the Drawings

[0044] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required to be used in the embodiments of the present application will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0045] Figure 1 It is a schematic diagram of the basic architecture of the in-vehicle wireless charging system provided by an embodiment of the present application;

[0046] Figure 2 It is a circuit structure diagram of an in-vehicle wireless charging power supply system provided by an embodiment of the present application;

[0047] Figure 3 It is an architecture diagram of a wireless charging chip provided by an embodiment of the present application;

[0048] Figure 4 It is a flowchart of input voltage power-off control provided by an embodiment of the present application;

[0049] Figure 5 It is a flowchart of touch wake-up control provided by an embodiment of the present application;

[0050] Figure 6 It is a flowchart of input voltage power-on control provided by an embodiment of the present application. Detailed Embodiments

[0051] The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

[0052] Please refer to Figure 1 , Figure 1 It is a schematic diagram of the basic architecture of the in-vehicle wireless charging system provided by an embodiment of the present application. The in-vehicle wireless charging system includes a BuckBoost module, a wireless charging chip, an inverter bridge, and an LC resonator. When the input voltage is normally powered, the BuckBoost module converts the input voltage and outputs it to the inverter bridge, and the wireless charging chip controls the inverter bridge to generate alternating current to the LC resonator.

[0053] DCIN is the power input port, which can be connected to the vehicle-mounted low-voltage 12V / 24V power supply or a vehicle-mounted adapter. The wireless charging chip controls the BuckBoost to convert the input voltage and supply it to the inverter bridge. The wireless charging chip emits a PWM wave to control the inverter bridge to generate alternating current and supply it to the LC resonant cavity, and then send an electromagnetic field to the receiving end.

[0054] Please refer to Figure 2 , Figure 2 FIG. is a circuit structure diagram of a vehicle-mounted wireless charging power supply system provided by an embodiment of the present application. The vehicle-mounted wireless charging power supply system includes: a wireless charging chip, a Buck module, a super capacitor, and an off-chip voltage regulation module. In the case of a power failure of the input voltage, the super capacitor supplies power to the wireless charging chip and the off-chip voltage regulation module. Among them, the wireless charging chip includes an ultra-low power consumption module and an input power failure detection module; when the input power failure detection module detects a power failure of the input voltage or the input voltage port triggers the ultra-low power consumption module, the wireless charging chip enters the low power consumption mode.

[0055] In the embodiment of the present application, the wireless charging chip has an ultra-low power consumption module. In the case of a power failure of the input voltage, the wireless charging chip enters the low power consumption mode. The super capacitor supplies power to the wireless charging chip and the off-chip voltage regulation module, and the off-chip voltage regulation module supplies power to functional modules such as motor drive and touch, so as to meet the usage requirements in the case of a power failure of vehicle-mounted wireless charging, without the need to additionally increase a processor, reducing the system cost and circuit complexity.

[0056] It should be clear that although the Buck module in this embodiment is a module external to the wireless charging chip, the Buck module can also be replaced by an integrated Buck or HVLDO inside the wireless charging chip to further reduce the system power consumption.

[0057] Please refer to Figure 3 , Figure 3 FIG. is an architecture diagram of the wireless charging chip provided by an embodiment of the present application. The wireless charging chip has an ultra-low power consumption module (Ultra-Low Power Microcontroller Unit, ULPMU). The ultra-low power consumption module is a microcontroller unit designed specifically for low-power applications. Essentially, it is the smallest analog circuit inside the chip to maintain the chip wake-up. The ULPMU realizes extremely low power consumption by adopting special design and optimization techniques, such as reducing current consumption, optimizing the processor architecture and algorithms, and reducing the operating frequency. It can operate for a long time without the need to frequently replace the battery or charge, and is suitable for applications that require long-term operation, limited external power supply, or no power supply environment.

[0058] The ultra-low power consumption module of this embodiment includes wake-up on the rising edge, falling edge, high level, and low level of the IO. To reduce the power consumption of the wireless charging chip, when entering the ultra-low power consumption sleep stage, the chip uses a low-speed clock and turns off other analog and digital circuits required for the normal operation of the chip. The analog circuits for the normal operation of the chip include ADC, high-speed clock, etc.

[0059] In some alternative embodiments, it further includes a first functional module. The signal terminal of the first functional module is connected to the wireless charging chip, and the power supply terminal of the first functional module is connected to an off-chip voltage regulation module. In the embodiments of the present application, the off-chip voltage regulation module supplies power to the first functional module. The first functional module is signal-connected to the wireless charging chip. The first functional module receives the control signal of the wireless charging chip, or the first functional module sends a trigger signal to the wireless charging chip.

[0060] In some alternative embodiments, the first functional module includes a motor drive chip and a touch chip; the motor drive chip is used to control the rotation of the motor, and thus control the movement of each joint of the robotic arm to realize the clamping or releasing of the robotic arm; the touch chip is used to sense the user's touch action and send a wake-up signal to the wireless charging chip when the wireless charging chip is in the low power consumption mode.

[0061] In the embodiments of the present application, the first functional module includes a motor drive chip and a touch chip. In the case of power loss of the input voltage, the super capacitor supplies power to the off-chip voltage regulation module, and the off-chip voltage regulation module supplies power to the motor drive chip and the touch chip. Thus, in the situation where the low-voltage power supply system of the car is turned off after the user gets out of the car, the clamping and releasing of the mobile phone can still be realized by controlling the robotic arm. After the user gets out of the car, the wireless charging chip is in the low power consumption mode. At this time, if the touch chip senses the user's touch action, the touch chip sends a wake-up signal to the wireless charging chip to make the wireless charging chip exit the low power consumption mode.

[0062] In some alternative embodiments, the wireless charging chip further includes a digital module; when the wireless charging chip in the low power consumption mode receives the wake-up signal, it enters the working mode and enables the Buck module. The output terminal of the Buck module supplies power to the digital module; the digital module is connected to the touch chip and the motor drive chip; after the digital module outputs a signal to control the motor drive chip and completes one release and clamping of the robotic arm, the wireless charging chip continues to enter the low power consumption mode.

[0063] In the embodiments of the present application, when the wireless charging chip in the low power consumption mode receives the wake-up signal, it exits the low power consumption mode and enters the working mode. The wireless charging chip enables the Buck module, so that the output terminal of the Buck module supplies power to the digital module of the wireless charging chip. The digital module is connected to the touch chip and the motor drive chip.

[0064] The release and clamping process of the robot arm can be:

[0065] The user uses the touch chip to send a command to the digital module to remove the phone. Based on this command, the wireless charging chip uses the digital module to send control commands to the motor driver chip. For example, the motor may be controlled to rotate in reverse to release the robotic arm, and then in forward direction to clamp the arm. After completing each release and clamping operation, the wireless charging chip automatically enters low-power mode.

[0066] In some optional embodiments, the wireless charging chip also includes an on-chip voltage stabilization module; the on-chip voltage stabilization module is used to power the light sensing chip; the wireless charging chip in low-power mode receives a wake-up signal, enters the working mode, enables the Buck module, and the output end of the Buck module powers the on-chip voltage stabilization module.

[0067] In an embodiment of the present application, if the input voltage fails and the wireless charging chip is awakened and enters operating mode, the on-chip voltage regulator module of the wireless charging chip supplies power to the light-sensing chip. At this time, if the motor driver chip controls the release of the robotic arm and the user removes the phone held by the robotic arm, the light-sensing chip senses the change in light and sends a trigger signal to the wireless charging chip. The wireless charging chip then sends a control signal to the motor driver chip based on the trigger signal to control the retraction (clamping) of the robotic arm. In this embodiment, even if the input voltage fails, the robotic arm can still automatically retract after the user removes the phone, improving the user experience.

[0068] An embodiment of the present application provides a control method for an in-vehicle wireless charging and power supply system, including:

[0069] Step S1: When the input voltage is normal, the Buck module inputs voltage from DCIN and outputs voltage to power the wireless charging chip and the external voltage regulator module, and charges the supercapacitor;

[0070] Step S2: When the input power-off detection module detects that the input voltage is powered off, or the input voltage port triggers the ultra-low power module, the inverter bridge is turned off, the Buck module and the BuckBoost module are turned off, and the wireless charging chip is configured to enter low power mode; the supercapacitor supplies power to the wireless charging chip and the off-chip voltage regulator module.

[0071] In the embodiment of the present application, when the input voltage is normally supplied, the supercapacitor is charged; when the input voltage is powered off, the wireless charging chip enters a low-power mode, and the supercapacitor supplies power to the wireless charging chip and the off-chip voltage regulator module. The off-chip voltage regulator module supplies power to functional modules such as motor drive and touch, thereby meeting the usage requirements of vehicle-mounted wireless charging in the event of power failure, without the need for an additional processor, reducing system cost and circuit complexity.

[0072] Specifically, this control method is applied to Figure 2 the in-vehicle wireless charging power supply system shown in the figure. DCIN is directly supplied to the VIN terminal of the wireless charging chip, activating some modules of the wireless charging chip, pulling up the level of the IO0 terminal of the wireless charging chip, and enabling the Buck module. Moreover, DCIN is directly supplied to the input terminal of the Buck module. The Buck module generates a power supply of about 5V and supplies it to the AVDD terminal of the wireless charging chip through the Schottky diode D2. Moreover, the power supply of about 5V generated by the Buck module is also supplied to the motor drive chip and the off-chip voltage regulator module LDO 3V3 through the diode D3 at the same time. The power supply of about 5V generated by the Buck module is also used to charge the super capacitor through the diode D3 and the charging resistor R1. The off-chip voltage regulator module generates a 3.3V power supply to supply power to the touch chip. Therefore, when the input voltage is normally supplied, the power supply of the entire system comes from the input voltage DCIN.

[0073] Please refer to Figure 4 , Figure 4 which is the input voltage power-down control flow chart provided by the embodiment of the present application. When the input voltage drops, the VIN terminal of the wireless charging chip triggers the low-power mode LVP, or the input power-down detection module recognizes the input voltage drop (for example, recognizes the input voltage drop through the DAC comparator). The wireless charging chip turns off the PWM inverter bridge, closes the Buck module by software control, and configures the system to enter the ultra-low-power sleep state.

[0074] Another example is Figure 2 as shown in the figure. When DCIN drops, the wireless charging chip detects the input voltage drop, pulls down IO0, turns off the output of the Buck module, and enters the ultra-low-power sleep state. At this time, the super capacitor continues to supply power to the VIN terminal of the wireless charging chip through the Schottky diode D1, and at the same time continues to supply power to the motor drive chip and the off-chip voltage regulator module LDO3V3 through the PMOS transistor Q1. Due to the reverse cut-off function of the Schottky diode D3, there is no power at the AVDD terminal of the wireless charging chip. The off-chip voltage regulator module LDO3V3 generates a 3.3V power supply to supply power to the touch chip to maintain the touch sensing function.

[0075] In some optional implementation manners, it further includes a control method for touch wake-up. The control method for touch wake-up includes:

[0076] Step S3: When the wireless charging signal is in the low-power mode, the touch chip senses the user's touch action and sends a wake-up signal to the wireless charging chip;

[0077] Step S4: The wireless charging chip in the low-power mode receives the wake-up signal and enters the working mode; wherein, the wireless charging chip in the working mode enables the Buck module, and the output terminal of the Buck module supplies power to the wireless charging chip.

[0078] Step S5: Determine whether a fast charging protocol is detected or the input voltage is greater than a set value;

[0079] Step S51: If a fast charging protocol is not detected or the input voltage is greater than the set value, after the wireless charging chip outputs a signal to control the motor drive chip and completes one release and clamping of the robotic arm, the wireless charging chip continues to enter the low power consumption mode.

[0080] In some alternative embodiments, after determining whether a fast charging protocol is detected or the input voltage is greater than the set value, it further includes:

[0081] Step S52: If a fast charging protocol is detected or the input voltage is greater than the set value, execute the control method for powering on the input voltage.

[0082] Specifically, when the touch wake-up control method is applied to Figure 2 the in-vehicle wireless charging power supply system shown, please refer to Figure 5 , Figure 5 which is the touch wake-up control flowchart provided by the embodiments of the present application. In combination with Figure 2 the in-vehicle wireless charging power supply system shown, when DCIN loses power, if a user touch action is sensed, the touch chip will pull up the IO3 port of the wireless charging chip to generate an input wake-up function for waking up the ultra-low power module ULPMU, and pull up the IO0 port to enable the Buck module. Then, the AVDD terminal of the wireless charging chip is powered, the digital module of the wireless charging chip is started, and then the IO1 / IO2 ports of the wireless charging chip are used to drive the motor drive chip to open the clamping arm of the wireless charging base. After one opening and closing of the base clamping arm is completed, the system controls the wireless charging chip to continue to enter the ultra-low power sleep until the next time the touch chip senses a user touch or the super capacitor runs out of power and the system stops working.

[0083] In some alternative embodiments, please refer to Figure 6 , Figure 6 which is the control flowchart for powering on the input voltage provided by the embodiments of the present application. The control method for powering on the input voltage includes:

[0084] Step S6: Determine whether the conditions are met: the voltage at the CC port is greater than the threshold, a wake-up signal is received, and short-circuit detection is performed through DP / DM;

[0085] Step S7: If the conditions are met, enter the working mode;

[0086] Step S8: Determine whether a fast charging protocol is detected or the input voltage is greater than the set value;

[0087] Step S91: If the fast charging protocol is detected or the input voltage is greater than the set value, the charging process is entered; Step S92: If the fast charging protocol is not detected or the input voltage is less than or equal to the set value, the touch wake-up control method is executed.

[0088] A computer program product provided in an embodiment of the present application includes a computer program / instruction, which implements the steps of any of the above methods when executed by a processor.

[0089] In the embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. The device embodiments described above are merely schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some communication interfaces, and the indirect coupling or communication connection of the devices or units can be electrical, mechanical or other forms.

[0090] In addition, the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0091] Furthermore, the functional modules in the various embodiments of the present application may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part.

[0092] In this document, relational terms such as first and second, etc. are used merely to distinguish one entity or operation from another entity or operation, but do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0093] The above description is only an embodiment of the present application and is not intended to limit the scope of protection of the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the scope of protection of the present application.

Claims

1. A vehicle-mounted wireless charging and power supply system, characterized in that: Including: Buck module, wireless charging chip, super capacitor and off-chip voltage regulation module; The wireless charging chip is used to control the BuckBoost module to convert the input voltage and output it to the inverter bridge when the input voltage is normally powered, and control the inverter bridge to generate alternating current to the LC resonant cavity; When the input voltage is normally powered, the Buck module inputs the DCIN input voltage, outputs voltage to power the wireless charging chip and the off-chip voltage regulation module, and charges the super capacitor; When the input voltage drops, the super capacitor supplies power to the wireless charging chip and the off-chip voltage regulation module; Among them, the wireless charging chip includes an ultra-low power consumption module and an input power failure detection module; when the input power failure detection module detects that the input voltage drops, or the input voltage port triggers the ultra-low power consumption module, the wireless charging chip enters the low power consumption mode.

2. The system according to claim 1, wherein It further includes a first functional module, the signal terminal of the first functional module is connected to the wireless charging chip, and the power supply terminal of the first functional module is connected to the off-chip voltage regulation module.

3. The system according to claim 2, wherein The first functional module includes a motor drive chip and a touch chip; The motor drive chip is used to control the rotation of the motor, and then control the movement of each joint of the robotic arm to realize the clamping or releasing of the robotic arm; The touch chip is used to sense the user's touch action and send a wake-up signal to the wireless charging chip when the wireless charging chip is in the low power consumption mode.

4. The system according to claim 3, wherein The wireless charging chip further includes a digital module; When the wireless charging chip in the low power consumption mode receives the wake-up signal, it enters the working mode, enables the Buck module, and the output terminal of the Buck module powers the digital module; The digital module is connected to the touch chip and the motor drive chip; After the digital module outputs a signal to control the motor drive chip and completes one release and clamping of the robotic arm, the wireless charging chip continues to enter the low power consumption mode.

5. The system according to claim 1, wherein The wireless charging chip further includes an on-chip voltage regulation module; the on-chip voltage regulation module is used to power the light sensor chip; When the wireless charging chip in the low power consumption mode receives the wake-up signal, it enters the working mode, enables the Buck module, and the output terminal of the Buck module powers the on-chip voltage regulation module.

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