A control circuit for automobile lights

Abstract

The invention discloses a control circuit for automobile lamps, comprising a power supply module, a low-voltage to high-voltage circuit and a central control module, wherein the power supply module is connected with the low-voltage to high-voltage circuit and the central control module; the low-voltage to high-voltage circuit is connected with a high-voltage pulse output circuit, and the high-voltage pulse output circuit is respectively connected with a starting circuit and a high-voltage ignition circuit; the starting circuit is respectively connected with the central control module and the power supply module; the control circuit and the control method of the invention have strong adaptability, which can meet the requirements of lamps of different specifications on the one hand, and can meet the voltage requirements when the lamps are started on the other hand, and have extremely strong applicability.

Description

Technical Field

[0001] The invention relates to the technical field of automobile light control, and in particular to a control circuit for automobile lights. Background Art

[0002] At present, in addition to LED lamps that have not been really promoted and used, the main types of headlights on the market are halogen lamps and xenon lamps. Halogen lamps were produced in the 1960s. Most domestic cars and some old imported cars use halogen headlights. Compared with halogen headlights, xenon headlights are three times brighter and emit light like the sun. The projection range is far and wide, and the energy consumed by them is 45% less than that of ordinary halogen lamps. The life span is 5 times longer than that of halogen lamps. Therefore, there is an industry on the market that converts car halogen lamps into headlights. However, due to the different specifications of car xenon lamps, the required voltage and power are different. Therefore, the circuit and startup control method of traditional cars are difficult to meet the use requirements of the modified headlights and are difficult to adapt to different headlights. Summary of the invention

[0003] The purpose of the present invention is to provide a control circuit for automobile lights. The present invention can provide a suitable voltage for the start-up control of the automobile lights, can adapt to the start-up of the automobile lights, and has the advantage of good practicality.

[0004] The technical solution of the present invention: a control method for automobile lights, comprising a power supply module, a low-voltage to high-voltage circuit and a central control module, wherein the power supply module is connected to the low-voltage to high-voltage circuit and the central control module; the low-voltage to high-voltage circuit is connected to a high-voltage pulse output circuit, and the high-voltage pulse output circuit is respectively connected to a starting circuit and a high-voltage ignition circuit; the starting circuit is respectively connected to the central control module and the power supply module; the power supply module is used to provide a low voltage for the low-voltage to high-voltage circuit and to provide power for the starting circuit and the central control module; the central control module outputs a starting voltage and a pulse waveform according to external instructions; the low-voltage to high-voltage circuit converts the low voltage of the power supply module into the high voltage required by the high-voltage pulse output circuit according to the starting voltage of the central control module; the starting circuit generates a driving signal according to the pulse waveform of the central control module, the high-voltage pulse output circuit outputs a high-voltage pulse according to the driving signal, and the high-voltage ignition circuit ignites according to the high-voltage pulse.

[0005] In the above-mentioned control method for automobile lights, the low-voltage to high-voltage circuit includes a voltage-stabilizing diode D1, an electrolytic capacitor C1, a capacitor C2, a capacitor C3 and a voltage converter U1; the positive input end of the voltage converter U1 is connected in sequence to one end of the capacitor C2, the positive electrode of the electrolytic capacitor C1, the anode of the voltage-stabilizing diode D1 and the positive electrode of the power module; the negative input end of the voltage converter U1 is connected in sequence to the other end of the capacitor C2, the negative electrode of the electrolytic capacitor C1, the cathode of the voltage-stabilizing diode D1 and the negative electrode of the power module; the output end of the voltage converter is respectively connected to the two ends of the capacitor C3 and is connected to the high-voltage pulse output circuit; the signal input end in of the voltage converter is connected to the central control module.

[0006] The aforementioned control method for automobile lights, the starting circuit includes a control chip U2, an operational amplifier U3, an operational amplifier U4, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a capacitor C4 and a capacitor C5; the power input terminal of the control chip U2 is connected to the 5V voltage of the power module and is connected to the capacitor C4, and the other end of the capacitor C4 is grounded to the GND terminal of the control chip U2; the signal input terminals INA and INB of the control chip U2 are connected to the central control module; the DT terminal of the control chip U2 is respectively connected to the resistors R1 and one end of the capacitor C5, and the other ends of the resistor R1 and the capacitor C5 are grounded; the OUTA output end of the control chip U2 is connected to the positive electrode of the operational amplifier U3 through the resistor R3, the negative electrode of the operational amplifier U3 is connected to the power module through the resistor R2, and the output end of the operational amplifier U3 outputs a GA drive signal; the OUTB output end of the control chip U2 is connected to the positive electrode of the operational amplifier U4 through the resistor R4, the negative electrode of the operational amplifier U4 is connected to the power module through the resistor R5, and the output end of the operational amplifier U4 outputs a GB drive signal.

[0007] In the above-mentioned control method for automobile lights, the DT pin of the control chip U2 is a pin for setting the dead time, and the calculation formula is:

[0008] t d =10×R1,

[0009] Among them, t d is to set the dead time, the unit is ns, R1 is the resistance value of resistor R1, the unit is kΩ. When the DT pin is pulled up to 5V, the GA drive signal and the GB drive signal are output synchronously, and there is no dead time.

[0010] In the above-mentioned control method for automobile lights, the high-voltage pulse output circuit is composed of a plurality of switch modules connected in series in sequence; the switch module includes an IGBT tube Q1, an IGBT tube Q2, a resistor R6, a resistor R7, a voltage regulator diode ZD1, a voltage regulator diode ZD2, a voltage regulator diode ZD3, and a voltage regulator diode ZD4; the collector of the IGBT tube Q1, one end of the resistor R6, and the anode of the voltage regulator diode ZD1 are connected to the HV output of the low-voltage to high-voltage circuit and marked as HV+; the emitter of the IGBT tube Q1 is connected to the collector of the IGBT tube Q2, the anode of the resistor R6, and the collector of the IGBT tube Q2. The other end, one end of the resistor R7, the cathode of the Zener diode ZD2 and the anode of the Zener diode ZD3 are connected; the emitter of the IGBT tube Q2, the other end of the resistor R7, and the cathode of the Zener diode ZD4 are connected together with the HGND output by the low-voltage to high-voltage circuit, marked as HV_GND; the cathode of the Zener diode ZD1 is connected to the anode of the Zener diode ZD2; the cathode of the Zener diode ZD3 is connected to the anode of the Zener diode ZD4; the base of the IGBT tube Q1 receives the GA drive signal; the base of the IGBT tube Q2 receives the GB drive signal.

[0011] The above-mentioned control method for automobile lights, the high-voltage ignition circuit includes a resistor R8, a resistor R9, a diode D1, a diode D2, a capacitor C6, a capacitor C7 and a transformer T2; one end of the primary winding of the transformer T2, one end of the secondary winding, one end of the capacitor C7, one end of the resistor R9, and the anode of the diode D1 are connected to the output HV+ of the high-voltage pulse output circuit; the cathode of the diode D1 is connected to the anode of the diode D2, and the cathode of the diode D2, the other end of the resistor R9, the other end of the capacitor C7 and the other end of the primary winding of the transformer T2; the other end of the secondary winding of the transformer T2 is connected to the headlight, and the headlight and one end of the resistor R8 are connected to the output HV_GND of the high-voltage pulse output circuit; the other end of the resistor R8 is connected to one end of the capacitor C6, and the other end of the capacitor C6 is connected between the cathode of the diode D1 and the anode of the diode D2.

[0012] The aforementioned control method for automobile lights inputs an external instruction to the central control module according to the model of the lamp, and the external instruction includes the starting voltage and pulse waveform of the lamp; the central control module sends a starting signal to the power module, outputs the starting voltage to the low-voltage to high-voltage module, and outputs a pulse waveform to the starting circuit according to the external instruction;

[0013] The power supply module provides a low voltage to the low-voltage to high-voltage circuit and provides power to the starting circuit according to the starting signal; the low-voltage to high-voltage circuit converts the low voltage of the power supply module into a suitable high voltage required by the high-voltage pulse output circuit according to the starting voltage of the central control module; the starting circuit generates a driving signal according to the pulse waveform of the central control module, the high-voltage pulse output circuit outputs a high-voltage pulse according to the driving signal, and the high-voltage ignition circuit ignites according to the high-voltage pulse.

[0014] Compared with the prior art, the present invention can input external instructions including the starting voltage and pulse waveform of the car light to the central control module according to the specifications and models of the car light, and then the central control module sends a starting signal to the power module according to the external instruction, outputs the starting voltage to the low-voltage to high-voltage module, and outputs the pulse waveform to the starting circuit; the low-voltage to high-voltage circuit of the present invention converts the low voltage of the power module into the appropriate high voltage required by the high-voltage pulse output circuit according to the starting voltage of the central control module, and the starting circuit generates a driving signal according to the pulse waveform of the central control module, and then the high-voltage pulse output circuit outputs a high-voltage pulse according to the driving signal, and finally the high-voltage ignition circuit ignites according to the high-voltage pulse, so that the circuit of the present invention can adjust the corresponding starting voltage and high-voltage pulse according to the requirements of the car light, and can adapt to the installation of the car light. The present invention can realize the expansion of the voltage output range by connecting multiple starting circuits in series, and can realize the output of different voltages. At the same time, the switch of the IGBT tube in the starting circuit works, and then outputs the corresponding pulse waveform to meet the different voltage and pulse requirements of the car light starting. It can be seen that the control circuit and control method of the present invention have strong adaptability. On the one hand, they can meet the needs of vehicle lights of different specifications, and on the other hand, they can meet the voltage requirements when the vehicle lights are started, and can perform dual voltage regulation through a low-voltage to high-voltage circuit and a high-voltage ignition circuit. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the present invention;

[0016] Figure 2 It is a circuit diagram of a low voltage to high voltage circuit;

[0017] Figure 3 It is a schematic diagram of the structure of the starting circuit;

[0018] Figure 4 It is a schematic diagram of a high voltage pulse output circuit;

[0019] Figure 5 It is a circuit diagram of a high voltage ignition circuit. DETAILED DESCRIPTION

[0020] The present invention is further described below in conjunction with the accompanying drawings and embodiments, but they are not intended to limit the present invention.

[0021] Embodiment: A control method for automobile lights, including a power module, a low-voltage to high-voltage circuit and a central control module; the power module is a power output circuit mainly based on a battery in the car, which can provide corresponding voltage support for corresponding automobile electronic components, and the corresponding power control chip can control the output of voltage; the central control module can be the central control application end of the car, or it can be an external computer source, as long as it can realize signal input. The power module is connected to the low-voltage to high-voltage circuit and the central control module; the low-voltage to high-voltage circuit is connected to a high-voltage pulse output circuit, and the high-voltage pulse output circuit is respectively connected to a starting circuit and a high-voltage ignition circuit; the starting circuit is respectively connected to the central control module and the power module; it should be noted that the circuit and the low-voltage to high-voltage circuit in the power module of the present invention can be the car itself, or can be integrated and installed in the lamp holder of the car light. The high-voltage pulse output circuit, the starting circuit and the high-voltage ignition circuit are integrated in the lamp holder of the car light, and are connected to the corresponding battery and CAN line of the car in the form of a lamp holder.

[0022] The power supply module of the present invention is used to provide low voltage for the low-voltage to high-voltage circuit and to provide power for the starting circuit and the central control module; the central control module outputs a starting voltage and a pulse waveform according to external instructions; the low-voltage to high-voltage circuit converts the low voltage of the power supply module into the high voltage required by the high-voltage pulse output circuit according to the starting voltage of the central control module; the starting circuit generates a driving signal according to the pulse waveform of the central control module, the high-voltage pulse output circuit outputs a high-voltage pulse according to the driving signal, and the high-voltage ignition circuit ignites according to the high-voltage pulse.

[0023] In this embodiment, the low voltage to high voltage circuit includes a voltage stabilizing diode D1, an electrolytic capacitor C1, a capacitor C2, a capacitor C3 and a voltage converter U1. The voltage converter can set the voltage conversion parameters according to actual needs; the positive input end of the voltage converter U1 is connected to one end of the capacitor C2, the positive electrode of the electrolytic capacitor C1, the anode of the voltage stabilizing diode D1 and the positive electrode of the power module in sequence; the negative input end of the voltage converter U1 is connected to the other end of the capacitor C2, the negative electrode of the electrolytic capacitor C1, the cathode of the voltage stabilizing diode D1 and the negative electrode of the power module in sequence; the output end of the voltage converter is respectively connected to the two ends of the capacitor C3 and connected to the high voltage pulse output circuit; the signal input end in of the voltage converter is connected to the central control module. The low voltage to high voltage conversion in this embodiment can output a stable voltage of 0 to 1 kV, laying the foundation for the main switch circuit to output high voltage and high dv / dt pulses.

[0024] In this embodiment, the startup circuit includes a control chip U2, an operational amplifier U3, an operational amplifier U4, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a capacitor C4 and a capacitor C5; the power input terminal of the control chip U2 is connected to the 5V voltage of the power module and is connected to the capacitor C4, and the other end of the capacitor C4 is grounded to the GND terminal of the control chip U2; the signal input terminals INA and INB of the control chip U2 are connected to the central control module; the DT terminal of the control chip U2 is respectively connected to one end of the resistor R1 and the capacitor C5, and the other ends of the resistor R1 and the capacitor C5 are grounded; the OUTA output terminal of the control chip U2 is connected to the positive electrode of the operational amplifier U3 through the resistor R3, the negative electrode of the operational amplifier U3 is connected to the power module through the resistor R2, and the output terminal of the operational amplifier U3 outputs the GA drive signal; the OUTB output terminal of the control chip U2 is connected to the positive electrode of the operational amplifier U4 through the resistor R4, the negative electrode of the operational amplifier U4 is connected to the power module through the resistor R5, and the output terminal of the operational amplifier U4 outputs the GB drive signal. The main function of the startup circuit of this embodiment is to receive the high and low level signals provided by the central control module and convert them into driving signals sufficient to drive the IGBT switch action; the DT pin of the control chip U2 is the dead time setting pin, and the calculation formula is:

[0025] t d =10×R1,

[0026] Among them, t d is to set the dead time, the unit is ns, R1 is the resistance value of resistor R1, the unit is kΩ. When the DT pin is pulled up to 5V, the GA drive signal and the GB drive signal are output synchronously, and there is no dead time.

[0027] In this embodiment, the high-voltage pulse output circuit is composed of a plurality of switch modules connected in series in sequence; the switch module includes an IGBT tube Q1, an IGBT tube Q2, a resistor R6, a resistor R7, a voltage regulator diode ZD1, a voltage regulator diode ZD2, a voltage regulator diode ZD3, and a voltage regulator diode ZD4; the collector of the IGBT tube Q1, one end of the resistor R6, and the anode of the voltage regulator diode ZD1 are connected to the HV output of the low-voltage to high-voltage circuit and are marked as HV+; the emitter of the IGBT tube Q1 is connected to the collector of the IGBT tube Q2, the other end of the resistor R6, and the anode of the voltage regulator diode ZD1. One end of the resistor R7, the cathode of the voltage zener diode ZD2 and the anode of the voltage zener diode ZD3 are connected; the emitter of the IGBT tube Q2, the other end of the resistor R7 and the cathode of the voltage zener diode ZD4 are connected together with the HGND output by the low voltage to high voltage circuit, marked as HV_GND; the cathode of the voltage zener diode ZD1 is connected to the anode of the voltage zener diode ZD2; the cathode of the voltage zener diode ZD3 is connected to the anode of the voltage zener diode ZD4; the base of the IGBT tube Q1 receives the GA drive signal; the base of the IGBT tube Q2 receives the GB drive signal. When the high-voltage pulse output circuit of this embodiment receives the GA drive signal and the GA drive signal specified by the input of the start-up circuit, the two switching devices (IGBT tube Q1 and IGBT tube Q2) are switched at the same time; the high-voltage ignition circuit is connected to HV+ and HV_GND respectively, so that the high-voltage pulse waveform output by the present invention can be withstood for the start-up control of the car lights. The present invention can expand the voltage output range by connecting the switch modules of the starting circuit in series, and can achieve the output of different voltages. At the same time, through the switch operation of the IGBT tube in the starting circuit, the corresponding pulse waveform is output to meet the different voltage and pulse requirements for starting the car lights.

[0028] In this embodiment, the high-voltage ignition circuit includes a resistor R8, a resistor R9, a diode D1, a diode D2, a capacitor C6, a capacitor C7 and a transformer T2; one end of the primary winding of the transformer T2, one end of the secondary winding, one end of the capacitor C7, one end of the resistor R9, and the anode of the diode D1 are connected to the output HV+ of the high-voltage pulse output circuit; the cathode of the diode D1 is connected to the anode of the diode D2, and the cathode of the diode D2, the other end of the resistor R9, the other end of the capacitor C7 and the other end of the primary winding of the transformer T2; the other end of the secondary winding of the transformer T2 is connected to the car light, and the car light and one end of the resistor R8 are connected to the output HV_GND of the high-voltage pulse output circuit; the other end of the resistor R8 is connected to one end of the capacitor C6, and the other end of the capacitor C6 is connected between the cathode of the diode D1 and the anode of the diode D2.

[0029] The control method of the present invention is to input an external instruction to the central control module according to the model of the vehicle lamp, and the external instruction includes the starting voltage and pulse waveform of the vehicle lamp; the central control module sends a starting signal to the power module, outputs the starting voltage to the low voltage to high voltage module, and outputs the pulse waveform to the starting circuit according to the external instruction;

[0030] The power supply module provides a low voltage to the low-voltage to high-voltage circuit and provides power to the starting circuit according to the starting signal; the low-voltage to high-voltage circuit converts the low voltage of the power supply module into a suitable high voltage required by the high-voltage pulse output circuit according to the starting voltage of the central control module; the starting circuit generates a driving signal according to the pulse waveform of the central control module, the high-voltage pulse output circuit outputs a high-voltage pulse according to the driving signal, and the high-voltage ignition circuit ignites according to the high-voltage pulse.

[0031] The control method of the circuit of the present invention can adjust the corresponding starting voltage and high-voltage pulse according to the requirements of the vehicle lamp, and can adapt to the installation of the vehicle lamp. The present invention can expand the voltage output range by connecting multiple starting circuits in series, and can achieve the output of different voltages. At the same time, through the switch operation of the IGBT tube in the starting circuit, the corresponding pulse waveform is output to meet the different voltage and pulse requirements of the vehicle lamp starting. The control circuit and control method of the present invention have strong adaptability. On the one hand, they can meet the requirements of vehicle lamps of different specifications, and on the other hand, they can meet the voltage requirements when the vehicle lamp is started, and have extremely strong applicability.

Claims

1. A control circuit for automobile lights, the control circuit comprising a power module, a low voltage to high voltage circuit and a central control module, Features: The power module is connected to the low-voltage to high-voltage circuit and the central control module; the low-voltage to high-voltage circuit is connected to a high-voltage pulse output circuit, and the high-voltage pulse output circuit is respectively connected to a starting circuit and a high-voltage ignition circuit; the starting circuit is respectively connected to the central control module and the power module; the power module is used to provide a low voltage for the low-voltage to high-voltage circuit and to provide power for the starting circuit and the central control module; the central control module outputs a starting voltage and a pulse waveform according to an external instruction; the low-voltage to high-voltage circuit converts the low voltage of the power module into the high voltage required by the high-voltage pulse output circuit according to the starting voltage of the central control module; the starting circuit generates a driving signal according to the pulse waveform of the central control module, the high-voltage pulse output circuit outputs a high-voltage pulse according to the driving signal, and the high-voltage ignition circuit lights up the car lights according to the high-voltage pulse; The startup circuit includes a control chip U2, an operational amplifier U3, an operational amplifier U4, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a capacitor C4 and a capacitor C5; the power input terminal of the control chip U2 is connected to the 5V voltage of the power module and is connected to the capacitor C4, and the other end of the capacitor C4 is grounded to the GND terminal of the control chip U2; the signal input terminals INA and INB of the control chip U2 are connected to the central control module; the DT terminal of the control chip U2 is respectively connected to one end of the resistor R1 and the capacitor C5, and the other ends of the resistor R1 and the capacitor C5 are grounded; the OUTA output terminal of the control chip U2 is connected to the positive electrode of the operational amplifier U3 through the resistor R3, the negative electrode of the operational amplifier U3 is connected to the power module through the resistor R2, and the output terminal of the operational amplifier U3 outputs a GA drive signal; the OUTB output terminal of the control chip U2 is connected to the positive electrode of the operational amplifier U4 through the resistor R4, the negative electrode of the operational amplifier U4 is connected to the power module through the resistor R5, and the output terminal of the operational amplifier U4 outputs a GB drive signal.

2. The control circuit for automobile lights according to claim 1, Features: The low-voltage to high-voltage circuit includes a voltage-stabilizing diode D1, an electrolytic capacitor C1, a capacitor C2, a capacitor C3 and a voltage converter U1; the positive input end of the voltage converter U1 is connected in sequence to one end of the capacitor C2, the positive electrode of the electrolytic capacitor C1, the anode of the voltage-stabilizing diode D1 and the positive electrode of the power module; the negative input end of the voltage converter U1 is connected in sequence to the other end of the capacitor C2, the negative electrode of the electrolytic capacitor C1, the cathode of the voltage-stabilizing diode D1 and the negative electrode of the power module; the output end of the voltage converter is respectively connected to the two ends of the capacitor C3 and is connected to the high-voltage pulse output circuit; the signal input end in of the voltage converter is connected to the central control module.

3. The control circuit for automobile lights according to claim 1, Features: The DT pin of the control chip U2 is used to set the dead time pin, and the calculation formula is: ， in, To set the dead time, the unit is ns, is the resistance value of resistor R1, in kΩ. When the DT pin is pulled up to 5 V, the GA drive signal and the GB drive signal are output synchronously without dead time.

4. The control circuit for automobile lights according to claim 1, Features: The high-voltage pulse output circuit is composed of a plurality of switch modules connected in series in sequence; the switch module includes an IGBT tube Q1, an IGBT tube Q2, a resistor R6, a resistor R7, a voltage regulator diode ZD1, a voltage regulator diode ZD2, a voltage regulator diode ZD3, and a voltage regulator diode ZD4; the collector of the IGBT tube Q1, one end of the resistor R6, and the anode of the voltage regulator diode ZD1 are connected to the HV output of the low-voltage to high-voltage circuit and are marked as HV+; the emitter of the IGBT tube Q1 is connected to the collector of the IGBT tube Q2, the other end of the resistor R6, and the resistor R7 One end of the Zener diode ZD2 is connected to the cathode of the Zener diode ZD2 and the anode of the Zener diode ZD3; the emitter of the IGBT tube Q2, the other end of the resistor R7, and the cathode of the Zener diode ZD4 are connected together with the HGND output by the low-voltage to high-voltage circuit, marked as HV_GND; the cathode of the Zener diode ZD1 is connected to the anode of the Zener diode ZD2; the cathode of the Zener diode ZD3 is connected to the anode of the Zener diode ZD4; the base of the IGBT tube Q1 receives the GA drive signal; the base of the IGBT tube Q2 receives the GB drive signal.

5. The control circuit for automobile lights according to claim 4, Features: The high-voltage ignition circuit includes a resistor R8, a resistor R9, a diode D1, a diode D2, a capacitor C6, a capacitor C7 and a transformer T2; one end of the primary winding of the transformer T2, one end of the secondary winding, one end of the capacitor C7, one end of the resistor R9 and the anode of the diode D1 are connected to the output HV+ of the high-voltage pulse output circuit; the cathode of the diode D1 is connected to the anode of the diode D2, and the cathode of the diode D2, the other end of the resistor R9, the other end of the capacitor C7 and the other end of the primary winding of the transformer T2; the other end of the secondary winding of the transformer T2 is connected to the car light, and the car light and one end of the resistor R8 are connected to the output HV_GND of the high-voltage pulse output circuit; the other end of the resistor R8 is connected to one end of the capacitor C6, and the other end of the capacitor C6 is connected between the cathode of the diode D1 and the anode of the diode D2.

6. The control circuit for automobile lights according to any one of claims 1 to 5, Features: According to the model of the headlight, an external instruction is input to the central control module, and the external instruction includes the starting voltage and pulse waveform of the headlight; the central control module sends a starting signal to the power module, outputs the starting voltage to the low-voltage to high-voltage module, and outputs a pulse waveform to the starting circuit according to the external instruction; The power supply module provides a low voltage to the low-voltage to high-voltage circuit and provides power to the starting circuit according to the starting signal; the low-voltage to high-voltage circuit converts the low voltage of the power supply module into a suitable high voltage required by the high-voltage pulse output circuit according to the starting voltage of the central control module; the starting circuit generates a driving signal according to the pulse waveform of the central control module, the high-voltage pulse output circuit outputs a high-voltage pulse according to the driving signal, and the high-voltage ignition circuit lights up the car lights according to the high-voltage pulse.

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