Laser depilator circuit

Abstract

The utility model discloses a laser hair removal instrument circuit which comprises a control circuit, a voltage conversion circuit, a booster circuit, a flash lamp driving circuit, a high-voltage detection circuit, a high-voltage release circuit, a temperature detection circuit, a fan driving circuit and an ice compress circuit. The control circuit is connected with the voltage conversion circuit, the booster circuit, the flash lamp driving circuit, the high-voltage detection circuit, the high-voltage release circuit, the temperature detection circuit, the fan driving circuit and the ice compress circuit. The laser hair removal instrument circuit provided by the utility model has a cold compress function and is better in safety.

Description

TECHNICAL FIELD

[0001] The utility model relates to laser cosmetic technology field more specifically relates to a laser hair removal instrument circuit. BACKGROUND

[0002] The laser hair removal instrument is a kind of equipment using laser technology to remove hair, and the hair follicle is destroyed by the laser energy released instantaneously, so as to achieve the effect of removing hair.However, although the laser hair removal instrument on the market has the hair removal function, due to the principle of laser hair removal, there is inevitably strong heat and pain in the use process, and the user experience is not good;And the laser hair removal instrument generally uses high voltage to generate laser, and there is a certain safety risk. UTILITY MODEL CONTENT

[0003] In order to overcome the above-mentioned shortcomings of the prior art, the utility model provides a laser hair removal instrument circuit, which has cold compress function and better safety.

[0004] The utility model discloses a laser hair removal instrument circuit, including control circuit, voltage conversion circuit, boost circuit, flash lamp drive circuit, high voltage detection circuit, high voltage release circuit, temperature detection circuit, fan drive circuit and ice compress circuit;Control circuit is connected voltage conversion circuit, boost circuit, flash lamp drive circuit, high voltage detection circuit, high voltage release circuit, temperature detection circuit, fan drive circuit and ice compress circuit respectively, and boost circuit is connected flash lamp drive circuit, high voltage detection circuit and high voltage release circuit respectively;Voltage conversion circuit is connected temperature detection circuit and power supply end respectively, and power supply end is connected boost circuit, fan drive circuit and ice compress circuit respectively.

[0005] In a preferred technical scheme, the laser hair removal instrument circuit further includes a key circuit, a buzzer circuit and an indicator lamp circuit;The control circuit is connected to the key circuit, the buzzer circuit and the indicator lamp circuit respectively, the voltage conversion circuit converts the power supply end into a 5V DC power supply to supply power to the buzzer circuit and the indicator lamp circuit, and the indicator lamp circuit is also connected to the boost circuit.

[0006] In a preferred technical scheme, the control circuit includes a control chip U1, the first pin of the control chip U1 is connected to a 5V DC power supply and grounded through a capacitor C6, and the twentieth pin of the control chip U1 is grounded.

[0007] In a preferred embodiment, the voltage conversion circuit includes a step-down chip U5 and a diode D2. The input terminal of the step-down chip U5 is connected to the cathode of the diode D2 and one end of the capacitor C13. The anode of the diode D2 is connected to the power supply terminal, one end of the capacitor C11, and the positive terminals of polarized capacitors CE1, CE2, and CE3. The other ends of capacitors C11 and C13, as well as the negative terminals of polarized capacitors CE1, CE2, and CE3, are all grounded. The output terminal of the step-down chip U5 is connected to one end of capacitors C14 and C15 for outputting a 5V DC power supply. The other ends of capacitors C14 and C15 are grounded.

[0008] In a preferred embodiment, the boost circuit includes a boost chip U3, a transformer T1, and a MOSFET Q4. The input terminal of the boost chip U3 is connected to the nineteenth pin of the control chip U1 via a resistor R20. The output terminal of the boost chip U3 is connected to the gate of the MOSFET Q4 and one end of a resistor R12 via a resistor R11, with the other end of the resistor R12 grounded. The VCC terminal of the boost chip U3 is connected to the power supply terminal and grounded via parallel capacitors C12 and C16. The GND terminal of the boost chip U3 is grounded. The drain of the MOSFET Q4 is connected to the third terminal of the transformer T1 and is connected to the first terminal of the transformer T1 via a diode D4, a parallel resistor R29, and a capacitor C21. The source of the MOSFET Q4 is grounded. The sixth terminal of the transformer T1 is connected to the DC high-voltage terminal via a diode D5. The DC high-voltage terminal is connected to the positive terminal of the polarized capacitor CE4, and the negative terminal of the polarized capacitor CE4 is grounded. The fourth terminal of the transformer T1 is grounded.

[0009] In a preferred embodiment, the flash drive circuit includes a flash lamp F1, a transformer T2, and a silicon controlled rectifier (SCR) SCR1. The first terminal of the flash lamp F1 is connected to a DC high-voltage terminal, the second terminal is grounded through a diode D7, and connected to the anode of the SCR1 through a capacitor C24. The third terminal of the flash lamp F1 is connected to the sixth terminal of the transformer T2. The anode of the SCR1 is connected to the cathode of a diode D3, and connected to the first terminal of the transformer T2 through a capacitor C25. The third terminal of the transformer T2 is grounded. The anode of the SCR1 is also connected to the DC high-voltage terminal through a series resistor R40 and a resistor R39. The DC high-voltage terminal is grounded through a parallel resistor R41 and a capacitor C26. The cathode of the SCR1 is grounded. The control electrode of the SCR1 is grounded through a resistor R38 and a capacitor R23, and connected to the cathode of a diode D6. The anode of the diode D6 is connected to the seventeenth pin of the control chip U1 through a resistor R31.

[0010] In a preferred embodiment, the high-voltage detection circuit includes capacitor C22, resistor R34, resistor R35, resistor R36, and resistor R37; the fourteenth pin of the control chip U1 is grounded through capacitor C22 and resistor R37, and connected to the DC high-voltage terminal through resistors R36, R35, and R34 connected in series.

[0011] In a preferred embodiment, the high-voltage release circuit includes a transistor Q5, resistors R30, R32, and R33; the base of transistor Q5 is connected to the eighteenth pin of the control chip U1 through resistor R30 and grounded through resistor R32; the collector of transistor Q5 is connected to the DC high-voltage terminal through resistor R33; and the emitter of transistor Q5 is grounded.

[0012] In a preferred embodiment, the temperature detection circuit includes a thermistor NTC1, resistors R18 and R19, and capacitor C10. One end of the thermistor NTC1 is grounded, and the other end of the thermistor NTC1 is connected to the fifteenth pin of the control chip U1 through resistor R18, connected to a 5V DC power supply through resistor R19, and grounded through capacitor C10. The fan drive circuit includes a MOSFET Q2. The drain of the MOSFET Q2 is connected to the second end of the fan terminal and connected to the power supply through a parallel diode D1 and capacitor C9. The first end of the fan terminal is connected to the power supply. The gate of the MOSFET Q2 is grounded through resistor R15 and connected to the tenth pin of the control chip U1 through resistor R14. The source of the MOSFET Q2 is grounded through resistor R16 and connected to the thirteenth pin of the control chip U1 through resistor R17.

[0013] In a preferred embodiment, the ice-cold circuit includes an ice-cold chip U2, a thermoelectric cooler, and an inductor L1. The first pin of the ice-cold chip U2 is grounded. The second pin of the ice-cold chip U2 is connected to the second pin of the thermoelectric cooler via inductor L1 and to the sixth pin of the ice-cold chip U2 via capacitor C3. The third pin of the ice-cold chip U2 is grounded via parallel capacitors C4 and C5 and is connected to the power supply. The fourth pin of the ice-cold chip U2 is grounded via resistor R8 and is connected to the second pin of the thermoelectric cooler via resistor R8. The second pin of the thermoelectric cooler is grounded via parallel capacitors C1 and C2, and the first pin of the thermoelectric cooler is grounded. The fifth pin of the ice-cold chip U2 is connected to the sixteenth pin of the control chip U1 via resistor R6.

[0014] As can be seen from the above technical solution, compared with the prior art, the beneficial effects of this utility model are: a laser hair removal device circuit, which controls the flash lamp drive circuit through the control circuit to achieve flash output of different intensities to achieve the purpose of hair removal; at the same time, through the ice pack circuit, it can quickly cool down and apply a cold compress to the hair removal area, soothing the discomfort when using the laser hair removal device and improving the user experience; in addition, the above-mentioned laser hair removal device circuit is also equipped with a high voltage detection circuit and a high voltage release circuit, which can monitor the high voltage value and release the high voltage in a timely manner, thereby effectively improving the safety of using the laser hair removal device.

[0015] In addition, other advantages of this invention will be set forth in the description which follows, in part will be obvious from the description, or may be learned by practice of this invention. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the circuit structure of the laser hair removal device of this utility model;

[0018] Figure 2 This is a schematic diagram of the circuit structure of the control circuit of this utility model;

[0019] Figure 3 This is a schematic diagram of the circuit structure of the voltage conversion circuit of this utility model;

[0020] Figure 4 This is a schematic diagram of the circuit structure of the boost circuit of this utility model;

[0021] Figure 5 This is a schematic diagram of the circuit structure of the flash lamp driving circuit of this utility model;

[0022] Figure 6 This is a schematic diagram of the circuit structure of the high-voltage detection circuit of this utility model;

[0023] Figure 7 This is a schematic diagram of the circuit structure of the high-voltage release circuit of this utility model;

[0024] Figure 8 This is a schematic diagram of the circuit structure of the temperature detection circuit of this utility model;

[0025] Figure 9 This is a schematic diagram of the circuit structure of the fan drive circuit of this utility model;

[0026] Figure 10 This is a schematic diagram of the circuit structure of the ice-packing circuit of this utility model;

[0027] Figure 11 This is a schematic diagram of the circuit structure of the button circuit of this utility model;

[0028] Figure 12 This is a schematic diagram of the circuit structure of the buzzer circuit of this utility model;

[0029] Figure 13 This is a schematic diagram of the circuit structure of the indicator light circuit of this utility model. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] In the description of this utility model, it should be understood that the terms "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0032] Reference Figures 1-13 This invention describes a circuit for a laser hair removal device according to an embodiment of the present invention, which can be used in a laser hair removal device.

[0033] In one embodiment, such as Figure 1 As shown, a laser hair removal device circuit includes a control circuit, a voltage conversion circuit, a boost circuit, a flash drive circuit, a high-voltage detection circuit, a high-voltage release circuit, a temperature detection circuit, a fan drive circuit, and an ice pack circuit. The control circuit is connected to the voltage conversion circuit, the boost circuit, the flash drive circuit, the high-voltage detection circuit, the high-voltage release circuit, the temperature detection circuit, the fan drive circuit, and the ice pack circuit. The boost circuit is connected to the flash drive circuit, the high-voltage detection circuit, and the high-voltage release circuit. The voltage conversion circuit is connected to the temperature detection circuit and the power supply terminal. The power supply terminal is connected to the boost circuit, the fan drive circuit, and the ice pack circuit.

[0034] The laser hair removal device circuit can be powered by a power adapter or a built-in rechargeable battery. The power supply terminal is used to connect the power adapter or the built-in rechargeable battery. The power adapter can be a 12V power adapter to provide 12V voltage to the power supply terminal, that is, the power supply terminal is a 12V DC voltage source.

[0035] In practical implementation, the control circuit controls all functions of the laser hair removal device, including boost control, flash control, button detection, and high-voltage detection. The voltage conversion circuit supplies power, converting 12V to the 5V required by the control circuit. The boost circuit provides high voltage, converting 12V to the high voltage required by the flash, with a maximum voltage of 400V. The flash drive circuit controls the flash's operation; the flash rapidly transfers high heat, destroying hair follicles and achieving hair removal. Simultaneously, the intense light penetrates the skin, directly targeting the hair follicles for precise positioning and avoiding... To avoid unnecessary damage to other skin areas; a high-voltage detection circuit detects the current voltage value of the boost circuit, and the control circuit can control the boost circuit to stop boosting when the voltage reaches the set value; a high-voltage release circuit releases the existing voltage or residual voltage after flashing on the high-voltage path, thereby ensuring the safety of the laser hair removal device circuit; a temperature detection circuit detects the operating temperature of the flash lamp, and the fan is turned on for heat dissipation when the temperature is too high; a fan drive circuit controls the fan to work and dissipate heat; and an ice pack circuit works with a semiconductor cooling chip to achieve rapid cooling, soothe discomfort during use, and improve the user experience.

[0036] The laser hair removal device circuit provided in this embodiment controls the flash drive circuit through a control circuit to achieve flash output of different intensities, thereby achieving the purpose of hair removal. At the same time, through the ice pack circuit, the temperature can be quickly lowered to apply a cold compress to the hair removal area, relieving discomfort during use of the laser hair removal device and improving the user experience. In addition, the above-mentioned laser hair removal device circuit is also equipped with a high voltage detection circuit and a high voltage release circuit, which can monitor the high voltage value and release the high voltage in a timely manner, thereby effectively improving the safety of using the laser hair removal device.

[0037] In this embodiment, the laser hair removal device circuit also includes a button circuit, a buzzer circuit, and an indicator light circuit; the control circuit is connected to the button circuit, the buzzer circuit, and the indicator light circuit respectively; the voltage conversion circuit converts the power supply terminal into 5V DC power to supply power to the buzzer circuit and the indicator light circuit respectively; the indicator light circuit is also connected to a boost circuit.

[0038] The button circuit is used to set parameters such as gear level and working mode; the buzzer circuit is used to generate a working sound when the laser hair removal device is adjusted to indicate that the laser hair removal device is in use; the indicator light circuit is used to indicate the working status of the laser hair removal device circuit, so that users can intuitively understand the working status of the product.

[0039] In this embodiment, the control circuit includes a control chip U1. The first pin of the control chip U1 is connected to a 5V DC power supply and grounded through a capacitor C6. The twentieth pin of the control chip U1 is grounded.

[0040] like Figure 2 As shown, pins 2 to 5 (LED1 to LED4) of control chip U1 are used to connect the indicator light circuit, pins 6 to 8 (KEY1 to KEY3) are used to connect the button circuit, pin 9 (BUZZ) is used to connect the buzzer circuit, pins 10 (FAN) and 13 (FAN_ADC) are used to connect the fan drive circuit, pin 14 (HV_ADC) is used to connect the high voltage detection circuit, pin 15 (NTC) is used to connect the temperature detection circuit, pin 16 (COOL) is used to connect the ice pack circuit, pin 17 (IGBT) is used to connect the flash drive circuit, pin 18 (REL) is used to connect the high voltage release circuit, and pin 19 (PWM) is used to connect the boost circuit.

[0041] In this embodiment, as Figure 3 As shown, the voltage conversion circuit includes a step-down chip U5 and a diode D2. The input terminal of the step-down chip U5 is connected to the cathode of the diode D2 and one end of the capacitor C13. The anode of the diode D2 is connected to the power supply terminal, one end of the capacitor C11, and the positive terminals of polarized capacitors CE1, CE2, and CE3. The other ends of capacitors C11 and C13, as well as the negative terminals of polarized capacitors CE1, CE2, and CE3, are all grounded. The output terminal of the step-down chip U5 is connected to one end of capacitors C14 and C15 to output a 5V DC power supply. The other ends of capacitors C14 and C15 are grounded.

[0042] The ground terminal of the step-down chip U5 is grounded. In specific implementation, the power supply terminal is the input voltage terminal DC1. The first pin of the input voltage terminal DC1 is connected to a 12V DC voltage source, and the second and third pins are both grounded.

[0043] In this embodiment, as Figure 4As shown, the boost circuit includes a boost chip U3, a transformer T1, and a MOSFET Q4. The input terminal of the boost chip U3 is connected to the nineteenth pin (PWM) of the control chip U1 through a resistor R20. The output terminal of the boost chip U3 is connected to the gate of the MOSFET Q4 and one end of a resistor R12 through a resistor R11, with the other end of the resistor R12 grounded. The VCC terminal of the boost chip U3 is connected to the power supply terminal and grounded through parallel capacitors C12 and C16. The GND terminal of the boost chip U3 is grounded.

[0044] The drain of MOSFET Q4 is connected to the third terminal of transformer T1, and is connected to the first terminal of transformer T1 through diode D4, parallel resistor R29 and capacitor C21; the source of MOSFET Q4 is grounded.

[0045] The sixth terminal of transformer T1 is connected to the DC high-voltage terminal DCHV through diode D5. The DC high-voltage terminal DCHV is connected to the positive terminal of polarized capacitor CE4, and the negative terminal of polarized capacitor CE4 is grounded. The fourth terminal of transformer T1 is grounded.

[0046] In this embodiment, as Figure 5 As shown, the flash drive circuit includes flash F1, transformer T2, silicon controlled rectifier SCR1, diode D3, diode D6, diode D7, resistor R31, resistor R38, resistor R39, resistor R40, resistor R41, capacitor C23, capacitor C24, capacitor C25 and capacitor C26.

[0047] The first terminal of the flash unit F1 is connected to the DC high voltage terminal DCHV, the second terminal is grounded through diode D7 and connected to the anode of the silicon controlled rectifier SCR1 through capacitor C24, and the third terminal of the flash unit F1 is connected to the sixth terminal of transformer T2.

[0048] The anode of the SCR1 is connected to the cathode of the diode D3 and to the first terminal of the transformer T2 through the capacitor C25. The third terminal of the transformer T2 is grounded. The anode of the SCR1 is also connected to the DC high-voltage terminal DCHV through the series resistors R40 and R39. The DC high-voltage terminal DCHV is grounded through the parallel resistor R41 and capacitor C26. The cathode of the SCR1 is grounded. The control electrode of the SCR1 is grounded through the resistor R38 and capacitor R23 and connected to the cathode of the diode D6. The anode of the diode D6 is connected to the seventeenth pin (IGBT) of the control chip U1 through the resistor R31.

[0049] In this embodiment, as Figure 6As shown, the high-voltage detection circuit includes capacitor C22, resistors R34, R35, R36, and R37. The fourteenth pin (HV_ADC) of the control chip U1 is grounded through capacitor C22 and resistor R37, and connected to the DC high-voltage terminal DCHV through a series connection of resistors R36, R35, and R34. The fourteenth pin (HV_ADC) is an analog-to-digital converter pin, which converts analog signals into digital signals, used here for high-voltage detection.

[0050] In this embodiment, as Figure 7 As shown, the high-voltage release circuit includes transistor Q5, resistors R30, R32, and R33; the base of transistor Q5 is connected to the eighteenth pin (REL) of control chip U1 through resistor R30, and grounded through resistor R32; the collector of transistor Q5 is connected to the DC high-voltage terminal DCHV through resistor R33; the emitter of transistor Q5 is grounded.

[0051] In this embodiment, as Figure 8 and Figure 9 As shown, the temperature detection circuit includes a thermistor NTC1, resistors R18 and R19, and capacitor C10. One end of the thermistor NTC1 is grounded, and the other end of the thermistor NTC1 is connected to the fifteenth pin (NTC) of the control chip U1 through resistor R18, connected to a 5V DC power supply through resistor R19, and grounded through capacitor C10. The thermistor NTC1 is a negative temperature coefficient thermistor.

[0052] The fan drive circuit includes a MOSFET Q2, a diode D1, a capacitor C9, resistors R14, R15, R16, and R17; the drain of the MOSFET Q2 is connected to the second end of the fan terminal and is connected to the power supply terminal through the parallel diode D1 and capacitor C9; the first end of the fan terminal is connected to the power supply terminal.

[0053] The gate of MOSFET Q2 is grounded through resistor R15 and connected to pin 10 (FAN) of control chip U1 through resistor R14; the source of MOSFET Q2 is grounded through resistor R16 and connected to pin 13 (FAN_ADC) of control chip U1 through resistor R17.

[0054] In this embodiment, as Figure 10As shown, the ice-cold circuit includes an ice-cold chip U2, a thermoelectric cooler, an inductor L1, capacitors C1, C2, C3, C4, and C5, and resistors R6, R7, and R8. The first pin of the ice-cold chip U2 is grounded, and the second pin of the ice-cold chip U2 is connected to the second pin of the thermoelectric cooler through inductor L1 and to the sixth pin of the ice-cold chip U2 through capacitor C3. The third pin of the ice-cold chip U2 is grounded through parallel capacitors C4 and C5 and is connected to the power supply.

[0055] The fourth pin of the ice pack chip U2 is grounded through resistor R8 and connected to the second pin of the thermoelectric cooler through resistor R8; the second pin of the thermoelectric cooler is grounded through parallel capacitors C1 and C2, and the first pin of the thermoelectric cooler is grounded; the fifth pin of the ice pack chip U2 is connected to the sixteenth pin (COOL) of the control chip U1 through resistor R6.

[0056] In this embodiment, as Figure 11 As shown, the button circuit includes button S1, button S2 and button S3. One end of button S1, button S2 and button S3 is grounded, and the other end is connected to the sixth to eighth pins (KEY1 to KEY3) of the control chip U1.

[0057] In this embodiment, as Figure 12 As shown, the buzzer circuit includes a buzzer LS1, a transistor Q6, resistors R50 and R51. One end of the buzzer LS1 is connected to a 5V DC power supply, and the other end is connected to the collector of the transistor Q6 through resistor R51. The base of the transistor Q6 is connected to the ninth pin (BUZZ) of the control chip U1 through resistor R50. The emitter of the transistor Q6 is grounded. LS1 is a piezoelectric buzzer.

[0058] In this embodiment, as Figure 13As shown, the indicator circuit includes LED1, LED2, LED3, LED4, LED5, LED6, LED7, a high-voltage indicator, resistors R1, R2, R3, R4, R43, and R42; the second to fifth pins (LED1 to LED4) of the control chip U3 are used to connect the LED1 to LED4 in the indicator circuit. Specifically, the second pin (LED1) of the control chip U1 is connected to the cathode of LED1, the anode of LED2, the anode of LED5, and the cathode of LED6 via resistor R1; the third pin (LED2) of the control chip U1 is connected to the anode of LED1, the cathode of LED2, the anode of LED4, and the cathode of LED3 via resistor R2; the fourth pin (LED3) of the control chip U1 is connected to the anode of LED3, the cathode of LED4, the cathode of LED5, and the anode of LED6 via resistor R3; and the fifth pin (LED4) of the control chip U1 is connected to the cathode of LED7 via resistor R4, with the anode of LED7 connected to a 5V DC power supply.

[0059] In addition, the anode of the high-voltage indicator light is connected to the high-voltage terminal of the DCHV via resistors R43 and R42, and the cathode is grounded. The high-voltage indicator light is red, serving as a high-voltage warning.

[0060] Other configurations and operations of the laser hair removal device circuit according to the embodiments of this utility model are known to those skilled in the art and will not be described in detail here.

[0061] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0062] In the description of this specification, references to the terms "embodiment," "specific embodiment," "example," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example that is included in at least one embodiment or example of the present invention.

[0063] In this specification, the illustrative expressions of the terms used do not necessarily refer to the same embodiments or examples. Moreover, the specific features, structures, materials, or characteristics described may be combined with each other in any suitable manner in one or more embodiments or examples without interference or contradiction.

Claims

1. A circuit for a laser hair removal device, characterized by: The control circuit, voltage conversion circuit, voltage boosting circuit, flash lamp driving circuit, high voltage detection circuit, high voltage release circuit, temperature detection circuit, fan driving circuit and ice application circuit are included. The control circuit is connected with the voltage conversion circuit, voltage boosting circuit, flash lamp driving circuit, high voltage detection circuit, high voltage release circuit, temperature detection circuit, fan driving circuit and ice application circuit respectively, and the voltage boosting circuit is connected with the flash lamp driving circuit, high voltage detection circuit and high voltage release circuit respectively. The voltage conversion circuit is connected with the temperature detection circuit and power supply end respectively, and the power supply end is connected with the voltage boosting circuit, fan driving circuit and ice application circuit respectively.

2. The circuit for a laser hair removal device according to claim 1, characterized in that The key circuit, buzzer circuit and indicator lamp circuit are also included. The control circuit is connected with the key circuit, buzzer circuit and indicator lamp circuit respectively, the voltage conversion circuit converts the power supply end into 5V DC power supply to supply power to the buzzer circuit and indicator lamp circuit, and the indicator lamp circuit is also connected with the voltage boosting circuit.

3. The circuit for a laser hair removal device according to claim 2, characterized in that The control circuit includes control chip U1, the first pin of the control chip U1 is connected with the 5V DC power supply and grounded through capacitor C6, and the twentieth pin of the control chip U1 is grounded.

4. The circuit for a laser hair removal device of claim 3, wherein: The voltage conversion circuit includes voltage reduction chip U5 and diode D2. The input end of the voltage reduction chip U5 is connected with the cathode of the diode D2 and one end of capacitor C13, the anode of the diode D2 is connected with the power supply end, one end of capacitor C11, and the positive pole of polarized capacitor CE1, polarized capacitor CE2 and polarized capacitor CE3 respectively, and the other end of the capacitor C11, capacitor C13, and the negative pole of the polarized capacitor CE1, polarized capacitor CE2 and polarized capacitor CE3 are grounded. The output end of the voltage reduction chip U5 is connected with one end of capacitor C14 and capacitor C15 for outputting the 5V DC power supply, and the other end of the capacitor C14 and capacitor C15 is grounded.

5. The circuit for a laser hair removal device of claim 3, wherein: The voltage boosting circuit includes voltage boosting chip U3, transformer T1 and MOS tube Q4. The input end of the voltage boosting chip U3 is connected with the nineteenth pin of the control chip U1 through resistor R20, the output end of the voltage boosting chip U3 is connected with the gate of the MOS tube Q4 and one end of resistor R12 through resistor R11, the other end of the resistor R12 is grounded, the VCC end of the voltage boosting chip U3 is connected with the power supply end and grounded through capacitor C12 and capacitor C16 in parallel, and the GND end of the voltage boosting chip U3 is grounded. The drain of the MOS tube Q4 is connected with the third end of the transformer T1 and the first end of the transformer T1 through diode D4 and parallel resistor R29 and capacitor C21, and the source of the MOS tube Q4 is grounded. The sixth end of the transformer T1 is connected with the DC high voltage end through diode D5, the DC high voltage end is connected with the positive pole of polarized capacitor CE4, the negative pole of the polarized capacitor CE4 is grounded, and the fourth end of the transformer T1 is grounded.

6. The circuit for a laser hair removal device of claim 5, wherein: The flash lamp driving circuit comprises a flash lamp F1, a transformer T2 and a thyristor SCR1; The first end of the flash lamp F1 is connected to the DC high voltage end, the second end is connected to the ground through a diode D7 and connected to the anode of the thyristor SCR1 through a capacitor C24, and the third end of the flash lamp F1 is connected to the sixth end of the transformer T2; The anode of the thyristor SCR1 is connected to the cathode of a diode D3 and connected to the first end of the transformer T2 through a capacitor C25, and the third end of the transformer T2 is connected to the ground; the anode of the thyristor SCR1 is also connected to the DC high voltage end through a resistor R40 and a resistor R39 in series, and the DC high voltage end is connected to the ground through a resistor R41 and a capacitor C26 in parallel; The cathode of the thyristor SCR1 is connected to the ground, the control electrode of the thyristor SCR1 is connected to the ground through a resistor R38 and a capacitor R23 respectively, and connected to the cathode of a diode D6, and the anode of the diode D6 is connected to the seventeenth pin of the control chip U1 through a resistor R31.

7. The circuit for a laser hair removal device according to claim 6, characterized in that The high-voltage detection circuit comprises a capacitor C22, a resistor R34, a resistor R35, a resistor R36 and a resistor R37; The fourteenth pin of the control chip U1 is connected to the ground through the capacitor C22, the resistor R37 respectively, and connected to the DC high voltage end through the resistor R36, the resistor R35 and the resistor R34 in series.

8. The circuit for a laser hair removal device according to claim 7, characterized in that The high-voltage release circuit comprises a transistor Q5, a resistor R30, a resistor R32 and a resistor R33; The base of the transistor Q5 is connected to the eighteenth pin of the control chip U1 through the resistor R30, and connected to the ground through the resistor R32; the collector of the transistor Q5 is connected to the DC high voltage end through the resistor R33; and the emitter of the transistor Q5 is connected to the ground.

9. The laser hair removal instrument circuit of claim 8, wherein: The temperature detection circuit comprises a thermistor NTC1, one end of the thermistor NTC1 is connected to the ground, the other end of the thermistor NTC1 is connected to the fifteenth pin of the control chip U1 through a resistor R18, connected to the 5V DC power supply through a resistor R19, and connected to the ground through a capacitor C10; The fan driving circuit comprises a MOS tube Q2; the drain of the MOS tube Q2 is connected to the second end of the fan terminal, and connected to the power supply end through a diode D1 and a capacitor C9 in parallel, the first end of the fan terminal is connected to the power supply end; the gate of the MOS tube Q2 is connected to the ground through a resistor R15, and connected to the tenth pin of the control chip U1 through a resistor R14; the source of the MOS tube Q2 is connected to the ground through a resistor R16, and connected to the thirteenth pin of the control chip U1 through a resistor R17.

10. The circuit for a laser hair removal device according to any of claims 3 to 9, characterized in that The ice compress circuit comprises an ice compress chip U2, a semiconductor refrigeration piece and an inductor L1; The first pin of the ice compress chip U2 is grounded, the second pin of the ice compress chip U2 is connected with the second pin of the semiconductor refrigeration piece through the inductor L1, and is connected with the sixth pin of the ice compress chip U2 through the capacitor C3; the third pin of the ice compress chip U2 is grounded through the parallel connection of the capacitor C4 and the capacitor C5, and is connected with the power supply end; The fourth pin of the ice compress chip U2 is grounded through the resistor R8, and is connected with the second pin of the semiconductor refrigeration piece through the resistor R8; the second pin of the semiconductor refrigeration piece is grounded through the parallel connection of the capacitor C1 and the capacitor C2, the first pin of the semiconductor refrigeration piece is grounded; the fifth pin of the ice compress chip U2 is connected with the sixteenth pin of the control chip U1 through the resistor R6.

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