Strong pulsed light therapeutic apparatus

Abstract

The utility model relates to the technical field of hair removal instruments, aims to solve the technical problem of how to accurately control the charging and discharging process of an energy storage capacitor and stabilize the output voltage of a booster circuit so as to improve the performance of equipment, and discloses an intense pulsed light therapeutic instrument which comprises a main control module, a light emitting circuit, the energy storage capacitor and the booster circuit, a driving module for driving the light emitting circuit is arranged between the main control module and the light emitting circuit, the light emitting circuit comprises a switching tube Q4, a diode D3 and a flash lamp tube, a source electrode of the switching tube Q4 is grounded, a grid electrode of the switching tube Q4 is used for inputting a driving signal, a drain electrode of the switching tube Q4 is connected with a cathode of the diode D3, an anode of the diode D3 is connected with one end of the flash lamp tube, and the other end of the flash lamp tube is connected with the main control module. The other end of the flash lamp tube is connected with the positive electrode of the energy storage capacitor, and the positive electrode of the energy storage capacitor is further connected with a voltage monitoring circuit which feeds back charging and discharging parameters to the main control module. And a voltage monitoring circuit is configured, so that accurate control on the charging and discharging process of the energy storage capacitor is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of hair removal devices, in particular to an intense pulsed light therapy instrument. Background Art

[0002] In the design of existing hair removal devices, a high-voltage circuit is usually adopted to provide energy for a flash lamp tube to generate intense light pulses for hair removal. However, traditional hair removal devices have the problem of inaccurate charging control, which in turn affects the luminous intensity of the flash lamp tube and the hair removal effect. Specifically, since the charging and discharging process of the energy storage capacitor cannot be accurately adjusted, the working voltage of the flash lamp tube may fluctuate during the charging process, making it unable to stably stay within the optimal voltage range. This voltage instability will not only cause obvious fluctuations in the light pulse intensity of the flash lamp tube, reducing the hair removal efficiency, but also may cause potential damage to the skin and increase the risk during use.

[0003] In addition, due to the inherent instability of the output voltage of the high-voltage circuit, the situation where the flash lamp tube works at a non-optimal voltage is more serious. This unstable voltage output not only affects the overall performance and effect of the hair removal device, but also may cause the device to fail to achieve the expected hair removal effect during actual use. Due to the lack of an effective voltage monitoring mechanism in traditional hair removal devices, the device cannot respond to voltage fluctuations in a timely manner, resulting in difficulty in ensuring the effect and safety during each use. In this case, the user experience will be greatly reduced because the device cannot ensure that the intensity and quality of each light emission pulse are consistent, thus affecting the stability and safety of the hair removal effect. How to accurately control the charging and discharging process of the energy storage capacitor and stabilize the output voltage of the boost circuit has become a key technical problem for improving the performance and safety of hair removal devices. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an intense pulsed light therapy instrument to solve the technical problem of how to accurately control the charging and discharging process of the energy storage capacitor and stabilize the output voltage of the boost circuit to improve the performance of the device.

[0005] To achieve the above purpose, the utility model provides an intense pulsed light therapy instrument, which includes a main control module, a light-emitting circuit, an energy storage capacitor, and a boost circuit controlled by the main control module and used to charge the energy storage capacitor. The main control module is connected with a key circuit and a display circuit. A driving module for driving the light-emitting circuit is arranged between the main control module and the light-emitting circuit. The light-emitting circuit includes a switching tube Q4, a diode D3, and a flash lamp tube. The source electrode of the switching tube Q4 is grounded. The gate electrode of the switching tube Q4 is used to input a driving signal. The drain electrode of the switching tube Q4 is connected to the cathode of the diode D3. The anode of the diode D3 is connected to one end of the flash lamp tube. The other end of the flash lamp tube is connected to the positive electrode of the energy storage capacitor. A voltage monitoring circuit for feeding back the charging and discharging parameters to the main control module is also arranged at the positive electrode of the energy storage capacitor.

[0006] Through the centralized control of the main control module, each functional module can cooperate efficiently to ensure the stability and reliability of the intense pulsed light therapy instrument. The configuration of the switching tube, diode, and flash lamp tube in the light output circuit makes the output of light pulses more accurate, effectively improving the hair removal effect. The energy storage capacitor provides instantaneous high-energy output to ensure sufficient energy supply for the flash lamp tube during operation, enhancing the hair removal effect and efficiency. The drive module U6 is located between the switching tube Q4 and the main control module. The drive module U6 can prevent overcurrent and overvoltage, improve the reliability of the circuit system, provide an appropriate drive voltage to control the gate of the switching tube Q4, achieve fast switching action, reduce switching losses, improve efficiency, and at the same time can provide electrical isolation for the main control module to avoid being affected by the IGBT. The configuration of the voltage monitoring circuit realizes the precise control of the charging and discharging process of the energy storage capacitor.

[0007] Furthermore, it includes a fan drive circuit controlled by the main control module to drive the fan and a temperature sensing circuit for detecting the internal temperature of the machine and feeding back to the main control module.

[0008] The fan drive circuit controls the fan to work through the main control module, effectively dissipating heat, preventing the internal temperature of the intense pulsed light therapy instrument from being too high, and extending the service life of the device. The temperature sensing circuit monitors the internal temperature of the device in real time and provides real-time data to the main control module to prevent component damage caused by overheating, improving the safety and stability of the device.

[0009] Furthermore, it includes a refrigeration drive circuit controlled by the main control module to drive the thermoelectric cooler.

[0010] The refrigeration drive circuit can provide a local cooling effect for the hair removal area by controlling the operation of the thermoelectric cooler, reducing the discomfort of the skin during hair removal, increasing the comfort of the user, and optimizing the user experience.

[0011] Furthermore, the boost circuit includes a transformer T1, an NMOS transistor Q3, and a switch driver U4. The input end of the switch driver U4 is connected to the main control module, and the signal output end of the switch driver U4 is connected to the gate of the NMOS transistor Q3; the controlled end of the switch driver U4 is connected to the main control module; the transformer T1 includes a primary coil and a secondary coil. A capacitor C7 and a resistor R8 are connected in parallel between the two ends of the primary coil. A diode D2 is provided. The anode of the diode D2 is connected to one end of the primary coil, the cathode of the diode D2 is connected to the resistor R8, the anode of the diode D2 is connected to the drain of the NMOS transistor Q3, the source of the NMOS transistor Q3 is grounded, one end of the secondary coil is grounded, and the other end of the secondary coil outputs a high-voltage power supply through the diode D1.

[0012] The boost circuit, through the cooperation of a switch driver, a transformer, and an NMOS transistor, achieves an efficient voltage boosting process, provides a stable high-voltage power supply for the energy storage capacitor, and ensures the high-energy output of the flash tube. This design can also effectively reduce the power consumption of the circuit and improve the energy utilization rate.

[0013] Furthermore, the voltage monitoring circuit includes a first series resistor circuit formed by sequentially connecting multiple current-limiting resistors in series. One end of the first series resistor circuit is connected to the high-voltage output terminal of the boost circuit, and the other end of the first series resistor circuit is connected to the main control module.

[0014] Through the series design of the current-limiting resistors, the voltage monitoring circuit can accurately monitor the output voltage of the boost circuit and feedback the voltage data to the main control module. In this way, the output voltage can be adjusted according to the actual situation, ensuring the safety and stability of the energy storage capacitor charging, preventing overvoltage damage to the circuit, and improving the reliability of the entire system.

[0015] Furthermore, the first series resistor circuit includes resistor R19, resistor R18, resistor R16, and resistor R15 connected in series in sequence. The first terminal of resistor R19 is connected to the high-voltage output terminal, the second terminal of resistor R15 is connected to the main control module, the second terminal of resistor R15 is grounded through capacitor C13, and the first terminal of resistor R15 is grounded through resistor R17 and capacitor C14 respectively.

[0016] Through the refined configuration of multiple resistors and capacitors, the accuracy and stability of voltage monitoring can be further improved. The combined design of resistors R19 to R15 and capacitors C13 and C14 ensures that the voltage signal can be correctly transmitted to the main control module, effectively preventing misoperation caused by signal fluctuations and increasing the reliability of the circuit.

[0017] Furthermore, a trigger control circuit is also provided. The trigger control circuit includes a TVS diode D7, a thyristor T2, and a second series resistor circuit. One end of the second series resistor circuit is connected to the high-voltage output terminal, the other end of the second series resistor circuit is connected to the cathode of the TVS diode D7, the anode of the TVS diode D7 is grounded, the node of the second series resistor circuit is connected to the anode of the thyristor T2 through capacitor C20, the cathode of the thyristor T2 is grounded, the gate of the thyristor T2 is used to input a control signal, and the node of the second series resistor circuit is also connected to the drain of the switch transistor Q4 through diode D5.

[0018] By using the combination of a TVS diode and a thyristor, when the trigger control circuit detects that the voltage reaches a certain trigger point, it can quickly respond for protective discharge, avoiding the high-voltage output of the boost circuit exceeding the safe range and preventing damage to other circuit components. At the same time, it provides a trigger protection function for the circuit and improves the safety and stability of the device.

[0019] Further, the second series resistance circuit includes a resistor R21, a resistor R24, and a resistor R26. The first terminal of the resistor R21 is connected to the high-voltage output terminal of the boost circuit. The second terminal of the resistor R21 is connected to the first terminal of the resistor R24. The second terminal of the resistor R24 is connected to the first terminal of the resistor R26. The second terminal of the resistor R26 is connected to the cathode of the TVS diode D7.

[0020] Through the configuration of the resistors R21, R24, and R26, the second series resistance circuit can precisely control the trigger voltage point of the trigger circuit, ensuring that the trigger circuit starts under appropriate voltage conditions and providing effective overvoltage protection.

[0021] Further, two light-emitting circuits are provided.

[0022] By providing two light-emitting circuits (i.e., two flash tubes), the hair removal effect of the intense pulsed light therapy instrument can be enhanced, providing a larger illumination range and intensity to meet the needs of different users. It can also improve the working efficiency of the device, enabling it to complete the hair removal process more quickly.

[0023] The intense pulsed light therapy instrument provided by the present utility model has the following advantages:

[0024] The intense pulsed light therapy instrument provided by the present utility model realizes precise control of the charge and discharge process of the energy storage capacitor by setting a drive module between the main control module and the light-emitting circuit, and configuring a voltage monitoring circuit between the high-voltage output terminal of the boost circuit and the main control module. The voltage monitoring circuit monitors the actual voltage of the high-voltage output in real time through the series voltage division of multiple current-limiting resistors, and feeds the voltage information back to the main control module. The main control module adjusts the conduction time of the NMOS transistor Q3 by adjusting the duty cycle of the PWM signal according to the feedback signal, thereby precisely controlling the output voltage of the boost circuit, keeping the charging voltage of the energy storage capacitor within a stable range, avoiding overcharging or undercharging, ensuring that the flash tubes of the light-emitting circuit can work in the best state, improving the stability and safety of the hair removal effect, and extending the service life of the device. Description of the Drawings

[0025] Figure 1 It is a functional structure block diagram of the intense pulsed light therapy instrument provided by the present utility model;

[0026] Figure 2 It is a structure diagram of the boost circuit provided by the present utility model;

[0027] Figure 3 It is a structure diagram of the light-emitting circuit, drive module, and related protection circuits provided by the present utility model;

[0028] Figure 4 It is a structure diagram of the refrigeration drive circuit provided by the present utility model. Detailed implementation mode

[0029] In order to make the purpose, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0030] Refer to Figure 1 , the present utility model provides a intense pulsed light therapeutic apparatus, including a main control module, a light output circuit, an energy storage capacitor, a driving module controlled by the main control module and driving the light output circuit, a boosting circuit controlled by the main control module and charging the energy storage capacitor, a fan driving circuit controlled by the main control module and driving a fan, a refrigeration driving circuit controlled by the main control module and driving a refrigeration sheet, a temperature sensing circuit for detecting the internal temperature of the machine and feeding back to the main control module, a first step-down circuit for supplying power to the main control module and a second step-down circuit for supplying power to the driving module. The main control module is connected with a key circuit and a display circuit. The key circuit is used to generate a switch signal and feed it back to the main control module. The main control module then controls the light output circuit through the driving module, and a DC input interface for connecting an external input DC power supply and supplying power to the first step-down circuit, the second step-down circuit and the boosting circuit respectively.

[0031] Among them, the main control module is a single-chip microcomputer, which is used to control the fan driving circuit, control the refrigeration driving circuit, change the boosting circuit, collect voltage through ADC, read the state of the key circuit, judge touch and control the LED display screen refresh. The fan mainly provides heat dissipation for the system to keep it running within a safe temperature range. The refrigeration driving circuit needs to provide a stable DC voltage to ensure that the refrigeration sheet can work according to the set temperature regulation requirements. It selects and adjusts the voltage according to the specifications and working requirements of the refrigeration sheet to ensure that the system can operate within a safe and efficient working range. The temperature sensing circuit measures the internal temperature of the machine through its specific resistance (negative temperature coefficient, that is, as the temperature increases, the resistance value decreases) temperature characteristic. An NTC thermistor is used, and its resistance value changes with the temperature. When the temperature in the circuit exceeds the set value, the resistance value of the NTC thermistor will change rapidly, thereby triggering corresponding protection measures to prohibit light output.

[0032] In an embodiment of the present utility model, the DC input interface inputs 24V direct current, the first step-down circuit steps it down and stabilizes the voltage to 5V, and the second step-down circuit steps it down and stabilizes the voltage to 15V.

[0033] Refer to Figure 2The boost circuit includes a transformer T1, an NMOS tube Q3 and a switch driver U4. The input end of the switch driver U4 is connected to the main control module. The first end of the switch driver U4 is a power input end, which is connected to the output end of the first step-down circuit and is grounded through a capacitor C8; the second end of the switch driver U4 is vacant; the third end of the switch driver U4 is a signal output end, which is connected to the gate of the NMOS tube Q3; the fourth end of the switch driver U4 is a ground end, which is grounded; the fifth end of the switch driver U4 is a controlled end, which is used to input a PWM signal and is connected to the main control module. The main control module outputs a PWM signal to the controlled end of the switch driver U4, and the switch driver U4 amplifies the PWM signal and outputs it to the NMOS tube Q3.

[0034] Transformer T1 includes a primary coil and a secondary coil. The two ends of the primary coil ( Figure 2 A capacitor C7 is connected between the first end and the second end of the primary coil, a resistor R8 is connected in parallel with the capacitor C7, a diode D2 is provided, an anode of the diode D2 is connected to one end of the primary coil, and a cathode of the diode D2 is connected to the resistor R8.

[0035] The anode of the diode D2 is connected to the drain of the NMOS tube Q3, and the source of the NMOS tube Q3 is grounded. The diode D2 prevents reverse current.

[0036] One end of the secondary coil is grounded, and the other end of the secondary coil outputs a high voltage power supply HV+ through a diode D1. The diode D1 is used for rectification. The anode of the diode D1 is connected to the secondary coil, and the cathode of the diode D1 is used as a high voltage output end for outputting the high voltage power supply HV+.

[0037] In this boost circuit, the flyback switching power supply principle is adopted to boost the input 24V voltage through a 1:5 turns ratio to charge the energy storage capacitor and store energy for the intense pulsed light therapy device. The main control module provides a PWM signal to the controlled end of the switch driver U4. The switch driver U4 receives this PWM signal and outputs it to the gate of the NMOS tube Q3 after amplification. As a switch, the NMOS tube Q3 is controlled by the pulse width of the PWM signal and determines the time when the current flows through the primary coil of the transformer T1. During the energy coupling transfer between the primary coil and the secondary coil of the transformer T1, the storage and release of the inductor energy forms a boost effect.

[0038] At the end of each switching cycle, the secondary coil of T1 generates an induced electromotive force, which is rectified by D1 to generate a high-voltage DC power supply (HV+) to provide power to the load and charge the energy storage capacitor at the same time.

[0039] The switch driver U4 controls the gate of the NMOS tube Q3 and accurately controls the conduction time and frequency of the switch tube through PWM signal regulation to achieve control of the output voltage.

[0040] Refer to Figure 3 , the drive module U6 is a power driver, specifically a drive module of IGBT type, having two input terminals and two output terminals. Its power supply comes from the second buck circuit, and is used to amplify the drive signal sent by the main control module. The light-emitting circuit includes a switching transistor Q4. The gate of the switching transistor Q4 is connected to the output terminal of the power driver. The source of the switching transistor Q4 is grounded. The drain of the switching transistor Q4 is connected to the cathode of the diode D3. The anode of the diode D3 is connected to one end of the flash tube Light1. The other end of the flash tube Light1 is connected to the high-voltage output terminal of the boost circuit. The high-voltage output terminal is connected to the positive electrode of a storage capacitor, and the negative electrode of the storage capacitor is grounded.

[0041] Among them, the diode D3 is used to prevent reverse current. The switching transistor Q4 is an NMOS transistor, and its function is to control the turning on and off of the flash tube Light1. And the switching transistor Q4 is controlled by the drive module U6. The drive module U6 receives the signal from the main control module and amplifies it to drive the switching transistor Q4, and the switching transistor Q4 controls the on-off of the flash tube Light1. The drive module U6 is between the switching transistor Q4 and the main control module. The main function of the drive module U6 can prevent overcurrent and overvoltage, improve the reliability of the circuit system, provide an appropriate drive voltage to control the gate of the switching transistor Q4, achieve fast switching action, reduce switching losses, improve efficiency, and at the same time can also provide electrical isolation for the main control module to avoid being affected by the IGBT.

[0042] A voltage monitoring circuit for feeding back charge and discharge parameters to the main control module is also provided, including resistors R19, R18, R16, and R15 connected in series in sequence. One end of this series circuit is connected to the high-voltage output terminal HV+ of the boost circuit, that is, the first end of the resistor R19 is connected to the high-voltage output terminal HV+. The second end of the resistor R19 is connected to the first end of the resistor R18. The second end of the resistor R18 is connected to the first end of the resistor R16. The second end of the resistor R16 is connected to the first end of the resistor R15. The second end of the resistor R15 is connected to the main control module. The second end of the resistor R15 is grounded through the capacitor C13. The first end of the resistor R15 is grounded through the resistor R17 and the capacitor C14 respectively.

[0043] The voltage monitoring circuit monitors the actual voltage of the high-voltage output and feeds back the information to the main control module through the voltage division of R19, R18, R16, and R15. The main control module adjusts the duty cycle of the PWM signal according to the feedback signal, dynamically adjusts the conduction time of the NMOS transistor Q3, so as to stabilize the output voltage.

[0044] In the whole circuit, when discharging is required, the key circuit is started. The main control module makes the switching transistor Q4 conduct instantaneously through the drive module U6, and discharges through the flash tube Light1.

[0045] Furthermore, two or more light-emitting circuits can be set up, that is, two or more flash tubes are set up to enhance the hair removal effect. The circuit is the same as the one composed of the flash tube Light1 and the switching tube Q4, etc. The principle will not be elaborated here and is within the protection scope of the present utility model.

[0046] A trigger control circuit is also provided, which includes three resistors R21, R24, and R26 connected in series in sequence. The first end of the resistor R21 is connected to the high-voltage output end of the boost circuit. The second end of the resistor R21 is connected to the first end of the resistor R24. The second end of the resistor R24 is connected to the first end of the resistor R26. The second end of the resistor R26 is connected to the cathode of the TVS tube D7, and the anode of the TVS tube D7 is grounded. The common node of the resistor R24 and the resistor R26 is connected to the anode of the diode D5, and the cathode of the diode D5 is connected to the drain of the switching tube Q4.

[0047] Among them, the TVS tube D7 provides overvoltage protection. When the voltage exceeds a specific threshold, the TVS tube D7 conducts, providing a low-impedance path to clamp the voltage at a safe level, thereby protecting other parts of the circuit.

[0048] The anode of the diode D3 is grounded through the resistor R25 with a resistance value of 100K, and the anode of the diode D3 is connected to the cathode of the diode D5 through the capacitor C22.

[0049] The common node of the resistor R24 and the resistor R26 is also connected to one end of the capacitor C20. The other end of the capacitor C20 is connected to the anode of the thyristor T2, and the cathode of the thyristor T2 is grounded. The gate of the thyristor T2 is used to input a control signal. If the voltage reaches the trigger point and the thyristor T2 receives the control signal, the thyristor T2 conducts to bypass the high-frequency clutter and prevent damage to the switching tube Q4.

[0050] The present utility model provides a protection and trigger mechanism to prevent the high-voltage output generated by the boost circuit from exceeding the safe range for voltage monitoring, and the TVS tube D7 is used for voltage clamping. The combination of the capacitor C20 and the thyristor T2 provides a trigger mechanism to protect the circuit by discharging when the voltage reaches a dangerous level. Refer to Figure 4, the refrigeration drive circuit includes a buck regulator U5 and an inductor L1. The first terminal of the buck regulator U5 is the self-boost terminal, which is connected to the third terminal through a resistor R20 and a capacitor C18 in sequence; the second terminal of the buck regulator U5 is the power input terminal, which is connected to the DC input interface; the third terminal of the buck regulator U5 is the switch control terminal, which outputs voltage to the thermoelectric cooler through the inductor L1. The voltage output terminal of the inductor L1 is grounded through a capacitor C24 and a capacitor C26 for filtering; the fourth terminal of the buck regulator U5 is the ground terminal, which is grounded; the fifth terminal of the buck regulator U5 is the feedback terminal, which is used to detect the output voltage, and is connected to the voltage output terminal of the inductor L1 through a resistor R27, and is also grounded through a capacitor C25 and a resistor R29 respectively; the sixth terminal of the buck regulator U5 is the current regulation terminal, which is grounded; the seventh terminal of the buck regulator U5 is the enable terminal, which is connected to the main control module through a resistor R23; the eighth terminal of the buck regulator U5 is the soft start terminal, which is grounded through a capacitor C17.

[0051] The buck regulator U5, as the core component of the refrigeration drive circuit, mainly functions to stably step down the input DC voltage to a suitable voltage and provide a stable working voltage for the thermoelectric cooler. This design can ensure that the thermoelectric cooler works under a stable voltage, thus avoiding performance instability or damage caused by voltage fluctuations. The inductor L1 is used in conjunction with the capacitors C24 and C26 to smooth the output voltage. It helps to reduce the ripple and noise in the current, improve the quality of the power output, which is very important for the sensitive thermoelectric cooler, and can reduce the impact of current fluctuations on the performance of the thermoelectric cooler and extend its service life.

[0052] The fifth terminal of the buck regulator U5 serves as the feedback terminal, monitors the output voltage of the inductor L1 through the resistor R27, and combines with the feedback control circuit. This feedback regulation mechanism enables the regulator to automatically adjust the output to maintain a stable voltage, further enhancing the stability and accuracy of the circuit and adapting to different load conditions.

[0053] The eighth terminal of the buck regulator U5 is the soft start terminal, which is grounded through the capacitor C17 to achieve the soft start function. It can avoid the instantaneous impact of current when the circuit is powered on, reduce the stress on the power supply and load during startup, and contribute to improving the reliability and service life of the entire circuit.

[0054] The seventh terminal of the buck regulator U5 is the enable terminal, which is connected to the main control module through the resistor R23, allowing the main control module to perform on / off control of the buck regulator. This enables the circuit to have good controllability, can dynamically adjust the working state of the thermoelectric cooler according to requirements, thus saving energy consumption and optimizing performance.

[0055] The first terminal of the step-down voltage regulator U5 is the self-boosting terminal, which is connected to the third terminal through the resistor R20 and the capacitor C18. This helps to stabilize the reference voltage inside U5 and ensure the stability of the output voltage when the input voltage fluctuates. This stability enhancement measure further improves the reliability of the refrigeration drive circuit.

[0056] The intense pulsed light therapy apparatus provided by the present utility model has the following advantages:

[0057] The intense pulsed light therapy apparatus of the present utility model realizes precise control of the charge and discharge process of the energy storage capacitor by setting a drive module between the main control module and the light output circuit, and configuring a voltage monitoring circuit between the high-voltage output terminal of the boost circuit and the main control module. The voltage monitoring circuit monitors the high-voltage output of the boost circuit in real time by series voltage division of multiple current-limiting resistors and feeds the voltage data back to the main control module. According to the feedback signal, the main control module dynamically adjusts the on-time of the NMOS transistor Q3 by adjusting the duty cycle of the PWM signal, thereby precisely controlling the output voltage of the boost circuit and keeping the charging voltage of the energy storage capacitor within a stable range, avoiding overcharging or undercharging. In this way, the flash lamp tube can work in the best state, thus significantly improving the stability and safety of the hair removal effect, and at the same time extending the service life of the device. The configured fan drive circuit and refrigeration drive circuit contribute to effective heat dissipation and local cooling, improve the comfort of using the device, prevent component damage caused by overheating, and enhance the safety and stability of the device. In addition, the trigger control circuit, through the combination of the TVS tube and the thyristor, can quickly respond for protective discharge when detecting that the voltage exceeds the safe range, preventing damage to other circuit components. The two-way light output circuit enhances the hair removal effect, provides a larger illumination range and intensity, meets the needs of different users, and improves the work efficiency. The overall design optimizes the performance and user experience of the intense pulsed light therapy apparatus, ensuring an efficient and safe hair removal process.

[0058] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A high-intensity pulsed light treatment apparatus, comprising a main control module, a light output circuit, an energy storage capacitor, and a boost circuit that is controlled by the main control module and charges the energy storage capacitor. The main control module is connected to a key circuit and a display circuit, and is characterized in that, A driving module for driving the light-emitting circuit is arranged between the main control module and the light-emitting circuit. The light-emitting circuit includes a switching transistor Q4, a diode D3, and a flash lamp tube. The source of the switching transistor Q4 is grounded. The gate of the switching transistor Q4 is used for inputting a driving signal. The drain of the switching transistor Q4 is connected to the cathode of the diode D3. The anode of the diode D3 is connected to one end of the flash lamp tube. The other end of the flash lamp tube is connected to the positive electrode of an energy storage capacitor. A voltage monitoring circuit for feeding back charge and discharge parameters to the main control module is also arranged at the positive electrode of the energy storage capacitor.

2. The intense pulsed light treatment apparatus according to claim 1, wherein It includes a fan driving circuit controlled by the main control module and driving a fan, and a temperature sensing circuit for detecting the temperature inside the machine and feeding back to the main control module.

3. The intense pulsed light therapeutic apparatus according to claim 2, wherein It includes a refrigeration driving circuit controlled by the main control module and driving a Peltier device.

4. The intense pulsed light therapeutic apparatus according to claim 1, wherein The boost circuit includes a transformer T1, an NMOS transistor Q3, and a switch driver U4. The input end of the switch driver U4 is connected to the main control module. The signal output end of the switch driver U4 is connected to the gate of the NMOS transistor Q3. The controlled end of the switch driver U4 is connected to the main control module. The transformer T1 includes a primary coil and a secondary coil. A capacitor C7 and a resistor R8 are connected in parallel between the two ends of the primary coil. A diode D2 is arranged. The anode of the diode D2 is connected to one end of the primary coil. The cathode of the diode D2 is connected to the resistor R8. The anode of the diode D2 is connected to the drain of the NMOS transistor Q3. The source of the NMOS transistor Q3 is grounded. One end of the secondary coil is grounded. The other end of the secondary coil outputs a high-voltage power supply through a diode D1.

5. The intense pulsed light treatment apparatus according to claim 1, wherein The voltage monitoring circuit includes a first series resistor circuit formed by sequentially connecting a plurality of current-limiting resistors in series. One end of the first series resistor circuit is connected to the high-voltage output end of the boost circuit. The other end of the first series resistor circuit is connected to the main control module.

6. The intense pulsed light treatment apparatus according to claim 5, wherein, The first series resistor circuit includes a resistor R19, a resistor R18, a resistor R16, and a resistor R15 connected in series in sequence. The first end of the resistor R19 is connected to the high-voltage output end. The second end of the resistor R15 is connected to the main control module. The second end of the resistor R15 is grounded through a capacitor C13. The first end of the resistor R15 is grounded through a resistor R17 and a capacitor C14 respectively.

7. The intense pulsed light therapeutic apparatus according to claim 1, characterized in that, A trigger control circuit is also arranged. The trigger control circuit includes a TVS diode D7, a thyristor T2, and a second series resistor circuit. One end of the second series resistor circuit is connected to the high-voltage output end. The other end of the second series resistor circuit is connected to the cathode of the TVS diode D7. The anode of the TVS diode D7 is grounded. The node of the second series resistor circuit is connected to the anode of the thyristor T2 through a capacitor C20. The cathode of the thyristor T2 is grounded. The gate of the thyristor T2 is used for inputting a control signal. The node of the second series resistor circuit is also connected to the drain of the switching transistor Q4 through a diode D5.

8. The intense pulsed light therapeutic apparatus according to claim 7, wherein The second series resistance circuit includes a resistor R21, a resistor R24, and a resistor R26. The first terminal of the resistor R21 is connected to the high-voltage output terminal of the boost circuit. The second terminal of the resistor R21 is connected to the first terminal of the resistor R24. The second terminal of the resistor R24 is connected to the first terminal of the resistor R26. The second terminal of the resistor R26 is connected to the cathode of the TVS diode D7.

9. The intense pulsed light treatment apparatus according to claim 1, wherein, Two light-emitting circuits are provided.

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