Flash lamp driving circuit of hair removal instrument

Abstract

The utility model discloses a flash lamp driving circuit of a hair removal instrument. The flash lamp driving circuit comprises a charging module, an energy storage capacitor C1, a diode D9, a diode D10, a capacitor D34, a capacitor D35, a flash lamp FT1, a flash lamp FT2, a resistor R29, a capacitor C36, a high-voltage coil T1, a diode D16, a diode D13, a resistor R33, a resistor R34, a resistor R31, a resistor R32, a resistor R35, a resistor R36, a capacitor C38, a capacitor C39, a diode D7, a diode D8 and an on-off control assembly. According to the flash lamp driving circuit of the hair removal instrument, the compensation capacitor of the diode root is added to the anodes of the two flash lamps, and the one-way conduction of the diode is utilized, so that the compensation capacitor of the other flash lamp does not discharge to the outside after any flash lamp flashes, thereby achieving the purpose of stabilizing the anode voltage of the flash lamp; and the condition that one flash lamp flashes and the other flash lamp does not flash is avoided.

Description

Technical Field

[0001] The utility model relates to a flash lamp driving circuit of a hair removal device. Background Art

[0002] Most of the existing hair removal devices use a single lamp to emit light. However, with the improvement of living standards, users have a strong demand for fast and effective hair removal, and the dual flash lamp solution came into being.

[0003] Existing solutions use dual drivers to trigger two flashes, but this results in a bulky, unportable, and expensive product. Alternatively, a single driver can trigger two flashes, but due to inconsistent flash consistency, one flash may fire while the other does not, resulting in low energy and inconsistent results. Utility Model Content

[0004] The utility model provides a flash lamp driving circuit for a hair removal device to solve the above-mentioned technical problems, specifically adopting the following technical solutions:

[0005] A hair removal device flash light drive circuit, comprising: a charging module, an energy storage capacitor C1, a diode D9, a diode D10, a capacitor D34, a capacitor D35, a flash light FT1, a flash light FT2, a resistor R29, a capacitor C36, a high-voltage coil T1, a diode D16, a diode D13, a resistor R33, a resistor R34, a resistor R31, a resistor R32, a resistor R35, a resistor R36, a capacitor C38, a capacitor C39, a diode D7, a diode D8, and an on / off control component;

[0006] The charging module is connected to both ends of the energy storage capacitor C1;

[0007] One end of the energy storage capacitor C1 is grounded, and the other end is respectively connected to the anode of the diode D9, the anode of the diode D10, the resistor R29, the cathode of the Mössbauer laser D13, the resistor R33 and the resistor R34;

[0008] One end of the cathode of the diode D9 is connected to the capacitor C34 and the anode of the flash lamp FT1, and the other end of the capacitor C34 is grounded;

[0009] One end of the cathode of the diode D10 is connected to the capacitor C35 and the anode of the flash lamp FT2, and the other end of the capacitor C35 is grounded;

[0010] The other end of the resistor R29 is connected to the capacitor C36 and the positive electrode of the diode D16, the other end of the capacitor C36 is connected to one end of the primary of the high-voltage coil T1, the other end of the primary of the high-voltage coil T1 is grounded, one end of the secondary of the high-voltage coil T1 is connected to the cathode and trigger electrode of the flashlight FT1 and the cathode and trigger electrode of the flashlight FT2, and the other end of the secondary of the high-voltage coil T1 is grounded;

[0011] The cathode of the flashlight FT1 is connected to the anode of the diode D7, the cathode of the diode D7 is connected to one end of the on-off control component, the cathode of the flashlight FT2 is connected to the anode of the diode D8, the cathode of the diode D8 is connected to one end of the on-off control component, and the other end of the on-off control component is grounded;

[0012] The other end of the resistor R34 is grounded via the capacitor R39 and the resistor R36, and the other end of the resistor R33 is grounded via the capacitor R38 and the resistor R35.

[0013] The anode of the diode D13 is connected to one end of the on-off control component. One end of the resistor R32 is connected between the resistor R33 and the capacitor C38, and the other end is connected to the anode of the diode D13. One end of the resistor R31 is connected between the resistor R34 and the capacitor C39, and the other end is connected to the anode of the diode D13.

[0014] The anode of the diode D7 is connected between the capacitor C38 and the resistor R35 , and the anode of the diode D8 is connected between the capacitor C39 and the resistor R36 .

[0015] Furthermore, the on-off control component includes a transistor Q1 and a gate drive module.

[0016] Furthermore, the transistor Q1 is a MOS transistor.

[0017] Furthermore, the gate driving module is connected to the gate of the transistor Q1 , the source of the transistor Q1 is grounded, and the drain of the transistor Q1 is connected to the cathode of the diode D7 , the cathode of the diode D8 , and the anode of the diode D13 .

[0018] Furthermore, the capacitor C1 is an electrolytic capacitor.

[0019] Furthermore, the charging module adopts one of the following.

[0020] The utility model is beneficial in that the provided hair removal device flash lamp driving circuit adds a compensation capacitor at the root of a diode at the anode of the two flash lamps, and utilizes the unidirectional conductivity of the diode. When any one flash lamp flashes first, the compensation capacitor of the other flash lamp will not discharge to the outside, thereby achieving the purpose of stabilizing the anode voltage of the flash lamp and avoiding the situation where one flash lamp flashes while the other flash lamp does not. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0022] Figure 1 The utility model is a schematic diagram of a flash lamp driving circuit of a hair removal device. DETAILED DESCRIPTION

[0023] The following describes in detail embodiments of the present application. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0024] like Figure 1 The figure shows a driving circuit of a hair removal device flash light of the present application, including: a charging module, an energy storage capacitor C1, a diode D9, a diode D10, a capacitor D34, a capacitor D35, a flash light FT1, a flash light FT2, a resistor R29, a capacitor C36, a high-voltage coil T1, a diode D16, a diode D13, a resistor R33, a resistor R34, a resistor R31, a resistor R32, a resistor R35, a resistor R36, a capacitor C38, a capacitor C39, a diode D7, a diode D8 and an on-off control component.

[0025] Specifically, the charging module is connected to both ends of the energy storage capacitor C1. The charging module can be a power adapter, a switching power supply module, or connected to an external AC power supply via a wire. The external AC power supply undergoes conventional operations such as rectification, filtering, and voltage reduction, and is converted into DC power to charge the energy storage capacitor C1.

[0026] One end of the energy storage capacitor C1 is grounded, and the other end is respectively connected to the anode of the diode D9, the anode of the diode D10, the resistor R29, the cathode of the M0 laser D13, the resistor R33 and the resistor R34.

[0027] Preferably, the capacitor C1 is an electrolytic capacitor, the cathode of the capacitor C1 is grounded, and the anode is connected to the anode of the diode D9, the anode of the diode D10, the resistor R29, the cathode of the M0 laser D13, the resistor R33 and the resistor R34.

[0028] The cathode of diode D9 is connected to capacitor C34 and the anode of flashlight FT1 at one end, while the other end of capacitor C34 is grounded. The cathode of diode D10 is connected to capacitor C35 and the anode of flashlight FT2 at one end, while the other end of capacitor C35 is grounded. The other end of resistor R29 is connected to capacitor C36 and the anode of diode D16. The other end of capacitor C36 is connected to one end of the primary of high-voltage coil T1, while the other end of the primary of high-voltage coil T1 is grounded. One end of the secondary of high-voltage coil T1 is connected to the cathode and trigger electrode of flashlight FT1 and the cathode and trigger electrode of flashlight FT2, while the other end of the secondary of high-voltage coil T1 is grounded. The cathode of flashlight FT1 is connected to the anode of diode D7, while the cathode of diode D7 is connected to one end of the on-off control assembly. The cathode of flashlight FT2 is connected to the anode of diode D8, while the cathode of diode D8 is connected to one end of the on-off control assembly, while the other end of the on-off control assembly is grounded. The other end of the resistor R34 is grounded via the capacitor R39 and the resistor R36, respectively. The other end of the resistor R33 is grounded via the capacitor R38 and the resistor R35, respectively. The anode of the diode D13 is connected to one end of the on / off control component. One end of the resistor R32 is connected between the resistor R33 and the capacitor C38, and the other end is connected to the anode of the diode D13. One end of the resistor R31 is connected between the resistor R34 and the capacitor C39, and the other end is connected to the anode of the diode D13. The anode of the diode D7 is connected between the capacitor C38 and the resistor R35, and the anode of the diode D8 is connected between the capacitor C39 and the resistor R36.

[0029] Preferably, the on / off control component includes a transistor Q1 and a gate drive module. The gate drive module is connected to the gate of the transistor Q1. The source of the transistor Q1 is grounded, and the drain of the transistor Q1 is connected to the cathode of the diode D7, the cathode of the diode D8, and the anode of the diode D13. As an optional embodiment, the transistor Q1 can be a MOS transistor. As another optional embodiment, the transistor Q1 can also be replaced with a switching device such as an IGBT.

[0030] Working Principle: The charging module charges storage capacitor C1, and simultaneously charges compensation capacitor C35 through diode D10. Compensation capacitor C34 is charged through diode D9. Energy is stored in the primary side of high-voltage coil T1 (pins 1-2) via resistor R29 and capacitor C36. Resistors R33 and R35 charge capacitor C38, and capacitor C39 is charged through resistors R34 and R36. The gate driver module then turns on transistor Q1 (the gate driver module controls the on-time of transistor Q1 and the energy output). Capacitor C36 discharges to ground through diode D16 and transistor Q1D, generating a reverse voltage on the primary side (1-2) of high-voltage coil T1, with pin 2 positive and pin 1 negative. Simultaneously, a reverse voltage is induced on the secondary side of high-voltage coil T1, which is applied between the trigger electrode and cathode of flashlights FT1 and FT2. Capacitor C38 discharges to ground through resistor R32, and capacitor C39 discharges to ground through resistor R31, which instantly lowers the voltage at the cathodes of flash lamps FT1 and FT2, making the anode and cathode voltages of flash lamps FT1 and FT2 approximately twice the voltage of energy storage capacitor C1, thereby ensuring reliable triggering of the two flash lamps.

[0031] The reason why one of the flashlights does not flash is that the flashing flashlight flashes first, releasing the energy of the energy storage capacitor C1. The voltage of the energy storage capacitor C1 decreases, causing the voltage between the anode and cathode of the flashlight that does not flash to be too small and fail to reach the threshold. In this application, a compensation capacitor at the root of the diode is added to the anode of the two flashlights. By utilizing the unidirectional conductivity of the diode, when the two flashlights are inconsistent and any one of them flashes first, the compensation capacitor of the other flashlight will not discharge to the outside, thereby achieving the purpose of stabilizing the anode voltage of the flashlight. This avoids the situation where one flashlight flashes and the other flashlight does not flash.

[0032] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the above embodiments do not limit the present invention in any form, and any technical solution obtained by equivalent replacement or equivalent transformation falls within the scope of protection of the present invention.

Claims

1. A hair removal device flash lamp driving circuit, characterized in that: Includes: charging module, energy storage capacitor C1, diode D9, diode D10, capacitor D34, capacitor D35, flash lamp FT1, flash lamp FT2, resistor R29, capacitor C36, high-voltage coil T1, diode D16, diode D13, resistor R33, resistor R34, resistor R31, resistor R32, resistor R35, resistor R36, capacitor C38, capacitor C39, diode D7, diode D8 and on-off control component; The charging module is connected to both ends of the energy storage capacitor C1; One end of the energy storage capacitor C1 is grounded, and the other end is respectively connected to the anode of the diode D9, the anode of the diode D10, the resistor R29, the cathode of the diode D13, the resistor R33 and the resistor R34; One end of the cathode of the diode D9 is connected to the capacitor C34 and the anode of the flash lamp FT1, and the other end of the capacitor C34 is grounded; One end of the cathode of the diode D10 is connected to the capacitor C35 and the anode of the flash lamp FT2, and the other end of the capacitor C35 is grounded; The other end of the resistor R29 is connected to the capacitor C36 and the positive electrode of the diode D16, the other end of the capacitor C36 is connected to one end of the primary of the high-voltage coil T1, the other end of the primary of the high-voltage coil T1 is grounded, one end of the secondary of the high-voltage coil T1 is connected to the cathode and trigger electrode of the flashlight FT1 and the cathode and trigger electrode of the flashlight FT2, and the other end of the secondary of the high-voltage coil T1 is grounded; The cathode of the flashlight FT1 is connected to the anode of the diode D7, the cathode of the diode D7 is connected to one end of the on-off control component, the cathode of the flashlight FT2 is connected to the anode of the diode D8, the cathode of the diode D8 is connected to one end of the on-off control component, and the other end of the on-off control component is grounded; The other end of the resistor R34 is grounded via the capacitor C39 and the resistor R36, and the other end of the resistor R33 is grounded via the capacitor C38 and the resistor R35. The anode of the diode D13 is connected to one end of the on-off control component. One end of the resistor R32 is connected between the resistor R33 and the capacitor C38, and the other end is connected to the anode of the diode D13. One end of the resistor R31 is connected between the resistor R34 and the capacitor C39, and the other end is connected to the anode of the diode D13. The anode of the diode D7 is connected between the capacitor C38 and the resistor R35 , and the anode of the diode D8 is connected between the capacitor C39 and the resistor R36 .

2. The hair removal device flash lamp driving circuit according to claim 1, characterized in that: The on-off control component includes a transistor Q1 and a gate drive module.

3. The hair removal device flash lamp driving circuit according to claim 2, characterized in that: The transistor Q1 is a MOS transistor.

4. The hair removal device flash lamp driving circuit according to claim 3, characterized in that: The gate driving module is connected to the gate of the transistor Q1 , the source of the transistor Q1 is grounded, and the drain of the transistor Q1 is connected to the cathode of the diode D7 , the cathode of the diode D8 , and the anode of the diode D13 .

5. The hair removal device flash lamp driving circuit according to claim 1, characterized in that: The capacitor C1 is an electrolytic capacitor.

6. The hair removal device flash lamp driving circuit according to claim 1, characterized in that: The charging module adopts a power adapter or a switching power supply module.

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