Pulsed light apparatus and control method thereof

Abstract

The invention discloses a control method of pulsed light equipment and related equipment, the pulsed light equipment is a hair removal instrument or a skin tendering instrument, the pulsed light equipment comprises a charging module, a capacitor and a light source, the capacitor is connected between the charging module and the light source, the charging module is used for charging the capacitor, and the capacitor is used for supplying power to the light source so that the light source flashes. The control method comprises the following steps: controlling the light source to flash N times in a flash window so as to release energy to the skin in an energy superposition and accumulation manner; wherein N is an integer greater than or equal to 3, and when the light source flashes, the capacitor is controlled to discharge the light source; controlling the charging module to charge the capacitor within the interval time of two adjacent flashes; wherein the interval time of the two adjacent flashes is longer than the interval time of the other two adjacent flashes in the flash window. According to the embodiment of the invention, the user experience can be improved.

Description

[0001] This case is a divisional application, the parent application number is 2024104060255, the application date is April 3, 2024, and the case name is Control method of pulsed light equipment and related equipment. Technical Field

[0002] The present application relates to the field of pulsed light technology, and in particular to a pulsed light device and a control method thereof. Background Art

[0003] Pulsed light devices are widely used in the beauty and personal care fields. To generate sufficiently intense pulsed light in a short period of time, capacitors are used to power these devices. A single discharge converts the entire energy stored in the capacitor into a single, intense pulse of light. However, the high energy generated by this single discharge not only increases user discomfort, such as pain, but also shortens the lifespan of sensitive components in the device, reducing its durability. Summary of the Invention

[0004] The embodiments of the present application provide a pulse light device and a control method thereof, which can control the flashing of the light source in batches, disperse the output of energy, improve the user experience and extend the service life of the device.

[0005] In a first aspect, an embodiment of the present application discloses a control method for a pulsed light device, wherein the pulsed light device is a hair removal device or a skin rejuvenation device, and the pulsed light device includes a charging module, a capacitor, and a light source, wherein the capacitor is connected between the charging module and the light source, the charging module is used to charge the capacitor, and the capacitor is used to power the light source so that the light source flashes. The control method includes: controlling the light source to flash N times within a flash window to release energy to the skin by energy superposition and accumulation; wherein N is an integer greater than or equal to 3, and when the light source flashes, controlling the capacitor to discharge the light source; and controlling the charging module to charge the capacitor within the interval between two adjacent flashes; wherein the interval between the two adjacent flashes is greater than the interval between other two adjacent flashes in the flash window.

[0006] Optionally, the controlling the light source to flash N times within a flash window to release energy to the skin by energy superposition and accumulation, and controlling the charging module to charge the capacitor during an interval between two adjacent flashes comprises:

[0007] Controlling the light source to flash M times, where M is an integer greater than or equal to 1;

[0008] Controlling the charging module to charge the capacitor for a preset time, wherein the preset time is greater than or equal to 0.4 seconds and less than or equal to 0.95 seconds;

[0009] The light source is controlled to flash K times, where K is an integer greater than or equal to 1, and N is greater than or equal to M+K.

[0010] Optionally, when M is greater than 1, the time interval between adjacent flashes in the M flashes is greater than or equal to 0.06 seconds and less than or equal to 0.4 seconds; and / or,

[0011] The preset duration is greater than or equal to 0.5 seconds and less than or equal to 0.7 seconds; and / or,

[0012] When K is greater than 1, the time interval between adjacent flashes in the K flashes is greater than or equal to 0.06 seconds and less than or equal to 0.4 seconds.

[0013] Optionally, the time interval between adjacent flashes in the M flashes being greater than or equal to 0.06 seconds and less than or equal to 0.4 seconds includes:

[0014] The time interval between adjacent flashes in the M flashes is greater than or equal to 0.1 seconds and less than or equal to 0.3 seconds;

[0015] and / or,

[0016] The time interval between adjacent flashes in the K flashes is greater than or equal to 0.06 seconds and less than or equal to 0.4 seconds, including:

[0017] The time interval between adjacent flashes in the K flashes is greater than or equal to 0.1 seconds and less than or equal to 0.3 seconds.

[0018] Optionally, the flash duration of each flash of the light source is greater than or equal to 0.3 milliseconds and less than or equal to 10 milliseconds; and / or,

[0019] There is a flash in the flashes after the interval between the two adjacent flashes, and the flash duration of the flash is longer than the flash durations of other flashes in the flash window.

[0020] Optionally, the flash duration of each flash of the light source is greater than or equal to 0.5 milliseconds and less than or equal to 4 milliseconds; and / or,

[0021] The flash duration of the flash is greater than or equal to 1.2 milliseconds and less than or equal to 3 milliseconds.

[0022] Optionally, when M is 2, the durations of the two flashes in the M flashes are equal, or the duration of the first flash in the M flashes is shorter than the duration of the second flash; and / or,

[0023] When K is 2, the durations of the two flashes in the K flashes are equal, or the duration of the first flash in the K flashes is shorter than the duration of the second flash.

[0024] Optionally, when K is 2, the duration of the first flash in the K flashes is less than the duration of the second flash, and in the K flashes, the duration of the first flash is greater than or equal to 0.3 milliseconds and less than or equal to 0.7 milliseconds, and the duration of the second flash is greater than or equal to 1.2 milliseconds and less than or equal to 3 milliseconds.

[0025] Optionally, the pulse light device further includes a gear setting module, wherein the gear setting module is provided with a plurality of gears, and the control method further includes:

[0026] In response to a user selecting a target gear position from the plurality of gear positions through the gear setting module, determining the target gear position;

[0027] The controlling the light source to flash N times within a flash window comprises:

[0028] Controlling the light source to flash N times within a flash window according to the target gear position;

[0029] The multiple gears correspond to one or more of N, M, K, preset duration, flash duration of each flash of the light source, and time interval between two adjacent flashes that are different.

[0030] In a second aspect, an embodiment of the present application discloses a control device for a pulse light device, which includes a charging module, a capacitor and a light source, wherein the capacitor is connected between the charging module and the light source, the charging module is used to charge the capacitor, and the capacitor is used to power the light source to make the light source flash, and the control device includes: a control module, used to control the light source to flash N times within a flash window to release energy to the skin by energy superposition and accumulation; wherein N is an integer greater than or equal to 3, and when the light source flashes, the capacitor is controlled to discharge the light source; within the interval between two adjacent flashes, the charging module is controlled to charge the capacitor; wherein the interval between the two adjacent flashes is greater than the interval between other two adjacent flashes in the flash window.

[0031] In a third aspect, an embodiment of the present application discloses a pulse light device, comprising a controller, a charging module, a capacitor and a light source, wherein the capacitor is connected between the charging module and the light source, the charging module is used to charge the capacitor, and the capacitor is used to power the light source so that the light source flashes, and the controller is used to: control the light source to flash N times within a flash window to release energy to the skin through energy superposition and accumulation; wherein N is an integer greater than or equal to 3, and when the light source flashes, the capacitor is controlled to discharge the light source; within the interval between two adjacent flashes, the charging module is controlled to charge the capacitor; wherein the interval between the two adjacent flashes is greater than the interval between other two adjacent flashes in the flash window.

[0032] In a fourth aspect, an embodiment of the present application discloses a pulsed light device, comprising a processor and a memory, wherein the processor calls a computer program stored in the memory to implement the method disclosed in the first aspect above.

[0033] In a fifth aspect, an embodiment of the present application discloses a computer-readable storage medium, on which a computer program or computer instructions are stored. When the computer program or computer instructions are executed by a processor, the method disclosed in the first aspect above is implemented.

[0034] In a sixth aspect, an embodiment of the present application discloses a computer program product, which includes a computer program code. When the computer program code is run by a processor, the above method is executed.

[0035] An embodiment of the present application provides a control method for a pulse light device, which includes a charging module, a capacitor and a light source, wherein the capacitor is connected between the charging module and the light source, the charging module is used to charge the capacitor, and the capacitor is used to power the light source to cause the light source to flash. The control method for the pulse light device includes: controlling the light source to flash N times within a flash window to release energy to the skin through energy superposition and accumulation; wherein N is an integer greater than or equal to 3, and when the light source flashes, controlling the capacitor to discharge the light source; and controlling the charging module to charge the capacitor within an interval between two adjacent flashes; wherein the interval between the two adjacent flashes is greater than the interval between other two adjacent flashes in the flash window. It can be seen that compared to releasing the electrical energy in the capacitor once, the present application controls the light source to flash N times within a flash window, where N is an integer greater than or equal to 3, so that the pulse light device releases the energy in the capacitor through at least three flashes, dividing the single discharge process of the capacitor into multiple charging and discharging processes. The energy of each discharge is controlled in a segmented manner to avoid the high energy impact caused by a single discharge, so that the pulse light device can disperse the energy output without sacrificing the required intensity of the pulse light, and treat the skin in a gentler and more controllable manner. This can not only reduce the pain and other discomfort of the user during use, but also reduce the impact on sensitive components in the device and extend the service life of the device. Moreover, charging the capacitor immediately after each discharge can increase the energy released by the pulse light device within the flash window, thereby improving the effect on the skin. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0037] Figure 1 This is a schematic structural diagram of a pulsed light device disclosed in an embodiment of the present application;

[0038] Figure 2 This is a flow chart of a control method for a pulsed light device disclosed in an embodiment of the present application;

[0039] Figure 3 It is a schematic structural diagram of another pulse light device disclosed in an embodiment of the present application;

[0040] Figure 4 This is a schematic structural diagram of a charging module disclosed in an embodiment of the present application;

[0041] Figure 5 This is a schematic structural diagram of another charging module disclosed in an embodiment of the present application;

[0042] Figure 6 This is a structural diagram of another charging module disclosed in an embodiment of the present application;

[0043] Figure 7 This is a schematic structural diagram of a power input circuit disclosed in an embodiment of the present application;

[0044] Figure 8 This is a schematic diagram of the structure of a voltage acquisition circuit disclosed in an embodiment of the present application;

[0045] Figure 9 This is a schematic structural diagram of a power conversion circuit disclosed in an embodiment of the present application;

[0046] Figure 10 This is a schematic structural diagram of a voltage stabilizing circuit disclosed in an embodiment of the present application;

[0047] Figure 11 This is a schematic structural diagram of another pulse light device disclosed in an embodiment of the present application;

[0048] Figure 12 This is a schematic diagram of the structure of a voltage conversion circuit disclosed in an embodiment of the present application;

[0049] Figure 13 This is a schematic structural diagram of another pulse light device disclosed in an embodiment of the present application;

[0050] Figure 14 This is a schematic structural diagram of a driving circuit disclosed in an embodiment of the present application;

[0051] Figure 15 This is a structural diagram of another charging module disclosed in the embodiment of this application

[0052] Figure 16 This is a schematic diagram of the structure of another pulse light device disclosed in the embodiment of this application

[0053] Figure 17 This is a schematic structural diagram of another pulse light device disclosed in an embodiment of the present application;

[0054] Figure 18 This is a structural diagram of another pulse light device disclosed in an embodiment of the present application. DETAILED DESCRIPTION

[0055] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0056] The present invention discloses a control method for a pulsed light device and related devices, which can control the flash of the light source in batches, disperse the energy output, improve the user experience, and extend the service life of the device. Detailed descriptions are given below.

[0057] In order to better understand the embodiments of the present application, the relevant technologies are described below.

[0058] Pulsed light technology has been widely used in the fields of beauty and medicine. Pulsed light devices can treat the skin by emitting pulsed light of a specific wavelength to achieve various effects such as removing spots and hair.

[0059] Current pulsed light devices typically use a one-time discharge method to generate the required intense pulsed light. While this method can provide high-intensity pulsed light for a short period of time, the one-time high-intensity discharge can reduce user experience and stress sensitive components within the device, affecting its stability and lifespan.

[0060] In order to solve the above technical problems, in an embodiment of the present application, a pulse light device includes a charging module, a capacitor and a light source, the capacitor is connected between the charging module and the light source, the charging module is used to charge the capacitor, and the capacitor is used to power the light source to make the light source flash. The control method of the pulse light device includes: controlling the light source to flash N times within a flash window, N is an integer greater than or equal to 3, when the light source flashes, controlling the capacitor to discharge the light source; in the interval between two adjacent flashes, controlling the charging module to charge the capacitor; wherein the interval between the two adjacent flashes is greater than the interval between other two adjacent flashes in the flash window. It can be seen that compared to releasing the electrical energy in the capacitor once, the present application controls the light source to flash N times within a flash window, where N is an integer greater than or equal to 3, so that the pulse light device releases the energy in the capacitor through at least three flashes, dividing the single discharge process of the capacitor into multiple charging and discharging processes. The energy of each discharge is controlled in a segmented manner to avoid the high energy impact caused by a single discharge, so that the pulse light device can disperse the energy output without sacrificing the required intensity of the pulse light, and treat the skin in a gentler and more controllable manner. This can not only reduce the pain and other discomfort of the user during use, but also reduce the impact on sensitive components in the device and extend the service life of the device. Moreover, charging the capacitor immediately after each discharge can increase the energy released by the pulse light device within the flash window, thereby improving the effect on the skin.

[0061] In order to better understand the embodiments of the present application, the network structure of the embodiments of the present application is first described below.

[0062] See also Figure 1 , Figure 1This is a schematic diagram of the structure of a pulse light device disclosed in the embodiment of this application. Figure 1 As shown, the pulse light device may include a charging module 10 , a capacitor 20 and a light source 30 , wherein the capacitor 20 is connected between the charging module 10 and the light source 30 .

[0063] In this application, the pulse light device can be selected as a hair removal device or a skin rejuvenation device, and the following description mainly uses the hair removal device as an example.

[0064] The control method in the present application can be applied to the controller of a pulse light device. The pulse light device may also include a charging module, a capacitor and a light source. The capacitor is connected between the charging module and the light source. The charging module can charge the capacitor, and the capacitor can power the light source 20 to make the light source flash. The control method of the pulse light device may include the following steps.

[0065] 201. Control a light source to flash N times within a flash window, where N is an integer greater than or equal to 3. When the light source flashes, control the capacitor to discharge the light source.

[0066] And in the interval between two adjacent flashes, the charging module is controlled to charge the capacitor; wherein the interval between the two adjacent flashes is greater than the interval between other two adjacent flashes in the flash window.

[0067] Specifically, the light source may flash multiple times in response to multiple operations by the operator. To distinguish this from the above situation, it can be said that the light source is controlled to flash N times within a flash window.

[0068] The pulse light device can control the light source to flash N times within a flash window through preset control logic, thereby achieving precise control of the number of light source flashes (i.e., N times) to meet different user needs.

[0069] Each time the light source flashes, it can output a specific amount of energy to achieve skin treatment. Specifically, by controlling the number of times the light source flashes in each flash window (N), the total energy released in the flash window can be adjusted. Each time the light source flashes, it releases a certain amount of energy to the skin. The number of flashes in a flash window determines the total energy released to the skin. By releasing energy to the skin at least three times in a flash window, the energy is released to the skin in a superposition and accumulation manner, which can avoid excessive single energy. Thus, the skin can be treated in a gentler and more controllable manner. This can not only reduce the pain and other discomfort experienced by the user during use, but also reduce the impact on sensitive components in the device, extending the service life of the device.

[0070] Each flash of a light source requires a certain amount of energy. By controlling the discharge of a capacitor into the light source, the electrical energy stored in the capacitor is converted into light energy, providing the necessary energy for the light source to flash. This energy is then output as pulsed light through the light source of the pulsed light device.

[0071] This application can achieve a flash by controlling the capacitor to discharge the light source once, so that the light source flashes each time the capacitor discharges. The duration of each flash can be controlled by precisely controlling the discharge time of the capacitor to the light source, so that the capacitor releases only enough energy to produce the required light intensity and duration, rather than completely depleting the energy in the capacitor. This method not only saves energy but also ensures that the light source can maintain a stable output during continuous flashes.

[0072] In one application scenario, to achieve long-term or even permanent hair removal, N can be set to 6. Continuous high-frequency flashes can effectively destroy hair follicles, achieving long-term or even permanent hair removal. By precisely controlling the energy output of each flash in continuous flash mode, safety and treatment effectiveness can be guaranteed, while minimizing damage to surrounding skin.

[0073] In another application scenario, for users who are undergoing pulsed light hair removal treatment for the first time or have sensitive skin, in order to improve the experience of the hair removal process, N can be set to 4. By reducing the number of flashes, the risk of damage to the skin caused by excessive heat energy can be reduced. Fewer flashes (N=4) means that the total energy absorbed by the skin within a flash window is lower, which can reduce discomfort during the hair removal process, such as heat, tingling or redness and swelling, thereby improving user comfort.

[0074] Specifically, each time the light source flashes, the capacitor needs to discharge the light source, consuming the electrical energy stored in the capacitor. After discharge, the amount of electricity in the capacitor will decrease. In order to ensure that the energy or duration of the next discharge after discharge can meet the preset requirements, the capacitor needs to be recharged to ensure that there is enough energy for the next flash of the light source. Therefore, during the interval between two flashes of the light source, the charging module can be controlled to charge the capacitor to replenish energy for the next flash of the light source. Charging and discharging according to the pre-set charging and discharging logic can ensure that the capacitor will not be charged and discharged at the same time, and can also ensure that the capacitor can be replenished before the next flash, thereby maintaining the continuous operation and efficiency of the pulse light device. In this way, by immediately charging the capacitor after each discharge, the energy released by the pulse light device within the flash window can be increased, thereby improving the effect on the skin.

[0075] In some embodiments, the above steps can form a basic operating cycle of the pulse light device: discharge-charge-discharge-charge. This cycle can ensure that the pulse light device can continuously and stably output pulse light of a predetermined intensity and frequency throughout the entire process.

[0076] It should be noted that since the energy in the capacitor is not completely exhausted after each discharge, the charging module does not need to charge the capacitor from scratch, which can shorten the charging time and improve the efficiency of the entire process. At the same time, when charging the capacitor, it is only necessary to charge the capacitor according to the preset charging logic. The capacitor does not need to be fully charged, but it needs to meet the energy required for the next flash of the light source. This can ensure that the capacitor will not be overcharged, and can also ensure that the capacitor can be sufficiently charged before the next flash, thereby maintaining the continuous operation of the pulse light device.

[0077] The length of the interval can be adjusted according to the specific application of the pulse light device and the flash requirements of the light source to ensure that the light intensity and duration meet the predetermined requirements.

[0078] It can be seen that compared to releasing the electrical energy in the capacitor once, the present application controls the light source to flash N times within a flash window, where N is an integer greater than or equal to 3, so that the pulse light device releases the energy in the capacitor through at least three flashes, dividing the single discharge process of the capacitor into multiple charging and discharging processes. The energy of each discharge is controlled in a segmented manner to avoid the high energy impact caused by a single discharge, so that the pulse light device can disperse the energy output without sacrificing the required intensity of the pulse light, and treat the skin in a gentler and more controllable manner. This can not only reduce the pain and other discomfort of the user during use, but also reduce the impact on sensitive components in the device and extend the service life of the device. Moreover, charging the capacitor immediately after each discharge can increase the energy released by the pulse light device within the flash window, thereby improving the effect on the skin.

[0079] It can be understood that, in a specific embodiment, the time interval between each flash can be different or the same.

[0080] Through research on the charging and discharging principles of capacitors and the characteristics of energy absorption by the skin, it was found that each flash window can perform multi-stage flashes by controlling the light source, and make the interval between each two adjacent stages longer, that is, between 0.4 seconds and 0.95 seconds (optionally between 0.5-1.8 seconds), so that the capacitor can be charged more and the capacitor's power can be restored to a certain level to meet the discharge needs of the subsequent stage, while also avoiding interruptions caused by long charging time.

[0081] The following example illustrates the phased flashing.

[0082] In some embodiments, see Figure 2 , Figure 2 This is a flow chart of a control method for a pulsed light device disclosed in an embodiment of the present application. Step 201 may include:

[0083] Step 2011: Control the light source to flash M times, where M is an integer greater than or equal to 1.

[0084] In the first stage, the light source can be controlled to flash M times. This initial flash lays the foundation for the second stage. For example, in hair removal, these M flashes can soften hair follicles and perform preliminary hair removal, while also preparing for subsequent hair removal. Furthermore, by setting different M values, the initial flashes can be controlled to suit different user needs.

[0085] It can be understood that when M is greater than 1, the charging module can be controlled to charge the capacitor within the interval between two adjacent flashes in the M flashes.

[0086] Step 2012: Control the charging module to charge the capacitor for a preset time, where the preset time is greater than or equal to 0.4 seconds and less than or equal to 0.95 seconds.

[0087] After the first M flashes, the charging module can be controlled to charge the capacitor for a period of time ranging from 0.4 seconds to 0.95 seconds. This charging time allows the capacitor to be fully charged, restoring its charge to a level sufficient to meet the discharge requirements of the subsequent stage, while also avoiding interruptions caused by prolonged charging time.

[0088] Step 2013: Control the light source to flash K times, where K is an integer greater than or equal to 1, and N is greater than or equal to M+K.

[0089] After the capacitor is fully charged, the light source can be controlled to flash a second time, i.e., K times, to further enhance the treatment effect. For example, in hair removal, the first M flashes can soften the hair follicles and prepare them for subsequent hair removal. On this basis, the second K flashes can penetrate deeper into the hair follicles, effectively destroying their structure and inhibiting or even permanently preventing hair regrowth. At this stage, the number of flashes can also be controlled to suit different user needs.

[0090] Exemplarily, the preset duration may be 0.4 seconds, 0.5 seconds, 0.55 seconds, 0.65 seconds, 0.75 seconds, 0.85 seconds, or 0.95 seconds. It should be understood that the above is an exemplary description of the preset duration and does not limit the specific value of the preset duration. For example, the preset time may also be 0.45 seconds.

[0091] When the preset duration is 0.4 seconds, the charging module charges the capacitor in the shortest time, which can maintain a fast flash rhythm while ensuring that the capacitor has enough energy for effective flashing. This is suitable for application scenarios that require rapid and continuous flashing.

[0092] With a preset duration of 0.5 seconds, the charging module provides a relatively short capacitor charging time, making it suitable for applications requiring a faster flash rhythm. For example, it can be used for light to moderate hair removal treatments, ensuring that the capacitor receives sufficient energy for each effective flash while maintaining efficiency.

[0093] With the preset duration of 0.55 seconds, the charging time is slightly increased, allowing the capacitor to receive more energy between the first and second stages of flashes. For example, it is suitable for medium-intensity skin treatments such as moderate hair removal, skin refinement, and improvement of minor pigmentation problems.

[0094] With a preset duration of 0.65 seconds, more charging time is provided for the capacitor, allowing it to release more energy during the second stage of discharge. For example, it is suitable for deep skin treatments, including deep hair removal, significant skin quality improvement, and collagen reconstruction.

[0095] With a preset duration of 0.75 seconds, the light source can be made to flash high energy for deep and intense application, such as hair removal for high-density hair.

[0096] With a preset duration of 0.85 seconds, the capacitor can obtain a higher amount of energy reserve before the second stage of flash, providing sufficient preparation time for some special high-intensity treatments, such as deep skin reshaping, removing deep skin scars or large-area deep hair removal.

[0097] Under the preset duration of 0.95 seconds, the charging module charges the capacitor for the longest time, which can achieve high energy output in the second stage to support strong and deep processing effects.

[0098] In some embodiments, the preset duration is greater than or equal to 0.5 seconds and less than or equal to 0.7 seconds.

[0099] After controlling the light source to flash M times, the charging module can be controlled to charge the capacitor for a preset time, which can be greater than or equal to 0.5 seconds and less than or equal to 0.7 seconds. Thereafter, the light source can be controlled to flash K times.

[0100] In some application scenarios, two-stage flashing can be performed, in which case N equals M+K. An example is given below.

[0101] For example, in order to perform hair removal, N(4)=M(2)+K(2), and the preset duration is 0.6 seconds. The pulse light device can control the light source to emit 2 flashes in the first stage to pre-treat the target hair follicles, heat the hair follicle area, increase the temperature of the area, and make the hair follicle structure slightly fragile, in preparation for the next hair removal. After completing the 2 flashes, the charging module is controlled to charge the capacitor for 0.6 seconds to ensure that the capacitor can obtain sufficient energy replenishment in a short time to prepare for the second stage of hair removal. Based on the pre-treatment in the first stage, the light source can be controlled to emit 2 more flashes in the second stage to further damage the hair follicles. By utilizing the accumulated heat effect of the first two flashes, the latter two flashes can more effectively penetrate the hair follicles, destroy their growth ability, and thus inhibit or prevent hair regrowth.

[0102] Exemplarily, in order to perform hair removal treatment, N(5)=M(3)+K(2), the preset duration is 0.5 seconds, that is, the pulse light device can control the light source to accurately emit 3 flashes in this stage in the first stage, pre-treat the target hair follicles, heat the hair follicle area, increase the temperature of the area, and make the hair follicle structure slightly fragile, in preparation for the next hair removal. After completing the 3 flashes, the capacitor is controlled to be charged for 0.5 seconds to ensure that the capacitor is adequately replenished with energy in a short time, in preparation for the next stage of flashes. Based on the pretreatment in the first stage, the light source can be controlled to emit 2 more flashes in the second stage to cause deeper damage to the hair follicles. By utilizing the accumulated heat effect of the first two flashes, the last two flashes can more effectively penetrate the hair follicles, destroy their growth ability, and thus inhibit or prevent hair regrowth.

[0103] Optionally, the second stage of the flash may also use a higher energy setting compared to the first stage to ensure that the energy can penetrate deep into the base of the hair follicles and effectively destroy the hair follicle structure.

[0104] In some other application scenarios, N is greater than M+K.

[0105] That is, within a flash window, multiple flashes can occur, with the number of stages being greater than or equal to two, the time interval between adjacent stages being greater than or equal to 0.4 seconds and less than or equal to 0.95 seconds, and charging and energy replenishment occurring within this time interval. For example, after step 2013, the process further includes: step 2014, controlling the charging module to charge the capacitor for a preset time duration, the preset time duration being greater than or equal to 0.4 seconds and less than or equal to 0.95 seconds; and step 2013, controlling the light source to flash L times, where L is an integer greater than or equal to 1, and N is greater than or equal to M+K+L.

[0106] For example, in order to perform hair removal treatment, N(6)=M(2)+K(2)+L(2), the preset duration is 0.7 seconds, and L represents the number of flashes in the third stage after the first and second stage flashes in the flash window, that is, the pulse light device controls the light source to emit 2 flashes in the first stage, and after completing the 2 flashes, controls the capacitor to be charged for 0.7 seconds, and then controls the light source to emit 2 more flashes in the second stage based on the pretreatment in the first stage, and then controls the capacitor to be charged for 0.7 seconds, and then controls the light source to emit 2 more flashes, so that the total number of flashes reaches 6 times. In this way, by treating the skin in batches of 3 stages, the additional number of flashes L is used to enhance the photothermal effect and enhance the treatment of the target hair follicles. By utilizing the thermal effect accumulated by the flashes in the first two stages, the additional two flashes can more effectively penetrate the hair follicles, destroy their growth ability, and thus inhibit or prevent the regrowth of hair.

[0107] In the above embodiment of the staged flash control, the values ​​of M, K, the preset duration and / or L are described in detail below.

[0108] In some embodiments, M is greater than 1.

[0109] Specifically, when M is greater than 1, the time interval between adjacent flashes in the M flashes can be greater than or equal to 0.06 seconds and less than or equal to 0.4 seconds.

[0110] When M is greater than 1, that is, when the light source is controlled to flash multiple times in the first stage, the time interval between adjacent flashes can be greater than or equal to 0.06 seconds and less than or equal to 0.4 seconds, such as 0.06 seconds, 0.08 seconds, 0.1 seconds, 0.12 seconds, 0.15 seconds, 0.17 seconds, 0.2 seconds, 0.24 seconds, 0.26 seconds, 0.3 seconds, 0.34 seconds, 0.38 seconds, or 0.4 seconds. For example, when M is 2 times, the light source will be controlled to flash twice, and the time interval between each flash is precisely controlled to be between 0.06 seconds and 0.4 seconds.

[0111] In this way, the skin can be flashed multiple times in the first stage, and the interval between two adjacent flashes in this stage can be controlled between 0.06 seconds and 0.4 seconds. On the one hand, it can avoid skin stinging, on the other hand, it can replenish more power and ensure a better energy accumulation effect.

[0112] In some embodiments, when M is greater than 1, the time interval between adjacent flashes in the M flashes is greater than or equal to 0.1 seconds and less than or equal to 0.3 seconds, so as to improve operability and ensure energy accumulation effect.

[0113] In some embodiments, the preset duration is greater than or equal to 0.5 seconds and less than or equal to 0.8 seconds.

[0114] After controlling the light source to flash M times, the charging module can be controlled to charge the capacitor for a preset time, which can be greater than or equal to 0.5 seconds and less than or equal to 0.8 seconds. Thereafter, the light source can be controlled to flash K times.

[0115] In some embodiments, when K is greater than 1, the time interval between adjacent flashes in K flashes is greater than or equal to 0.06 seconds and less than or equal to 0.4 seconds, such as 0.06 seconds, 0.08 seconds, 0.1 seconds, 0.12 seconds, 0.15 seconds, 0.17 seconds, 0.2 seconds, 0.24 seconds, 0.26 seconds, 0.3 seconds, 0.34 seconds, 0.38 seconds, or 0.4 seconds.

[0116] Similarly, when K is greater than 1, that is, when the light source is controlled to flash multiple times in the second stage, the time interval between adjacent flashes can be greater than or equal to 0.06 seconds and less than or equal to 0.4 seconds, such as 0.06 seconds, 0.08 seconds, 0.1 seconds, 0.12 seconds, 0.15 seconds, 0.17 seconds, 0.2 seconds, 0.24 seconds, 0.26 seconds, 0.3 seconds, 0.34 seconds, 0.38 seconds, or 0.4 seconds. For example, when K is 3 times, the light source will be controlled to flash twice, and the time interval between each flash is precisely controlled to be between 0.06 seconds and 0.4 seconds.

[0117] In some embodiments, when K is greater than 1, the time interval between adjacent flashes in the K flashes is greater than or equal to 0.1 seconds and less than or equal to 0.3 seconds, so as to improve operability and ensure energy accumulation effect.

[0118] It should be noted that different implementations can be combined and adjusted based on specific user needs and goals. For example, the values ​​of M, K, and N, as well as the corresponding time interval and preset charging duration, can be flexibly adjusted based on the size of the target area, depth of application, and / or skin type, thereby increasing the flexibility and applicability of the pulsed light device.

[0119] In one application scenario, M is 3, the interval between M flashes is 0.08 seconds, K is 4, the interval between K flashes is 0.35 seconds, and the preset duration is 0.6 seconds. That is, the light source is controlled to flash three times, and the interval between each flash is precisely controlled to 0.08 seconds, which can quickly and continuously provide initial thermal effects on the target area. After completing the three flashes, the charging module immediately starts and charges the capacitor for 0.6 seconds, allowing the capacitor to quickly recover energy and provide the necessary power for the next stage of K flashes. After the capacitor is charged, the light source is controlled to flash four times, and the interval between each flash is adjusted to 0.35 seconds.

[0120] By refining the time intervals between adjacent flashes in M ​​and K, we can avoid rapid heat accumulation caused by overly short intervals while maintaining a sufficient thermal effect. For example, if M is 2, the time interval between M flashes is 0.2 seconds; if K is 3, the time interval between K flashes is 0.2 seconds, with a preset duration of 0.6 seconds. Controlling the light source to initially emit two flashes, with a 0.2-second interval between them, can prevent heat accumulation caused by overly short intervals, reduce potential damage to the skin, and ensure that sufficient thermal effect begins to act on the target area. The charging module is then controlled to charge the capacitor for 0.6 seconds to provide the energy required for the next three flashes of the light source. After the capacitor is charged, the light source is controlled to emit another three flashes, with a 0.2-second interval between them. This can further deepen the treatment of the target area to enhance the effect. This embodiment achieves precise management, improving the user experience and device safety.

[0121] The following describes the flash duration of each flash of the light source.

[0122] In some embodiments, the flash duration of each flash of the light source is greater than or equal to 0.3 milliseconds and less than or equal to 10 milliseconds, such as 0.3 milliseconds, 0.4 milliseconds, 0.65 milliseconds, 0.8 milliseconds, 0.95 milliseconds, 1 millisecond, 1.5 milliseconds, 2 milliseconds, 2.5 milliseconds, 3 milliseconds, 3.5 milliseconds, 4 milliseconds, 4.5 milliseconds, 5 milliseconds, 5.5 milliseconds, 6 milliseconds, 6.5 milliseconds, 7 milliseconds, 7.5 milliseconds, 8 milliseconds, 8.5 milliseconds, 9 milliseconds, 9.5 milliseconds or 10 milliseconds.

[0123] The flash duration of each flash of the light source is 0.3 milliseconds to 10 milliseconds, which can provide great flexibility for pulsed light devices and allow pulsed light devices to accurately treat different types of skin and hair. Shorter flash durations (close to 0.3 milliseconds) can be suitable for treatments that require fine control, such as hair removal on sensitive skin. Using a shorter flash duration can accurately target the hair follicles for thermal effects, which can reduce unnecessary heating of the deep skin and avoid overheating of the target tissue. Longer flash durations (close to 10 milliseconds) can be suitable for deep hair removal, such as hair removal for coarse hair. Coarse hair can absorb more energy, and a longer flash duration can ensure that enough heat is transferred deep into the hair follicles, thereby effectively destroying the hair follicle structure and achieving hair removal effects. A longer flash duration can provide more thermal effects to achieve better results.

[0124] Moreover, by setting the flash duration of the light source between 0.3 milliseconds and 10 milliseconds, on the one hand, it can avoid a single flash duration that is too long and brings high energy impact, and on the other hand, it can also avoid a single flash duration that is too short and cannot play a role.

[0125] In some embodiments, the flash duration of each flash of the light source is greater than or equal to 0.5 milliseconds and less than or equal to 4 milliseconds, such as 0.5 milliseconds, 0.6 milliseconds, 0.65 milliseconds, 0.8 milliseconds, 0.95 milliseconds, 1 millisecond, 1.5 milliseconds, 2 milliseconds, 2.5 milliseconds, 3 milliseconds, 3.5 milliseconds or 4 milliseconds.

[0126] By setting the flash duration of the light source between 0.5 milliseconds and 4 milliseconds, we can further prevent a single flash from being too long, thus preventing prolonged exposure of the skin to high energy. This can reduce the risk of skin damage caused by heat accumulation, which is particularly important for sensitive skin and improves safety. Furthermore, it ensures that a single flash can generate sufficient thermal effect to achieve better results.

[0127] In some embodiments, in step 2011, when M is 2, the durations of the two flashes in the M flashes are equal, or the duration of the first flash in the M flashes is shorter than the duration of the second flash.

[0128] When M is 2, that is, when the light source is controlled to flash twice in the first stage, the duration of each flash can be equal. This setting can be used to treat a target area that requires uniform treatment. For example, in hair removal, if the hair density in the target area is relatively uniform, using two flashes of equal duration can ensure that each hair follicle receives the same amount of heat energy, thereby achieving a uniform hair removal effect.

[0129] When M is 2, the first of the two flashes can be shorter than the second. This progressive flash duration setting can gradually intensify the effect. For example, after an initial gentle warming effect, a second, longer flash can penetrate deeper into the hair follicles or skin, increasing the intensity. This is useful when surface treatment is needed first and then increasing depth.

[0130] In some embodiments, in step 2013, when K is 2, the durations of the two flashes in the K flashes are equal, or the duration of the first flash in the K flashes is shorter than the duration of the second flash.

[0131] When K is 2, that is, when the light source is controlled to flash twice in the second stage, the duration of each flash can be equal. This setting can be used to treat a target area that requires uniform treatment. For example, in hair removal, if the hair density in the target area is relatively uniform, using two flashes of equal duration can ensure that each hair follicle receives the same amount of heat energy, thereby achieving a uniform hair removal effect.

[0132] When K is set to 2, the first of the two flashes can be shorter than the second. This progressive flash duration setting can gradually intensify the effect. For example, after an initial gentle warming effect, a second, longer flash can penetrate deeper into the hair follicles or skin, increasing the intensity. This is useful when you need to treat the surface first and then increase the depth.

[0133] Through this flexible flash duration, pulse light devices can meet the needs of different users and optimize the user experience.

[0134] In some embodiments, in step 2013, when K is 2, the duration of the first flash in the K flashes is less than the duration of the second flash, and in the K flashes, the duration of the first flash is greater than or equal to 0.3 milliseconds and less than or equal to 0.7 milliseconds, and the duration of the second flash is greater than or equal to 1.2 milliseconds and less than or equal to 3 milliseconds.

[0135] When K is 2, that is, in the second stage, the light source is controlled to flash twice.

[0136] By controlling the first flash duration of the light source to be greater than or equal to 0.3 milliseconds and less than or equal to 0.7 milliseconds, a preliminary thermal effect can be precisely applied to the target area through a shorter flash duration to soften the target area.

[0137] The light source is controlled to have a second flash duration greater than or equal to 1.2 milliseconds and less than or equal to 3 milliseconds, that is, the second flash duration is significantly longer than the first flash duration, so that the longer flash duration can act deeply on the target tissue and the accumulated heat can achieve a better treatment effect.

[0138] The first short-duration flash combined with the second long-duration flash can not only optimize the effect, but also reduce potential damage to the skin through gradual heating, and achieve better treatment effects through progressive energy accumulation.

[0139] In some embodiments, the energy emitted by the light source flash is positively correlated with the capacitor voltage. The capacitor, through its stored electrical energy, provides the energy required for the light source flash. A higher capacitor voltage provides more electrical energy to the light source, thereby generating stronger or more pulsed light. Increasing the capacitor voltage can enhance the energy of the light source flash, thereby making the photothermal effect during the treatment process more significant.

[0140] In some embodiments, the pulsed light device may be a hair removal device or a skin rejuvenation device.

[0141] In the case of a pulsed light device used as an epilator, it can use specific flash duration settings to effectively remove hair of varying depths and thicknesses. A shorter flash duration (approximately 0.3 milliseconds) is suitable for fine hair, while a longer flash duration (approximately 10 milliseconds) is suitable for coarser hair, ensuring that the light penetrates deep into the hair follicles and fully disrupts their structure.

[0142] In the case of a skin rejuvenation device, the pulsed light device can precisely adjust the flash duration to achieve skin rejuvenation. A shorter flash duration (approximately 0.3 milliseconds) is suitable for subtle improvements to the surface skin, such as improving skin texture, while a longer flash duration (approximately 10 milliseconds) can penetrate deeper into the skin, achieving a deep rejuvenation effect.

[0143] See also Figure 3 , Figure 3 This is a schematic diagram of the structure of another pulse light device disclosed in the embodiment of this application. Figure 3 As shown, the pulsed light device may further include a gear setting module 40. The gear setting module 40 may be pre-set with multiple gears, each corresponding to a different energy output. By providing multiple gears, the pulsed light device can meet the needs of different skin types, target area sizes, hair densities, or other factors.

[0144] The control method may further comprise the following steps:

[0145] In response to a user selecting a target gear among the plurality of gears through the gear setting module, a target gear is determined.

[0146] In one case, the gear setting module can be a physical control panel with physical buttons or knobs, and the user can select or rotate these control elements to determine the target gear.

[0147] In another case, the gear setting module can be a touch screen panel, which is provided with an interactive interface. The interactive interface displays different gear options. The user can directly select the required gear on the interactive interface and then determine the target gear.

[0148] In another case, the gear setting module can be an application paired with the pulse light device. Users can pair and communicate with the pulse light device through Bluetooth, Wi-Fi or other wireless communication technologies on devices (smartphones, tablets, etc.) on which the application is installed. On the application, users can browse different gear options, select the desired gear, and then determine the target gear. This method not only enables remote control, but also assists users in making more appropriate choices through additional information provided by the application (such as detailed descriptions of each gear, applicable skin types, expected effects, and safety tips, etc.). In addition, the application can also store user usage history and preference settings.

[0149] Controlling the light source to flash N times within a flash window may include controlling the light source to flash N times within the flash window according to a target gear, wherein the multiple gears correspond to different one or more of N, M, K, a preset duration, a flash duration of each flash of the light source, and a time interval between two adjacent flashes. Energy emitted by the flash of the light source is positively correlated with any one of N, M, K, the preset duration, the flash duration of each flash of the light source, and the time interval between two adjacent flashes.

[0150] In some embodiments, the gear setting module is provided with a high gear and a low gear.

[0151] The N value in the high gear is greater than the N value in the low gear, that is, the number of flashes in the high gear is greater than the number of flashes in the low gear, which can cover a wider target area or achieve better processing effects. And / or,

[0152] The M value in the high gear is greater than the M value in the low gear, that is, the number of flashes in the first stage in the high gear is greater than the number of flashes in the first stage in the low gear, which can more effectively preheat the target area and lay the foundation for subsequent processing. And / or,

[0153] The K value in the high gear is greater than the K value in the low gear, that is, the number of flashes in the second stage in the high gear is greater than the number of flashes in the second stage in the low gear, which can enhance the treatment effect on the target area and better utilize the accumulated thermal effect. And / or,

[0154] The preset duration in the high gear is greater than the preset duration in the low gear, that is, the preset duration in the high gear is greater than the preset duration in the low gear, which allows the capacitor to have more time to charge, thereby providing higher energy for the next flash. And / or,

[0155] The flash duration of each flash of the light source in the high gear is longer than the flash duration of each flash of the light source in the low gear, that is, the flash duration of each flash of the light source in the high gear is longer than the flash duration of each flash of the light source in the low gear. Extending the flash duration can provide a stronger thermal effect, which is suitable for deep treatment needs. And / or,

[0156] The interval between two adjacent flashes in the high gear is greater than the interval between two adjacent flashes in the low gear, that is, the interval between two adjacent flashes in the high gear is greater than the interval between two adjacent flashes in the low gear. Increasing the interval between two adjacent flashes can reduce the risk of overheating, especially when the energy of each flash of the light source is large.

[0157] In order to better understand the embodiments of the present application, the voltage change of the capacitor in the embodiments of the present application is described below.

[0158] For example, let's use a two-stage flash as an example. Assume the capacitor is fully charged in the initial stage, with a maximum voltage of 320V. As the light source flashes M times in the first stage, each flash consumes a certain amount of the capacitor's charge, causing the capacitor's voltage to gradually decrease. Assume that at the end of the first stage, the capacitor's voltage has dropped to 290V. The charging module is controlled to charge the capacitor for a preset duration, which allows the capacitor's voltage to fully or partially recover. Assume that after charging, the capacitor's voltage recovers from 300V to 310V. The light source is then controlled to flash K times in the second stage. These K flashes further consume the capacitor's charge, causing the voltage to drop again. Assume that at the end of the second stage, the capacitor's voltage has dropped from 310V to 190V.

[0159] When M is 2, K is 2, and the preset duration is 0.6, assuming that the capacitor is fully charged and the initial voltage is 320V, the light source is controlled to perform the first flash of the first stage, and the capacitor voltage drops from 320V to 305V, followed by supplementary charging to restore it to 307V. Then, the second flash of the first stage is performed, and the capacitor voltage further drops from 307V to 290V. At this point, the two flashes of the first stage are completed. Afterwards, the charging module is controlled to charge the capacitor for a duration of 0.6 seconds, so that the capacitor voltage recovers from 290V to 310V. Then, the first flash of the second stage (the third flash) is performed, and the capacitor voltage drops from 310V to 295V, followed by supplementary charging to restore it to 297V. Then, the second flash of the second stage (the fourth flash) is performed, and the capacitor voltage further drops from 297V to 190V. At this point, the two flashes of the second stage are completed.

[0160] See also Figure 4 , Figure 4 This is a schematic diagram of the structure of a charging module disclosed in an embodiment of the present application. Figure 4As shown, the charging module 10 may include a power input circuit 101 and a voltage acquisition circuit 102 , and the power input circuit 101 and the voltage acquisition circuit 102 are respectively connected to capacitors.

[0161] Controlling the charging module to charge the capacitor may include the following steps:

[0162] The control power input circuit charges the capacitor.

[0163] The power input circuit can provide charging power to the capacitor. The power input circuit can be a voltage conversion device or a power adapter. By connecting to an external power source, the power input circuit performs voltage conversion and outputs a predetermined power supply to the capacitor. For example, the power input circuit connects to an external AC or DC power source, performs voltage conversion, and outputs 24V DC power to the capacitor to provide DC charging power to the capacitor.

[0164] In some embodiments, the voltage acquisition circuit may be controlled to acquire the voltage of the capacitor, and when the voltage acquired by the voltage acquisition circuit is greater than a preset voltage, the power input circuit may be controlled to stop charging the capacitor.

[0165] The voltage acquisition circuit monitors the capacitor's real-time voltage and feeds the collected voltage value back to the pulse light device, which has a preset voltage. When the capacitor voltage reaches the preset voltage, it is considered fully charged. Therefore, if the voltage collected by the voltage acquisition circuit exceeds the preset voltage, the power input circuit is controlled to stop charging the capacitor to prevent overcharging and ensure the safety of the capacitor and the pulse light device.

[0166] In some embodiments, the charging of the capacitor may be stopped after the power input circuit is controlled to charge the capacitor for a preset time.

[0167] The pulse light device can charge the capacitor according to the preset charging time. Even if the capacitor voltage does not reach the safety threshold, it will not continue to charge indefinitely, which can prevent overcharging due to abnormalities in the device or capacitor.

[0168] See also Figure 5 , Figure 5 This is a schematic diagram of the structure of another charging module disclosed in the embodiment of this application. Figure 5 As shown, the charging module 10 may further include a voltage stabilizing circuit 103 and a power conversion circuit 104 .

[0169] The voltage regulator circuit 103 is connected to the power input circuit 101. The voltage regulator circuit 103 is configured to convert the first supply voltage output by the power input circuit 101 into a second supply voltage and provide the second supply voltage to the controller. The second supply voltage may be lower than the first supply voltage. In some embodiments, the first supply voltage output by the power input circuit 101 may be, but is not limited to, 24V, and the second supply voltage may be, but is not limited to, 15V.

[0170] The power conversion circuit 104 is connected between the power input circuit 101 and the capacitor. The power conversion circuit 104 can convert the first supply voltage of the power input circuit 101 into a third supply voltage, and provide the third supply voltage to the capacitor to charge the capacitor. The third supply voltage can be greater than the first supply voltage.

[0171] See also Figure 6 , Figure 6 This is a structural diagram of another charging module disclosed in the embodiment of this application. Figure 6 As shown, the charging module 10 may further include a voltage stabilizing circuit 103 and a power conversion circuit 104 .

[0172] The voltage regulator circuit 103 is connected to the power input circuit 101, and the power conversion circuit 104 is connected between the voltage regulator circuit 103 and the capacitor. The power conversion circuit 104 can convert the second supply voltage output by the voltage regulator circuit 103 into a third supply voltage, and provide it to the capacitor to charge the capacitor. In some embodiments, the third supply voltage can be adjustable in a range of approximately 260V to 320V.

[0173] See also Figure 7 , Figure 7 This is a schematic diagram of the structure of a power input circuit disclosed in an embodiment of the present application. Figure 7 As shown, the power input circuit may include a power access unit J1, a voltage regulator diode D1, a first capacitor C1, a second capacitor C2, a third capacitor C3 and a first inductor L1.

[0174] The power access unit J1 is used to receive power from an external power source and output a first power supply voltage. The power access unit J1 is connected to the voltage stabilizing circuit 103 via the first inductor L1. In some embodiments, the power access unit J1 can be connected to an external AC power source or a DC power source and output the first power supply voltage to the voltage stabilizing circuit 103. In some embodiments, the voltage stabilizing circuit 103 can convert the first power supply voltage output by the power access unit J1 into a second power supply voltage and provide it to the controller. The voltage stabilizing diode D1 and the first capacitor C1 are arranged in parallel, with one end connected between the power access unit J1 and the first inductor L1 and the other end grounded. The second capacitor C2 and the third capacitor C3 are arranged in parallel, with one end connected between the first inductor L1 and the voltage stabilizing circuit 103 and the other end grounded. One end of the third capacitor C3 is also connected to the first power network V24D.

[0175] See also Figure 8 , Figure 8 This is a schematic diagram of the structure of a voltage acquisition circuit disclosed in an embodiment of the present application. Figure 8 As shown, the voltage acquisition circuit 102 includes a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fourth capacitor C4 and an acquisition terminal V400_ADC.

[0176] A first resistor R1, a second resistor R2, and a third resistor R3 are connected in series. The other end of the first resistor R1 is connected to the second power supply network V400V. The other end of the third resistor R3 is grounded. One end of a fourth resistor R4 is connected between the second resistor R2 and the third resistor R3. The other end of the fourth resistor R4 can be connected to a collection terminal V400_ADC. The collection terminal V400_ADC can be connected between the second resistor R2 and the third resistor R3 and can be used to collect the voltage divided between the second resistor R2 and the third resistor R3 to obtain a collected voltage. One end of a fourth capacitor C4 is connected to the fourth resistor R4, and the other end of the fourth capacitor C4 is grounded. Thus, the voltage collection circuit 102 can collect the divided voltage between the second resistor R2 and the third resistor R3 to obtain a collected voltage and feed it back to the controller.

[0177] See also Figure 9 , Figure 9 This is a schematic diagram of the structure of a power conversion circuit disclosed in an embodiment of the present application. Figure 9 As shown, the power conversion circuit may include a transformer T1 and an energy storage filter subcircuit 90. A first input terminal 1 of the transformer T1 is connected to a drive pin of the power control unit, and a second input terminal 2 of the transformer T1 is grounded. A first output terminal 3 of the transformer T1 is connected to the energy storage filter subcircuit 90, and a second output terminal 4 of the transformer T1 is connected to a capacitor.

[0178] In some embodiments, the energy storage filter sub-circuit 90 can be, but is not limited to, a capacitor group, including multiple capacitors arranged in parallel. The energy storage filter sub-circuit 90 can be used for energy storage, one end of the multiple capacitors arranged in parallel can be connected to the first power supply network V24D, and the other end of the multiple capacitors arranged in parallel is grounded.

[0179] The driving pin of the power control unit can output a driving signal to enable the transformer to convert the second supply voltage into a third supply voltage and output the third supply voltage to the capacitor to charge the capacitor. In some embodiments, the power control unit can be a chip with power control function.

[0180] See also Figure 10 , Figure 10 This is a schematic diagram of the structure of a voltage stabilizing circuit disclosed in an embodiment of the present application. Figure 10 As shown, the voltage stabilization circuit may include a voltage stabilization unit U1, a sixth capacitor C6, and a seventh capacitor C7. One end of the voltage stabilization unit U1 is connected to the power input module 10, and the other end of the voltage stabilization unit U1 is connected to the power pin VCC of the power control unit 42 of the first control submodule 42. One end of the sixth capacitor C6 is connected between the voltage stabilization unit U1 and the power input module 10, and the other end of the sixth capacitor C6 is grounded. One end of the seventh capacitor C7 is connected between the voltage stabilization unit U1 and the power pin VCC of the power control unit 42, and the other end of the seventh capacitor C7 is grounded.

[0181] In some embodiments, the voltage stabilizing unit U1 may be, but is not limited to, a direct current (DC-DC) converter or a low dropout regulator (LDO).

[0182] See also Figure 11 , Figure 11 This is a schematic diagram of the structure of another pulse light device disclosed in the embodiment of this application. Figure 11 As shown, the pulse light device may further include a first switch unit 50. A first end of the first switch unit 50 is connected to the light source, and a second end thereof is grounded.

[0183] Controlling the light source to flash N times within a flash window may include:

[0184] The first end and the second end of the first switch unit are controlled to be conductive, so that the capacitor discharges the light source, thereby causing the light source to flash.

[0185] A conduction instruction can be sent to the first switch unit to control the first end and the second end of the first switch unit to be conductive. The capacitor can form a loop with the ground through the first switch unit, so that the circuit is closed. The closed circuit allows the electrical energy stored in the capacitor to flow to the light source, providing the necessary energy for the light source, so that the light source flashes.

[0186] In some embodiments, the pulse light device may also include a physical button (not shown in the figure), which can detect user operation to trigger the flash of the light source. The controller can generate and output an enable signal to the discharge circuit in response to the user operation, so that the discharge circuit can control the flash of the light source in response to the user operation.

[0187] In some embodiments, the pulsed light device may further include a voltage conversion circuit, and the capacitor may be connected to the light source via the voltage conversion circuit. The capacitor may also be connected to the first switch unit via the voltage conversion circuit. The capacitor may be used to store and release electrical energy, and when the capacitor releases electrical energy, it may be used to provide operating power for the light source. The first switch unit may be used to turn on the voltage conversion circuit in response to a received enable signal. In some embodiments, the first switch unit may be controlled by the enable signal to switch between different states, such as an on state or an off state, thereby controlling the on or off state of the voltage conversion circuit.

[0188] See also Figure 12 , Figure 12 This is a schematic diagram of the structure of a voltage conversion circuit disclosed in an embodiment of the present application. Figure 12 As shown, the voltage conversion circuit may include a storage unit 902 and a transformer T2.

[0189] Storage unit 902 is connected to a capacitor and can be used to obtain a first operating voltage from the capacitor to store electrical energy. Transformer T2 is connected between storage unit 902 and the light source and can be used to obtain the first operating voltage from storage unit 902, convert the first operating voltage to a second operating voltage, and output the second operating voltage to the light source to cause the light source to flash. In some embodiments, storage unit 902 obtains electrical energy from the capacitor and temporarily stores it. When storage unit 902 releases electrical energy to transformer T2, it also outputs electrical energy at the first operating voltage.

[0190] The storage unit 902 may include an eighth capacitor C8 , a ninth capacitor C9 , a sixth resistor R6 , and a seventh resistor R7 .

[0191] The sixth resistor R6 and the eighth capacitor C8 are connected between the capacitor and the input terminal of the transformer T2, and the seventh resistor R7 and the ninth capacitor C9 are connected between the capacitor and the input terminal of the transformer T2, and the circuit connecting the seventh resistor R7 and the ninth capacitor C9 in series is arranged in parallel with the circuit connecting the sixth resistor R6 and the eighth capacitor C8 in series. The eighth capacitor C8 and the ninth capacitor C9 are used to obtain the first operating voltage output by the capacitor to store electrical energy. In some embodiments, one end of the sixth resistor R6 and the seventh resistor R7 can be connected to the first power supply network V400V, and the capacitor is also connected to the first power supply network V400V, so that one end of the sixth resistor R6 and the seventh resistor R7 can be connected to the capacitor through the first power supply network V400V.

[0192] The transformer T2 has an input terminal, an output terminal and a ground terminal. The output terminal of the transformer is connected to the light source, and the ground terminal of the transformer is grounded.

[0193] The first switching unit may include but is not limited to an insulated-gate bipolar transistor (IGBT).

[0194] When the first switching unit is an IGBT, the IGBT may include a control terminal, a first terminal, and a second terminal. The following description uses IGBT Q1 as an example. The control terminal of IGBT Q1 is connected to a drive circuit and can receive an enable signal through the drive circuit. The first terminal of IGBT Q1 is connected to the voltage conversion circuit, and the second terminal of IGBT Q1 is grounded. When the control terminal of IGBT Q1 receives the enable signal, the first terminal and the second terminal of IGBT Q1 are conductive.

[0195] Specifically, the IGBT Q1 can be configured as follows: when the control end of the IGBT Q1 receives an enable signal, the IGBT is turned on, so that the eighth capacitor C8 and the ninth capacitor C9 output the stored electrical energy to the input end of the transformer T2, and the transformer T2 converts the first operating voltage to the second operating voltage, and outputs the second operating voltage to the light source through the output end, so that the light source flashes.

[0196] See also Figure 13 , Figure 13 Schematic diagram of another pulse light device disclosed in an embodiment of the present application. The pulse light device may further include a driving circuit 60 connected to the first switch unit 50 .

[0197] The driving circuit can receive an enable signal sent by the controller and control the on and off of the first switch unit.

[0198] See also Figure 14 , Figure 14 This is a schematic diagram of the structure of a driving circuit disclosed in an embodiment of the present application. Figure 14 As shown, the driving circuit may include a signal receiving terminal 922 , a third switch unit 924 and a fourth switch unit 926 .

[0199] The signal receiving terminal 922 can receive an enable signal. The third switch unit 924 is connected between the signal receiving terminal 922 and the fourth switch unit 926. The fourth switch unit 926 is connected between the third switch unit 924 and the first switch unit. When the signal receiving terminal 922 receives the enable signal, the third switch unit 924 is turned on, and the fourth switch unit 926 is then turned on, thereby controlling the first switch unit to turn on.

[0200] The third switch unit 924 may include a second switch Q2, a ninth resistor R9, and a tenth resistor R10. The controlled terminal of the second switch Q2 is connected to the signal receiving terminal 922. The first terminal of the second switch Q2 is grounded. The second terminal of the second switch Q2 is connected to the fourth switch unit 926 via the tenth resistor R10. The ninth resistor R9 is connected between the controlled terminal and the first terminal of the second switch Q2. When the signal receiving terminal 922 receives an enable signal, the first terminal and the second terminal of the second switch Q2 are conductive. In some embodiments, the second switch Q2 may be, but is not limited to, a MOS transistor. The controlled terminal of the second switch Q2 may be a gate, the first terminal of the second switch Q2 may be a source, and the second terminal of the second switch Q2 may be a drain.

[0201] The fourth switch unit 926 may include a third switch Q3, an eleventh resistor R11, and a twelfth resistor R12. The controlled terminal of the third switch Q3 is connected to the second terminal of the second switch Q2 via the tenth resistor R10. The first terminal of the third switch Q3 is connected to the controlled terminal via the eleventh resistor R11. The second terminal of the third switch Q3 is connected to the first switch unit via the twelfth resistor R12. In some embodiments, the second terminal of the third switch Q3 is connected to the controlled terminal of the IGBT Q1 via the twelfth resistor R12. When the first terminal and the second terminal of the second switch Q2 are conductive, the first terminal and the second terminal of the third switch Q3 are conductive. In some embodiments, the third switch Q3 may be, but is not limited to, a MOS transistor. The controlled terminal of the third switch Q3 may be a gate, the first terminal of the third switch Q3 may be a source, and the second terminal of the third switch Q3 may be a drain.

[0202] like Figure 14 As shown, the driving circuit may further include a first filtering unit 927 and a first insurance unit 928 .

[0203] The first filter unit 927 is connected between the signal receiving terminal 922 and the third switch unit 924. The first filter unit 927 can filter the signal received by the signal receiving terminal 922, such as the enable signal. The first fuse unit 928 is connected between the fourth switch unit 926 and the first switch unit. The first fuse unit 928 can be used to protect the first switch unit, for example, to prevent the first switch unit from being impacted by overcurrent or overvoltage signals.

[0204] The first filtering unit 927 may include a fourth diode D4, an eleventh capacitor C11, and a thirteenth resistor R13. The thirteenth resistor R13 is connected between the signal receiving terminal 922 and the controlled terminal of the first switch Q2. One end of the fourth diode D4 is connected between the signal receiving terminal 922 and the thirteenth resistor R13, and the other end of the fourth diode D4 is grounded. An eleventh capacitor C11 is connected in parallel with the fourth diode D4. One end of the eleventh capacitor C11 is connected between the signal receiving terminal 922 and the thirteenth resistor R13, and the other end of the eleventh capacitor C11 is grounded. The other ends of the eleventh capacitor C11 and the fourth diode D4 may also be grounded via a sixteenth resistor R16.

[0205] The first fuse unit 928 includes a rectifier D5, a fourteenth resistor R14, a twelfth capacitor C12, and a fifteenth resistor R15. One end of the rectifier D5 is connected between the twelfth resistor R12 and the first switch unit. One end of the rectifier D5 is also grounded through the twelfth capacitor C12 and the fifteenth resistor R15. The other end of the rectifier D5 is grounded. In some embodiments, one end of the rectifier D5 is connected between the twelfth resistor R12 and the control terminal of the IGBT Q1. The fourteenth resistor R14 is connected in parallel with the rectifier D5. One end of the fourteenth resistor R14 is connected between the twelfth resistor R12 and the first switch unit. The other end of the fourteenth resistor R14 is grounded. In some embodiments, one end of the fourteenth resistor R14 is connected between the twelfth resistor R12 and the control terminal of the IGBT Q1.

[0206] See also Figure 15 , Figure 15 This is a structural diagram of another charging module disclosed in the embodiment of this application. Figure 15 As shown, the charging module may further include a second switch unit, and one end of the capacitor connected to the light source is grounded. The second switch unit may be connected between the power control unit and the transformer T1.

[0207] The second switch unit may include but is not limited to a metal oxide semiconductor (MOS) tube.

[0208] In the case where the second switch unit is a MOS transistor, the MOS transistor Q4 may include a control terminal, a first terminal, and a second terminal. The following description will be made by taking the second switch unit being the MOS transistor Q4 as an example.

[0209] The control terminal of the MOS transistor Q4 is connected to the drive pin of the power control unit via the fifth resistor R5. The first terminal of the MOS transistor Q4 is connected to the first input terminal of the transformer T1 and is grounded via the fifth capacitor C5. The second terminal of the MOS transistor Q4 is grounded via the resistor group 91. In some embodiments, the resistor group 91 may include multiple resistors connected in parallel, for example, two resistors connected in parallel.

[0210] Based on the above structure, the control method in this application may further include: receiving a lighting signal.

[0211] A charging signal and a discharging signal can be sent to the charging module and the first switch unit respectively according to the lighting signal, so as to respectively control the first switch unit and the second switch unit to be turned on and off in a preset manner, wherein the on and off states of the first switch unit and the second switch unit are opposite, so as to achieve: controlling the light source to flash N times within a flash window, N being an integer greater than or equal to 3, and when the light source flashes, controlling the capacitor to discharge the light source; and controlling the charging module to charge the capacitor in the interval between two adjacent flashes.

[0212] The first and second switch units have opposite on / off states. That is, when the first switch unit is on, the second switch unit is off. When the capacitor discharges into the light source, causing it to flash, the connection between the charging module and the capacitor is severed, preventing simultaneous charging. After the light source flashes, the first switch unit is turned off and the second switch unit is turned on, starting to charge the capacitor and providing energy for the next flash.

[0213] The on / off states of the first switch unit and the second switch unit can be controlled according to the lighting signal to achieve charge and discharge management of the pulse light device.

[0214] See also Figure 16 , Figure 16 This is a schematic diagram of the structure of another pulse light device disclosed in the embodiment of this application. Figure 16 As shown, the pulse light device may further include a control switch 70. The control switch is connected to the light source.

[0215] Controlling the capacitor to discharge the light source may include: controlling a control switch to be turned on, so as to cause the light source to flash.

[0216] Maintaining appropriate intervals between continuous flashes can prevent overheating, which can damage the device and cause unnecessary harm to the user's skin. To ensure adequate cooling time for the device and avoid overheating, the flashing of the light source can be controlled by controlling the on / off state of the control switch. For example, by controlling the on / off state of the control switch during the flash window, the operating state of the light source can be controlled, protecting the device from damage while ensuring user safety and comfort.

[0217] See also Figure 17 , Figure 17 This is a schematic diagram of the structure of another pulse light device disclosed in the embodiment of this application. Figure 17 As shown, the pulse light device may include a controller, a charging module 10 , a capacitor 20 , a light source 30 and a control switch 70 .

[0218] When controlling the charging module to charge the capacitor, the controller can issue a charging instruction to the charging module 10, so that the charging module 10, the capacitor 20, and the ground form a loop, thereby charging the capacitor 20. Specifically, the charging module 10 can charge the capacitor 20 through the power input circuit and monitor the voltage of the capacitor 20 through the voltage acquisition circuit. When the voltage of the capacitor 20 reaches a preset voltage or the charging time reaches a preset time (for example, 0.6 seconds), the controller can issue a stop charging instruction to the charging module 10.

[0219] When controlling the light source to flash, the controller may send a discharge instruction to the control switch 70 . When the control switch 70 receives the discharge instruction, it is turned on to cause the light source 30 to flash.

[0220] The above method and structure can realize that when the light source flashes, the capacitor is controlled to discharge the light source; and in the interval between two adjacent flashes, the charging module is controlled to charge the capacitor.

[0221] In one embodiment, the controller controls the charging module to charge the capacitor and controls the light source to flash by sending a pulse width modulation (PWM) signal to the charging module and the control switch.

[0222] The charging module can charge the capacitor based on a PWM signal. For example, the controller sends a PWM signal to the charging module. When the PWM signal is high, the charging module, the capacitor, and the ground form a loop, thereby charging the capacitor. When the PWM signal returns to a low level, the charging module stops charging the capacitor. The duration of the capacitor charging can be determined by the width of the PWM signal (the duration of the high level).

[0223] The control switch can control the light source to flash based on a PWM signal. For example, the controller sends a PWM signal to the control switch. When the PWM signal is high, the control switch turns on and the light source starts flashing. When the PWM signal returns to a low level, the light source stops flashing. The duration of each flash can be determined by the width of the PWM signal (the duration of the high level).

[0224] In another case, the controller has a built-in timer to ensure that all actions are carried out according to the preset actions.

[0225] When the control capacitor discharges the light source, the controller can send a working signal to the control switch according to the preset time of the timer, turning on the control switch and causing the light source to flash. After the working signal ends, the control switch is turned off and the light source stops flashing. For each flash, the duration of the flash can be determined by the duration of the working signal.

[0226] When controlling the charging module to charge the capacitor, the controller can send an operating signal to the charging module according to a preset timer, so that the charging module, the capacitor, and the ground form a loop, thereby charging the capacitor. After the operating signal ends, the charging module stops charging. The charging time of the capacitor can be determined by the duration of the operating signal.

[0227] It should be understood that the same or corresponding information in the above different embodiments can be referenced to each other.

[0228] In some embodiments, the pulse light device may include a charging module, a capacitor, and a light source. The capacitor is connected between the charging module and the light source. The charging module can charge the capacitor, and the capacitor can power the light source to cause the light source to flash. The control device may include:

[0229] The control module can control the light source to flash N times within a flash window, where N is an integer greater than or equal to 3. When the light source flashes, the control capacitor discharges the light source;

[0230] The control module can also control the charging module to charge the capacitor during the interval between two adjacent flashes.

[0231] In some embodiments, the control module can control the light source to flash M times, where M is an integer greater than or equal to 1; it can also control the charging module to charge the capacitor for a preset time, where the preset time is greater than or equal to 0.4 seconds and less than or equal to 0.95 seconds; it can also control the light source to flash K times, where K is an integer greater than or equal to 1, and N is greater than or equal to M+K.

[0232] In some embodiments, the pulse light device further includes a gear setting module, wherein the gear setting module is provided with a plurality of gears. The control device may further include:

[0233] The response module may determine the target gear position in response to a user's selection operation of the target gear position among the plurality of gear positions through the gear position setting module.

[0234] The control module can control the light source to flash N times within a flash window according to the target gear position.

[0235] One or more of N, M, K, preset duration, flash duration of each flash of the light source, and time interval between two adjacent flashes corresponding to the multiple gears are different.

[0236] In one case, the charging module includes a power input circuit and a voltage acquisition circuit, which are respectively connected to a capacitor. The charging module is controlled to charge the capacitor. The control module can control the power input circuit to charge the capacitor; it can also control the voltage acquisition circuit to acquire the voltage of the capacitor; it can also control the power input circuit to stop charging the capacitor when the voltage is greater than a preset voltage, or stop charging the capacitor after controlling the power input circuit to charge the capacitor for a preset time.

[0237] In another embodiment, the pulse light device further includes a first switch unit, wherein a first terminal of the first switch unit is connected to the light source and a second terminal of the first switch unit is grounded. The first terminal and the third terminal of the first switch unit can be controlled to conduct to discharge the capacitor to the light source, thereby causing the light source to flash.

[0238] In some embodiments, the charging module may further include a second switch unit, and one end of the capacitor connected to the light source is grounded.

[0239] The control device may further comprise:

[0240] The receiving module can receive the lighting signal.

[0241] The control module can send a charging signal and a discharging signal to the charging module and the first switch unit respectively according to the lighting signal, so as to respectively control the first switch unit and the second switch unit to be turned on and off in a preset manner, wherein the on and off states of the first switch unit and the second switch unit are opposite, so as to achieve: controlling the light source to flash N times within a flash window, N being an integer greater than or equal to 3, and when the light source flashes, controlling the capacitor to discharge the light source; and controlling the charging module to charge the capacitor in the interval between two adjacent flashes.

[0242] In some embodiments, the pulse light device may further include a control switch connected to the light source. The control module may control the control switch to be turned on to cause the light source to flash.

[0243] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the control device, control module, response module and receiving module described above can refer to the corresponding processes in the aforementioned method embodiments and the first aspect of the invention content, and will not be repeated here.

[0244] In several embodiments provided in this application, the coupling between units may be electrical, mechanical or other forms of coupling.

[0245] In addition, the functional units in the various embodiments of the present application may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0246] A pulse light device disclosed in an embodiment of the present application includes a controller, a charging module, a capacitor and a light source. The capacitor is connected between the charging module and the light source. The charging module is used to charge the capacitor, and the capacitor is used to power the light source to make the light source flash.

[0247] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the controller, charging module, capacitor and light source described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0248] In several embodiments provided in this application, the coupling between units may be electrical, mechanical or other forms of coupling.

[0249] In addition, the functional units in the various embodiments of the present application may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0250] See also Figure 18 , Figure 18 This is a schematic diagram of the structure of another pulse light device disclosed in the embodiment of this application. Figure 18 As shown, the service terminal may include a processor 1801 and a memory 1802. The memory 1802 may store one or more computer programs. The one or more computer programs are configured to execute the method described in the aforementioned method embodiment. The memory 1802 may exist independently or be integrated with the processor 1801.

[0251] Processor 1801 may include one or more processing cores. Processor 1801 can connect various components within the service terminal using various interfaces and circuits. It can execute instructions, programs, code sets, or instruction sets stored in memory 1802, as well as access data stored in memory 1802, to perform various functions of the service terminal and process data. Optionally, processor 1801 can be implemented using at least one of the following hardware forms: digital signal processing (DSP), field programmable gate array (FPGA), and programmable logic array (PLA). Processor 1801 may integrate one or a combination of a central processing unit (CPU), a graphics processing unit (GPU), and a modem. The CPU primarily handles the operating system, user interface, and application programs; the GPU is responsible for rendering and drawing display content; and the modem handles wireless communications. It is understood that the modem may not be integrated into processor 1801 and may be implemented separately via a communications chip.

[0252] Memory 1802 may include random access memory (RAM) or read-only memory (ROM). Memory 1802 may be used to store instructions, programs, code, code sets, or instruction sets. Memory 1802 may include a program storage area and a data storage area. The program storage area may store instructions for implementing an operating system, instructions for implementing at least one function, instructions for implementing each of the above-described method embodiments, and the like. The data storage area may also store data created by the service terminal during use.

[0253] When the computer program instructions stored in the memory 1802 are executed, the processor 1801 can be used to perform various operations performed by the service terminal in the above method embodiment. The specific implementation of these operations can be found in the previous embodiment and will not be repeated here.

[0254] The present application also discloses a computer-readable storage medium having computer program code stored therein, which can be invoked by a processor to perform various operations in the above method embodiments. The specific implementation of each of the above operations can be found in the previous embodiments and will not be described in detail here.

[0255] The computer-readable storage medium may be an electronic memory such as a flash memory, an electrically erasable programmable read-only memory (EEPROM), an erasable programmable read-only memory (EPROM), a hard disk, or a ROM. Alternatively, the computer-readable storage medium may include a non-transitory computer-readable storage medium. The computer-readable storage medium has storage space for program codes for executing any of the method steps in the above method. These computer program codes may be read from or written to one or more computer program products. The computer program codes may be compressed, for example, in an appropriate form.

[0256] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A method for controlling a pulse light device, characterized in that: The pulse light device is a hair removal device or a skin rejuvenation device, and includes a charging module, a capacitor, and a light source. The capacitor is connected between the charging module and the light source. The charging module is used to charge the capacitor, and the capacitor is used to power the light source to cause the light source to flash. The control method includes: Controlling the light source to flash N times within a flash window to release energy to the skin through energy superposition and accumulation; wherein N is an integer greater than or equal to 3, and controlling the capacitor to discharge the light source when the light source flashes; During an interval between two adjacent flashes, the charging module is controlled to charge the capacitor; wherein the interval between the two adjacent flashes is greater than the interval between other two adjacent flashes in the flash window.

2. The control method according to claim 1, characterized in that: The method of controlling the light source to flash N times within a flash window to release energy to the skin by energy superposition and accumulation, and controlling the charging module to charge the capacitor during an interval between two adjacent flashes comprises: Controlling the light source to flash M times, where M is an integer greater than or equal to 1; Controlling the charging module to charge the capacitor for a preset time, wherein the preset time is greater than or equal to 0.4 seconds and less than or equal to 0.95 seconds; The light source is controlled to flash K times, where K is an integer greater than or equal to 1, and N is greater than or equal to M+K.

3. The control method according to claim 2, characterized in that: When M is greater than 1, the time interval between adjacent flashes in the M flashes is greater than or equal to 0.06 seconds and less than or equal to 0.4 seconds; and / or, The preset duration is greater than or equal to 0.5 seconds and less than or equal to 0.7 seconds; and / or, When K is greater than 1, the time interval between adjacent flashes in the K flashes is greater than or equal to 0.06 seconds and less than or equal to 0.4 seconds.

4. The control method according to claim 3, characterized in that: The time interval between adjacent flashes in the M flashes is greater than or equal to 0.06 seconds and less than or equal to 0.4 seconds, including: The time interval between adjacent flashes in the M flashes is greater than or equal to 0.1 seconds and less than or equal to 0.3 seconds; and / or, The time interval between adjacent flashes in the K flashes is greater than or equal to 0.06 seconds and less than or equal to 0.4 seconds, including: The time interval between adjacent flashes in the K flashes is greater than or equal to 0.1 seconds and less than or equal to 0.3 seconds.

5. The control method according to any one of claims 1 to 4, characterized in that: The flash duration of each flash of the light source is greater than or equal to 0.3 milliseconds and less than or equal to 10 milliseconds; and / or, There is a flash in the flashes after the interval between the two adjacent flashes, and the flash duration of the flash is longer than the flash durations of other flashes in the flash window.

6. The control method according to claim 5, characterized in that: The flash duration of each flash of the light source is greater than or equal to 0.5 milliseconds and less than or equal to 4 milliseconds; and / or, The flash duration of the flash is greater than or equal to 1.2 milliseconds and less than or equal to 3 milliseconds.

7. The control method according to any one of claims 2 to 4, characterized in that: When M is 2, the durations of the two flashes in the M flashes are equal, or the duration of the first flash in the M flashes is shorter than the duration of the second flash; and / or, When K is 2, the durations of the two flashes in the K flashes are equal, or the duration of the first flash in the K flashes is shorter than the duration of the second flash.

8. The control method according to any one of claims 2 to 4, characterized in that: When K is 2, the duration of the first flash in the K flashes is shorter than the duration of the second flash, and in the K flashes, the duration of the first flash is greater than or equal to 0.3 milliseconds and less than or equal to 0.7 milliseconds, and the duration of the second flash is greater than or equal to 1.2 milliseconds and less than or equal to 3 milliseconds.

9. The control method according to claim 4, characterized in that: The pulse light device further includes a gear setting module, wherein the gear setting module is provided with a plurality of gears, and the control method further includes: In response to a user selecting a target gear position from the plurality of gear positions through the gear setting module, determining the target gear position; The controlling the light source to flash N times within a flash window comprises: Controlling the light source to flash N times within a flash window according to the target gear position; The multiple gears correspond to one or more of N, M, K, preset duration, flash duration of each flash of the light source, and time interval between two adjacent flashes that are different.

10. A pulse light device, characterized in that: The device comprises a controller, a charging module, a capacitor, and a light source. The capacitor is connected between the charging module and the light source. The charging module is used to charge the capacitor. The capacitor is used to power the light source to make the light source flash. The controller is used to: Controlling the light source to flash N times within a flash window to release energy to the skin through energy superposition and accumulation; wherein N is an integer greater than or equal to 3, and controlling the capacitor to discharge the light source when the light source flashes; During an interval between two adjacent flashes, the charging module is controlled to charge the capacitor; wherein the interval between the two adjacent flashes is greater than the interval between other two adjacent flashes in the flash window.

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