JP2023020928A - Power supply circuit, power supply device, and microcurrent face mask - Google Patents

Abstract

To provide a power supply circuit, a power supply device, and a microcurrent face mask.SOLUTION: The present application discloses a power supply circuit, a power supply device, and a microcurrent face mask for use in a conductive mask body. A control module receives a first external signal, adjusts a duty ratio of a first pulse signal in accordance with the first external signal to output a first pulse signal. A power supply module adjusts a pulse width of a pulse voltage according to the first pulse signal to output the pulse voltage to the mask body. A pulse width of the pulse voltage is adjusted via the first external signal and a pulse width of a pulse current acting on a face of a user is adjusted. Thereby, a time for which one consecutive current flow in a face is adjusted. Inflicting pain to a user is avoided that is caused by activation of fiber for transmitting pain to a face by the pulse current when time during which one consecutive current flows is too long. Comfort of a user is improved when repair and beauty on the face is performed by the pulse current.SELECTED DRAWING: Figure 1

Description

The present application belongs to the technical field of electronic circuits, and more particularly relates to power supply circuits, power supply devices and microcurrent face masks.

A conventional microcurrent face mask comprises a conductive mask body. When in use, the user places the mask body on the face to form a circuit in which the mask body conducts through the user's face. To achieve restorative or cosmetic purposes for the user's face. However, if the microcurrent applied to the user's face is applied for too long a time, the fibers that transmit the pain to the user's face are activated, causing the user to feel pain and discomfort. I feel

An object of the present application is to provide a power supply circuit for solving the problem that the conventional microcurrent face mask causes pain and discomfort to the user.

A first aspect of embodiments of the present application is a power supply circuit for use in a conductive mask body, comprising:
a control module configured to receive a first external signal, adjust a duty ratio of a first pulse signal according to the first external signal, and output the first pulse signal;
a power module connected to the control module, the power module configured to adjust a pulse width of a pulse voltage according to the first pulse signal and output the pulse voltage to the mask body; A power supply circuit is provided.

In one embodiment, the power supply module includes a boost assembly and a voltage regulation assembly,
The boost assembly is configured to receive a second pulse signal and, upon input of the first conduction signal, boost a supply voltage according to the second pulse signal to produce a first voltage. is,
The voltage regulation assembly is connected to the boost assembly and configured to regulate a pulse width of the first voltage, a frequency of the first voltage according to the first pulse signal to generate the pulse voltage. is,
Correspondingly, the control module receives a second external signal and adjusts the frequency of the second pulse signal according to the second external signal to output the second pulse signal; 4 external signal is input, it is further configured to output the first conduction signal.

In one embodiment, the boost assembly includes a boost unit and a switch unit,
the switch unit is configured to output a second conduction signal when the first conduction signal is input;
The step-up unit is connected to the switch unit and configured to step-up the supply voltage according to the second pulse signal to generate the first voltage when the second conduction signal is input. be.

In one embodiment, the boost unit includes a first inductor, a first resistor, a first capacitor, a first diode, a second capacitor and a first field effect transistor. ,
A first terminal of the first inductor is connected to a supply voltage input terminal of the boosting unit, a supply voltage input terminal of the boosting unit is used to input the supply voltage, and the first inductor , the first terminal of the first diode, and the collector electrode of the first field effect transistor are commonly connected, and the negative electrode of the first diode is connected to the second capacitor and connected to the first voltage output terminal of the boosting unit, the base electrode of the first field effect transistor, the first terminal of the first capacitor, the first and a first terminal of a resistor of said first capacitor is connected in common, a second terminal of said first capacitor is connected to a second terminal of said first resistor and a second pulse of said booster unit. A second pulse signal input terminal of the boosting unit is used to input a second pulse signal, a second terminal of the second capacitor and the first electric field are connected to a signal input terminal, the second pulse signal input terminal of the boosting unit is used to input a second pulse signal; The emitter electrodes of the effect transistors are connected together to power ground.

In one embodiment, the switch unit comprises a second resistor, a third resistor and a second field effect transistor,
A first terminal of the third resistor is connected to a second conduction signal output terminal of the switch unit, and a second conduction signal output terminal of the switch unit outputs the second conduction signal. A second terminal of said third resistor is connected to a collector electrode of said second field effect transistor, and a base electrode of said second field effect transistor is connected to a second terminal of said second resistor. 1 terminal, the second terminal of the second resistor is connected to the first conduction signal input terminal of the switch unit, and the first conduction signal input terminal of the switch unit is the first It is used to input a 1 conduction signal and the emitter electrode of said second field effect transistor is connected to the power supply ground.

In one embodiment, the voltage regulation assembly comprises a third field effect transistor, a fourth field effect transistor, a fifth field effect transistor, a fourth resistor, a fifth resistor, a 6 resistors, a seventh resistor, an eighth resistor, and a second diode;
The emitter electrode of the third field effect transistor is connected to the first terminal of the sixth resistor and to the first voltage input terminal of the voltage regulation assembly; is used to input the first voltage, the base electrode of the third field effect transistor is connected to the first terminal of the fourth resistor, and the fourth resistor the second terminal of the resistor, the second terminal of the sixth resistor, and the collector electrode of the fifth field effect transistor are commonly connected, and the base electrode of the fifth field effect transistor is the connected to the first terminal of a fifth resistor, the second terminal of the fifth resistor being connected to the first pulse signal input terminal of the voltage regulation assembly; is used to input the first pulse signal, the base electrode of the fourth field effect transistor is connected to the first terminal of the seventh resistor, and the fourth The collector electrode of the field effect transistor of is connected to the positive electrode of the second diode, the negative electrode of the second diode is connected to the first terminal of the eighth resistor, and the fifth field effect transistor of The emitter electrode, the second terminal of the seventh resistor, and the second terminal of the eighth resistor are all connected to power ground, and the collector electrode of the third field effect transistor is: It is connected to the pulse voltage output terminal of the voltage regulation assembly and connected to the positive terminal of the mask body, and the emitter electrode of the fourth field effect transistor is connected to the negative terminal of the mask body.

In one embodiment, the pulse current generated by the pulse voltage acting on the mask body and face is 0.4-0.6 mA.

A second aspect of embodiments of the present application provides a power supply device including a power supply circuit according to any of the first aspects.

A third aspect of embodiments of the present application is a microcurrent face mask comprising a mask body and a power supply circuit according to any of the first aspects, comprising:
The mask body provides a microcurrent face mask that is used to rest on a user's face and generate a pulsed current on the face according to the pulsed voltage.

In one embodiment, the mask body is coated with a beauty essence.

Compared with the prior art, the beneficial effects of the embodiments of the present invention are as follows: output the first external signal to the control module to adjust the pulse width of the pulse voltage, and further to the user's face Adjusting the pulse width of the applied pulse current This adjusts the time during which one continuous current flows through the face. To avoid giving pain to a user due to the activation of fibers for transmission by a pulse current, and to improve the comfort of the user when repairing or beautifying the face by the pulse current.

1 is a first exemplary principle block diagram of a power supply circuit provided by an embodiment of the present application; FIG. FIG. 4 is a second exemplary principle block diagram of a power supply circuit provided by an embodiment of the present application; FIG. 4 is a second exemplary principle block diagram of a power supply circuit provided by an embodiment of the present application; 1 is an exemplary circuit principle diagram of a power supply circuit provided by an embodiment of the present application; FIG. 5 is a first experimental data graph for the power supply circuit shown in FIG. 4; 5 is a second experimental data graph for the power supply circuit shown in FIG. 4; 5 is a third experimental data graph for the power supply circuit shown in FIG. 4;

In order to make the technical problems, technical solutions and effects of the invention to be solved by the present application more comprehensible, the present invention will be described in detail below with reference to the drawings and embodiments. It should be understood that the specific examples described herein are for the purpose of interpreting the invention only, and are not intended to limit the invention.

Also, the terms "first" and "second" are used for descriptive purposes only and are intended to indicate or imply relative importance or to imply the number of technical features shown. don't take it for granted. Thus, features defined as "first," "second," etc., may either explicitly or implicitly include one or more of such features. In the description of this application, the term "plurality" means two or more, unless otherwise specified and specifically limited.

As shown in FIG. 1, embodiments of the present application provide a power supply circuit for use with a conductive mask body 300 . The power supply circuit includes a control module 100 and a power supply module 200 .

The control module 100 is configured to receive a first external signal, adjust the duty ratio of the first pulse signal according to the first external signal, and output the first pulse signal.

The power supply module 200 is connected to the control module 100 and configured to adjust the pulse width of the pulse voltage according to the first pulse signal and output the pulse voltage to the mask body 300 .

Here, after the mask body 300 is placed on the user's face, the mask body 300 is conducted through the user's face, and at this time the pulse voltage acts on the mask body 300 and the user's face, to repair or beautify the user's face by applying a pulse current to the user's face.

In this embodiment, the control module 100 receives a first external signal input from the outside, adjusts the duty ratio of the first pulse signal according to the first external signal, and supplies the first pulse signal to the power supply. By outputting to the module 200, the power supply module 200 adjusts the pulse width of the pulse voltage output to the mask body 300 according to the first pulse signal, and adjusts the pulse width of the pulse current flowing to the user's face. to achieve Therefore, the user outputs the first external signal to the control module 100 and adjusts the pulse width of the pulse voltage to control the duration of one continuous current flow to the face, thereby allowing one time If the continuous current flow is too long, activation of the fibers for conveying pain to the face by the pulse current is avoided, avoiding giving pain to the user. The comfort of the user when repairing or beautifying the skin has been improved. Since the adipose tissue content differs from user to user, the pulse width of the pulsed current tolerable by the user also differs. By adjusting the pulse width of the pulse current, the power supply circuit of this embodiment can be applied to users with different adipose tissue contents.

Here, a user can operate an entity button or a touch button, and the entity button or touch button outputs a first external signal to the control module 100 when operated. The user can also send a voice control command to the voice recognition module, and the voice recognition module outputs a first external signal to the control module 100 according to the voice control command.

Here, the entity buttons, touch buttons and voice recognition module may all be integrated into the controller together with the control module 100 .

The first external signal may carry information to increase the set duty ratio of the first pulse signal, information to decrease the set duty ratio of the first pulse signal, or information to adjust the first pulse signal to the set duty ratio. good.

The control module 100 increases the duty ratio of the first pulse signal by a set value according to the first external signal when the first external signal carries information to increase the set duty ratio of the first pulse signal. . The control module 100 reduces the duty ratio of the first pulse signal by the set value according to the first external signal when the first external signal carries information to lower the set duty ratio of the first pulse signal. The control module 100 adjusts the duty ratio of the first pulse signal to the set duty ratio according to the first external signal when the first external signal carries information for adjusting the first pulse signal to the set duty ratio. Adjust numerically.

Here, if a duty ratio upshift button and a duty ratio downshift button are provided, the duty ratio upshift button increases the set duty ratio of the first pulse signal when pressed by the user. A first external signal carrying information is output to the control module 100, and the duty ratio downshift button, when depressed by a user, reduces the set duty ratio of the first pulse signal. Output an external signal to the control module 100 . If a plurality of duty ratio shift buttons are provided, when one of the duty ratio shift buttons is pressed, the duty ratio shift button carries information to adjust the first pulse signal to the set duty ratio. It outputs a first external signal to the control module. The above example is just one example of an external device generating a first external signal with different carried information, in practice how to generate a first external signal with different carried information is not relevant. The manufacturer can design according to the actual needs and the description of the present embodiment, and the description is omitted here.

As shown in FIG. 2, in one embodiment, power supply module 200 includes boost assembly 210 and voltage regulation assembly 220 .

The boost assembly 210 is configured to boost the supply voltage according to the second pulse signal to produce the first voltage upon receiving the second pulse signal and the first conducting signal. .

The voltage adjusting assembly 220 is connected to the boosting assembly 210 and adjusts the pulse width of the first voltage, the magnitude of the first voltage and the frequency of the first voltage according to the first pulse signal to generate a pulse voltage. configured to

Correspondingly, the control module 100 receives a second external signal, adjusts the frequency of the second pulse signal according to the second external signal, outputs the second pulse signal, and outputs the third external signal. It is further configured to receive a signal, adjust the frequency of the first pulse signal according to a third external signal, and output a first conduction signal when a fourth external signal is input.

In this embodiment, the control assembly outputs a first conduction signal to the boosting unit 210 when a fourth external signal is input, and adjusts the frequency of the second pulse signal according to the received second external signal. , and output a second pulse signal to the boosting assembly 210, so that the boosting assembly 210 boosts the supply voltage according to the second pulse signal to the first voltage when the first conducting signal is input. By generating and outputting the first voltage to the voltage regulation assembly 220, the magnitude of the first voltage can be regulated. The control assembly further adjusts the duty ratio of the first pulse signal according to the first external signal, adjusts the frequency of the first pulse signal according to the third external signal, and converts the first pulse signal to voltage output to the adjusting assembly 220, where the voltage adjusting assembly 220 adjusts the frequency, magnitude and pulse width of the first voltage according to the first pulse signal to generate a pulse voltage. Therefore, the magnitude, frequency and pulse width of the pulse current with which the pulse voltage acts on the user's face are all adjustable, and the user can select the first external signal, the second external signal, according to his needs. By inputting an external signal and a third external signal, the pulse width, magnitude, and frequency of the pulse current can be adjusted, and the pulse current suitable for the user can be adjusted. Here, by adjusting the frequency of the pulse current, it is possible to control the number of pulse currents flowing to the user's face per unit time, thereby avoiding damage to the user due to overcrowding of the pulse current per unit time. can be avoided.

Here, the user can operate the entity button or the touch button, and the entity button or the touch button receives the second external signal, the third external signal, or the fourth external signal when operated. to the control module 100 as a first external signal. Also, the user can send a voice control command to the voice recognition module, and the voice recognition module transmits the second external signal, the third external signal, or the fourth external signal to the control module according to the voice control command. Output corresponding to 100. The second external signal may carry information to increase the set frequency of the second pulse signal, decrease the set frequency of the second pulse signal, or adjust the second pulse signal to the set frequency. The third external signal may carry information to increase the set frequency of the first pulse signal, decrease the set frequency of the first pulse signal, or adjust the first pulse signal to the set frequency. The fourth external signal may be a signal carrying high level information or a signal carrying low level information.

For the specific method of generating the second external signal and the third external signal carrying different information, please refer to the method of generating the first external signal, and the description is omitted here.

Here, the first external signal and the third external signal can be input by the same button. For example, when the mode button is pressed, the mode signal is output at the same time, and the mode signal is the first external signal. signal and a third external signal, the duty ratio and frequency of the first pulse signal can be adjusted by controlling the mode button.

If a switch button is provided, when the user presses the switch button, the switch button either outputs a fourth external signal carrying low level information or outputs a fourth external signal carrying high level information. 4 external signals.

Here, the voltage regulation assembly 220 slightly reduces the magnitude of the pulse voltage as it increases the pulse width of the pulse voltage according to the first pulse signal. The voltage regulation assembly 220 increases the magnitude of the pulse voltage as it decreases the pulse width of the pulse voltage according to the first pulse signal. When the magnitude of the pulse voltage decreases, the frequency of the second pulse signal is adjusted to increase the first voltage, thereby increasing the magnitude of the pulse voltage.

In one embodiment, the boost assembly 210 includes a boost unit 211 and a switch unit 212, as shown in FIG.

The switch unit 212 is configured to output a second conduction signal when the first conduction signal is input.

The step-up unit 211 is connected to the switch unit 212 and configured to step-up the supply voltage VIN according to the second pulse signal to generate a first voltage when the second conduction signal is input.

In this embodiment, the switch unit 212 outputs a second conduction signal to the boosting unit 211 when the first conducting signal is input, so that the boosting unit 211 boosts the supply voltage according to the second pulse signal. to generate a first voltage. The switch unit 212 controls whether or not the booster unit 211 operates. This makes it possible to control whether or not the pulse current is applied to the user's face.

As shown in FIG. 4, in one embodiment, the boost unit 211 includes a first inductor L1, a first resistor R1, a first capacitor C1, a first diode D1, a second capacitor C2 and a first field effect transistor Q1.

The first terminal of the first inductor L1 is connected to the input terminal of the supply voltage VIN of the boosting unit 211, the input terminal of the supply voltage VIN of the boosting unit 211 is used to input the supply voltage VIN, and the first The second terminal of the inductor L1, the first terminal of the first diode D1, and the collector electrode of the first field effect transistor Q1 are commonly connected, and the negative electrode of the first diode D1 is connected to the second terminal. connected to the first terminal of the capacitor C2 and to the first voltage output terminal of the step-up unit 211, the base electrode of the first field effect transistor Q1, the first terminal of the first capacitor, the The first terminal of the first resistor R1 is connected in common, the second terminal of the first capacitor is connected to the second terminal of the first resistor R1 and the second terminal of the booster unit 211. is connected to the pulse signal input terminal, the second pulse signal input terminal of the boosting unit 211 is used to input the second pulse signal, the second terminal of the second capacitor C2 and the first electric field Both the emitter electrode of the effect transistor Q1 and the power supply ground are connected.

As shown in FIG. 4, in one embodiment, switch unit 212 includes a second resistor R2, a third resistor R3, and a second field effect transistor Q2.

The first terminal of the third resistor R3 is connected to the output terminal of the second conduction signal of the switch unit 212, and the output terminal of the second conduction signal of the switch unit 212 is for outputting the second conduction signal. , the second terminal of the third resistor R3 is connected to the collector electrode of the second field effect transistor Q2, the base electrode of the second field effect transistor Q2 is connected to the first terminal of the second resistor R2. , the second terminal of the second resistor R2 is connected to the first conduction signal input terminal of the switch unit 212, and the first conduction signal input terminal of the switch unit 212 is connected to the first Used to input the conduction signal, the emitter electrode of the second field effect transistor Q2 is connected to the power supply ground.

As shown in FIG. 4, in one embodiment, voltage regulation assembly 220 includes a third field effect transistor Q3, a fourth field effect transistor Q4, a fifth field effect transistor Q5, and a fourth resistor. R4, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, an eighth resistor R8 and a second diode D2.

The emitter electrode of the third field effect transistor Q3 is connected to the first terminal of the sixth resistor R6 and to the first voltage input terminal of the voltage regulation assembly 220, and the first terminal of the voltage regulation assembly 220 is used to input the first voltage, the base electrode of the third field effect transistor Q3 is connected to the first terminal of the fourth resistor R4, and the fourth resistor R4 , the second terminal of the sixth resistor R6, and the collector electrode of the fifth field effect transistor Q5 are commonly connected, and the base electrode of the fifth field effect transistor Q5 is the fifth terminal. , the second terminal of the fifth resistor R5 is connected to the first pulse signal input terminal of the voltage regulation assembly 220, and the first terminal of the voltage regulation assembly 220 is connected to the first terminal of the fifth resistor R5. The pulse signal input terminal is used to input the first pulse signal, the base electrode of the fourth field effect transistor Q4 is connected to the first terminal of the seventh resistor R7, and the fourth field effect transistor Q4 is connected to the first terminal of the seventh resistor R7. The collector electrode of the transistor Q4 is connected to the positive terminal of the second diode D2, the negative terminal of the second diode D2 is connected to the first terminal of the eighth resistor R8, and the emitter electrode of the fifth field effect transistor Q5. and the second terminal of the seventh resistor R7 and the second terminal of the eighth resistor R8 are both connected to power supply ground, and the collector electrode of the third field effect transistor Q3 is connected to the voltage regulator. It is connected to the output terminal of the pulse voltage of the assembly 220 and connected to the positive terminal of the mask body 300 , and the emitter electrode of the fourth field effect transistor Q4 is connected to the negative terminal of the mask body 300 .

As shown in FIG. 4, in one embodiment, the control module 100 includes a pulse chip U1, the first pulse output terminal PWM1 of the pulse chip U1 is connected to the first pulse signal output terminal of the control module 100. The second pulse output terminal PWM2 of the pulse chip U1 is connected to the second pulse signal output terminal of the control module 100, and the first general-purpose output terminal PA1 of the pulse chip U1 is connected to the second pulse signal output terminal of the control module 100. 1 conduction signal output terminal, the first general purpose input terminal PB1 of the pulse chip U1 is connected to the first external signal input terminal of the control module 100, and the second general purpose input terminal of the pulse chip U1. PB2 is connected to the second external signal input terminal of the control module 100, the third general-purpose input terminal PB3 of the pulse chip U1 is connected to the third external signal input terminal of the control module 100, and the pulse chip A fourth general purpose input terminal PB4 of U1 is connected to a fourth external signal input terminal of the control module 100 .

In one embodiment, when the first general purpose output terminal PA1 of the pulse chip U1 outputs a power-on signal and acts on the base electrode of the second field effect transistor Q2 through the second resistor R2, the The power-on signal includes a high level signal having a first duration and a low level first conduction signal having a second duration. The base electrode of the second field effect transistor Q2 conducts under the action of a high level signal having a first duration, and the second capacitor C2 connects the third resistor R3 and the second field effect transistor Q2. and the second capacitor C2 is completely discharged within the first duration. The base electrode of the second field effect transistor Q2 cuts off under the action of a low level first conduction signal having a second duration and the first voltage is applied to the emitter electrode of the third field effect transistor Q3. acts on When the first general purpose output terminal PA1 of the pulse chip U1 outputs a power off signal, the power off signal includes a high level signal with a third duration and a low level signal with a fourth duration. , the base electrode of the second field effect transistor Q2 conducts under the action of a high level signal having a third duration, the first voltage ceases to act on the emitter electrode of the third field effect transistor Q3, Moreover, since the pulse chip U1 stops outputting the first pulse signal and the second pulse signal within the third duration, the power off signal becomes low level after the third duration. The second field effect transistor Q2 is turned off again, but the first voltage is now no longer acting on the emitter electrode of the third field effect transistor Q3.

The power supply circuit shown in FIG. 4 will be described below together with the principle of operation.

When the mask body 300 is placed on the user's face, the positive electrode and the negative electrode of the mask body 300 are connected through the user's face to become conductive. The second external signal is input to the second general-purpose input terminal PB2 of the pulse chip U1, the second pulse signal output terminal PWM2 of the pulse chip U1 outputs the second pulse signal, and the first Acts on the base electrode of the first field effect transistor Q1 via the resistor R1. The first field effect transistor Q1 conducts when the second pulse signal is at high level, and cuts off when the second pulse signal is at low level. The frequency of the second pulse signal determines the rate at which the supply voltage VIN charges the second capacitor C2 after passing through the first inductor L1 and the first diode D1. The higher the frequency, the greater the amount of electricity charged in the second capacitor C2 in the same time, and the greater the magnitude of the first voltage output from the second capacitor C2. A fourth external signal is input to the fourth general-purpose input terminal PB4 of the pulse chip U1, the first general-purpose output terminal PA1 of the pulse chip U1 outputs a low level, and through the second resistor R2 acts on the base electrode of the second field effect transistor Q2, the second field effect transistor Q2 cuts off, the first general purpose output PA1 of the pulse chip U1 outputs a high level, and the second resistor When acting on the base electrode of the second field effect transistor Q2 via R2, the second field effect transistor Q2 conducts. When the second field effect transistor cuts off, the first voltage acts on the emitter electrode of the third field effect transistor Q3. By controlling the level output from the first general-purpose output terminal PA1 of the pulse chip U1, it is controlled whether or not the first voltage is output to the subsequent circuit. The first external signal and the third external signal are input to the first general-purpose input terminal PB1 of the pulse chip U1 and the third general-purpose input terminal PB3 of the pulse chip U1, respectively. The output terminal PWM1 outputs the first pulse signal and acts on the base electrode of the fifth field effect transistor Q5 via the fifth resistor R5. The fifth field effect transistor Q5 conducts when the first pulse signal is at high level and cuts off when the first pulse signal is at low level. When the fifth field effect transistor Q5 conducts, the base electrode of the third field effect transistor Q3 is connected to the power supply ground through the fifth field effect transistor Q5, causing the third field effect transistor Q3 to conduct. When the fifth field effect transistor Q5 turns off, the third field effect transistor Q3 turns off. Therefore, the pulse width and frequency of the first pulse signal determine the conduction time of the third field effect transistor Q3 and the number of conduction times per unit time, which in turn determine the pulse width and frequency of the pulse voltage. , the pulse width and frequency of the pulsed current acting on the user's face are determined. Therefore, the first pulse signal and the second pulse signal together determine the duty ratio, frequency and magnitude of the pulse current. The duty ratio and frequency of the first pulse signal determine the duty ratio and frequency at which the third field effect transistor Q3 conducts, and determine the duty ratio and frequency of the pulse current acting on the user's face. Therefore, the magnitude, frequency and pulse width of the pulse current applied to the user's face are all adjustable, and the user can select the first external signal, the second external signal, according to his needs. , and a third external signal, the pulse width, frequency, and magnitude of the pulse current can be adjusted, and the pulse current suitable for the user can be adjusted.

Hereinafter, the power supply circuit shown in FIG. 4 will be described through experimental data.

As shown in FIG. 5, in FIG. 5, the pulse voltage/time experiment when the duty ratio of the first pulse signal is 20%, 30%, 40%, and 50%, respectively, with other data unchanged. Data graphs are shown. As can be seen from the drawing, as the duty ratio of the first pulse signal increases, the pulse width of the pulse voltage increases and the magnitude of the pulse voltage decreases.

As shown in FIG. 6, FIG. 6 shows experimental data graphs of pulse voltage/time when the frequency of the first pulse signal is 500 Hz, 1000 Hz, 2000 Hz and 3000 Hz with other data unchanged. It can be seen from the drawing that the frequency of the pulse voltage increases as the frequency of the first pulse signal increases.

As shown in FIG. 7, FIG. 7 shows experimental data graphs of pulse voltage/time when the frequency of the second pulse signal is 10 Hz, 50 Hz, 200 Hz, and 500 Hz with other data unchanged. It can be seen from the drawing that the magnitude of the pulse voltage increases as the frequency of the second pulse signal increases.

5 to 7, by adjusting the duty ratio of the first pulse signal, the frequency of the first pulse signal, and the frequency of the second pulse signal, the pulse width, frequency, and pulse voltage of the pulse voltage All of the magnitudes are adjustable, thereby meeting the user's needs to adjust the pulse width, frequency, and magnitude of the pulsed current acting on the face.

In one embodiment, the pulse current generated by the pulse voltage acting on the mask body 300 and the user's face is 0.4-0.6 mA.

In this embodiment, by controlling the pulse current acting on the user's face to 0.4 to 0.6 mA, the pulse current can penetrate the epidermal cells of the user's face and reach the dermis layer. , and the magnitude of the pulse current does not cause discomfort to the human body and poses no danger to the user.

Embodiments of the present application further provide a power supply device including the power supply circuit of any of the above embodiments, and the power supply of this embodiment includes the power supply circuit of any of the above embodiments, so that at least the above It includes beneficial effects corresponding to the power supply circuit of either embodiment.

Embodiments of the present application further provide a microcurrent face mask including a mask body 300 and a power supply circuit of any of the embodiments above, wherein the microcurrent face mask of this embodiment is a microcurrent face mask of any of the embodiments above. Since it includes a power supply circuit, it includes at least the beneficial effects corresponding to the power supply circuit of any of the above embodiments.

The mask body 300 is used to rest on the user's face and generate a pulse current on the face according to the pulse voltage.

In one embodiment, the mask body 300 includes electrode lines and an electrode carrier, with the electrode lines disposed on the electrode carrier. The electrode lines are arranged on the electrode carrier in mesh or radial fashion, and the electrode lines can form a uniform conductive network on the user's face.

The electrode carrier is a flexible material carrier that can be placed on the user's face, the electrode carrier conforms to the user's face, and may be a non-woven carrier.

The electrode lines include first conductive lines and second conductive lines. A first terminal of the first conductive line is connected to the positive pole of the mask body 300 and used to input the pulse voltage, and a second terminal of the first conductive line is connected to the user's face. used to A first terminal of the second conductive line is connected to the negative terminal of the mask body 300 and a second terminal of the second conductive line is used to connect to the user's face.

In one embodiment, the mask body 300 is coated with a beauty essence, which can improve the conduction performance of the mask body 300, and the action of the pulse current causes the beauty fluid to be absorbed by the user's face. easier to be

For those skilled in the art, only the division of the above functional units and modules is illustrated for ease of explanation and brevity. It will be clearly understood that all or part of the functions described above may be achieved by means of functional units, modules, ie the internal structure of the device may be divided into different functional units or modules. Each functional unit, module in an embodiment may be integrated into one processing unit, may exist physically separately, and two or more units may be integrated into one unit, The integrated units may be implemented using the form of hardware or may be implemented using the form of software functional units. In addition, the specific names of each functional unit and module are only for the purpose of distinguishing each other, and do not limit the scope of protection of the present application. For the specific working processes of the units and modules in the above system, please refer to the corresponding processes in the above method embodiments, and will not be described again here.

In the above embodiments, the description of each embodiment has its own merits, and the parts not described in detail or not described in one embodiment can be referred to the related descriptions of other embodiments.

Those skilled in the art should be aware that the units and algorithmic steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented by electronic hardware or a combination of computer software and electronic hardware. be. Whether these functions are implemented in the form of hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, and such implementations are believed to be within the scope of the present application. should.

The above examples are for the purpose of describing the technical solutions of the present application, but are not limited thereto. Although the present application has been described in detail with reference to the above embodiments, those skilled in the art can modify the technical solutions described in the above embodiments, or equivalently implement some of the technical features thereof. It should be understood that they are interchangeable. These modifications and replacements fall within the protection scope of the present application without the essence of the corresponding technical solutions departing from the gist and scope of the technical solutions of each embodiment of the present application.

Claims (10)

A power supply circuit for use in a conductive mask body, comprising:
a control module configured to receive a first external signal, adjust a duty ratio of a first pulse signal according to the first external signal, and output the first pulse signal;
a power module connected to the control module, the power module configured to adjust a pulse width of a pulse voltage according to the first pulse signal and output the pulse voltage to the mask body; A power supply circuit, comprising: the power supply module includes a boost assembly and a voltage regulation assembly;
The boost assembly is configured to receive a second pulse signal and, upon input of the first conduction signal, boost a supply voltage according to the second pulse signal to produce a first voltage. is,
The voltage adjustment assembly is connected to the boost assembly and adjusts the pulse width of the first voltage, the magnitude of the first voltage and the frequency of the first voltage according to the first pulse signal. configured to generate the pulse voltage;
Correspondingly, the control module receives a second external signal and adjusts the frequency of the second pulse signal according to the second external signal to output the second pulse signal; receiving 3 external signals, adjusting the frequency of the first pulse signal according to the third external signal, and outputting the first conducting signal when a fourth external signal is input; 2. The power supply circuit of claim 1, further comprising: the boost assembly includes a boost unit and a switch unit;
the switch unit is configured to output a second conduction signal when the first conduction signal is input;
The step-up unit is connected to the switch unit and configured to step-up the supply voltage according to the second pulse signal to generate the first voltage when the second conduction signal is input. 3. The power supply circuit according to claim 2, wherein: the boosting unit includes a first inductor, a first resistor, a first capacitor, a first diode, a second capacitor and a first field effect transistor;
A first terminal of the first inductor is connected to a supply voltage input terminal of the boosting unit, a supply voltage input terminal of the boosting unit is used to input the supply voltage, and the first inductor , the first terminal of the first diode, and the collector electrode of the first field effect transistor are commonly connected, and the negative electrode of the first diode is connected to the second capacitor and connected to the first voltage output terminal of the boosting unit, the base electrode of the first field effect transistor, the first terminal of the first capacitor, the first and a first terminal of a resistor of said first capacitor is connected in common, a second terminal of said first capacitor is connected to a second terminal of said first resistor and a second pulse of said booster unit. A second pulse signal input terminal of the boosting unit is used to input a second pulse signal, a second terminal of the second capacitor and the first electric field are connected to a signal input terminal, the second pulse signal input terminal of the boosting unit is used to input a second pulse signal; 4. A power supply circuit according to claim 3, wherein the emitter electrodes of the effect transistors are connected together to power supply ground. the switch unit includes a second resistor, a third resistor and a second field effect transistor;
A first terminal of the third resistor is connected to a second conduction signal output terminal of the switch unit, and a second conduction signal output terminal of the switch unit outputs the second conduction signal. A second terminal of said third resistor is connected to a collector electrode of said second field effect transistor, and a base electrode of said second field effect transistor is connected to a second terminal of said second resistor. 1 terminal, the second terminal of the second resistor is connected to the first conduction signal input terminal of the switch unit, and the first conduction signal input terminal of the switch unit is the first 4. A power supply circuit according to claim 3, wherein said second field effect transistor is used for inputting a one conduction signal, and wherein said emitter electrode of said second field effect transistor is connected to power supply ground. The voltage regulation assembly includes a third field effect transistor, a fourth field effect transistor, a fifth field effect transistor, a fourth resistor, a fifth resistor and a sixth resistor. , a seventh resistor, an eighth resistor, and a second diode;
The emitter electrode of the third field effect transistor is connected to the first terminal of the sixth resistor and to the first voltage input terminal of the voltage regulation assembly; is used to input the first voltage, the base electrode of the third field effect transistor is connected to the first terminal of the fourth resistor, and the fourth resistor the second terminal of the resistor, the second terminal of the sixth resistor, and the collector electrode of the fifth field effect transistor are commonly connected, and the base electrode of the fifth field effect transistor is the connected to the first terminal of a fifth resistor, the second terminal of the fifth resistor being connected to the first pulse signal input terminal of the voltage regulation assembly; is used to input the first pulse signal, the base electrode of the fourth field effect transistor is connected to the first terminal of the seventh resistor, and the fourth The collector electrode of the field effect transistor of is connected to the positive electrode of the second diode, the negative electrode of the second diode is connected to the first terminal of the eighth resistor, and the fifth field effect transistor of The emitter electrode, the second terminal of the seventh resistor, and the second terminal of the eighth resistor are all connected to power ground, and the collector electrode of the third field effect transistor is: 4. The fourth field effect transistor is connected to a pulse voltage output terminal of said voltage regulation assembly and to a positive terminal of said mask body, and an emitter electrode of said fourth field effect transistor is connected to a negative terminal of said mask body. Item 3. The power supply circuit according to item 2. The power supply circuit according to any one of claims 1 to 6, wherein a pulse current generated by said pulse voltage acting on said mask body and face is 0.4 to 0.6 mA. A power supply device comprising the power supply circuit according to any one of claims 1 to 7. A mask body and a power supply circuit according to any one of claims 1 to 7,
A microcurrent face mask, wherein the mask body is used to be placed on a user's face and generates a pulse current on the face according to the pulse voltage. 10. The microcurrent face mask according to claim 9, wherein the mask body is coated with a beauty essence.

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