Intelligent control circuit of beauty instrument

Abstract

The invention discloses an intelligent control circuit of a beauty instrument, which relates to the technical field of beauty instrument control, and comprises a micro-control module for providing square wave signals, performing double-path signal conversion and isolation amplification processing by a driving control module, and providing two paths of driving signals with the same frequency and opposite phases for an electrode driving module, when the driving detection module detects that one signal conversion is abnormal when the driving control module performs double-path signal conversion work, the micro-control module controls the driving control module and the electrode driving module to switch a signal transmission path, so that the beauty micro-needle electrode in the electrode driving module is driven to perform double-path signal conversion, and the beauty micro-needle electrode in the electrode driving module is driven to perform double-path signal conversion. And the driving control module is controlled to carry out single-path signal conversion and provide two paths of driving signals with the same frequency and the same phase for the electrode driving module, so that the work of the beauty microneedle electrode is maintained. According to the intelligent control circuit of the beauty instrument, the beauty treatment work can be maintained and the circuit safety and the working efficiency can be improved under the condition that the abnormal signal conversion path is disconnected.

Description

Technical Field

[0001] This invention relates to the field of beauty device control technology, specifically an intelligent control circuit for a beauty device. Background Technology

[0002] As people's living standards improve, they also pay more attention to their appearance. In response, beauty devices that utilize physical, electronic, and optical methods to provide a personalized experience have emerged. A beauty device is a machine that regulates and improves the body and face based on human physiological functions. Currently, to achieve long-lasting anti-wrinkle effects, beauty devices mainly consist of radio frequency amplification circuits using push-pull amplifiers, field-effect transistors, and other components. They employ an alternating drive method to ensure that radio frequency energy can effectively and controllably act on the dermis layer of the skin to achieve beauty and treatment effects. However, during operation, the radio frequency amplification circuit may experience an alternating drive failure. In this case, the beauty device will malfunction, causing the beauty treatment to pause, reducing the experience and the device's efficiency. Therefore, improvements are needed. Summary of the Invention

[0003] This invention provides an intelligent control circuit for a beauty device to solve the problems mentioned in the background art.

[0004] According to an embodiment of the present invention, an intelligent control circuit for a beauty device is provided, comprising: The drive control module is connected to the microcontroller module and is used to perform dual-channel signal conversion on the first square wave signal and the second square wave signal provided by the microcontroller module and output two first drive signals and second drive signals with the same frequency and opposite phase respectively. By changing the signal transmission path of the first square wave signal and the second square wave signal, the first square wave signal and the second square wave signal are sequentially performed single-channel signal conversion and output third drive signals and fourth drive signals with the same frequency and phase respectively. An electrode driving module, connected to an electrode module, is used to perform energy conversion and provide a first radio frequency signal to the beauty microneedle electrode when receiving a first driving signal and a second driving signal, switch the signal transmission path, and perform energy conversion and provide a second radio frequency signal to the beauty microneedle electrode when receiving a third driving signal and a fourth driving signal. The drive detection module, connected to the drive control module, is used to self-lock and output a first detection signal when a first square wave signal is detected but a first drive signal is not detected, and to self-lock and output a second detection signal when a second square wave signal is detected but a second drive signal is not detected. The microcontroller module, connected to the electrode driving module and the driving detection module, is used to provide a first square wave signal and a second square wave signal when the cosmetic microneedle electrode needs to be driven. When the first detection signal or the second detection signal is received, the microcontroller module controls the switching duration of the signal transmission path of the driving control module and the electrode driving module according to the output duration of the first square wave signal and the second square wave signal, and disconnects the faulty signal conversion path, and controls the driving control module to perform single-channel signal conversion.

[0005] As a further embodiment of the present invention: the drive control module includes a first analog switch, a second analog switch, a seventh switching transistor, an eighth switching transistor, a first inverter, and a second inverter; the microcontroller module includes a first controller; Preferably, the fifth terminal of the first analog switch is connected to the output terminal of the first inverter and the collector of the seventh switching transistor; the input terminal of the first inverter is connected to the base of the eighth switching transistor, the sixth terminal of the first analog switch, and the IO3 terminal of the first controller; the third and eighth terminals of the first analog switch are both connected to the IO2 terminal of the first controller; the fourth terminal of the first analog switch is connected to the ninth terminal of the second analog switch; the ninth terminal of the first analog switch is connected to the fourth terminal of the second analog switch; the third and eighth terminals of the second analog switch are both connected to the IO1 terminal of the first controller; the fifth terminal of the second analog switch is connected to the output terminal of the second inverter and the collector of the eighth switching transistor; and the input terminal of the second inverter is connected to the sixth terminal of the second analog switch, the base of the seventh switching transistor, and the IO4 terminal of the first controller.

[0006] As a further embodiment of the present invention: the drive control module further includes a first voltage regulator, a first switching transistor, a second switching transistor, a third switching transistor, a fourth switching transistor, a first resistor, a first capacitor, and a first transformer; Preferably, the collectors of the first and third switching transistors are both connected to a first voltage regulator; the emitter of the first switching transistor is connected to the emitter of the fourth switching transistor and connected to the second terminal of the primary side of the first transformer through a first capacitor; the emitter of the third switching transistor is connected to the emitter of the second switching transistor and connected to the first terminal of the primary side of the first transformer through a first resistor; the collector of the fourth switching transistor is connected to the collector of the second switching transistor and ground; the base of the first switching transistor is connected to the base of the fourth switching transistor and the fourth terminal of the first analog switch; and the base of the third switching transistor is connected to the base of the second switching transistor and the ninth terminal of the first analog switch.

[0007] As a further embodiment of the present invention: the drive control module further includes a first diode, a second capacitor, a second resistor, a fifth switch and a fourth resistor; Preferably, the anode of the first diode is connected to the first terminal of the first secondary side of the first transformer and one terminal of the second capacitor, and is connected to the other terminal of the second capacitor and the base of the fifth switching transistor through the second resistor. The cathode of the first diode is connected to the emitter of the fifth switching transistor and is connected to the collector of the fifth switching transistor and the second terminal of the first secondary side of the first transformer through the fourth resistor.

[0008] As a further embodiment of the present invention: the drive control module further includes a second diode, a third capacitor, a third resistor, a sixth switch and a fifth resistor; Preferably, the anode of the second diode is connected to the first end of the second secondary side of the first transformer and one end of the third capacitor, and is connected to the other end of the third capacitor and the base of the sixth switching transistor through the third resistor. The collector of the sixth switching transistor is connected to one end of the fifth resistor and the second end of the second secondary side of the first transformer. The cathode of the second diode is connected to the emitter of the fifth switching transistor and the other end of the fifth resistor.

[0009] As a further embodiment of the present invention: the electrode driving module includes a second voltage regulator, a fourth capacitor, a first power transistor, a second power transistor, a third analog switch, a fourth analog switch, a fifth capacitor, a second transformer, and a cosmetic microneedle electrode; Preferably, the drain of the first power transistor is connected to the second voltage regulator and connected to one end of the fifth capacitor and the first end of the primary side of the second transformer through the fourth capacitor. The source of the first power transistor is connected to the second end of the primary side of the second transformer and the drain of the second power transistor. The source of the second power transistor and the other end of the fifth capacitor are both grounded. The first and second ends of the secondary side of the second transformer are respectively connected to the first and second ends of the cosmetic microneedle electrode. The source of the first power transistor is connected to the fourth and ninth ends of the third analog switch. The gate of the second power transistor is connected to the ninth and fourth ends of the fourth analog switch. The third end of the third analog switch is connected to the eighth end of the fourth analog switch and the cathode of the first diode. The eighth end of the third analog switch is connected to the third end of the fourth analog switch and the cathode of the second diode. The fifth and sixth ends of the third analog switch are respectively connected to the output and input ends of the second inverter. The fifth and sixth ends of the fourth analog switch are respectively connected to the output and input ends of the first inverter.

[0010] As a further embodiment of the present invention: the drive detection module includes a first logic unit, a second logic unit, a first self-locking device, and a second self-locking device; Preferably, the A and B terminals of the first logic device are connected to the cathode of the first diode and the IO1 terminal of the first controller, respectively; the A and B terminals of the first logic device are connected to the cathode of the second diode and the IO2 terminal of the first controller, respectively; the Y terminals of the first and second logic devices are connected to the input terminals of the first and second self-locking devices, respectively; and the output terminals of the first and second self-locking devices are connected to the IO5 and IO6 terminals of the first controller, respectively.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows: The intelligent control circuit of the beauty device of the present invention can be provided with a square wave signal by a micro-control module, and the drive control module performs dual-channel signal conversion and isolation amplification processing to provide two drive signals with the same frequency and opposite phase to the electrode drive module, thereby providing radio frequency signals to the beauty microneedle electrodes in the electrode drive module. When the drive detection module detects that there is an abnormal state of one signal conversion when the drive control module is performing dual-channel signal conversion, the micro-control module will control the drive control module and the electrode drive module to switch the signal transmission path, control the drive control module to perform single-channel signal conversion and provide two drive signals with the same frequency and phase to the electrode drive module, maintain the operation of the beauty microneedle electrodes, so that the beauty treatment is maintained even when the abnormal signal conversion path is disconnected, and the circuit safety and beauty work efficiency are improved. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic block diagram of the intelligent control circuit of a beauty device provided in an embodiment of the present invention.

[0014] Figure 2 The circuit diagram shows an intelligent control circuit for a beauty device provided in an embodiment of the present invention.

[0015] Figure 3 This is a first circuit diagram of the drive detection module provided in an embodiment of the present invention.

[0016] Figure 4 This is a second circuit diagram of the drive detection module provided in an embodiment of the present invention. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] In one embodiment, see Figure 1 A smart control circuit for a beauty device, comprising: The drive control module 1 is connected to the microcontroller module 4 and is used to perform dual-channel signal conversion on the first square wave signal and the second square wave signal provided by the microcontroller module 4 and output two first drive signals and second drive signals with the same frequency and opposite phase respectively. By changing the signal transmission path of the first square wave signal and the second square wave signal, the first square wave signal and the second square wave signal are sequentially performed single-channel signal conversion and output third drive signals and fourth drive signals with the same frequency and phase respectively. Electrode driving module 2, connected to electrode module, is used to perform energy conversion and provide a first radio frequency signal to the beauty microneedle electrode when receiving a first driving signal and a second driving signal, switch the signal transmission path, and perform energy conversion and provide a second radio frequency signal to the beauty microneedle electrode when receiving a third driving signal and a fourth driving signal. The drive detection module 3 is connected to the drive control module 1 and is used to self-lock and output a first detection signal when a first square wave signal is detected but a first drive signal is not detected, and to self-lock and output a second detection signal when a second square wave signal is detected but a second drive signal is not detected. The microcontroller module 4 is connected to the electrode driving module 2 and the driving detection module 3. It is used to provide a first square wave signal and a second square wave signal when the cosmetic microneedle electrode needs to be driven. When the first detection signal or the second detection signal is received, it controls the switching duration of the signal transmission path of the driving control module 1 and the electrode driving module 2 according to the output duration of the first square wave signal and the second square wave signal, and disconnects the faulty signal conversion path, and controls the driving control module 1 to perform single-channel signal conversion.

[0019] In a specific embodiment, the aforementioned drive control module 1 can employ a drive control circuit composed of analog switches, inverters, transistors, transformers, diodes, etc., which can receive the first square wave signal and the second square wave signal output by the microcontroller module 4. It performs dual-channel signal conversion and isolation amplification processing on the received signals through a drive and push-pull amplification method, outputting two signals with the same frequency but opposite phases, namely the first drive signal and the second drive signal. Alternatively, by changing the signal transmission path, it can achieve single-channel signal conversion and isolation amplification processing, outputting two signals with the same frequency and phase, namely the third drive signal and the fourth drive signal. The aforementioned electrode drive module 2 can employ an electrode drive circuit composed of analog switches, field-effect transistors, transformers, cosmetic microneedle electrodes, etc., which can receive the signals output by the drive control module 1 and control the drive... When the control module 1 performs single-channel conversion, it maintains normal driving state by switching the signal transmission path to provide radio frequency signals for the cosmetic microneedle electrodes and maintain the operation of the cosmetic microneedle electrodes. The aforementioned drive detection module 3 can adopt a drive detection circuit composed of a logic unit and a self-locking device. It can detect whether the drive control module 1 is normally outputting the first drive signal and the second drive signal according to the state of the first square wave signal and the second square wave signal output by the microcontroller module 4. When the first drive signal or the second drive signal is not normally output, it provides a high-level signal, namely the first detection signal and the second detection signal. The aforementioned microcontroller module 4 can adopt a microcontroller circuit composed of a single-chip microcomputer, which integrates many components such as an arithmetic unit, a controller, a memory, and input / output devices to realize functions such as signal processing, data storage, module control, and timing control.

[0020] In this embodiment, please refer to Figure 2 , Figure 3 and Figure 4 The drive control module 1 includes a first analog switch IC1, a second analog switch IC2, a seventh switch V7, an eighth switch V8, a first inverter INV1, and a second inverter INV2; the microcontroller module 4 includes a first controller U1. Specifically, the fifth terminal of the first analog switch IC1 is connected to the output terminal of the first inverter INV1 and the collector of the seventh switch V7. The input terminal of the first inverter INV1 is connected to the base of the eighth switch V8, the sixth terminal of the first analog switch IC1, and the IO3 terminal of the first controller U1. The third and eighth terminals of the first analog switch IC1 are both connected to the IO2 terminal of the first controller U1. The fourth terminal of the first analog switch IC1 is connected to the ninth terminal of the second analog switch IC2. The ninth terminal of the first analog switch IC1 is connected to the fourth terminal of the second analog switch IC2. The third and eighth terminals of the second analog switch IC2 are both connected to the IO1 terminal of the first controller U1. The fifth terminal of the second analog switch IC2 is connected to the output terminal of the second inverter INV2 and the collector of the eighth switch V8. The input terminal of the second inverter INV2 is connected to the sixth terminal of the second analog switch IC2, the base of the seventh switch V7, and the IO4 terminal of the first controller U1.

[0021] In a specific embodiment, the first analog switch IC1 and the second analog switch IC2 can both be CD4066 chips; the first inverter INV1 and the second inverter INV2 can both be NOT gates; the first controller U1 can be an STM32 microcontroller; the eighth switch V8 and the seventh switch V7 can both be NPN transistors, which respectively pull down the potential of the fifth terminal of the second analog switch IC2 and the fifth terminal of the first analog switch IC1.

[0022] Furthermore, the drive control module 1 also includes a first voltage regulator VCC1, a first switching transistor V1, a second switching transistor V2, a third switching transistor V3, a fourth switching transistor V4, a first resistor R1, a first capacitor C1, and a first transformer B1; Specifically, the collectors of the first switch V1 and the third switch V3 are both connected to the first voltage regulator VCC1. The emitter of the first switch V1 is connected to the emitter of the fourth switch V4 and is connected to the second terminal of the primary side of the first transformer B1 through the first capacitor C1. The emitter of the third switch V3 is connected to the emitter of the second switch V2 and is connected to the first terminal of the primary side of the first transformer B1 through the first resistor R1. The collector of the fourth switch V4 is connected to the collector of the second switch V2 and ground. The base of the first switch V1 is connected to the base of the fourth switch V4 and the fourth terminal of the first analog switch IC1. The base of the third switch V3 is connected to the base of the second switch V2 and the ninth terminal of the first analog switch IC1.

[0023] In a specific embodiment, both the first switch V1 and the third switch V3 can be NPN transistors; both the second switch V2 and the fourth switch V4 can be PNP transistors.

[0024] Furthermore, the drive control module 1 also includes a first diode D1, a second capacitor C2, a second resistor R2, a fifth switch V5, and a fourth resistor R4; Specifically, the anode of the first diode D1 is connected to the first terminal of the first secondary side of the first transformer B1 and one terminal of the second capacitor C2, and is connected to the other terminal of the second capacitor C2 and the base of the fifth switching transistor V5 through the second resistor R2. The cathode of the first diode D1 is connected to the emitter of the fifth switching transistor V5, and is connected to the collector of the fifth switching transistor V5 and the second terminal of the first secondary side of the first transformer B1 through the fourth resistor R4.

[0025] In a specific embodiment, the fifth switch V5 can be a PNP transistor, which works with the first diode D1, the second capacitor C2, the second resistor R2, the first transformer B1 and the fourth resistor R4 to perform single-channel signal conversion. When the fifth switch V5 is turned on, it can perform rapid discharge processing on the field-effect transistor in the electrode drive module 2.

[0026] Furthermore, the drive control module 1 also includes a second diode D2, a third capacitor C3, a third resistor R3, a sixth switch V6, and a fifth resistor R5; Specifically, the anode of the second diode D2 is connected to the first end of the second secondary side of the first transformer B1 and one end of the third capacitor C3, and is connected to the other end of the third capacitor C3 and the base of the sixth switch V6 through the third resistor R3. The collector of the sixth switch V6 is connected to one end of the fifth resistor R5 and the second end of the second secondary side of the first transformer B1. The cathode of the second diode D2 is connected to the emitter of the fifth switch V5 and the other end of the fifth resistor R5.

[0027] In a specific embodiment, the sixth switch V6 can be a PNP transistor, which works with the second diode D2, the third capacitor C3, the third resistor R3, the first transformer B1 and the fifth resistor R5 to perform single-channel signal conversion. When the sixth switch V6 is turned on, it can perform rapid discharge processing on the field-effect transistor in the electrode drive module 2.

[0028] Furthermore, the electrode driving module 2 includes a second voltage regulator VCC2, a fourth capacitor C4, a first power transistor Q1, a second power transistor Q2, a third analog switch IC3, a fourth analog switch IC4, a fifth capacitor C5, a second transformer B2, and a cosmetic microneedle electrode. Specifically, the drain of the first power transistor Q1 is connected to the second regulated power source VCC2 and, through the fourth capacitor C4, to one end of the fifth capacitor C5 and the first end of the primary side of the second transformer B2. The source of the first power transistor Q1 is connected to the second end of the primary side of the second transformer B2 and the drain of the second power transistor Q2. The source of the second power transistor Q2 and the other end of the fifth capacitor C5 are both grounded. The first and second ends of the secondary side of the second transformer B2 are respectively connected to the first and second ends of the cosmetic microneedle electrode. The source of the first power transistor Q1 is connected to the fourth end of the third analog switch IC3 and the ninth... The gate of the second power transistor Q2 is connected to the ninth and fourth terminals of the fourth analog switch IC4. The third terminal of the third analog switch IC3 is connected to the eighth terminal of the fourth analog switch IC4 and the cathode of the first diode D1. The eighth terminal of the third analog switch IC3 is connected to the third terminal of the fourth analog switch IC4 and the cathode of the second diode D2. The fifth and sixth terminals of the third analog switch IC3 are connected to the output and input terminals of the second inverter INV2, respectively. The fifth and sixth terminals of the fourth analog switch IC4 are connected to the output and input terminals of the first inverter INV1, respectively.

[0029] In a specific embodiment, both the third analog switch IC3 and the fourth analog switch IC4 can be CD4066 chips; both the first power transistor Q1 and the second power transistor Q2 can be N-channel MOSFETs; and both the second voltage regulator VCC2 and the first voltage regulator VCC1 provide DC regulated power.

[0030] Furthermore, the drive detection module 3 includes a first logic unit J1, a second logic unit J2, a first self-locking device, and a second self-locking device; Specifically, the A and B terminals of the first logic device J1 are connected to the cathode of the first diode D1 and the IO1 terminal of the first controller U1, respectively; the A and B terminals of the first logic device J1 are connected to the cathode of the second diode D2 and the IO2 terminal of the first controller U1, respectively; the Y terminals of the first logic device J1 and the second logic device J2 are connected to the input terminals of the first self-locking device and the second self-locking device, respectively; and the output terminals of the first self-locking device and the second self-locking device are connected to the IO5 and IO6 terminals of the first controller U1, respectively.

[0031] In a specific embodiment, both the first logic unit J1 and the second logic unit J2 can be XOR gates; both the first self-locking device and the second self-locking device can be composed of transistors and resistors to perform high-level self-locking processing.

[0032] The working principle of the intelligent control circuit of a beauty device of the present invention is as follows: A first square wave signal and a second square wave signal are alternately provided by the IO1 and IO2 terminals of the first controller U1. Simultaneously, the first inverter INV1 controls the third and fourth terminals of the first analog switch IC1 and the fourth analog switch IC4 to conduct. The second inverter INV2 controls the third and fourth terminals of the second analog switch IC2 and the third analog switch IC3 to conduct. This allows the first square wave signal to be transmitted through the second analog switch IC2 and trigger the third switch V3 to conduct, while the second switch V2 is turned off. At this time, the signal is transmitted through the third switch V3, the first resistor R1, the first capacitor C1, and the first transformer. B1 and the fourth switch V4 regulate and isolate the DC regulated power supplied by the first voltage regulator VCC1, completing signal conversion, isolation amplification, and outputting the first drive signal. This first drive signal is transmitted through the first diode D1 and the third analog switch IC3, triggering the first power transistor Q1 to conduct. This creates a circuit consisting of the second voltage regulator VCC2, the first power transistor Q1, the second transformer B2, and the fifth capacitor C5. The second square wave signal is transmitted through the first analog switch IC1, triggering the first switch V1 to conduct and the fourth switch V4 to turn off. This, in conjunction with the second switch V2, the first capacitor C1, the first resistor R1, and the first transformer B1, completes signal conversion, isolation amplification, and outputs the second drive signal. The output frequency of the second drive signal is the same as that of the second drive signal, but the phase is opposite. The second drive signal is transmitted by the second diode D2 and the fourth analog switch IC4 and triggers the second power transistor Q2 to conduct, so that the second voltage regulator VCC2, the fourth capacitor C4, the second transformer B2 and the second power transistor Q2 form a circuit. Then, the energy is converted through the second transformer B2 and a first radio frequency signal is provided to the cosmetic microneedle electrode. The first logic J1 detects whether the first diode D1 transmits the first drive signal when the first square wave signal is provided at the IO1 terminal of the first controller U1. If the first drive signal is not transmitted, it indicates that the first secondary side of the first transformer B1, the second resistor R2, the second capacitor C2, the first diode D1, and the fifth switch V5 are all connected. When the signal conversion path formed by the first logic unit J1 and the fourth resistor R4 malfunctions, the first logic unit J1 outputs a high level, the first self-locking device self-locks, and provides a first detection signal to the IO5 terminal of the first controller U1. Meanwhile, when the second logic unit J2 and the second self-locking device detect that the signal transmission path formed by the second secondary side of the first transformer B1, the third resistor R3, the third capacitor C3, the second diode D2, the sixth switch V6, and the fifth resistor R5 is normal, the IO4 terminal of the first controller U1 outputs a high-level signal at regular intervals, with the timing duration equal to the duration of the first square wave signal output. This triggers the conduction of the eighth and ninth terminals of the second analog switch IC2, the eighth and ninth terminals of the third analog switch IC3, and the seventh switch V7.This allows the first square wave signal to undergo signal processing and transmission through the normal signal transmission path, outputting a third drive signal to turn on the first switch V1. When the second square wave signal is output, it can undergo normal signal processing and transmission, outputting a fourth drive signal and turning on the second power transistor Q2 to provide a second radio frequency signal for the microneedle electrode. Similarly, if the second logic unit J2 and the second self-locking device detect an abnormality in the signal transmission path consisting of the second secondary side of the first transformer B1, the third resistor R3, the third capacitor C3, the second diode D2, the sixth switch V6, and the fifth resistor R5, the second self-locking device outputs a second detection signal, which is then controlled by the first controller. When the signal conversion path consisting of the first secondary side of the first transformer B1, the second resistor R2, the second capacitor C2, the first diode D1, the fifth switch V5, and the fourth resistor R4, detected by the first logic unit J1 and the first self-locking device, is normal, the IO3 terminal of the first controller U1 will periodically output a high-level signal, with the timing duration equal to the duration of the second square wave signal. This allows the first and second square wave signals to be processed sequentially through the normal signal transmission path, thereby driving the first power transistor Q1 and the second power transistor Q2 to conduct, providing a second radio frequency signal to the cosmetic microneedle electrode and maintaining its operational state.

[0033] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0034] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An intelligent control circuit for a beauty device, characterized in that, The circuit includes: The drive control module is connected to the microcontroller module and is used to perform dual-channel signal conversion on the first square wave signal and the second square wave signal provided by the microcontroller module and output two first drive signals and second drive signals with the same frequency and opposite phase respectively. By changing the signal transmission path of the first square wave signal and the second square wave signal, the first square wave signal and the second square wave signal are sequentially performed single-channel signal conversion and output third drive signals and fourth drive signals with the same frequency and phase respectively. An electrode driving module, connected to an electrode module, is used to perform energy conversion and provide a first radio frequency signal to the beauty microneedle electrode when receiving a first driving signal and a second driving signal, switch the signal transmission path, and perform energy conversion and provide a second radio frequency signal to the beauty microneedle electrode when receiving a third driving signal and a fourth driving signal. The drive detection module, connected to the drive control module, is used to self-lock and output a first detection signal when a first square wave signal is detected but a first drive signal is not detected, and to self-lock and output a second detection signal when a second square wave signal is detected but a second drive signal is not detected. The microcontroller module, connected to the electrode driving module and the driving detection module, is used to provide a first square wave signal and a second square wave signal when the cosmetic microneedle electrode needs to be driven. When the first detection signal or the second detection signal is received, the microcontroller module controls the switching duration of the signal transmission path of the driving control module and the electrode driving module according to the output duration of the first square wave signal and the second square wave signal, and disconnects the faulty signal conversion path, and controls the driving control module to perform single-channel signal conversion.

2. The intelligent control circuit of a beauty device according to claim 1, characterized in that, The drive control module includes a first analog switch, a second analog switch, a seventh switching transistor, an eighth switching transistor, a first inverter, and a second inverter; the microcontroller module includes a first controller. The fifth terminal of the first analog switch is connected to the output terminal of the first inverter and the collector of the seventh switching transistor. The input terminal of the first inverter is connected to the base of the eighth switching transistor, the sixth terminal of the first analog switch, and the IO3 terminal of the first controller. The third and eighth terminals of the first analog switch are both connected to the IO2 terminal of the first controller. The fourth terminal of the first analog switch is connected to the ninth terminal of the second analog switch. The ninth terminal of the first analog switch is connected to the fourth terminal of the second analog switch. The third and eighth terminals of the second analog switch are both connected to the IO1 terminal of the first controller. The fifth terminal of the second analog switch is connected to the output terminal of the second inverter and the collector of the eighth switching transistor. The input terminal of the second inverter is connected to the sixth terminal of the second analog switch, the base of the seventh switching transistor, and the IO4 terminal of the first controller.

3. The intelligent control circuit of a beauty device according to claim 2, characterized in that, The drive control module further includes a first voltage regulator, a first switching transistor, a second switching transistor, a third switching transistor, a fourth switching transistor, a first resistor, a first capacitor, and a first transformer; The collectors of the first and third switching transistors are both connected to a first voltage regulator. The emitter of the first switching transistor is connected to the emitter of the fourth switching transistor and then connected to the second terminal of the primary side of the first transformer via a first capacitor. The emitter of the third switching transistor is connected to the emitter of the second switching transistor and then connected to the first terminal of the primary side of the first transformer via a first resistor. The collector of the fourth switching transistor is connected to the collector of the second switching transistor and ground. The base of the first switching transistor is connected to the base of the fourth switching transistor and the fourth terminal of the first analog switch. The base of the third switching transistor is connected to the base of the second switching transistor and the ninth terminal of the first analog switch.

4. The intelligent control circuit of a beauty device according to claim 3, characterized in that, The drive control module also includes a first diode, a second capacitor, a second resistor, a fifth switching transistor, and a fourth resistor; The anode of the first diode is connected to the first terminal of the first secondary side of the first transformer and one terminal of the second capacitor, and is connected to the other terminal of the second capacitor and the base of the fifth switching transistor through the second resistor. The cathode of the first diode is connected to the emitter of the fifth switching transistor and is connected to the collector of the fifth switching transistor and the second terminal of the first secondary side of the first transformer through the fourth resistor.

5. The intelligent control circuit of a beauty device according to claim 4, characterized in that, The drive control module also includes a second diode, a third capacitor, a third resistor, a sixth switch, and a fifth resistor; The anode of the second diode is connected to the first end of the second secondary side of the first transformer and one end of the third capacitor, and is connected to the other end of the third capacitor and the base of the sixth switch through the third resistor. The collector of the sixth switch is connected to one end of the fifth resistor and the second end of the second secondary side of the first transformer. The cathode of the second diode is connected to the emitter of the fifth switch and the other end of the fifth resistor.

6. The intelligent control circuit of a beauty device according to claim 5, characterized in that, The electrode driving module includes a second voltage regulator, a fourth capacitor, a first power transistor, a second power transistor, a third analog switch, a fourth analog switch, a fifth capacitor, a second transformer, and a cosmetic microneedle electrode. The drain of the first power transistor is connected to the second voltage regulator and is connected to one end of the fifth capacitor and the first end of the primary side of the second transformer through the fourth capacitor. The source of the first power transistor is connected to the second end of the primary side of the second transformer and the drain of the second power transistor. The source of the second power transistor and the other end of the fifth capacitor are both grounded. The first and second ends of the secondary side of the second transformer are respectively connected to the first and second ends of the cosmetic microneedle electrode. The source of the first power transistor is connected to the fourth and ninth ends of the third analog switch. The gate of the second power transistor is connected to the ninth and fourth ends of the fourth analog switch. The third end of the third analog switch is connected to the eighth end of the fourth analog switch and the cathode of the first diode. The eighth end of the third analog switch is connected to the third end of the fourth analog switch and the cathode of the second diode. The fifth and sixth ends of the third analog switch are respectively connected to the output and input ends of the second inverter. The fifth and sixth ends of the fourth analog switch are respectively connected to the output and input ends of the first inverter.

7. The intelligent control circuit of a beauty device according to claim 6, characterized in that, The drive detection module includes a first logic unit, a second logic unit, a first self-locking unit, and a second self-locking unit; The A and B terminals of the first logic device are respectively connected to the cathode of the first diode and the IO1 terminal of the first controller. The A and B terminals of the first logic device are respectively connected to the cathode of the second diode and the IO2 terminal of the first controller. The Y terminals of the first and second logic devices are respectively connected to the input terminals of the first and second self-locking devices. The output terminals of the first and second self-locking devices are respectively connected to the IO5 and IO6 terminals of the first controller.

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