Radio frequency circuit system and beauty equipment

Abstract

The utility model provides a radio frequency circuit system and beauty equipment, and the radio frequency circuit system comprises a power module, a microcontroller, a first detection circuit, a second detection circuit, an active crystal oscillator, a power amplification circuit, a PWM signal output module, a PWM control module, and a PWM control circuit. The power supply module is respectively connected with the power amplification circuit, the PWM control module, the PWM control circuit and the microcontroller; the power amplification circuit is also connected with the first detection circuit and the active crystal oscillator; the PWM control module is also connected with the PWM signal output module and the microcontroller; the PWM control circuit is also connected with the microcontroller; the microcontroller is further connected with the first detection circuit and the second detection circuit, the microprocessor of the radio frequency circuit system can directly obtain the voltage and current phase difference of the radio frequency circuit system without using an external oscilloscope, and the measurement process is simple and convenient.

Description

Technical Field

[0001] This application relates to the field of radio frequency technology, and more particularly, to a radio frequency circuit system and a beauty device. Background Art

[0002] Currently, radio frequency circuit systems can be used as radio frequency treatment devices for wrinkle removal, ablation, skin tightening, hair removal, etc. on the body in the field of medical aesthetics. The radio frequency circuit system cannot directly obtain the voltage-current phase difference and can only obtain the voltage-current phase difference by manually operating an oscilloscope to separately measure the voltage and current waveforms, resulting in a very troublesome and inconvenient measurement process for the voltage-current phase difference of the radio frequency circuit system. Summary of the Invention

[0003] To solve the above problems, the purpose of the embodiments of this application is to provide a radio frequency circuit system and a beauty device.

[0004] In a first aspect, an embodiment of this application provides a radio frequency circuit system, including: a power supply module, a microcontroller, a first detection circuit, a second detection circuit, an active crystal oscillator, a power amplification circuit, a PWM signal output module, a PWM control module, and a PWM control circuit;

[0005] The power supply module is respectively connected to the power amplification circuit, the PWM control module, the PWM control circuit, and the microcontroller;

[0006] The power amplification circuit is further connected to the first detection circuit and the active crystal oscillator;

[0007] The PWM control module is further connected to the PWM signal output module and the microcontroller;

[0008] The PWM control circuit is further connected to the microcontroller;

[0009] The microcontroller is further connected to the first detection circuit and the second detection circuit.

[0010] In a second aspect, an embodiment of this application further provides a beauty device, including the radio frequency circuit system described in the first aspect above.

[0011] In the solutions provided in the first to second aspects of the embodiments of the present application, by setting a second detection circuit connected to the microcontroller in the radio frequency circuit system, the voltage-current phase difference of the radio frequency circuit system is detected, and the detected voltage-current phase difference is directly sent to the microprocessor. Compared with the related art in which the radio frequency circuit system cannot directly obtain the voltage-current phase difference and can only obtain the voltage-current phase difference after separately testing the voltage and current waveforms through manual operation of an oscilloscope, in the radio frequency circuit system, the microprocessor of the radio frequency circuit system can directly obtain the voltage-current phase difference of the radio frequency circuit system without using an external oscilloscope, making the measurement process of the voltage-current phase difference of the radio frequency circuit system simple and convenient.

[0012] To make the above objects, features, and advantages of the present application more obvious and understandable, the following specifically presents preferred embodiments and, in conjunction with the accompanying drawings, provides a detailed description as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following described drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0014] Figure 1 FIG. 1 shows a schematic structural diagram of a radio frequency circuit system provided by an embodiment of the present application;

[0015] Figure 2 FIG. 2 shows a schematic structural diagram of the first detection circuit and the second detection circuit provided by an embodiment of the present application;

[0016] Figure 3 FIG. 3 shows a schematic structural diagram of a PWM control module provided by an embodiment of the present application;

[0017] Figure 4 FIG. 4 shows a schematic structural diagram of a PWM signal output module provided by an embodiment of the present application. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0019] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality of" means two or more unless otherwise specifically defined.

[0020] In the present application, unless otherwise clearly specified and limited, the terms "mounted", "connected", "coupled", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0021] In order to make the above objects, features and advantages of the present application more obvious and understandable, the present application will be further described in detail below with reference to the drawings and embodiments.

[0022] Embodiment

[0023] Referring to Figure 1 A schematic structural diagram of a radio frequency circuit system as shown, in this embodiment, a radio frequency circuit system is proposed, including: a power supply module 100, a microcontroller 102, a first detection circuit 104, a second detection circuit 106, an active crystal oscillator 108, a power amplifier circuit 110, a PWM signal output module 112, a PWM control module 114, and a PWM control circuit 116.

[0024] The power supply module 100 is respectively connected to the power amplification circuit 110, the PWM control module 114, the PWM control circuit 116, and the microcontroller 102; the power amplification circuit 110 is further connected to the first detection circuit 104 and the active crystal oscillator 108; the PWM control module 114 is further connected to the PWM signal output module 112 and the microcontroller 100; the PWM control circuit 116 is further connected to the microcontroller 102; the microcontroller 102 is further connected to the first detection circuit 104 and the second detection circuit 106.

[0025] The power supply module 100 includes: a power supply device and a DC-DC converter; the power supply device is respectively connected to the DC-DC converter, the power amplification circuit 110, and the PWM control circuit 116; the DC-DC converter is further connected to the microcontroller 102.

[0026] Specifically, refer to Figure 2 the specific structural schematic diagrams of the first detection circuit and the second detection circuit shown. The first detection circuit 104 includes: a radio frequency output filter circuit 1040, an impedance matching circuit 1042, a directional coupler 1044, and a voltage-current transformer 1046.

[0027] The radio frequency output filter circuit 1040, the impedance matching circuit 1042, the directional coupler 1044, and the voltage-current transformer 1046 are connected in sequence; the radio frequency output filter circuit 1040 is further connected to the power amplification circuit 110; the voltage-current transformer 1046 is further connected to the second detection circuit 106.

[0028] Among them, the function of the impedance matching circuit 1042 is to make the load impedance completely match the characteristic impedance in the loop, so that the radio frequency power can be transmitted to the load end maximally; the function of the directional coupler 1044 is to detect the forward voltage and reverse voltage in the loop of the radio frequency circuit system; the function of the voltage-current transformer 1046 is to detect the phase difference between the voltage and current in the loop of the radio frequency circuit system.

[0029] Specifically, the second detection circuit 106 includes: a JK trigger phase discriminator filter circuit 1060 and a zero-crossing comparator circuit 1062.

[0030] The JK trigger phase discriminator filter circuit 1060 is respectively connected to the zero-crossing comparator circuit 1062 and the microcontroller 102.

[0031] The zero-crossing comparator circuit 1062 is further connected to the voltage-current transformer 1046.

[0032] The zero-crossing comparator circuit obtains the phase difference between the voltages and currents detected by the voltage-current transformer 1046, and then sends the phase difference between the voltages and currents to the JK trigger phase discriminator filtering circuit for processing to obtain an analog voltage signal. Then, the JK trigger phase discriminator filtering circuit sends the obtained analog voltage signal to the microprocessor 102. The test is accurate and the operation is convenient, and it is especially suitable for application in a radio frequency circuit system.

[0033] The PWM control module 114 is configured to provide a reference power supply to the power amplifier circuit 110 and generate a PWM1 modulation signal to control the radio frequency output mode.

[0034] In the radio frequency circuit system proposed in this embodiment, refer to Figure 3 the structural schematic diagram of the PWM control module shown. The PWM control module 114 includes: a first capacitor C1, a second capacitor C2, a third capacitor C3, a fourth capacitor C4, a fifth capacitor C5, a sixth capacitor C6, a seventh capacitor C7, a first chip U1, a second chip U2, a first voltage source VDD1, a second voltage source VDD2, a third voltage source VDD3, a fourth voltage source VDD4, a first diode D1, a second diode D2, a third diode D3, a first triode Q1, a second triode Q2, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, and a fifth resistor R5.

[0035] One end of the first capacitor C1 is respectively connected to the power supply device, the input end of the first chip U1, the second capacitor C2, and one end of the second diode D2; the first capacitor C1, the ground terminal of the first chip U1, and the second capacitor C2 are respectively grounded; the output end of the first chip U1 is respectively connected to the other end of the second diode D2, the third capacitor C3, the fourth capacitor C4, the fifth capacitor C5, one end of the first diode D1, and the input end of the second chip U2; the third capacitor C3, the fourth capacitor C4, the fifth capacitor C5, and the ground terminal of the second chip U2 are respectively grounded; the fourth capacitor C4 is also connected to the first voltage source VDD1; the other end of the first diode D1, the sixth capacitor C6, the seventh capacitor C7, the first triode Q1, and the third diode D3 are respectively connected; the seventh capacitor C7 is also connected to the second voltage source VDD2; the sixth capacitor C6 and the seventh capacitor C7 are also respectively grounded; the other end of the third diode D3 and the first triode Q1 are respectively connected to the third voltage source VDD3; the first resistor R1 is respectively connected to the microcontroller 102, the PWM signal output module 112, the second resistor R2, and the second triode Q2; the second resistor R2, the second triode Q2, the fourth resistor R4, and the fifth resistor R5 are respectively grounded; the third resistor R3 is respectively connected to the fourth voltage source VDD4, the first triode Q1, the second triode Q2, and the fourth resistor R4; the fifth resistor R5 is also respectively connected to the first triode Q1, the third diode Q3, and the third voltage source VDD3.

[0036] Among them, the first capacitor C1 receives a 24-volt (V) DC voltage emitted by the power supply device.

[0037] The first voltage source VDD1 and the fourth voltage source VDD4 provide 9V DC power; the second voltage source VDD2 and the third voltage source VDD3 provide 5V DC power.

[0038] The main function of the PWM signal output module 112 is to control the radio frequency signal output mode, and it controls the radio frequency output mode by outputting a PWM1 modulation signal (4Hz 80% duty cycle) through the control module 108.

[0039] Specifically, in the radio frequency circuit system proposed in this embodiment, refer to Figure 4Schematic diagram of the structure of the PWM signal output module shown, the PWM signal output module 112 includes: the eighth capacitor C8, the sixth resistor R6, the seventh resistor R7, the eighth resistor R8, the ninth resistor R9, the tenth resistor R10, the eleventh resistor R11, the twelfth resistor R12, the third chip U3, the fourth chip U4, the fifth voltage source VDD5, the sixth voltage source VDD6, the seventh voltage source VDD7, and the third triode Q3.

[0040] The sixth resistor R6 is respectively connected to the microcontroller 102, the seventh resistor R7, and the third triode Q3; the seventh resistor R7 and the third triode Q3 are also grounded; the third triode Q3 is also connected to the third chip U3; the third chip U3 is also respectively connected to the eighth resistor R8, the ninth resistor R9, the eleventh resistor R11, and the twelfth resistor R12; the eighth resistor R8 is also grounded; the ninth resistor R9 is also connected to the positive input terminal of the fourth chip U4; the eleventh resistor R11 is also connected to the sixth voltage source VDD6; the twelfth resistor R12 is also connected to the fifth voltage source VDD5; the ground terminal of the fourth chip U4 is grounded, the negative input terminal and the output terminal of the fourth chip U4 are respectively connected to the sixth resistor R6 of the PWM control module 114, and the power supply terminal of the fourth chip U4 is connected to the seventh voltage source VDD7 through the tenth resistor R10; one end of the eighth capacitor C8 is connected to the power supply terminal of the fourth chip U4, and the other end is grounded.

[0041] Among them, the fifth voltage source VDD5 provides 3V direct current; the sixth voltage source VDD6 and the seventh voltage source VDD7 provide 5V direct current.

[0042] Specifically, the power supply device converts the input mains electricity (alternating current) into direct current and supplies it to the entire radio frequency circuit system, and the magnitude of the voltage output by the power supply device can be adjusted through the PWM control circuit. The voltage output by the power supply device is supplied to the power amplifier circuit 110.

[0043] The DC-DC converter converts the 24V voltage into 5V voltage and the 5V voltage into 3.3V voltage to supply power to the microprocessor 102 and other circuits, and electrically isolates the microprocessor 102 and other circuits from the power supply device.

[0044] The microprocessor 102 is the core processing module of the entire radio frequency circuit system.

[0045] The active crystal oscillator 108 provides a signal source for the power amplifier circuit 110.

[0046] The power amplifier circuit 110 amplifies the radio frequency signal (sinusoidal wave signal) emitted by the active crystal oscillator 108 to provide power for the subsequent radio frequency output.

[0047] The PWM control circuit 116 is used to adjust the output voltage of the power supply device so as to adjust the output energy of the subsequent radio frequency.

[0048] This embodiment also provides a beauty device, including the above radio frequency circuit system.

[0049] In summary, this embodiment provides a radio frequency circuit system and a beauty device. By setting a second detection circuit connected to the microcontroller in the radio frequency circuit system, the voltage-current phase difference of the radio frequency circuit system is detected, and the detected voltage-current phase difference is directly sent to the microprocessor. Compared with the related art in which the radio frequency circuit system cannot directly obtain the voltage-current phase difference and can only obtain the voltage-current phase difference after separately testing the voltage and current waveforms through manual operation of an oscilloscope, in the radio frequency circuit system, the microprocessor of the radio frequency circuit system can directly obtain the voltage-current phase difference of the radio frequency circuit system without using an external oscilloscope, making the measurement process of the voltage-current phase difference of the radio frequency circuit system simple and convenient.

[0050] The above is only the specific implementation manner of this application, but the protection scope of this application is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed in this application, and all should be covered by the protection scope of this application. Therefore, the protection scope of this application should be subject to the protection scope of the claimed rights.

Claims

1. A radio frequency circuit system, characterized in that: include: A power supply module, a microcontroller, a first detection circuit, a second detection circuit, an active crystal oscillator, a power amplifier circuit, a PWM signal output module, a PWM control module and a PWM control circuit; The power supply module is connected to the power amplifier circuit, the PWM control module, the PWM control circuit, and the microcontroller respectively; The power amplifier circuit is also connected to the first detection circuit and the active crystal oscillator; The PWM control module is also connected to the PWM signal output module and the microcontroller; The PWM control circuit is also connected to the microcontroller; The microcontroller is also connected to the first detection circuit and the second detection circuit.

2. The radio frequency circuit system according to claim 1, characterized in that: The power module comprises: a power supply device and a DC-to-DC converter; The power supply device is respectively connected to the DC-to-DC converter, the power amplifier circuit, and the PWM control circuit; The DC-to-DC converter is also connected to the microcontroller.

3. The radio frequency circuit system according to claim 1, characterized in that: The first detection circuit includes: a radio frequency output filter circuit, an impedance matching circuit, a directional coupler and a voltage and current transformer; The radio frequency output filter circuit, the impedance matching circuit, the directional coupler and the voltage and current transformer are connected in sequence; The radio frequency output filter circuit is also connected to the power amplifier circuit; The voltage and current transformer is also connected to the second detection circuit.

4. The radio frequency circuit system according to claim 3, characterized in that: The second detection circuit comprises: a JK trigger phase detector filter circuit and a zero-crossing comparator circuit; The JK triggered phase detector filter circuit is connected to the zero-crossing comparator circuit and the microcontroller respectively; The zero-crossing comparator circuit is also connected to the voltage and current transformer.

5. The radio frequency circuit system according to claim 2, characterized in that: The PWM control module includes: a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor, a sixth capacitor, a seventh capacitor, a first chip, a second chip, a first voltage source, a second voltage source, a third voltage source, a fourth voltage source, a first diode, a second diode, a third diode, a first transistor, a second transistor, a first resistor, a second resistor, a third resistor, a fourth resistor and a fifth resistor; One end of the first capacitor is respectively connected to the power supply device, the input end of the first chip, the second capacitor, and one end of the second diode; The first capacitor, the ground terminal of the first chip, and the second capacitor are grounded respectively; The output end of the first chip is respectively connected to the other end of the second diode, the third capacitor, the fourth capacitor, the fifth capacitor, one end of the first diode and the input end of the second chip; The third capacitor, the fourth capacitor, the fifth capacitor and the grounding terminal of the second chip are grounded respectively; the fourth capacitor is also connected to the first voltage source; The other end of the first diode, the sixth capacitor, the seventh capacitor, the first transistor, and the third diode are connected respectively; the seventh capacitor is also connected to the second voltage source; The sixth capacitor and the seventh capacitor are also grounded respectively; The other end of the third diode and the first transistor are respectively connected to the third voltage source; The first resistor is respectively connected to the microcontroller, the PWM signal output module, the second resistor and the second transistor; The second resistor, the second transistor, the fourth resistor, and the fifth resistor are grounded respectively; The third resistor is connected to the fourth voltage source, the first transistor, the second transistor, and the fourth resistor respectively; The fifth resistor is also connected to the first transistor, the third diode and the third voltage source respectively.

6. The radio frequency circuit system according to claim 1, characterized in that: The PWM signal output module includes: an eighth capacitor, a sixth resistor, a seventh resistor, an eighth resistor, a ninth resistor, a tenth resistor, an eleventh resistor, a twelfth resistor, a third chip, a fourth chip, a fifth voltage source, a sixth voltage source, a seventh voltage source, and a third transistor; The sixth resistor is connected to the microcontroller, the seventh resistor, and the third transistor respectively; The seventh resistor and the third transistor are also grounded; The third transistor is also connected to the third chip; The third chip is also connected to the eighth resistor, the ninth resistor, the eleventh resistor, and the twelfth resistor respectively; The eighth resistor is also grounded; The ninth resistor is also connected to the positive input terminal of the fourth chip; The eleventh resistor is also connected to the sixth voltage source; The twelfth resistor is also connected to the fifth voltage source; The ground terminal of the fourth chip is grounded, the negative input terminal and the output terminal of the fourth chip are respectively connected to the sixth resistor of the PWM control module, and the power supply terminal of the fourth chip is connected to the seventh voltage source through the tenth resistor; One end of the eighth capacitor is connected to the power supply end of the fourth chip, and the other end is grounded.

7. A beauty device, characterized in that: A radio frequency circuit system comprising any one of claims 1 to 6.

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