Control circuit of self-generating wireless switch

Abstract

The utility model discloses a control circuit of a self-generating wireless switch, which comprises a transmitting end module and a receiving end module, the transmitting end module is in communication connection with the receiving end module, and the transmitting end module comprises a generating module, an AC-to-DC module, a first voltage stabilizing module, a first master control module and a signal transmitting module; wherein the AC-to-DC module is electrically connected with the power generation module and the first voltage stabilization module, the first voltage stabilization module is electrically connected with the first master control module and the signal emission module, and the first master control module is electrically connected with the signal emission module. According to the utility model, the corresponding control signal is transmitted to the receiving end module in the lamp through the signal transmitting module, so that the lamp performs corresponding operation, such as automatic switching on and off, thereby achieving the effect of wireless switching on and off.

Description

Technical Field

[0001] The utility model relates to the field of wireless switches, in particular to a control circuit of a self-generating wireless switch. Background Art

[0002] With advances in electronic technology, various electrical appliances have become widely used in daily life, and the switchgear that controls them has also entered countless households. Switchgear is a fundamental component of electrical control. Traditional wired switches connect to the controlled devices via physical cables. While providing stable electrical connections and control performance, they have many limitations in installation, movement, and layout adjustment. This is particularly inconvenient in scenarios where frequent device relocation or layout changes are required. Utility Model Content

[0003] The technical problem to be solved by the present invention is to provide a control circuit for a self-generating wireless switch to solve the problem that the existing wired switch is relatively inconvenient to use.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: a control circuit of a self-generating wireless switch, which includes a transmitting end module and a receiving end module, the transmitting end module is communicatively connected to the receiving end module, and the transmitting end module includes a power generation module, an AC / DC converter module, a first voltage stabilizing module, a first main control module and a signal transmission module; wherein, the AC / DC converter module is electrically connected to the power generation module and the first voltage stabilizing module, respectively, the first voltage stabilizing module is electrically connected to the first main control module and the signal transmission module, and the first main control module is electrically connected to the signal transmission module.

[0005] Furthermore, in the control circuit described in the present invention, the AC-DC module includes a first diode, a second diode, a third diode and a fourth diode, wherein the first diode is connected in series with the second diode, and the third diode is connected in series with the fourth diode.

[0006] Furthermore, in the control circuit described in the present utility model, the AC-DC module also includes a sixth diode, a fourth resistor, a fifth resistor and a ninth capacitor, the sixth diode, the fourth resistor and the fifth resistor are connected in series in sequence, one end of the fifth resistor is grounded, and the ninth capacitor is connected in parallel with the fifth resistor.

[0007] Furthermore, in the control circuit described in the present invention, the first main control module includes a controller and a burning pin connected to each other, the VSS pin of the controller is grounded, the VDD pin of the controller is connected to a 3.3V voltage, the first pin of the burning pin is connected to a 3.3V voltage, and the second pin of the burning pin is grounded.

[0008] Furthermore, in the control circuit described in the present invention, the signal transmission module includes a crystal oscillator and a chip, the first pin, the second pin and the fourth pin of the crystal oscillator are grounded; the VCC pin of the chip is connected to a 3.3V voltage, and the GND pin of the chip is grounded; wherein, the third pin of the crystal oscillator is connected to the XTAL pin of the chip.

[0009] Furthermore, in the control circuit described in the present utility model, the signal transmission module also includes a connector, a second inductor, a third inductor, a seventh capacitor and an eighth capacitor, one end of the second inductor and one end of the seventh capacitor are both connected to the RFO pin of the chip, the seventh capacitor, the third inductor and the eighth capacitor are connected in series in sequence, one end of the eighth capacitor is grounded, and the connector is connected to the third inductor and the eighth capacitor respectively.

[0010] Furthermore, the control circuit described in the present invention further includes a coupling filter module, which is electrically connected to the first voltage stabilization module, and includes a fourth capacitor, a fifth capacitor, and a sixth capacitor arranged in parallel.

[0011] Furthermore, in the control circuit described in the present utility model, the first voltage stabilizing module includes a first module, the first module includes a voltage buck, a first inductor, a second resistor and a third resistor, the RUN pin and the VIN pin of the voltage buck are both connected to the AC-DC module, and the GND pin of the voltage buck is grounded; the first inductor and the second resistor are arranged in series and the two are located between the FB pin and the SW pin of the voltage buck; one end of the third resistor is respectively connected to the second resistor and the FB pin, and the other end of the third resistor is grounded.

[0012] Furthermore, in the control circuit described in the present invention, the first voltage stabilizing module also includes a second module and a third module respectively connected to the first module, the second module includes a first capacitor, a second capacitor and a fifth diode connected in parallel; the third module includes a first resistor and a third capacitor connected to each other, and one end of the third capacitor is grounded.

[0013] Furthermore, in the control circuit described in the present utility model, the receiving end module includes a rectifier and filter module, a second voltage stabilization module, a signal receiving module, a second main control module and a PWM dimming drive module, wherein one end of the rectifier and filter module is connected to the +12 / 24V input, and the other end is connected to the second voltage stabilization module, the second voltage stabilization module is electrically connected to the signal receiving module and the second main control module, and the second main control module is connected to the signal receiving module and the PWM dimming drive module.

[0014] The beneficial effect of the present invention lies in that, in the transmitter module, the AC power generated by the power generation module is input into the AC / DC converter module, thereby converting the AC power into DC power. Furthermore, a corresponding first voltage stabilization module is provided to power the first main control module and the signal transmission module. Specifically, the first voltage stabilization module converts the unstable voltage into a stable voltage, thereby providing a stable operating voltage (e.g., +3.3V) to the first main control module and the signal transmission module. After powering the signal transmission module, the signal transmission module transmits corresponding control signals to the receiver module in a device such as a lamp, thereby operating the lamp accordingly, such as turning it on or off or adjusting the brightness, thereby achieving a wireless switch effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a circuit schematic diagram of a transmitter module in a control circuit of a wireless switch according to the present invention in one embodiment;

[0016] Figure 2 This is a circuit diagram of an AC-to-DC module in a transmitter module according to the present invention in one embodiment;

[0017] Figure 3 This is a circuit diagram of the first voltage stabilizing module in the transmitter module of the present utility model in one embodiment;

[0018] Figure 4 This is a circuit diagram of a coupling filter module in a transmitter module according to the present invention in one embodiment;

[0019] Figure 5 This is a circuit diagram of the first main control module in the transmitter module of the present utility model in one embodiment;

[0020] Figure 6 This is a circuit diagram of a signal transmission module in a transmitting end module according to the present invention in one embodiment;

[0021] Figure 7 This is a circuit schematic diagram of a receiving end module in a control circuit of a wireless switch according to the present invention in one embodiment;

[0022] Figure 8 This is a circuit diagram of a rectifier and filter module and a second voltage stabilization module in a receiving end module of the utility model in one embodiment;

[0023] Figure 9 This is a circuit diagram of a signal receiving module in the receiving end module of the present invention in one embodiment;

[0024] Figure 10This is a circuit diagram of a second main control module in the receiving end module of the present utility model in one embodiment;

[0025] Figure 11 This is a circuit diagram of a PWM dimming driver module in a receiving-end module according to the present invention in one embodiment. DETAILED DESCRIPTION

[0026] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following description is given in conjunction with the embodiments and the accompanying drawings.

[0027] Please refer to Figures 1 to 11 The present invention provides a control circuit for a self-generating wireless switch, which includes a transmitting end module and a receiving end module, wherein the transmitting end module is communicatively connected to the receiving end module, and the transmitting end module includes a power generation module, an AC / DC conversion module, a first voltage stabilizing module, a first main control module, and a signal transmission module; wherein the AC / DC conversion module is electrically connected to the power generation module and the first voltage stabilizing module, respectively, the first voltage stabilizing module is electrically connected to the first main control module and the signal transmission module, and the first main control module is electrically connected to the signal transmission module.

[0028] As can be seen from the above description, the operating principle of the present invention is briefly described as follows: In the transmitter module, the AC power generated by the power generation module is input into the AC / DC converter module, thereby converting the AC power into DC power. Furthermore, a corresponding first voltage stabilization module is provided. This first voltage stabilization module converts the unstable voltage into a stable voltage, thereby providing a stable operating voltage (e.g., +3.3V) to the first main control module and the signal transmission module. This is crucial for maintaining wireless signal quality and device reliability. After power is supplied, the signal transmission module transmits corresponding control signals to the receiver module in a device such as a lamp, causing the lamp to automatically turn on and off or adjust its brightness, thereby achieving a wireless switch effect and improving the performance of the switch device. It should be noted that the power generation module can be used to convert the mechanical energy generated when pressing the switch into electrical energy. The first main control module is primarily responsible for setting the instructions and ID of the transmitted signal frame, so that different wireless switches transmit different instructions. In actual use, the first main control module generates a frame instruction and sends it to the signal transmission module, which converts the frame instruction into a 433.29 MHz wireless signal (i.e., a control signal).

[0029] Furthermore, in the control circuit described in the present invention, the signal transmission module includes a crystal oscillator X1 (such as a 26MHz crystal oscillator) and a chip U3 (such as a chip with an operating frequency of 433.92MHz), the first pin, the second pin and the fourth pin of the crystal oscillator X1 are grounded; the VCC pin of the chip U3 is connected to a 3.3V voltage, and the GND pin of the chip U3 is grounded; wherein, the third pin of the crystal oscillator X1 is connected to the XTAL pin of the chip.

[0030] Furthermore, in the control circuit described in the present utility model, the signal transmission module also includes a connector J1, a second inductor L2, a third inductor L3, a seventh capacitor C7 and an eighth capacitor C8, one end of the second inductor L2 and one end of the seventh capacitor C7 are both connected to the RFO pin of the chip U3, the other end of the second inductor L2 is connected to a 3.3V voltage, the seventh capacitor C7, the third inductor L3 and the eighth capacitor C8 are connected in series in sequence, one end of the eighth capacitor C8 is grounded, and the connector J1 is connected to the third inductor L3 and the eighth capacitor C8, respectively.

[0031] As can be seen from the above description, the signal transmission module is equipped with a corresponding 433 chip U3 (such as a 433.92MHz chip), which can be used for wireless communication. By converting digital signals into radio frequency signals and transmitting them through a wireless channel, the receiving end converts the received radio frequency signals into digital signals and outputs them. In other words, the signal transmission module can generate and transmit the corresponding 433.29MHz wireless signals.

[0032] Furthermore, in the control circuit described in the present invention, the first main control module (i.e., the main control MCU module) includes a controller U2 and a burning pin H1. The model of the controller U2 is FT60F210-URT. The VSS pin of the controller U2 is grounded, the VDD pin of the controller U2 is connected to a 3.3V voltage, and the PA4 / ELVD2 / P1B / P1A0N / CLKO / AT0 pin of the controller U2 is connected to the DATA pin of the chip U3 in the signal transmission module; the first pin of the burning pin H1 is connected to a 3.3V voltage, the second pin of the burning pin H1 is grounded, and the third pin and the fourth pin of the burning pin H1 are respectively connected to the PA0 / [P1C] / ICSPCLK pin and the CSPDAT / P1D / PA1 pin of the controller U2.

[0033] Furthermore, in the control circuit described in the present utility model, the AC-DC converter module includes a first diode D1, a second diode D2, a third diode D3, and a fourth diode D4, wherein the first diode D1 is connected in series with the second diode D2, and the third diode D3 is connected in series with the fourth diode D4. Furthermore, one end of the first diode D1 and the third diode D3 is connected to VCC and to the RUN pin and VIN pin of the voltage regulator U1 in the first voltage regulator module. One end of the second diode D2 and the fourth diode D4 is grounded.

[0034] As can be seen from the above description, a rectifier bridge consisting of four diodes is provided in the AC-DC module to achieve full-wave rectification and convert AC power into pulsating DC power.

[0035] Furthermore, in the control circuit described in the present utility model, the AC-DC module further includes a sixth diode D6, a fourth resistor R4, a fifth resistor R5, and a ninth capacitor C9, wherein the sixth diode D6, the fourth resistor R4, and the fifth resistor R5 are connected in series, respectively, with the anode of the sixth diode D6 connected to the anode of the first diode D1 and the cathode of the second diode D2, one end of the fifth resistor R5 is grounded, and the ninth capacitor C9 is connected in parallel with the fifth resistor R5. Furthermore, it should be noted that the power generation module is electrically connected to the AC-DC module. In actual applications, the output end of the power generation module will be connected to NETPORT1 and NETPORT2 of the AC-DC module.

[0036] Furthermore, the control circuit of the present invention further includes a coupling filter module electrically connected to the first voltage stabilization module. The coupling filter module includes a fourth capacitor C4, a fifth capacitor C5, and a sixth capacitor C6 connected in parallel. As can be seen from the above description, the provision of multiple capacitors reduces ripple in the rectified pulsating DC power, making the DC power smoother and providing a cleaner power source for subsequent circuits.

[0037] Furthermore, in the control circuit described in the present invention, the first voltage stabilization module includes a first module, which includes a voltage dropper U1 (e.g., an M3406-ADJ voltage dropper), a first inductor L1, a second resistor R2, and a third resistor R3. The RUN and VIN pins of the voltage dropper U1 are both connected to the AC-DC converter, and the GND pin of the voltage dropper U1 is grounded. The first inductor L1 and the second resistor R2 are arranged in series and are located between the FB and SW pins of the voltage dropper U1. One end of the third resistor R3 is connected to the second resistor R2 and the FB pin, respectively, and the other end of the third resistor R3 is grounded.

[0038] Further, in the control circuit described in the present utility model, the first voltage stabilizing module also includes a second module and a third module respectively connected to the first module, the second module is used for rectification and filtering, and includes a first capacitor C1, a second capacitor C2 and a fifth diode D5 in parallel, and the fifth diode D5 is a voltage stabilizing diode. Wherein, one end of the first capacitor C1, the second capacitor C2 and the fifth diode D5 is grounded, and the other end is connected to the RUN pin and the VIN pin in the voltage dropper U1. The third module includes a first resistor R1 and a third capacitor C3, one end of the first resistor R1 is respectively connected to the coupling filter module, one end of the second inductor L2 in the signal transmission module and the VDD pin of the controller U2 in the first main control module, the other end of the first resistor R1 is respectively connected to the +5V voltage and the third capacitor C3, and one end of the third capacitor C3 is grounded. It should be noted that the above-mentioned first capacitor C1 is an electrolytic capacitor. In addition, one end of the first inductor L1 is connected to the SW pin of the buck U1, and the other end is connected to the third module. Specifically, the other end of the first inductor L1 is respectively connected to the first resistor R1 and the third capacitor C3 in the third module.

[0039] As can be seen from the above description, a corresponding first voltage stabilizing module is provided to generate a stable +3.3V power supply, thereby providing a stable +3.3V operating voltage for the signal transmitting module and the first main control module.

[0040] Furthermore, in the control circuit described in the present invention, the receiving end module includes a rectifier filter module, a second voltage stabilizing module, a signal receiving module, a second main control module and a PWM dimming drive module, wherein one end of the rectifier filter module is connected to the +12 / 24V input and the other end is connected to the second voltage stabilizing module, the second voltage stabilizing module is electrically connected to the signal receiving module and the second main control module respectively, and the second main control module is connected to the signal receiving module and the PWM dimming drive module respectively. Figures 7 to 11 The receiving end module is used in corresponding lamps and other equipment to receive the control signal of the self-generating wireless switch, thereby realizing operations such as turning on the light and dimming. Figure 7As shown, the receiving end module includes a rectifier and filter module, a second voltage stabilizing module (i.e., a +5V voltage stabilizing module), a signal receiving module (i.e., a 433 signal receiving module), a second main control module and a PWM dimming drive module, wherein one end of the rectifier and filter module is connected to the +12 / 24V input, and the other end is connected to the second voltage stabilizing module, and the second voltage stabilizing module is electrically connected to the 433 signal receiving module and the second main control module respectively. Through the second voltage stabilizing module, the input voltage can be converted into a stable 5V to power the 433 signal receiving module and the second main control module. The above-mentioned 433 signal receiving module will also be connected to the second main control module. Through the 433 signal receiving module, the control signal (such as switch control signal, brightness adjustment control signal) sent by the wireless switch can be received. After receiving the corresponding control signal, the 433 signal receiving module will send the control signal to the second main control module. After receiving the control signal, the second main control module will generate a corresponding dimming signal and send the dimming signal to the PWM dimming driver module. The PWM dimming driver module controls the brightness (such as full dark, full bright) of the lamp (such as LED) by using a pulse width modulation (PWM) signal. In actual applications, such as Figure 11 As shown, in the on state: PWM0 is high, Q1 is on, Q2 is off, G1 is high, Q3 is on, a loop is formed between the light and GND between VCC-LED1, and the light is on; PWM0 is low, Q1 is off, Q2 is on, G1 is low, Q3 is off, the light and GND between VCC-LED1 are disconnected, and the light is off. When PWM0 changes to a waveform with a certain duty cycle, the light keeps switching between on and off, forming a brightness corresponding to the duty cycle. It should be noted that in actual applications, the circuit of the rectifier filter module and the second voltage regulator module (i.e. Figure 8 In the circuit shown, the OUT terminal of voltage regulator U1 (e.g., a CJ78L05 voltage regulator) is connected to three parallel capacitors C3, C4, and C5. The 5V voltage output by voltage regulator U1 powers the signal receiving module and the second main control module. Specifically, the OUT terminal of voltage regulator U1 is connected to the VDD5V pin of the signal receiving module and the VDD pin of chip U2 (e.g., FT60F210-URT) in the second main control module, respectively. The DATA pin of chip U3 (e.g., CMT2210LHESR) in the signal receiving module is connected to the P1C / BK0 / INT / T0CKI / PA2 pin of main control chip U2 in the second main control module. The ICSPDAT / P1D / PA1 pin and ISPCLK pin of main control chip U2 in the second main control module are connected to the fourth and third pins of programming pin H1, respectively. The PA4 / ELVD2 / P1B / P1A0N / CLKO / AT0 pin PWM0 of the main control chip U2 in the second main control module is connected to one end of R5 in the PWM dimming driver module.

[0041] Please refer to Figures 1 to 11 , Embodiment 1 of the present invention is: a control circuit for a self-generating wireless switch, which includes a transmitting end module and a receiving end module, the transmitting end module is communicatively connected to the receiving end module, the transmitting end module includes a power generation module, an AC-DC module, a first voltage stabilizing module (i.e., a +3.3V voltage stabilizing module), a first main control module, and a signal transmission module; wherein the AC-DC module is electrically connected to the power generation module and the first voltage stabilizing module respectively, the first voltage stabilizing module is electrically connected to the first main control module and the signal transmission module respectively, and the first main control module is electrically connected to the signal transmission module. The receiving end module includes a rectifier and filter module, a second voltage stabilizing module, a signal receiving module (i.e., a 433 signal receiving module), a second main control module, and a PWM dimming drive module, wherein one end of the rectifier and filter module is connected to the +12 / 24V input, and the other end is connected to the second voltage stabilizing module, the second voltage stabilizing module is electrically connected to the signal receiving module and the main control module respectively, and the second main control module is electrically connected to the signal receiving module and the PWM dimming drive module respectively, the following is combined Figures 1 to 11 The above circuit modules are introduced in detail.

[0042] In this embodiment, if Figure 2 As shown, the AC-DC module includes a first diode D1, a second diode D2, a third diode D3, a fourth diode D4, a sixth diode D6, a fourth resistor R4, a fifth resistor R5, and a ninth capacitor C9. The first diode D1 is connected in series with the second diode D2, and the third diode D3 is connected in series with the fourth diode D4. The sixth diode D6, the fourth resistor R4, and the fifth resistor R5 are connected in series in that order, with the anode of the sixth diode D6 connected to the anode of the first diode D1. One end of the fifth resistor R5 is grounded, and the ninth capacitor C9 is connected in parallel with the fifth resistor R5.

[0043] In this embodiment, if Figure 3As shown, the first voltage stabilizing module includes a first module, a second module and a third module. The first module includes a voltage regulator U1 of model M3406-ADJ, a first inductor L1, a second resistor R2 and a third resistor R3. The RUN pin and VIN pin of the voltage regulator U1 are both connected to the AC-DC module, and the GND pin of the voltage regulator U1 is grounded. The first inductor L1 and the second resistor R2 are arranged in series and both are located between the FB pin and the SW pin of the voltage regulator U1. Specifically: one end of the first inductor L1 is connected to the SW pin of the voltage regulator U1, and the other end is respectively connected to the +5V voltage and the second resistor R2. One end of the third resistor R3 is respectively connected to the second resistor R2 and the FB pin, and the other end of the third resistor R3 is grounded. The second module includes a first capacitor C1, a second capacitor C2 and a fifth diode D5 arranged in parallel; the third module includes a first resistor R1 and a third capacitor C3 connected to each other, one end of the first resistor R1 is respectively connected to the +5V voltage and the third capacitor C3, and one end of the third capacitor C3 is grounded. In this embodiment, as Figure 4 As shown, the coupling filter module includes a fourth capacitor C4, a fifth capacitor C5 and a sixth capacitor C6 which are arranged in parallel.

[0044] In this embodiment, if Figure 5 As shown, the first main control module includes controller U2 (i.e., controller model FT60F210-URT) and programming pin H1 (i.e., programming pin model HDR-F-2.54_1x4). The VSS pin of controller U2 is grounded, and the VDD pin of controller U2 is connected to 3.3V. The first pin of programming pin H1 is connected to 3.3V, the second pin of programming pin H1 is grounded, and the third and fourth pins of programming pin H1 are connected to the PA0 / [P1C] / ICSPCLK pin and CSPDAT / P1D / PA1 pin of controller U2, respectively.

[0045] In this embodiment, if Figure 6 As shown, the signal transmission module includes a crystal oscillator X1, a chip U3 (i.e., a 433.92MHz chip), a second inductor L2, a third inductor L3, a seventh capacitor C7, an eighth capacitor C8, and a connector J1 (i.e., an HDR-M-2.54_1x1 connector). The first, second, and fourth pins of the crystal oscillator X1 are grounded. The VCC pin of the chip U3 is connected to a 3.3V voltage, the GND pin of the chip U3 is grounded, the XTAL pin of the chip U3 is connected to the third pin of the crystal oscillator X1, the RFO pin of the chip U3 is connected to one end of the second inductor L2 and one end of the seventh capacitor C7, respectively. The other end of the second inductor L2 is connected to a 3.3V voltage. The seventh capacitor C7, the third inductor L3, and the eighth capacitor C8 are connected in series in sequence. One end of the eighth capacitor C8 is grounded. The connector J1 is connected to the third inductor L3 and the eighth capacitor C8, respectively.

[0046] In summary, the control circuit of the wireless switch provided by the present invention is as follows: a power generation module is connected to an AC module, the power generation module is used to convert the mechanical energy generated when the switch is pressed into electrical energy, the AC power generated by the power generation module is input into the AC-DC module, thereby converting the AC power into DC power, and then the current is rectified and filtered by the coupling filter module to make the current smoother. On this basis, a corresponding first voltage stabilizing module is provided, and the unstable voltage is converted into a stable voltage by the first voltage stabilizing module to generate a +3.3V power supply, thereby providing a stable operating voltage for the first main control module and the signal transmission module, which is crucial for maintaining the quality of the wireless signal and the reliability of the equipment. After power is supplied, the corresponding control signal is transmitted to the lamp through the signal transmission module to automatically switch the lamp on and off or adjust the brightness, thereby achieving the effect of a wireless switch. In addition, in the corresponding self-discharge wireless switch, the first main control module generates a signal frame. Pressing the button of the self-discharging wireless switch generates a start dimming instruction, and releasing it generates an end dimming instruction. The receiving end module receives the start dimming instruction. If the end dimming instruction is not received within 1 second, the receiving end module starts dimming; if the end dimming instruction is received within 500 milliseconds, the light is reversed, that is, if the current state is on, it is turned off, and if the current state is off, it is turned on.

[0047] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the description and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. A control circuit for a self-generating wireless switch, characterized in that: It includes a transmitting end module and a receiving end module, the transmitting end module is communicatively connected to the receiving end module, and the transmitting end module includes a power generation module, an AC / DC conversion module, a first voltage stabilizing module, a first main control module and a signal transmission module; wherein the AC / DC conversion module is electrically connected to the power generation module and the first voltage stabilizing module respectively, the first voltage stabilizing module is electrically connected to the first main control module and the signal transmission module respectively, and the first main control module is electrically connected to the signal transmission module.

2. The control circuit according to claim 1, wherein: The AC-DC module includes a first diode, a second diode, a third diode, and a fourth diode, wherein the first diode is connected in series with the second diode, and the third diode is connected in series with the fourth diode.

3. The control circuit according to claim 2, characterized in that: The AC-DC module further includes a sixth diode, a fourth resistor, a fifth resistor and a ninth capacitor. The sixth diode, the fourth resistor and the fifth resistor are connected in series in sequence. One end of the fifth resistor is grounded. The ninth capacitor is connected in parallel with the fifth resistor.

4. The control circuit according to claim 1, wherein: The first main control module includes a controller and a burning pin connected to each other, the VSS pin of the controller is grounded, the VDD pin of the controller is connected to a 3.3V voltage, the first pin of the burning pin is connected to a 3.3V voltage, and the second pin of the burning pin is grounded.

5. The control circuit according to claim 1, wherein: The signal transmission module includes a crystal oscillator and a chip, the first pin, the second pin and the fourth pin of the crystal oscillator are grounded; the VCC pin of the chip is connected to a 3.3V voltage, and the GND pin of the chip is grounded; wherein the third pin of the crystal oscillator is connected to the XTAL pin of the chip.

6. The control circuit according to claim 5, characterized in that: The signal transmission module also includes a connector, a second inductor, a third inductor, a seventh capacitor and an eighth capacitor, one end of the second inductor and one end of the seventh capacitor are both connected to the RFO pin of the chip, the seventh capacitor, the third inductor and the eighth capacitor are connected in series in sequence, one end of the eighth capacitor is grounded, and the connector is connected to the third inductor and the eighth capacitor respectively.

7. The control circuit according to claim 1, wherein: It also includes a coupling filter module, which is electrically connected to the first voltage stabilizing module. The coupling filter module includes a fourth capacitor, a fifth capacitor, and a sixth capacitor arranged in parallel.

8. The control circuit according to claim 1, wherein: The first voltage stabilizing module includes a first module, which includes a voltage buck, a first inductor, a second resistor and a third resistor. The RUN pin and VIN pin of the voltage buck are both connected to the AC-DC module, and the GND pin of the voltage buck is grounded; the first inductor and the second resistor are arranged in series and the two are located between the FB pin and the SW pin of the voltage buck; one end of the third resistor is respectively connected to the second resistor and the FB pin, and the other end of the third resistor is grounded.

9. The control circuit according to claim 8, characterized in that: The first voltage stabilizing module also includes a second module and a third module respectively connected to the first module, the second module includes a first capacitor, a second capacitor and a fifth diode connected in parallel; the third module includes a first resistor and a third capacitor connected to each other, and one end of the third capacitor is grounded.

10. The control circuit according to claim 1, wherein: The receiving end module includes a rectifier and filter module, a second voltage stabilization module, a signal receiving module, a second main control module and a PWM dimming drive module, wherein one end of the rectifier and filter module is connected to the +12 / 24V input, and the other end is connected to the second voltage stabilization module, the second voltage stabilization module is electrically connected to the signal receiving module and the second main control module respectively, and the second main control module is connected to the signal receiving module and the PWM dimming drive module respectively.

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