An LED lamp circuit that realizes thyristor dimming and switch color temperature adjustment

Abstract

The present invention discloses an LED lamp circuit for realizing thyristor dimming and switch color temperature adjustment, which overcomes the problem that the LED dimming and color temperature adjustment circuit in the prior art requires 3 or more connecting wires to realize color temperature switching, the circuit is complex, the cost is high, and the terminal control is required, and the operation is complicated. The circuit includes a thyristor dimming power supply module connected to an external DC power supply, a color temperature switching switch module that outputs different voltage signals to a color temperature switch control module through a switching switch, a wireless module that outputs analog signals to the color temperature switch control module, and a color temperature switch control module that controls the on and off of the LED lamp and the brightness. Through this invention, the brightness and color temperature of the LED lamp can be adjusted at the same time, and the LED dimming and color temperature adjustment can be realized by only adjusting the switch, without terminal control, and the operation difficulty is low. At the same time, the control circuit uses 2 connecting wires instead of the color temperature switching that can only be realized by traditional LED driving 3 or more, which reduces the difficulty of circuit design and saves costs.

Description

Technical Field

[0001] The invention relates to the technical field of LED lamps, and in particular to an LED lamp circuit for realizing silicon-controlled dimming and switch color temperature adjustment. Background Art

[0002] With the improvement of LED application technology, the dimming of a single lamp or the color temperature of a single lamp can no longer meet people's needs. Instead, people are pursuing more diversified, more convenient, and versatile dimming and color temperature downlights. The emergence of a lamp with adjustable brightness and color temperature not only optimizes the cost of materials and personnel on the manufacturing side, but also facilitates inventory preparation on the sales side and improves the user experience. At present, the market uses control devices such as wifi / bluetooth to adjust power, dimming and color, which is costly and cumbersome for user operation, bringing many unknown problems to the application side.

[0003] For example, on December 16, 2015, the Chinese Patent Office disclosed a utility model entitled "an LED power supply supporting dimming and color temperature adjustment", and its publication number is CN204887649U. The utility model includes a power drive module, a drive control module and a wireless control module; the power drive module is connected to the drive control module and the wireless control module respectively, and the wireless control module is wirelessly connected to the drive control module. The utility model adopts an integrated drive and control design, with a compact structure, easy installation and lower cost; it is directly controlled by WiFi or Bluetooth, supports access to its own Internet of Things platform, and can realize the remote dimming and color temperature adjustment function controlled by mobile terminals such as mobile phones, no external dimming controller is required, and no additional controller or gateway-type equipment is required, so that traditional LED lamps can realize dimming and color adjustment functions through mobile terminals such as mobile phones without any modification, and can support remote control and management across the public network. The disadvantage is that its circuit is complex, the implementation cost is high, and the switch needs to rely on a control terminal, which is complex to control. Summary of the invention

[0004] The purpose of the present invention is to overcome the problems in the prior art that the circuit for simultaneously dimming and adjusting the color temperature of LEDs requires three or more connecting wires to achieve color temperature switching, the circuit is complex, the cost is high, terminal control is required, and the operation is complicated. An LED lamp circuit that realizes thyristor dimming and switch color temperature adjustment is provided, which can simultaneously adjust the brightness and color temperature of the LED lamp. Only the switch needs to be adjusted, and the LED dimming and color temperature adjustment can be achieved without terminal control. The operation difficulty is low. At the same time, the control circuit is connected by two core wires, that is, two wires are used to realize the color temperature control circuit that is traditionally realized by three or more connecting wires, which reduces the design difficulty and saves costs.

[0005] In order to achieve the above object, the present invention adopts the following technical solution: an LED lamp circuit for realizing thyristor dimming and switch color temperature adjustment, comprising:

[0006] Thyristor dimming power supply module: used to connect to an external DC power supply, filter out interference in the voltage, output a stable DC voltage, and dim the LED lamp;

[0007] Color temperature switching module: output different voltage signals to the color temperature switch control module through the switching switch;

[0008] Wireless module: output analog signal to color temperature switch control module;

[0009] Color temperature switch control module: used to convert the received external voltage signal into a PWM signal, connect the LED lamp through a two-core wire, and control the brightness and color temperature of the LED lamp;

[0010] LED component module: includes several groups of two-way LED light-emitting components with different color temperatures, used to achieve brightness and color temperature changes;

[0011] The color temperature switch control module includes:

[0012] MCU power supply circuit: suppresses output high-frequency noise and outputs a clean 5V output voltage;

[0013] Ripple suppression circuit: receives the voltage of the thyristor dimming power module and suppresses the received voltage and current ripples to reduce the interference of voltage ripples on the MCU power supply and reduce the flickering phenomenon caused by output current fluctuations at the low end of dimming;

[0014] Analog to PWM signal circuit: receives the voltage signal from the color temperature switch module and the analog signal from the wireless module, and converts them into PWM signals;

[0015] Signal conversion and LED drive circuit: receives the PWM signal from the analog to PWM signal circuit and the voltage signal from the ripple suppression circuit, connects the LED lamp through a two-core wire, and controls the brightness and color temperature of the LED lamp.

[0016] The input end of the thyristor dimming power module is connected to the power supply, converting the received electricity into pulsed direct current with a direct current component and filtering out the AC component in the pulsed direct current to output a stable direct current voltage. The output end of the thyristor dimming module is connected to the input end of the ripple suppression circuit to transmit the voltage to the ripple suppression circuit. The ripple suppression circuit suppresses the received voltage and current ripples, reduces the interference of the voltage ripple on the MCU power supply, and reduces the flicker caused by the output current fluctuation when dimming at the low end. The MCU power supply circuit suppresses the output high-frequency noise and outputs a clean 5V output voltage. The input end of the MCU power supply circuit is connected to the output end of the ripple suppression circuit, and the output end of the MCU power supply circuit is connected to the input end of the color temperature switching switch module, the power input end of the analog to PWM signal circuit, and the input end of the wireless module to provide these modules with a stable 5V voltage. The input end of the analog-to-PWM signal circuit is connected to the output end of the color temperature switching switch module and the output end of the wireless module respectively. The color temperature control module outputs different voltages to the analog-to-PWM signal circuit through switch switching. The wireless module outputs an analog signal to the analog-to-PWM signal circuit. The analog-to-PWM signal circuit receives an external voltage signal and converts the analog signal into a PWM signal, and outputs a complementary PWM signal to the signal conversion and LED driving circuit. The power input end of the signal conversion and LED driving circuit is connected to the output end of the ripple suppression circuit, and the signal input end of the signal conversion and LED driving circuit is connected to the signal output end of the analog-to-PWM signal circuit. The signal conversion and LED driving circuit receives the PWM signal from the analog-to-PWM signal circuit to control the LED light. The present invention outputs voltages of different sizes by switching the switch, and converts the voltage into a PWM signal, and uses the PWM signal to control the LED light, that is, by changing the size of the PWM signal to be different, the brightness of the LED light is different, thereby achieving color temperature adjustment. And through signal conversion and LED driving circuit, the LED component module can work continuously at different times, but the power supply part is used alternately, thereby saving the third common line, and the output end of the signal conversion and LED driving circuit is connected to the LED component module through a two-core output connecting line.

[0017] Preferably, the wireless module comprises:

[0018] Wireless control module: output PWM signal to PWM to analog signal module;

[0019] PWM to analog signal module: receives the PWM signal from the wireless control module, converts it into an analog signal, and sends the analog signal to the analog to PWM signal circuit.

[0020] The wireless module supports wireless receiving signals such as WIFI, ZIGBEE, and Bluetooth, and can output PWM signals to the PWM to analog signal circuit. The PWM to analog signal circuit converts the received PWM signals into analog signals, and outputs the obtained analog signals to the analog to PWM signal circuit module.

[0021] Preferably, the thyristor dimming power supply module comprises:

[0022] EMI filter circuit, lightning surge circuit, drive circuit, resistor R8, MOS tube Q6, resistor R4, resistor R5, resistor R9, capacitor C3, capacitor C4 and diode D1 form a primary rectifier filter circuit, capacitor C5 and diode D2 form a secondary rectifier filter circuit and transformer T1; the EMI filter circuit input end is connected to the power supply, the EMI filter circuit output end is connected to the lightning surge circuit input end, the lightning surge circuit output end is connected to one end of resistor R8; one end of resistor R8 is connected to the opposite end of the primary winding of transformer T1, and the other end of resistor R8 is connected to the start end of the drive circuit; the drive circuit compensation end is connected to one end of capacitor C3, and the other end of capacitor C3 is grounded; the drive circuit output end is connected to the gate of MOS tube Q6, and the drain of MOS tube Q6 is connected to The same-name end of the primary winding of the transformer T1 is connected, and the source of the MOS tube Q6 is grounded; the feedback end of the driving circuit is connected to one end of the resistor R4, and the other end of the resistor R4 is connected to the same-name end of the auxiliary winding of the transformer T1, and the opposite-name end of the auxiliary winding is grounded; the timing resistor end of the driving circuit is connected to one end of the resistor R9, and the other end of the resistor R9 is grounded; one end of the capacitor C4 is connected to the input end of the driving circuit, and the other end of the capacitor C4 is grounded; one end of the resistor R5 is connected to the feedback end of the driving circuit, and the other end of the resistor R5 is grounded; the positive electrode of the diode D1 is connected to the same-name end of the auxiliary winding, and the other end of the diode D1 is connected to the input end of the driving circuit; the positive electrode of the diode D2 is connected to the same-name end of the secondary winding of the transformer T1, the negative electrode of the diode D2 is connected to one end of the capacitor C5, and the other end of the capacitor C5 is connected to the opposite-name end of the secondary winding of the transformer T1.

[0023] EMI filter circuit is electromagnetic interference filter circuit. Electromagnetic interference filter can be used to suppress electromagnetic interference, effectively filter out the frequency point of a specific frequency or the frequency point outside the frequency point, obtain the required effective signal, keep the noise generated inside the electronic equipment from leaking out, and prevent the noise generated by the AC line outside the electronic equipment from entering the equipment. The lightning surge circuit includes a bridge filter to reduce the interference and damage caused by lightning strikes or impulse overvoltage; the drive circuit can use a flyback controller to convert AC power into stable, isolated DC power to supply the application system. When working, resistor R8 detects the tangential waveform input to the drive circuit through the input voltage, MOS tube Q6 passively receives the output switch signal of the drive circuit and stores electromagnetic energy with the primary winding of transformer T1 and converts the energy to the secondary winding for energy release; the auxiliary winding of transformer T1 couples the secondary winding energy, which is rectified by diode D1 and filtered by capacitor C4 to supply the drive circuit for operation; resistor R4 and resistor R5 are combined to pull up and down to divide the voltage, and the output voltage is detected (OVP), and the signal is fed back to the feedback end of the drive circuit; resistor R9 pulls down to set the switching frequency of the drive circuit; capacitor C3 is bypassed, and the current is set to follow the input voltage amplitude through the compensation end of the drive circuit to adjust the current harmonics and PF value of the power supply; diode D2 and capacitor C5 form the transformer secondary rectification and filtering circuit.

[0024] Preferably, the ripple suppression circuit comprises:

[0025] Capacitor CD1, resistor RS4, resistor RS4, diode Z2, diode DS1, diode Z3, diode Z4, capacitor CS2 and MOS tube Q1, one end of capacitor CD1 is grounded, the other end of capacitor CD1 is connected to the positive electrode of diode Z2, the negative electrode of diode Z2 is connected to the negative electrode of diode DS1, the positive electrode of diode DS1 is connected to the drain of MOS tube Q1; one end of resistor RS4 is connected to the negative electrode of diode DS1, the other end of resistor RS4 is connected to the drain of MOS tube Q1; the drain of MOS tube Q1 is connected to the output end of the thyristor dimming power module, the gate of MOS tube Q1 is connected to one end of resistor RS3, the other end of resistor RS3 is connected to the positive electrode of diode Z3, the source of MOS tube Q1 is connected to one end of capacitor CS2, and the other end of capacitor CS2 is connected to the gate of MOS tube Q1.

[0026] The output end of the thyristor dimming power module is the cathode of the diode D2, and the MOS tube Q1 is preferably an N-MOS tube. A parasitic diode can also be connected to the MOS tube Q1, and the anode of the parasitic diode is connected to the source of the MOS tube Q1, and the cathode of the parasitic diode is connected to the drain of the MOS tube Q1. When a large instantaneous reverse current is generated in the circuit, it can be led out through the parasitic diode to protect the drain and source of the MOS tube. Resistors RS4 and RS3 are current limiting resistors, and diode Z2 is a voltage stabilizing diode. The ripple suppression circuit suppresses the output voltage and current ripples, reduces the interference of the voltage ripple on the MCU power supply circuit, and reduces the flickering phenomenon caused by the output current fluctuation when dimming at the low end. MOS tube Q1 is connected in series to the output positive electrode, and the resistor RS4, the diode DS1, and the diode Z2 form the MOS tube Q1 power supply circuit. The capacitor CD1 filters the input voltage, the current limiting resistor RS3 limits the current, and the filter capacitor CS2 buffers the MOS tube Q1 on and off oscillation; when the voltage from the thyristor dimming power supply is input through the input end, the MOS tube Q1 passes through the above power supply circuit, delays the start, and at the same time, the ripple voltage is componented, thereby suppressing the output voltage and current ripple.

[0027] Preferably, the MCU power supply circuit comprises:

[0028] Three-terminal voltage regulator U1, diode D6, capacitor C2 and capacitor C1, the input end of the three-terminal voltage regulator U1 is connected to the cathode of the diode D6, the anode of the diode D6 is connected to the output end of the ripple suppression circuit, the common end of the three-terminal voltage regulator U1 is grounded, the output end of the three-terminal voltage regulator U1 is connected to one end of the capacitor C1, and the other end of the capacitor C1 is grounded; one end of the capacitor C2 is connected to the output end of the three-terminal voltage regulator U1, and the other end of the capacitor C2 is grounded. The three-terminal voltage regulator is a fixed three-terminal voltage regulator with a fixed output voltage of 5V. The output end of the ripple suppression circuit is the source of the MOS tube Q1. When working, the diode D6 and the capacitor C2 form a rectifier and filter circuit, and the 28-40V voltage from the ripple suppression circuit outputs a 5V clean output working voltage through the three-terminal voltage regulator U1 system, and the capacitor C1 suppresses the output high-frequency noise. The MCU power supply circuit outputs a 5V stable voltage to the color temperature switching module, the wireless module and the analog to PWM signal circuit to provide them with working power.

[0029] Preferably, the analog-to-PWM signal circuit comprises:

[0030] It includes a resistor RS1, a resistor RS2, a capacitor CS1, a diode Z1 and a signal converter US1. One end of the resistor RS1 is connected to the output end of the MCU power supply circuit, the other end of the resistor RS1 is connected to one end of the resistor RS2, and the other end of the resistor RS2 is connected to the 8th pin of the signal converter US1, that is, the power input end; one end of the capacitor CS1 is connected to the 8th pin of the signal converter US1, that is, the power input end, and the other end of the capacitor CS1 is grounded; one end of the diode Z1 is connected to the 8th pin of the signal converter US1, that is, the power input end, and the other end of the diode Z1 is grounded.

[0031] The signal converter US1 is an analog conversion PWM signal converter. The 5th pin of the signal converter US1 is the low end, the 3rd pin is the signal input end, the 6th pin is the PWMA output end, and the 7th pin is the PWMB output end. The signal converter US1 receives an external 0-5V voltage signal through the 3rd pin, and outputs a complementary PWM signal through the 7th pin and the 6th pin. PWM is pulse width modulation, which is an analog control method. It modulates the bias of the transistor base or the MOS tube gate according to the change of the corresponding load to achieve the change of the transistor or MOS tube conduction time, thereby achieving the change of the output of the switching regulated power supply. The diode Z1 is preferably a voltage-stabilizing diode. The resistor RS1 and the resistor RS2 are current-limiting resistors, which are used to limit the size of the branch current to prevent the current from being too large and burning the components connected in series. At the same time, the current-limiting resistor also plays a voltage-dividing role. The capacitor CS1 is a filter capacitor for filtering noise.

[0032] Preferably, the signal conversion and LED driving circuit includes four pairs of MOS tubes, and each two pairs of MOS tubes form a combination, and the two combinations are opened and closed respectively to form an H-bridge circuit. The general design will use 1 common anode and 2 negative poles; or 1 common cathode and 2 anodes with a total of 3 connecting wires. The present invention uses an H-bridge circuit formed by a combination of two groups of MOS tubes to realize the lighting of two lamp beads separately. Because the duty cycle is different, the current of the two LED lamps is different, thereby realizing color temperature modulation.

[0033] Preferably, the signal conversion and LED driving circuit comprises:

[0034] MOS tube Q2, MOS tube Q3, MOS tube Q4, MOS tube Q5, resistor R1, resistor R2, resistor R6 and resistor R7, the drain of MOS tube Q2 is connected to the output end of the ripple suppression circuit, the gate of MOS tube Q2 is connected to the gate of MOS tube Q5, the source of MOS tube Q2 is connected to the drain of MOS tube Q4; the drain of MOS tube Q3 is connected to the output end of the ripple suppression circuit, the source of MOS tube Q3 is connected to the drain of MOS tube Q5, the gate of MOS tube Q3 is connected to the gate of MOS tube Q4; the drain of MOS tube Q4 is connected to the LED component module through core wire 1 , the source of MOS tube Q4 is grounded; the drain of MOS tube Q5 is connected to the LED component module through core wire 2, and the source of MOS tube Q5 is grounded; one end of resistor R1 is connected to the PWMA output end of the analog-to-PWM signal circuit, and the other end of resistor R1 is connected to the gate of MOS tube Q2; one end of resistor R2 is connected to the gate of MOS tube Q2, and the other end of resistor R2 is grounded; one end of resistor R6 is connected to the PWMB output end of the analog-to-PWM signal circuit, and the other end of resistor R6 is connected to the gate of MOS tube Q4; one end of resistor R7 is connected to the gate of MOS tube Q4, and the other end of resistor R7 is grounded.

[0035] Resistors R1 and R6 are MOS drive current limiting resistors, and resistors R2 and R7 are MOS drive discharge resistors. The signal conversion and LED drive circuit receives the PWM signal from the analog to PWM signal circuit and the voltage of the ripple suppression circuit, and controls the brightness of the LED lamp in the LED component module through the action of four MOS tubes, thereby achieving color temperature adjustment. PWMA and PWMB are complementary signals; support i+j composed of wired switches to control the output of PWMA and PWMB of the microcontroller with ADC port; support wireless control signal output PWMA and PWMB. The MOS tube is preferably an N-MOS tube.

[0036] Preferably, the color temperature switching module comprises:

[0037] Six-way rotary switch SW1, resistor RS5, resistor RS6, resistor RS7 and resistor RS8, the common end of the six-way rotary switch SW1 is connected to the signal input end of the analog-to-PWM signal circuit; pin 5 of the six-way rotary switch SW1 is connected to one end of the resistor RS5, and the other end of the resistor RS5 is grounded; pin 4 of the six-way rotary switch SW1 is connected to one end of the resistor RS6, and the other end of the resistor RS6 is grounded; pin 3 of the six-way rotary switch SW1 is connected to one end of the resistor RS7, and the other end of the resistor RS7 is grounded; pin 2 of the six-way rotary switch SW1 is connected to one end of the resistor RS7, one end of the resistor RS8 is connected to the output end of the MCU power supply circuit, and the other end of the resistor RS8 is connected to the common end of the six-way rotary switch SW1.

[0038] The output end of the color temperature switching switch module is the common end of the six-way knob switch SW1. Resistors RS5, RS6, RS7 and RS8 are pull-down resistors. Corresponding to the switch position, different pull-down blocking resistors are turned on, and different voltages are output through the output end to the signal input end of the signal converter US1.

[0039] Preferably, in the LED component module, each group of LED light-emitting components includes two LED lamps, one of which includes a plurality of LED-Ws, and the other includes the same number of LED-Cs, and the LED-Ws and LED-Cs are synchronously connected in parallel but with reverse polarity.

[0040] When PWMA is at a high level, PWMB is at a low level, MOS tubes Q2 and Q5 are turned on, MOS tubes Q3 and Q4 are turned off, and the voltage passes through the MOS tubes through core line 1 to LED-W, and then passes through core line 2 to MOS tube Q5 to form a loop, lighting up LED-W; when PWMB is at a high level, PWMA is at a low level, MOS tubes Q3 and Q4 are turned on, MOS tubes Q2 and Q5 are turned off, and the voltage passes through MOS tube Q3 from core line 2 to LED-C, and then passes through core line 1 to MOS tube Q4 to form a loop, lighting up LED-C; and so on. At the same time, by changing the size of the PWMA and PWMB signals through the switch, the brightness of the two LEDs is determined to be different, so that the effect of adjusting the color temperature can be achieved at the same time.

[0041] Therefore, the present invention has the following beneficial effects: 1. The color temperature and brightness can be adjusted simultaneously through ordinary switches and thyristor dimmers, which meets the user's various needs for light and is convenient; 2. The control circuit part is changed from the traditional 3-core output connection line to a 2-core output connection line, which reduces the design difficulty and saves material costs; 3. When the end user uses it in different occasions, there are personalized color temperature and brightness options, and there are multiple choices as long as you buy one lamp; 4. It is convenient for the manufacturing end to prepare materials, and materials for multiple color temperature lamps only need to be prepared for one lamp, which optimizes the cost of the whole machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 It is a circuit principle structure block diagram of the present invention;

[0043] Figure 2 It is a schematic diagram of a PWM signal-to-analog signal waveform of the present invention;

[0044] Figure 3 It is a circuit diagram of a thyristor dimming power supply module of the present invention;

[0045] Figure 4 is a circuit diagram of a ripple suppression circuit of the present invention;

[0046] Figure 5 It is a circuit diagram of an MCU power supply circuit of the present invention;

[0047] Figure 6 It is a circuit diagram of an analog to PWM signal conversion circuit of the present invention;

[0048] Figure 7 It is a schematic diagram of converting an analog signal into a PWM signal waveform of the present invention;

[0049] Figure 8 It is a circuit diagram of a signal conversion and LED driving circuit of the present invention;

[0050] Fig. 9 It is a circuit diagram of a color temperature switching switch module of the present invention;

[0051] Fig.10 It is a circuit diagram of an LED assembly module of the present invention;

[0052] Fig.11 Schematic diagram of the switch on and off waveforms of the present invention;

[0053] Figure (a) is a waveform diagram of the single LED-C lighting up in the first gear of the switch;

[0054] Figure (b) is a waveform diagram of the switch in the 2nd / 3rd / 4th / …nth position, with two LEDs lighting up at the same time;

[0055] Figure (c) is a waveform diagram of the last position of the switch, with a single LED-W lit;

[0056] In the figure: 1. Thyristor dimming power supply module; 2. Color temperature switching module; 3. LED component module; 4. Color temperature switch control module; 5. Color temperature switching switch module; 6. Wireless module; 7. Ripple suppression circuit; 8. MCU power supply circuit; 9. Analog to PWM signal circuit; 10. Signal conversion and LED drive circuit; 11. Primary rectifier and filter circuit; 12. Secondary rectifier and filter circuit; 13. Wireless control module; 14. PWM to analog signal module. DETAILED DESCRIPTION

[0057] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments:

[0058] This embodiment is a LED lamp circuit that realizes thyristor dimming and switch color temperature adjustment. Figure 1As shown, the circuit principle structure block diagram is: it includes a thyristor dimming power supply module 1, a color temperature switching module 2, and an LED component module 3. The color temperature switching module 2 includes a color temperature switch control module 4, a color temperature switching switch module 5, and a wireless module 6; the color temperature switch control module 4 includes a ripple suppression circuit 7, an MCU power supply circuit 8, an analog to PWM signal circuit 9, a signal conversion and LED drive circuit 10, and the wireless module 6 includes a wireless control module 13 and a PWM to analog signal module 14.

[0059] The input end of the thyristor dimming power supply module 1 is connected to the power supply, and the output end of the thyristor dimming power supply module 1 is connected to the input end of the ripple suppression circuit 7; the thyristor dimming power supply module 1 is used to connect an external DC power supply, filter out interference in the voltage, and output a stable DC voltage. The output end of the ripple suppression circuit 7 is respectively connected to the input end of the MCU power supply circuit 8 and the power input end of the signal conversion and LED drive circuit 10; the ripple suppression circuit 7 receives the voltage of the thyristor dimming power supply module 1, and suppresses the received voltage and current ripples, reduces the interference of the voltage ripple on the MCU power supply, and reduces the flickering phenomenon caused by the output current fluctuation when dimming at the low end. The output end of the MCU power supply circuit 8 is respectively connected to the power input end of the analog to PWM signal circuit 9, the input end of the color temperature switching switch module 5, and the input end of the wireless control module 13; the MCU power supply circuit 8 suppresses the output high-frequency noise and outputs a clean working voltage of 5V. The output end of the color temperature switching switch module 5 is connected to the signal input end of the analog to PWM signal circuit 9, and outputs different voltage signals to the color temperature switch control module through the switching switch. The output end of the wireless control module 13 is connected to the input end of the PWM to analog signal module 14, and the PWM signal is output to the PWM to analog signal module; the output end of the PWM to analog signal module 14 is connected to the signal input end of the analog to PWM signal circuit 9, receives the PWM signal of the wireless control module 13, and converts it into an analog signal, and sends the analog signal to the analog to PWM signal circuit. The waveform diagram of the PWM signal to analog signal is as follows Figure 2 The signal output end of the analog to PWM signal circuit 9 is connected to the signal input end of the signal conversion and LED drive circuit 10, and the signal output end of the signal conversion and LED drive circuit 10 is connected to the input end of the LED component module 3 through a two-core wire.

[0060] like Figure 3As shown, the circuit diagram of the thyristor dimming power supply module 1 includes a primary rectifier filter circuit 11, a secondary rectifier filter circuit 12 and a transformer T1. The primary rectifier filter circuit 11 includes an EMI filter circuit, a lightning surge circuit, a drive circuit, a resistor R8, a MOS tube Q6, a resistor R3, a resistor R4, a resistor R5, a resistor R9, a capacitor C3, a capacitor C4 and a diode D1. The input end of the EMI filter circuit is connected to the power supply, the output end of the EMI filter circuit is connected to the input end of the lightning surge circuit, and the output end of the lightning surge circuit is connected to one end of the resistor R8; one end of the resistor R8 is connected to the opposite end of the primary winding of the transformer T1, and the other end of the resistor R8 is connected to the starting end of the drive circuit; the compensation end of the drive circuit is connected to one end of the capacitor C3, and the other end of the capacitor C1 is grounded; the input end of the drive circuit is connected to one end of the capacitor C4, and the other end of the capacitor C4 is connected to the cathode of the diode D1, and the anode of the diode D1 is connected to The same-name end of the auxiliary winding of the transformer T1 is connected; the output end of the drive circuit is connected to the gate of the MOS tube Q6, the drain of the MOS tube Q6 is connected to the same-name end of the primary winding, the source of the MOS tube Q6 is connected to one end of the resistor R9, and the other end of the resistor R9 is connected to the timing resistor end of the drive circuit; the feedback end of the drive circuit is connected to one end of the resistor R4, the other end of the resistor R4 is connected to the same-name end of the auxiliary winding, and the opposite-name end of the auxiliary winding is grounded; one end of the resistor R5 is connected to the feedback end of the drive circuit, the other end of the resistor R5 is connected to the source of the MOS tube Q6, one end of the resistor R3 is connected to the source of the MOS tube Q6, and the other end of the resistor R3 is grounded; the secondary rectifier and filter circuit 12 includes a capacitor C5 and a diode D2, the positive electrode of the diode D2 is connected to the same-name end of the secondary winding of the transformer T1, the negative electrode of the diode D2 is connected to one end of the capacitor C5, the other end of the capacitor C5 is connected to the opposite-name end of the secondary winding, and the opposite-name end of the secondary winding is grounded. When working, resistor R8 detects the tangential waveform input to the drive circuit through the input voltage, MOS tube Q6 passively receives the output switch signal of the drive circuit and stores electromagnetic energy with the primary winding of transformer T1 and converts the energy to the secondary winding for energy release; the auxiliary winding of transformer T1 couples the secondary winding energy, which is rectified by diode D1 and filtered by capacitor C4 to supply the drive circuit; resistor R4 and resistor R5 are combined to pull up and down to divide the voltage, and the output voltage is detected (OVP), and the signal is fed back to the feedback end of the drive circuit; resistor R9 pulls down to set the switching frequency of the drive circuit; capacitor C3 is bypassed, and the current is set to follow the input voltage amplitude through the compensation end of the drive circuit to adjust the current harmonics and PF value of the power supply.

[0061] like Figure 4As shown, the circuit diagram of the ripple suppression circuit 7 includes a capacitor CD1, a filter capacitor CS2, a current limiting resistor RS3, a current limiting resistor RS4, a diode DS1, a voltage regulator diode Z2, a voltage regulator diode Z3, a voltage regulator diode Z4 and a MOS tube Q1, one end of the capacitor CD1 is grounded, the other end of the capacitor CD1 is connected to the positive electrode of the voltage regulator diode Z2, the negative electrode of the voltage regulator diode Z2 is connected to the negative electrode of the diode DS1, and the positive electrode of the diode DS1 is connected to the drain of the MOS tube Q1; one end of the current limiting resistor RS4 is connected to the negative electrode of the diode DS1, and the other end of the current limiting resistor RS4 is connected to the negative electrode of the diode DS1. The ends are respectively connected to the output end of the thyristor dimming power module 1 and the drain of the MOS tube Q1; one end of the current limiting resistor RS3 is connected to the positive electrode of the voltage-limiting diode Z2, and the other end of the current limiting resistor RS3 is connected to the gate of the MOS tube Q1; the negative electrode of the voltage-limiting diode Z3 is connected to the gate of the MOS tube Q1, the positive electrode of the voltage-limiting diode Z3 is connected to the positive electrode of the voltage-limiting diode Z4, and the negative electrode of the voltage-limiting diode Z4 is connected to the source of the MOS tube Q1; one end of the filter capacitor CS2 is connected to the gate of the MOS tube Q1, and the other end of the filter capacitor CS2 is connected to the source of the MOS tube Q1. A parasitic diode is also connected to the MOS tube Q1, the positive electrode of the parasitic diode is connected to the source of the MOS tube Q1, and the negative electrode of the parasitic diode is connected to the drain of the MOS tube Q1. MOS tube Q1 is connected in series to the positive electrode of the output. The current limiting resistor RS4, the diode DS1, and the voltage stabilizing diode Z2 form the power supply circuit of MOS tube Q1. The capacitor CD1 filters the input voltage. The current limiting resistor RS3 limits the current. The filter capacitor CS2 buffers the on-off oscillation of MOS tube Q1. When the voltage is input through the input end, MOS tube Q1 passes through the above power supply circuit, delays the start, and at the same time, the ripple voltage is rectified, thereby suppressing the output voltage and current ripple.

[0062] like Figure 5 As shown, the circuit diagram of the MCU power supply circuit 8 is as follows: it includes a diode D6, a capacitor C1, a capacitor C2 and a three-terminal voltage regulator U1, the positive electrode of the diode D6 is connected to the output end of the ripple suppression circuit 7, and the negative electrode of the diode D6 is connected to the input end of the three-terminal voltage regulator U1; one end of the capacitor C2 is connected to the input end of the three-terminal voltage regulator U1, and the other end of the capacitor C2 is grounded; one end of the capacitor C1 is grounded, and the other end of the capacitor C1 is connected to the output end of the three-terminal voltage regulator U1; the common end of the three-terminal voltage regulator U1 is grounded. When working, the diode D6 and the capacitor C2 form a rectifier and filter circuit, and the 28-40V voltage outputs a 5V clean output working voltage through the three-terminal voltage regulator U1 system, and the capacitor C1 suppresses the output high-frequency noise.

[0063] like Figure 6As shown, the circuit diagram of the analog-to-PWM signal circuit is as follows: it includes a current limiting resistor RS1, a current limiting resistor RS2, a voltage zener diode Z1, a filter capacitor CS1 and a signal converter US1, one end of the current limiting resistor RS1 is connected to the output end of the MCU power supply circuit, the other end of the current limiting resistor RS1 is connected to one end of the current limiting resistor RS2, and the other end of the current limiting resistor RS2 is connected to the 8th pin of the signal converter US1, i.e., the power input end; the cathode of the voltage zener diode Z1 is connected to the power input end of the signal converter US1, and the anode of the voltage zener diode Z1 is grounded; one end of the filter capacitor CS1 is connected to the cathode of the voltage zener diode Z1, and the other end of the filter capacitor CS1 is grounded; the ground end of the signal converter US1 is grounded, the signal input end of the signal converter US1 is respectively connected to the output end of the color temperature switching switch module 5 and the output end of the wireless module 6, and the PWMB end and PWMA end of the signal converter US1 are connected to the PWM signal input end of the signal conversion and LED drive circuit 10. Signal converter US1 is an analog-to-PWM signal converter. It receives an external 0-5V voltage signal through the input terminal and outputs complementary PWM signals through the two pins PWMB and PWMA. The waveform diagram of its analog signal to PWM signal is shown in the figure below. Figure 7 As shown. Current limiting resistors RS1 and RS2 are used to limit the current in the branch to prevent excessive current from burning out the components in series. At the same time, the current limiting resistors also play a voltage divider role, and filter capacitor CS1 filters out noise.

[0064] like Figure 8As shown, the circuit diagram of the signal conversion and LED driving circuit is as follows: including a resistor R1, a MOS resistor R6, a resistor R2, a resistor R7, a MOS transistor Q2, a MOS transistor Q3, a MOS transistor Q4 and a MOS transistor Q5, one end of the MOS driving current limiting resistor R1 is connected to the PWMA end of the signal converter US1, and the other end of the MOS driving current limiting resistor R1 is connected to the gate of the MOS transistor Q5; one end of the MOS driving current limiting resistor R6 is connected to the PWMB end of the signal converter US1, and the other end of the MOS driving current limiting resistor R6 is connected to the gate of the MOS transistor Q4; one end of the MOS driving discharge resistor R2 is connected to the gate of the MOS transistor Q2, and the other end of the MOS driving discharge resistor R2 is grounded; one end of the MOS driving discharge resistor R7 is connected to the gate of the MOS transistor Q4 , the other end of the MOS driving discharge resistor R7 is grounded; the gate of the MOS tube Q2 is connected to the gate of the MOS tube Q5, the source of the MOS tube Q2 is connected to the LED component module 3 through the OUTPUT1 interface, and the drain of the MOS tube Q2 is connected to the output end of the ripple suppression circuit 7; the drain of the MOS tube Q3 is connected to the output end of the ripple suppression circuit 7, the gate of the MOS tube Q3 is connected to the gate of the MOS tube Q4, and the source of the MOS tube Q3 is connected to the LED component module 3 through the OUTPUT2 interface; the drain of the MOS tube Q4 is connected to the LED component module 3 through the OUTPUT1 interface, and the source of the MOS tube Q4 is grounded; the drain of the MOS tube Q5 is connected to the LED component module 3 through the OUTPUT2 interface, and the source of the MOS tube Q5 is grounded. Resistors R1 and R6 are MOS tube driving current limiting resistors, and resistors R2 and R7 are MOS tube driving discharge resistors; the signal conversion and LED driving circuit 10 receives the PWM signal from the analog to PWM signal circuit 10, and controls the brightness of the LED lamp in the LED component module 3 through the action of four MOS tubes, thereby achieving color temperature adjustment.

[0065] like Fig. 9As shown, the circuit diagram of the color temperature switching switch module is as follows: it includes a pull-down resistor RS5, a pull-down resistor RS6, a pull-down resistor RS7, a pull-down resistor RS8 and a six-way rotary switch SW1, one end of the pull-down resistor RS5 is connected to the 5th pin of the six-way rotary switch SW1, and the other end of the pull-down resistor RS5 is grounded; one end of the pull-down resistor RS6 is connected to the 4th pin of the six-way rotary switch SW1, and the other end of the pull-down resistor RS6 is grounded; one end of the pull-down resistor RS7 is connected to the power supply, and the other end of the pull-down resistor RS7 is connected to one end of the pull-down resistor RS8, and the other end of the pull-down resistor RS7 is connected to the common end of the six-way rotary switch SW1, and the common end of the six-way rotary switch SW1 is connected to the 3rd pin of the signal converter US1 in the analog to PWM signal circuit 9, i.e., the signal input end. The pull-down resistors RS5, RS6, RS7 and RS8 correspond to the switch positions, turn on different pull-down blocking resistors, and output different voltages to the input end of the signal converter through the output end.

[0066] like Fig.10 As shown, the circuit diagram of the LED component module is as follows: it includes two groups of two-way LED light-emitting components with different color temperatures, each group of LED light-emitting components includes three LED-W lamps and three LED-C lamps, LED-W and LED-C are synchronously connected in parallel but with reverse polarity. One group of LED light-emitting components includes LED-W1, LED-W3, LED-W5 and LED-C3, LED-C5, LED-C7; one group of LED light-emitting components includes LED-W2, LED-W4, LED-W6 and LED-C4, LED-C6, LED-C8; the LED component module also includes resistor R10, resistor R11 and resistor R12. One end of resistor R10 is connected to the OUTPUT1 interface, and the other end of resistor R10 is connected to the positive electrode of LED-W1, the negative electrode of LED-W1 is connected to the positive electrode of LED-W3, the negative electrode of LED-W3 is connected to the positive electrode of LED-W5, and the negative electrode of LED-W5 is connected to the OUTPUT2 interface. The positive electrode of LED-C7 is connected to the OUTPUT2 interface, the negative electrode of LED-C7 is connected to the positive electrode of LED-C5, the negative electrode of LED-C5 is connected to the positive electrode of LED-C3, and the negative electrode of LED-C3 is connected to the positive electrode of LED-W1. One end of resistor R11 is connected to the OUTPUT1 interface, and the other end of resistor R11 is connected to the positive electrode of LED-C7. One end of resistor R12 is connected to the OUTPUT1 interface, and the other end of resistor R12 is connected to the positive electrode of LED-W2, the negative electrode of LED-W2 is connected to the positive electrode of LED-W4, the negative electrode of LED-W4 is connected to the positive electrode of LED-W6, and the negative electrode of LED-W6 is connected to the OUTPUT2 interface. The positive electrode of LED-C8 is connected to the OUTPUT2 interface, the negative electrode of LED-C8 is connected to the positive electrode of LED-C6, the negative electrode of LED-C6 is connected to the positive electrode of LED-C2, and the negative electrode of LED-C2 is connected to the positive electrode of LED-W3.

[0067] When PWMA is at a high level, PWMB is at a low level, MOS tubes Q2 and MOS tubes Q5 are turned on, MOS tubes Q3 and MOS tubes Q4 are turned off, and the voltage reaches LED-W through the MOS tube via core line 1, and then reaches MOS tube Q5 via core line 2 to form a loop, lighting up LED-W; when PWMB is at a high level, PWMA is at a low level, MOS tubes Q3 and MOS tubes Q4 are turned on, MOS tubes Q2 and MOS tubes Q5 are turned off, and the voltage reaches LED-C from core line 2 via MOS tube Q3, and then reaches MOS tube Q4 from core line 1 to form a loop, lighting up LED-C; and so on.

[0068] like Fig.11 As shown, the schematic diagram of the switch on and off waveform is: The schematic diagram of the six-way knob switch on and off waveform is: Figure (a) is the first gear of the switch, a single LED-C is lit, the PWM single cycle T=T1+T2=T3+T4<50 microseconds, the LED-C duty cycle is 100%, and the LED-W duty cycle is 0.

[0069] Figure (b) shows the switch in the 2nd / 3rd / 4th / …nth gear, with 2 LEDs lit up at the same time, PWM single cycle T=T1+T2=T3+T4<50 microseconds, T1a+T2a=T1+T2<50 microseconds, LED-C duty cycle T1a / (T1+T2)%, LED-W duty cycle T2a / (T1+T2)%.

[0070] Figure (c) shows the last gear of the switch, where a single LED-W is lit, the PWM single cycle T=T1+T2=T3+T4<50 microseconds, the duty cycle of LED-C is 0, and the duty cycle of LED-W is 100%.

[0071] The above-described embodiment is only a preferred solution of the present invention and does not limit the present invention in any form. There are other variations and modifications without exceeding the technical solution described in the claims.

Claims

1. An LED lamp circuit that realizes thyristor dimming and switch color temperature adjustment, characterized in that: include: Silicon controlled rectifier dimming power supply module (1): used to connect to an external DC power supply, filter out interference in the voltage, output a stable DC voltage, and dim the LED lamp; Color temperature switching module (5): outputs different voltage signals to the color temperature switch control module through the switching switch; it includes a six-way knob switch, in which one group of LED lights are lit in the first gear, two groups of LED lights are lit at the same time in the second / 3rd / 4th / …nth gear, and another group of LED lights are lit in the last gear, and the PWM single cycle is less than 50us; Wireless module (6): outputs analog signals to the color temperature switch control module; Color temperature switch control module (4): used to convert the received external voltage signal into a PWM signal, connect the LED lamp via a two-core wire, and control the brightness and color temperature change of the LED lamp; LED component module (3): comprising a plurality of groups of two-way LED light-emitting components with different color temperatures, used to achieve brightness and color temperature changes; The color temperature switch control module (4) comprises: MCU power supply circuit (8): suppresses output high-frequency noise and outputs a clean 5V output voltage; Ripple suppression circuit (7): receives the voltage of the thyristor dimming power module and suppresses the received voltage and current ripples to reduce the interference of voltage ripples on the MCU power supply and reduce the flickering phenomenon caused by output current fluctuations at the low end of dimming; Analog to PWM signal circuit (9): receives the voltage signal from the color temperature switching module and the analog signal from the wireless module, and converts them into a PWM signal; The signal conversion and LED driving circuit (10) comprises an H-bridge circuit formed by combining two groups of MOS tubes, receiving a PWM signal from an analog-to-PWM signal circuit and a voltage signal from a ripple suppression circuit, connecting two groups of LED lamps via a two-core wire, and controlling the brightness and color temperature of the LED lamps.

2. The LED lamp circuit for realizing thyristor dimming and switch color temperature adjustment according to claim 1, characterized in that: The wireless module (6) comprises: Wireless control module (13): outputs PWM signal to PWM to analog signal module; PWM to analog signal module (14): receives the PWM signal from the wireless control module, converts it into an analog signal, and sends the analog signal to the analog to PWM signal circuit.

3. The LED lamp circuit for realizing thyristor dimming and switch color temperature adjustment according to claim 1, characterized in that: The thyristor dimming power supply module (1) comprises: An EMI filter circuit, a lightning surge circuit, a drive circuit, a resistor R8, a MOS tube Q6, a resistor R4, a resistor R5, a resistor R9, a capacitor C3, a capacitor C4 and a diode D1, which form a primary rectifier filter circuit (11), a capacitor C5 and a diode D2, which form a secondary rectifier filter circuit (12) and a transformer T1; an EMI filter circuit input end is connected to a power supply, an EMI filter circuit output end is connected to an input end of the lightning surge circuit, and an output end of the lightning surge circuit is connected to one end of the resistor R8; one end of the resistor R8 is connected to an opposite-name end of the primary winding of the transformer T1, and the other end of the resistor R8 is connected to a start end of the drive circuit; a drive circuit compensation end is connected to one end of the capacitor C3, and the other end of the capacitor C3 is grounded; an output end of the drive circuit is connected to a gate of the MOS tube Q6, and the MOS tube Q6 is connected to a ground. The drain of is connected to the same-name end of the primary winding of the transformer T1, and the source of the MOS tube Q6 is grounded; the feedback end of the driving circuit is connected to one end of the resistor R4, the other end of the resistor R4 is connected to the same-name end of the auxiliary winding of the transformer T1, and the opposite-name end of the auxiliary winding is grounded; the timing resistor end of the driving circuit is connected to one end of the resistor R9, and the other end of the resistor R9 is grounded; one end of the capacitor C4 is connected to the input end of the driving circuit, and the other end of the capacitor C4 is grounded; one end of the resistor R5 is connected to the feedback end of the driving circuit, and the other end of the resistor R5 is grounded; the positive electrode of the diode D1 is connected to the same-name end of the auxiliary winding, and the other end of the diode D1 is connected to the input end of the driving circuit; the positive electrode of the diode D2 is connected to the same-name end of the secondary winding of the transformer T1, the negative electrode of the diode D2 is connected to one end of the capacitor C5, and the other end of the capacitor C5 is connected to the opposite-name end of the secondary winding of the transformer T1.

4. The LED lamp circuit for realizing thyristor dimming and switch color temperature adjustment according to claim 1, characterized in that: The ripple suppression circuit (7) comprises: A capacitor CD1, a resistor RS3, a resistor RS4, a diode Z2, a diode DS1, a diode Z3, a diode Z4, a capacitor CS2 and a MOS tube Q1, wherein one end of the capacitor CD1 is grounded, the other end of the capacitor CD1 is connected to the positive electrode of the diode Z2, the negative electrode of the diode Z2 is connected to the negative electrode of the diode DS1, and the positive electrode of the diode DS1 is connected to the drain of the MOS tube Q1; one end of the resistor RS4 is connected to the negative electrode of the diode DS1, and the other end of the resistor RS4 is connected to the drain of the MOS tube Q1; the drain of the MOS tube Q1 is connected to the output end of the thyristor dimming power supply module (1), the gate of the MOS tube Q1 is connected to one end of the resistor RS3, the other end of the resistor RS3 is connected to the positive electrode of the diode Z3, the source of the MOS tube Q1 is connected to one end of the capacitor CS2, and the other end of the capacitor CS2 is connected to the gate of the MOS tube Q1.

5. The LED lamp circuit for realizing thyristor dimming and switch color temperature adjustment according to claim 1, characterized in that: The MCU power supply circuit (8) comprises: A three-terminal voltage regulator U1, a diode D6, a capacitor C2 and a capacitor C1, wherein the input terminal of the three-terminal voltage regulator U1 is connected to the cathode of the diode D6, the anode of the diode D6 is connected to the output terminal of the ripple suppression circuit (7), the common terminal of the three-terminal voltage regulator U1 is grounded, the output terminal of the three-terminal voltage regulator U1 is connected to one terminal of the capacitor C1, and the other terminal of the capacitor C1 is grounded; one terminal of the capacitor C2 is connected to the output terminal of the three-terminal voltage regulator U1, and the other terminal of the capacitor C2 is grounded.

6. The LED lamp circuit for realizing thyristor dimming and switch color temperature adjustment according to claim 1, characterized in that: The analog to PWM signal circuit (9) comprises: The device comprises a resistor RS1, a resistor RS2, a capacitor CS1, a diode Z1 and a signal converter US1, wherein one end of the resistor RS1 is connected to the output end of the MCU power supply circuit (8), the other end of the resistor RS1 is connected to one end of the resistor RS2, and the other end of the resistor RS2 is connected to the 8th pin of the signal converter US1, i.e., the power input end; one end of the capacitor CS1 is connected to the 8th pin of the signal converter US1, i.e., the power input end, and the other end of the capacitor CS1 is grounded; one end of the diode Z1 is connected to the 8th pin of the signal converter US1, i.e., the power input end, and the other end of the diode Z1 is grounded.

7. The LED lamp circuit for realizing thyristor dimming and switch color temperature adjustment according to claim 1, characterized in that: The signal conversion and LED driving circuit (10) comprises four pairs of MOS tubes, each two pairs of MOS tubes form a combination, and the two combinations are respectively turned on and off to form an H-bridge circuit.

8. The LED lamp circuit for realizing thyristor dimming and switch color temperature adjustment according to claim 7, characterized in that: The signal conversion and LED driving circuit (10) comprises: MOS tube Q2, MOS tube Q3, MOS tube Q4, MOS tube Q5, resistor R1, resistor R2, resistor R6 and resistor R7, the drain of MOS tube Q2 is connected to the output end of the ripple suppression circuit (7), the gate of MOS tube Q2 is connected to the gate of MOS tube Q5, the source of MOS tube Q2 is connected to the drain of MOS tube Q4; the drain of MOS tube Q3 is connected to the output end of the ripple suppression circuit (7), the source of MOS tube Q3 is connected to the drain of MOS tube Q5, the gate of MOS tube Q3 is connected to the gate of MOS tube Q4; the drain of MOS tube Q4 is connected to the LED component module through core wire 1 , the source of the MOS tube Q4 is grounded; the drain of the MOS tube Q5 is connected to the LED component module through the core wire 2, and the source of the MOS tube Q5 is grounded; one end of the resistor R1 is connected to the PWMA output end of the analog-to-PWM signal circuit (9), and the other end of the resistor R1 is connected to the gate of the MOS tube Q2; one end of the resistor R2 is connected to the gate of the MOS tube Q2, and the other end of the resistor R2 is grounded; one end of the resistor R6 is connected to the PWMB output end of the analog-to-PWM signal circuit (9), and the other end of the resistor R6 is connected to the gate of the MOS tube Q4; one end of the resistor R7 is connected to the gate of the MOS tube Q4, and the other end of the resistor R7 is grounded.

9. The LED lamp circuit for realizing thyristor dimming and switch color temperature adjustment according to claim 1, characterized in that: The color temperature switching module (5) comprises: A six-way rotary switch SW1, a resistor RS5, a resistor RS6, a resistor RS7 and a resistor RS8, wherein the common end of the six-way rotary switch SW1 is connected to the signal input end of the analog-to-PWM signal circuit (9); pin 5 of the six-way rotary switch SW1 is connected to one end of the resistor RS5, and the other end of the resistor RS5 is grounded; pin 4 of the six-way rotary switch SW1 is connected to one end of the resistor RS6, and the other end of the resistor RS6 is grounded; pin 3 of the six-way rotary switch SW1 is connected to one end of the resistor RS7, and the other end of the resistor RS7 is grounded; pin 2 of the six-way rotary switch SW1 is connected to one end of the resistor RS7, one end of the resistor RS8 is connected to the output end of the MCU power supply circuit (8), and the other end of the resistor RS8 is connected to the common end of the six-way rotary switch SW1.

10. The LED lamp circuit for realizing thyristor dimming and switch color temperature adjustment according to claim 1, characterized in that: In the LED component module (3), each group of LED light-emitting components includes two LED lamps, one of which includes a plurality of LED-Ws, and the other includes the same number of LED-Cs, wherein the LED-Ws and LED-Cs are synchronously connected in parallel but have reverse polarity.

Images