CN215121275U

CN215121275U - Control circuit of 0-10V light modulator

Info

Publication number: CN215121275U
Application number: CN202120939777.XU
Authority: CN
Inventors: 苏福地; 涂联楸; 余伯阳; 张文龙
Original assignee: Xiamen Tenia Lighting & Electrical Co ltd
Current assignee: Xiamen Tenia Lighting & Electrical Co ltd
Priority date: 2021-04-30
Filing date: 2021-04-30
Publication date: 2021-12-10
Anticipated expiration: 2031-04-30

Abstract

The utility model discloses a control circuit of 0-10V light modulator, its characterized in that: the device comprises a single live wire power supply circuit, an MCU control circuit, a power supply signal detection circuit, a signal regulation detection circuit, an optical coupling isolator, a 0-10V signal control circuit and a switch; the input of the single live wire power supply circuit is connected with the single live wire, and the output of the single live wire power supply circuit is connected with the load through the switch; the single-live-wire power taking circuit is connected with a power supply signal access end of the MCU control circuit, the input of the MCU control circuit is respectively connected with the power supply signal detection circuit and the signal regulation detection circuit, and the input of the power supply signal detection circuit is connected between the switch and the load; the MCU control circuit is connected with the 0-10V signal control circuit through the optical coupling isolator. The utility model discloses both can realize the nimble adjustment that 0-10V voltage signal changes, can realize 0V output again when signal conditioning arrives the lower extreme, the drawback that the lamp still can keep the light state when having eliminated prior art's signal conditioning arrives the lower extreme.

Description

Control circuit of 0-10V light modulator

Technical Field

The utility model relates to a light modulator technical field especially relates to a control circuit of 0-10V light modulator.

Background

A dimmer is an electrical device that varies the luminous flux of a light source in a lighting device, adjusting the level of illumination. The 0-10V dimmer is a dimmer which changes the output current of a power supply and adjusts the brightness of the light through the voltage change of 0-10V. The dimming modes of the 0-10V dimmer in the prior art are divided into a zero-live line power supply mode and a single-live line power supply mode, and the single-live line power supply mode adopts discrete devices to control 0-10V output, fig. 1 is a schematic diagram of a control circuit of the 0-10V dimmer in the single-live line power supply mode in the prior art, which mainly comprises electronic components such as a potentiometer VR1, a potentiometer VR2, a potentiometer VR3, a triode Q1, a triode Q2, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a resistor R2, a capacitor C1, a capacitor C2, a diode D1, and the like, and the control circuit of the 0-10V dimmer has the disadvantages that:

1. the change of the voltage signal of 0-10V can not be adjusted flexibly;

2. when the signal is adjusted to the lowest end, the signal can only be adjusted to about 0.6V and cannot be adjusted to 0V, so that some lamps can still keep on-off states.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art not enough, provide a control circuit of 0-10V light modulator, through circuit structure's improvement, both can realize the nimble adjustment of 0-10V voltage signal change, can realize 0V output again when the signal conditioning arrives the lower, the drawback that the lamp still can keep the light state when having eliminated prior art's signal conditioning arrives the lower.

The utility model provides a technical scheme that its technical problem adopted is: a control circuit of a 0-10V dimmer comprises a single live wire power supply circuit, an MCU control circuit, a power supply signal detection circuit, a signal regulation detection circuit, an optical coupler isolator, a 0-10V signal control circuit and a switch; the input end of the single live wire power taking circuit is connected with the single live wire, and the output end of the single live wire power taking circuit is connected with a load through the switch; the single live wire power taking circuit is connected with a power supply signal access end of the MCU control circuit, the input of the MCU control circuit is respectively connected with the power supply signal detection circuit and the signal regulation detection circuit, and the input of the power supply signal detection circuit is connected between the switch and the load; the MCU control circuit is connected with the 0-10V signal control circuit through an optical coupling isolator.

The single-live-wire power taking circuit comprises an MOS (metal oxide semiconductor) tube Q10, a triode Q11, an integrated operational amplifier U10 and a three-terminal regulator U21; one end of the MOS transistor Q10 is connected to a single live wire, and the other end of the MOS transistor Q10 is connected to the switch; the grid electrode of the MOS tube Q10 is respectively connected to the base electrode of the triode Q11 and the output end of the integrated operational amplifier U10; the three-terminal regulator U21 is connected to the other end of the MOS transistor Q10.

The single-live-wire power taking circuit further comprises a diode D10, a diode D13, a capacitor CE21, a capacitor CE22, a resistor R10, a resistor R11, a resistor R13, a resistor R14 and a resistor R15; the anode of the diode D10 is connected to the other end of the MOS transistor Q10, the cathode of the diode D10 is connected to the anode of the diode D13, the cathode of the diode D13 is connected to the input end of the three-terminal regulator U21, and the capacitor CE21 and the capacitor CE22 are respectively connected between the input end and the output end of the three-terminal regulator U21 and the common ground; the gate of the MOS transistor Q10 is connected to the base of the triode Q11 through the resistor R10 and the resistor R11, and the gate of the MOS transistor Q10 is connected to the output end of the integrated operational amplifier U10 through the resistor R10; the emitter of the triode Q11 is connected with the common ground, the collector of the triode Q11 is connected to the 3.3V voltage end through a resistor R13 and a resistor R14, the inverting input end of the integrated operational amplifier U10 is connected to the 3.3V voltage end through a resistor R14, and the non-inverting input end of the integrated operational amplifier U10 is connected to the common ground through a resistor R15.

The single live wire power taking circuit further comprises a diode D14, a resistor R17 and a capacitor C11; the resistor R17 and the capacitor C11 are connected in parallel, one end of the resistor R17 is connected to the connection position between the grid of the MOS transistor Q10 and the resistor R10, and the other end of the resistor R17 is connected to a common ground end; the anode of the diode D14 is connected to one end of the MOS transistor Q10, and the cathode of the diode D14 is connected to the other end of the MOS transistor Q10.

The single-live-wire power taking circuit further comprises a diode D11, a voltage regulator tube ZD10, a capacitor CE10, a capacitor C10, a capacitor C12 and a resistor R16; the anode of the diode D11 is connected to the other end of the MOS transistor Q10, and the cathode of the diode D11 is connected to the common ground end through a capacitor C10; the capacitor C12 is connected in parallel with the resistor R15; one end of the voltage regulator tube ZD10 is connected to the non-inverting input end of the integrated operational amplifier U10, and the other end of the voltage regulator tube ZD10 is connected to the cathode of the diode D11; one end of the capacitor CE10 is connected to the cathode of the diode D10, and the other end of the capacitor CE10 is connected to the common ground; the resistor R16 is connected in series between the cathode of the diode D13 and the input end of the three-terminal regulator U21.

The power supply signal detection circuit comprises a diode D15, a diode D16, a resistor R18, a resistor R19, a relay normally open contact group, a voltage regulator tube ZD12 and a capacitor C17; the anodes of the diode D15 and the diode D16 are respectively connected to the switch, the cathodes of the diode D15 and the diode D16 are respectively connected to the resistor R18, the resistor R18 is connected to the resistor R19 through the normally open contact of the relay, the resistor R19 is connected with one end of the voltage regulator tube ZD12, and the other end of the voltage regulator tube ZD12 is connected to the common ground end; the capacitor C17 is connected in parallel with the voltage regulator tube ZD 12; one end of the voltage regulator tube ZD12 is connected to the MCU control circuit.

The power supply signal detection circuit further comprises a triode Q15, a triode Q16, a resistor R1A, a resistor R1C, a resistor R1E, a resistor R1F and a relay coil; the collecting electrodes of the triode Q15 and the triode Q16 are respectively connected to a relay coil, the emitting electrodes of the triode Q15 and the triode Q16 are respectively connected to a common ground end, and the base electrodes of the triode Q15 and the triode Q16 are respectively connected to the MCU control circuit through a resistor R1A and a resistor R1E; the resistor R1C and the resistor R1F are respectively connected between the base electrodes and the emitter electrodes of the triode Q15 and the triode Q16.

The signal regulation detection circuit comprises a potentiometer RP1, a potentiometer RP2, a resistor R66, a resistor R67, a capacitor C66 and a capacitor C67; one end of each of the resistor R66 and the resistor R67 is connected with a 3.3V voltage end, the other end of each of the resistor R66 and the resistor R67 is connected with one end of each of the potentiometer RP1 and the potentiometer RP2, the other end of each of the potentiometer RP1 and the potentiometer RP2 is connected with a common ground end, the capacitor C66 and the capacitor C67 are connected between the adjusting end of the potentiometer RP1 and the adjusting end of the potentiometer RP2 and the common ground end, and the adjusting ends of the potentiometer RP1 and the potentiometer RP2 are connected to the MCU control circuit.

The 0-10V signal control circuit comprises a triode Q30, a triode Q31, a diode D30, a relay normally-closed contact group, a capacitor C30, a capacitor C32, a resistor R31, a resistor R32, a resistor R33, a resistor R34 and a resistor R35; the normally closed contact of the relay is connected between the 0-10V end and the ground end in a group mode; the capacitor C30 and the diode D30 are connected in parallel and are connected between the 0-10V end and the ground end; the emitter of the triode Q30 is connected with the 0-10V end, the collector of the triode Q30 is grounded, the base of the triode Q30 is connected with the collector of the triode Q31, the collector of the triode Q31 is connected with the 0-10V end through a resistor R31, the emitter of the triode Q31 is grounded, and the capacitor C32 and the resistor R32 are connected in parallel and are connected between the base of the triode Q31 and the emitter of the triode Q31; the 0-10V end is connected to the optical coupler isolator through a resistor R34 and a resistor R35 respectively; the base of the transistor Q31 is coupled to the optocoupler isolator through a resistor R33.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model adopts a single live wire power-taking circuit, an MCU control circuit, a power signal detection circuit, a signal regulation detection circuit, an optical coupler isolator, a 0-10V signal control circuit and a switch to form a control circuit of a 0-10V dimmer; the input end of the single live wire power taking circuit is connected with the single live wire, and the output end of the single live wire power taking circuit is connected with the load through the switch; the single live wire power taking circuit is connected with a power supply signal access end of the MCU control circuit, the input of the MCU control circuit is respectively connected with the power supply signal detection circuit and the signal regulation detection circuit, and the input of the power supply signal detection circuit is connected between the switch and the load; the MCU control circuit is connected with the 0-10V signal control circuit through an optical coupling isolator. The utility model discloses a this kind of structure both can realize the nimble adjustment of 0-10V voltage signal change, can realize 0V output again when signal conditioning arrives the lower extreme, has eliminated the drawback that the lamp still can keep the light state when prior art's signal conditioning arrives the lower extreme.

The present invention will be described in further detail with reference to the accompanying drawings and examples; however, the control circuit of the 0-10V dimmer of the present invention is not limited to the embodiment.

Drawings

FIG. 1 is a schematic diagram of a control circuit for a 0-10V dimmer using a single hot line power supply of the prior art;

fig. 2 is a circuit block diagram of an embodiment of the invention;

fig. 3 is a schematic circuit diagram of a single live wire power-taking circuit according to an embodiment of the present invention;

fig. 4 is a circuit schematic diagram of a power signal detection circuit of an embodiment of the present invention;

fig. 5 is a schematic circuit diagram of the MCU control circuit and the signal conditioning detection circuit according to the embodiment of the present invention;

fig. 6 is a schematic circuit diagram of an opto-isolator and 0-10V signal control circuit according to an embodiment of the present invention.

Detailed Description

Examples

Referring to fig. 2, the control circuit of the 0-10V light modulator of the present invention comprises a single live wire power supply circuit 11, an MCU control circuit 12, a power signal detection circuit 13, a signal adjustment detection circuit 14, an optocoupler isolator 15, a 0-10V signal control circuit 16, and a switch K10; the input end of the single live wire power-taking circuit 11 is connected with a single live wire, the output end of the single live wire power-taking circuit 11 is connected with a load through the switch K10, the switch K10 is provided with two outgoing wires, and one outgoing wire is connected with the load; the single live wire power-taking circuit 11 is connected with a power supply signal access end of the MCU control circuit 12, the input of the MCU control circuit 12 is respectively connected with the power supply signal detection circuit 13 and the signal regulation detection circuit 14, the input of the power supply signal detection circuit 13 is connected between the switch and the load, and the input of the power supply signal detection circuit 13 is respectively connected with two outgoing lines; the MCU control circuit 12 is connected with the 0-10V signal control circuit 16 through an optical coupler isolator 15.

Referring to fig. 3, in the present embodiment, the single-live-wire power taking circuit 11 includes a MOS transistor Q10, a triode Q11, an integrated operational amplifier U10, and a three-terminal regulator U21; one end of the MOS transistor Q10 is connected to a single live wire, and the other end of the MOS transistor Q10 is connected to the switch; the grid electrode of the MOS tube Q10 is respectively connected to the base electrode of the triode Q11 and the output end of the integrated operational amplifier U10; the three-terminal regulator U21 is connected to the other end of the MOS transistor Q10.

In this embodiment, the single live wire power taking circuit 11 further includes a diode D10, a diode D13, a capacitor CE21, a capacitor CE22, a resistor R10, a resistor R11, a resistor R13, a resistor R14, and a resistor R15; the anode of the diode D10 is connected to the other end of the MOS transistor Q10, the cathode of the diode D10 is connected to the anode of the diode D13, the cathode of the diode D13 is connected to the input end of the three-terminal regulator U21, and the capacitor CE21 and the capacitor CE22 are respectively connected between the input end and the output end of the three-terminal regulator U21 and the common ground; the gate of the MOS transistor Q10 is connected to the base of the triode Q11 through the resistor R10 and the resistor R11, and the gate of the MOS transistor Q10 is connected to the output end of the integrated operational amplifier U10 through the resistor R10; the emitter of the triode Q11 is connected with the common ground, the collector of the triode Q11 is connected to the 3.3V voltage end through a resistor R13 and a resistor R14, the inverting input end of the integrated operational amplifier U10 is connected to the 3.3V voltage end through a resistor R14, and the non-inverting input end of the integrated operational amplifier U10 is connected to the common ground through a resistor R15.

In this embodiment, the single live wire power taking circuit 11 further includes a diode D14, a resistor R17, and a capacitor C11; the resistor R17 and the capacitor C11 are connected in parallel, one end of the resistor R17 is connected to the connection position between the grid of the MOS transistor Q10 and the resistor R10, and the other end of the resistor R17 is connected to a common ground end; the anode of the diode D14 is connected to one end of the MOS transistor Q10, and the cathode of the diode D14 is connected to the other end of the MOS transistor Q10.

In this embodiment, the single live wire power taking circuit 11 further includes a diode D11, a voltage regulator ZD10, a capacitor CE10, a capacitor C10, a capacitor C12, and a resistor R16; the anode of the diode D11 is connected to the other end of the MOS transistor Q10, and the cathode of the diode D11 is connected to the common ground end through a capacitor C10; the capacitor C12 is connected in parallel with the resistor R15; one end of the voltage regulator tube ZD10 is connected to the non-inverting input end of the integrated operational amplifier U10, and the other end of the voltage regulator tube ZD10 is connected to the cathode of the diode D11; one end of the capacitor CE10 is connected to the cathode of the diode D10, and the other end of the capacitor CE10 is connected to the common ground; the resistor R16 is connected in series between the cathode of the diode D13 and the input end of the three-terminal regulator U21.

Referring to fig. 4, in the present embodiment, the power signal detection circuit 13 includes a diode D15, a diode D16, a resistor R18, a resistor R19, a relay normally open contact group, a voltage regulator ZD12, and a capacitor C17; the anodes of the diode D15 and the diode D16 are respectively connected to the switch, wherein the anode of the diode D15 is connected to one of the outgoing lines of the switch, the outgoing line is connected with a load, the anode of the diode D16 is connected to the other outgoing line of the switch, and the other outgoing line is not connected with the load; the cathodes of the diode D15 and the diode D16 are respectively connected to the resistor R18, the resistor R18 is connected to the resistor R19 through the relay normally open contact group JD1-1, the resistor R19 is connected to one end of the voltage regulator tube ZD12, and the other end of the voltage regulator tube ZD12 is connected to a common ground; the capacitor C17 is connected in parallel with the voltage regulator tube ZD 12; one end of the voltage regulator tube ZD12 is connected to the MCU control circuit and is connected to the control chip U60.

In this embodiment, the power signal detection circuit 13 further includes a transistor Q15, a transistor Q16, a resistor R1A, a resistor R1C, a resistor R1E, a resistor R1F, and a relay coil; the collecting electrodes of the triode Q15 and the triode Q16 are respectively connected to a relay coil, the emitting electrodes of the triode Q15 and the triode Q16 are respectively connected to a common ground end, and the base electrodes of the triode Q15 and the triode Q16 are respectively connected to the MCU control circuit through a resistor R1A and a resistor R1E, namely connected to the control chip U60; the resistor R1C and the resistor R1F are respectively connected between the base electrodes and the emitter electrodes of the triode Q15 and the triode Q16.

Referring to fig. 5, in the present embodiment, the signal adjustment detecting circuit 14 includes a potentiometer RP1, a potentiometer RP2, a resistor R66, a resistor R67, a capacitor C66, and a capacitor C67; one end of each of the resistor R66 and the resistor R67 is connected with a 3.3V voltage end, the other end of each of the resistor R66 and the resistor R67 is connected with one end of each of the potentiometer RP1 and the potentiometer RP2, the other end of each of the potentiometer RP1 and the potentiometer RP2 is connected with a common ground end, the capacitor C66 and the capacitor C67 are connected between the adjusting end of the potentiometer RP1 and the adjusting end of the potentiometer RP2 and the common ground end, and the adjusting ends of the potentiometer RP1 and the potentiometer RP2 are connected to the MCU control circuit and then connected to the control chip U60.

Referring to fig. 6, the 0-10V signal control circuit 16 includes a transistor Q30, a transistor Q31, a diode D30, a normally closed relay contact set, a capacitor C30, a capacitor C32, a resistor R31, a resistor R32, a resistor R33, a resistor R34, and a resistor R35; the normally closed relay contact group JD-2 is connected between the 0-10V end and the ground end; the capacitor C30 and the diode D30 are connected in parallel and are connected between the 0-10V end and the ground end; the emitter of the triode Q30 is connected with the 0-10V end, the collector of the triode Q30 is grounded, the base of the triode Q30 is connected with the collector of the triode Q31, the collector of the triode Q31 is connected with the 0-10V end through a resistor R31, the emitter of the triode Q31 is grounded, and the capacitor C32 and the resistor R32 are connected in parallel and are connected between the base of the triode Q31 and the emitter of the triode Q31; the 0-10V end is connected to an optocoupler isolator U30 through a resistor R34 and a resistor R35 respectively; the base of the transistor Q31 is coupled to the optocoupler isolator U30 through a resistor R33.

The utility model discloses a control circuit of 0-10V light modulator, single live wire gets electric circuit 11 is when the power is opened, get the electricity through the live wire and supply power for MCU control circuit 12, MCU control circuit 12 judges through power signal detection circuitry 13 whether the switch-on comes to control 0-10V and will put through and close, thereby detect the signal that whether the user adjustment is controlling the output of 0-10V at the regulation signal simultaneously, and the control of MCU control circuit 12 and the control of 0-10V output are kept apart through the light lotus root and are operated.

When the switch K10 is connected with a load, a power supply can take 5V after passing through the MOS tube Q10, the power supply can obtain 3.3V power after being stabilized by the three-terminal regulator U21, the MCU control circuit 12 supplies power to the MCU control circuit 12, the MCU control circuit 12 judges the positions of the potentiometer RP1 and RP2, the output modulation signal is adjusted through software, a signal of 0-10V is changed and output through the optical coupling isolator U30, when the MCU control circuit 12 can judge that the potentiometer RP1 slides to the lowest end, the switch JD1-2 of the relay is in a closed state by controlling the relay JD1, and therefore the output voltage of 0-10V is 0V.

When the switch K10 is turned on and the potentiometer RP1 is not at the lowest end, that is, 0-10V has a signal output, the relay switch JD1-1 is in a closed state and the JD1-2 is in an open state, when the switch K10 is turned off and the load is off, the MCU control circuit 12 controls the relay JD1-1 to be opened and the JD1-2 to be closed through the combination of the diode D15, the diode D16, the resistor R16, the resistor R19, the voltage regulator ZD12 and the capacitor C17 in the power signal detection circuit 13, so that the output of 0-10V is 0V and the power signal detection circuit is turned off.

The dimming curve of the 0-10V output signal is controlled by single-chip software, and the dimming curve can be adjusted more easily by adopting the mode, so that the output dimming is smoother, and the problems of sudden change and jitter are avoided.

The utility model discloses a control circuit of 0-10V dimmer, which adopts a single live wire to get the electric circuit 11, a MCU control circuit 12, a power signal detection circuit 13, a signal regulation detection circuit 14, an optical coupling isolator 15, a 0-10V signal control circuit 16 and a switch K10 to form the control circuit of 0-10V dimmer; the input end of the single live wire power taking circuit 11 is connected with a single live wire, and the output end of the single live wire power taking circuit 11 is connected with a load through the switch K1; the single live wire power-taking circuit 11 is connected with a power supply signal access end of the MCU control circuit 12, the input of the MCU control circuit 12 is respectively connected with the power supply signal detection circuit 13 and the signal regulation detection circuit 14, and the input of the power supply signal detection circuit 13 is connected between the switch and the load; the MCU control circuit 12 is connected with the 0-10V signal control circuit 16 through an optical coupler isolator 15. The utility model discloses a this kind of structure both can realize the nimble adjustment of 0-10V voltage signal change, can realize 0V output again when signal conditioning arrives the lower extreme, has eliminated the drawback that the lamp still can keep the light state when prior art's signal conditioning arrives the lower extreme.

The foregoing is illustrative of the preferred embodiment of the present invention and is not to be construed as limiting the invention in any way. Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention. The technical solutions disclosed above can be used by those skilled in the art to make many possible variations and modifications, or to modify equivalent embodiments, without departing from the scope of the present invention. Therefore, any simple modification, equivalent change and modification made to the above embodiments by the technical entity of the present invention should fall within the protection scope of the technical solution of the present invention.

Claims

1. A control circuit for a 0-10V dimmer, comprising: the device comprises a single live wire power taking circuit, an MCU control circuit, a power signal detection circuit, a signal regulation detection circuit, an optical coupling isolator, a 0-10V signal control circuit and a switch; the input end of the single live wire power taking circuit is connected with the single live wire, and the output end of the single live wire power taking circuit is connected with a load through the switch; the single live wire power taking circuit is connected with a power supply signal access end of the MCU control circuit, the input of the MCU control circuit is respectively connected with the power supply signal detection circuit and the signal regulation detection circuit, and the input of the power supply signal detection circuit is connected between the switch and the load; the MCU control circuit is connected with the 0-10V signal control circuit through an optical coupling isolator.

2. The control circuit of a 0-10V dimmer according to claim 1, wherein: the single-live-wire power taking circuit comprises an MOS (metal oxide semiconductor) tube Q10, a triode Q11, an integrated operational amplifier U10 and a three-terminal regulator U21; one end of the MOS transistor Q10 is connected to a single live wire, and the other end of the MOS transistor Q10 is connected to the switch; the grid electrode of the MOS tube Q10 is respectively connected to the base electrode of the triode Q11 and the output end of the integrated operational amplifier U10; the three-terminal regulator U21 is connected to the other end of the MOS transistor Q10.

3. The control circuit of a 0-10V dimmer according to claim 2, wherein: the single-live-wire power taking circuit further comprises a diode D10, a diode D13, a capacitor CE21, a capacitor CE22, a resistor R10, a resistor R11, a resistor R13, a resistor R14 and a resistor R15; the anode of the diode D10 is connected to the other end of the MOS transistor Q10, the cathode of the diode D10 is connected to the anode of the diode D13, the cathode of the diode D13 is connected to the input end of the three-terminal regulator U21, and the capacitor CE21 and the capacitor CE22 are respectively connected between the input end and the output end of the three-terminal regulator U21 and the common ground; the gate of the MOS transistor Q10 is connected to the base of the triode Q11 through the resistor R10 and the resistor R11, and the gate of the MOS transistor Q10 is connected to the output end of the integrated operational amplifier U10 through the resistor R10; the emitter of the triode Q11 is connected with the common ground, the collector of the triode Q11 is connected to the 3.3V voltage end through a resistor R13 and a resistor R14, the inverting input end of the integrated operational amplifier U10 is connected to the 3.3V voltage end through a resistor R14, and the non-inverting input end of the integrated operational amplifier U10 is connected to the common ground through a resistor R15.

4. The control circuit of a 0-10V dimmer according to claim 3, wherein: the single live wire power taking circuit further comprises a diode D14, a resistor R17 and a capacitor C11; the resistor R17 and the capacitor C11 are connected in parallel, one end of the resistor R17 is connected to the connection position between the grid of the MOS transistor Q10 and the resistor R10, and the other end of the resistor R17 is connected to a common ground end; the anode of the diode D14 is connected to one end of the MOS transistor Q10, and the cathode of the diode D14 is connected to the other end of the MOS transistor Q10.

5. The control circuit of a 0-10V dimmer according to claim 4, wherein: the single-live-wire power taking circuit further comprises a diode D11, a voltage regulator tube ZD10, a capacitor CE10, a capacitor C10, a capacitor C12 and a resistor R16; the anode of the diode D11 is connected to the other end of the MOS transistor Q10, and the cathode of the diode D11 is connected to the common ground end through a capacitor C10; the capacitor C12 is connected in parallel with the resistor R15; one end of the voltage regulator tube ZD10 is connected to the non-inverting input end of the integrated operational amplifier U10, and the other end of the voltage regulator tube ZD10 is connected to the cathode of the diode D11; one end of the capacitor CE10 is connected to the cathode of the diode D10, and the other end of the capacitor CE10 is connected to the common ground; the resistor R16 is connected in series between the cathode of the diode D13 and the input end of the three-terminal regulator U21.

6. The control circuit of a 0-10V dimmer according to claim 1, wherein: the power supply signal detection circuit comprises a diode D15, a diode D16, a resistor R18, a resistor R19, a relay normally open contact group, a voltage regulator tube ZD12 and a capacitor C17; the anodes of the diode D15 and the diode D16 are respectively connected to the switch, the cathodes of the diode D15 and the diode D16 are respectively connected to the resistor R18, the resistor R18 is connected to the resistor R19 through the normally open contact of the relay, the resistor R19 is connected with one end of the voltage regulator tube ZD12, and the other end of the voltage regulator tube ZD12 is connected to the common ground end; the capacitor C17 is connected in parallel with the voltage regulator tube ZD 12; one end of the voltage regulator tube ZD12 is connected to the MCU control circuit.

7. The control circuit of a 0-10V dimmer according to claim 6, wherein: the power supply signal detection circuit further comprises a triode Q15, a triode Q16, a resistor R1A, a resistor R1C, a resistor R1E, a resistor R1F and a relay coil; the collecting electrodes of the triode Q15 and the triode Q16 are respectively connected to a relay coil, the emitting electrodes of the triode Q15 and the triode Q16 are respectively connected to a common ground end, and the base electrodes of the triode Q15 and the triode Q16 are respectively connected to the MCU control circuit through a resistor R1A and a resistor R1E; the resistor R1C and the resistor R1F are respectively connected between the base electrodes and the emitter electrodes of the triode Q15 and the triode Q16.

8. The control circuit of a 0-10V dimmer according to claim 1, wherein: the signal regulation detection circuit comprises a potentiometer RP1, a potentiometer RP2, a resistor R66, a resistor R67, a capacitor C66 and a capacitor C67; one end of each of the resistor R66 and the resistor R67 is connected with a 3.3V voltage end, the other end of each of the resistor R66 and the resistor R67 is connected with one end of each of the potentiometer RP1 and the potentiometer RP2, the other end of each of the potentiometer RP1 and the potentiometer RP2 is connected with a common ground end, the capacitor C66 and the capacitor C67 are connected between the adjusting end of the potentiometer RP1 and the adjusting end of the potentiometer RP2 and the common ground end, and the adjusting ends of the potentiometer RP1 and the potentiometer RP2 are connected to the MCU control circuit.

9. The control circuit of a 0-10V dimmer according to claim 1, wherein: the 0-10V signal control circuit comprises a triode Q30, a triode Q31, a diode D30, a relay normally-closed contact group, a capacitor C30, a capacitor C32, a resistor R31, a resistor R32, a resistor R33, a resistor R34 and a resistor R35; the normally closed contact of the relay is connected between the 0-10V end and the ground end in a group mode; the capacitor C30 and the diode D30 are connected in parallel and are connected between the 0-10V end and the ground end; the emitter of the triode Q30 is connected with the 0-10V end, the collector of the triode Q30 is grounded, the base of the triode Q30 is connected with the collector of the triode Q31, the collector of the triode Q31 is connected with the 0-10V end through a resistor R31, the emitter of the triode Q31 is grounded, and the capacitor C32 and the resistor R32 are connected in parallel and are connected between the base of the triode Q31 and the emitter of the triode Q31; the 0-10V end is connected to the optical coupler isolator through a resistor R34 and a resistor R35 respectively; the base of the transistor Q31 is coupled to the optocoupler isolator through a resistor R33.