A 0-10V dimming signal conversion circuit and power regulation circuit

Abstract

The present invention relates to the technical field of LED driving power supply, and specifically discloses a 0-10V dimming signal conversion circuit and power regulation circuit, including a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, a ninth resistor R9, a tenth resistor R10, an eleventh resistor R11, a twelfth resistor R12, a first capacitor C1, a second capacitor C2, a third capacitor C3, a fourth capacitor C4, a fifth capacitor C5, a diode D1, a triode Q1, a MOS tube Q2 and a toggle switch SW1. The 0-10V dimming signal conversion circuit and power regulation circuit provided by the present invention can realize the 0-10V dimming input signal conversion and the LED lamp power regulation function, and meet the needs of different users for LED lamp brightness regulation.

Description

Technical Field

[0001] The present invention relates to the technical field of LED driving power supply, and more specifically, to a 0-10V dimming signal conversion circuit and power modulation circuit. Background Art

[0002] At present, LED lighting has entered every household and is closely related to people's lives. Different users and application scenarios require different brightness. Currently, most 0-10V dimming power supplies on the market have a single 0-10V dimming function and do not have a power adjustment function. Therefore, in order to meet the various requirements of different users for the brightness of LED lamps, the present invention introduces a 0-10V dimming signal conversion circuit and a power adjustment circuit. Summary of the invention

[0003] In order to solve the deficiencies in the prior art, the present invention provides a 0-10V dimming signal conversion circuit and power adjustment circuit, which can overcome the problem in the prior art that most 0-10V dimming power supplies on the market currently have a single 0-10V dimming function and do not have a power adjustment function.

[0004] As a first aspect of the present invention, a 0-10V dimming signal conversion circuit and power modulation circuit is provided, including a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, a ninth resistor R9, a tenth resistor R10, an eleventh resistor R11, a twelfth resistor R12, a first capacitor C1, a second capacitor C2, a third capacitor C3, a fourth capacitor C4, a fifth capacitor C5, a diode D1, a transistor Q1, a MOS transistor Q2 and a toggle switch SW1, wherein:

[0005] One end of the first resistor R1 is connected to a 12V DC voltage source and one end of the second resistor R2 respectively, and the other end of the first resistor R1 is connected to one end of the third resistor R3;

[0006] One end of the second resistor R2 is connected to the 12V DC voltage source, and the other end of the second resistor R2 is connected to the emitter of the transistor Q1;

[0007] The other end of the third resistor R3 is respectively connected to the anode of the diode D1, the drain of the MOS transistor Q2, one end of the fifth resistor R5, one end of the sixth resistor R6, one end of the seventh resistor R7 and one end of the fifth capacitor C5;

[0008] One end of the fifth resistor R5 is respectively connected to the anode of the diode D1, the drain of the MOS transistor Q2, one end of the sixth resistor R6, one end of the seventh resistor R7 and one end of the fifth capacitor C5, and the other end of the fifth resistor R5 is connected to the third pin of the toggle switch SW1;

[0009] One end of the sixth resistor R6 is respectively connected to the anode of the diode D1, the drain of the MOS transistor Q2, one end of the seventh resistor R7 and one end of the fifth capacitor C5, and the other end of the sixth resistor R6 is connected to the fourth pin of the toggle switch SW1;

[0010] One end of the seventh resistor R7 is connected to the anode of the diode D1, the drain of the MOS transistor Q2 and one end of the fifth capacitor C5 respectively, and the other end of the seventh resistor R7 is connected to the fifth pin of the toggle switch SW1;

[0011] One end of the fourth resistor R4 is connected to the 0-10V dimmer input terminal DIM1+, and the other end of the fourth resistor R4 is respectively connected to the cathode of the diode D1, one end of the eighth resistor R8 and one end of the first capacitor C1;

[0012] One end of the eighth resistor R8 is connected to one end of the first capacitor C1 and the cathode of the diode D1 respectively, and the other end of the eighth resistor R8 is connected to the base of the transistor Q1;

[0013] One end of the ninth resistor R9 is respectively connected to the gate of the MOS transistor Q2 and the collector of the transistor Q1, and the other end of the ninth resistor R9 is respectively connected to the negative electrode DIM- of the 0-10V dimmer, the other end of the first capacitor C1, the source of the MOS transistor Q2, one end of the second capacitor C2, one end of the tenth resistor R10, one end of the third capacitor C3, one end of the eleventh resistor R11, one end of the fourth capacitor C4, one end of the twelfth resistor R12 and the other end of the fifth capacitor C5;

[0014] One end of the tenth resistor R10 is respectively connected to the negative electrode DIM- of the 0-10V dimmer, the other end of the first capacitor C1, the source of the MOS tube Q2, one end of the second capacitor C2, one end of the third capacitor C3, one end of the eleventh resistor R11, one end of the fourth capacitor C4, one end of the twelfth resistor R12 and the other end of the fifth capacitor C5, and the other end of the tenth resistor R10 is respectively connected to the 9th pin of the toggle switch SW1 and the other end of the second capacitor C2;

[0015] One end of the eleventh resistor R11 is respectively connected to the negative electrode DIM- of the 0-10V dimmer, the other end of the first capacitor C1, the source of the MOS tube Q2, one end of the second capacitor C2, one end of the third capacitor C3, one end of the fourth capacitor C4, one end of the twelfth resistor R12 and the other end of the fifth capacitor C5, and the other end of the eleventh resistor R11 is respectively connected to the 10th pin of the toggle switch SW1 and the other end of the third capacitor C3;

[0016] One end of the twelfth resistor R12 is respectively connected to the negative electrode DIM- of the 0-10V dimmer, the other end of the first capacitor C1, the source of the MOS tube Q2, one end of the second capacitor C2, one end of the third capacitor C3, one end of the fourth capacitor C4 and the other end of the fifth capacitor C5, and the other end of the twelfth resistor R12 is respectively connected to the 11th pin of the toggle switch SW1 and the other end of the fourth capacitor C4;

[0017] One end of the first capacitor C1 is connected to the cathode of the diode D1, and the other end of the first capacitor C1 is respectively connected to the negative electrode DIM- of the 0-10V dimmer, the source of the MOS tube Q2, one end of the second capacitor C2, one end of the third capacitor C3, one end of the fourth capacitor C4 and the other end of the fifth capacitor C5;

[0018] One end of the second capacitor C2 is respectively connected to the negative electrode DIM- of the 0-10V dimmer, the source of the MOS tube Q2, one end of the third capacitor C3, one end of the fourth capacitor C4 and the other end of the fifth capacitor C5, and the other end of the second capacitor C2 is connected to the 9th pin of the toggle switch SW1;

[0019] One end of the third capacitor C3 is respectively connected to the negative electrode DIM- of the 0-10V dimmer, the source of the MOS tube Q2, one end of the fourth capacitor C4 and the other end of the fifth capacitor C5, and the other end of the third capacitor C3 is connected to the 10th pin of the toggle switch SW1;

[0020] One end of the fourth capacitor C4 is respectively connected to the negative electrode DIM- of the 0-10V dimmer, the source of the MOS tube Q2 and the other end of the fifth capacitor C5, and the other end of the fourth capacitor C4 is connected to the 11th pin of the toggle switch SW1;

[0021] One end of the fifth capacitor C5 is respectively connected to the reference voltage V1, the anode of the diode D1 and the drain of the MOS tube Q2, and the other end of the fifth capacitor C5 is respectively connected to the negative electrode DIM- of the 0-10V dimmer and the source of the MOS tube Q2;

[0022] The anode of the diode D1 is connected to the drain of the MOS transistor Q2 , the gate of the MOS transistor Q2 is connected to the emitter of the transistor Q1 , and the source of the MOS transistor Q2 is connected to the negative electrode DIM- of the 0-10V dimmer.

[0023] Further, the 13th pin of the toggle switch SW1 is connected to the 14th pin thereof, and both the 13th pin and the 14th pin of the toggle switch SW1 are connected to the LED driving power supply 0-10V signal receiving terminal DIM2+.

[0024] Furthermore, the transistor Q1 is a PNP transistor.

[0025] Furthermore, the MOS tube Q2 is an NPN type MOS tube.

[0026] Furthermore, the first capacitor C1, the second capacitor C2, the third capacitor C3, the fourth capacitor C4 and the fifth capacitor C5 are all filter capacitors.

[0027] The 0-10V dimming signal conversion circuit and power adjustment circuit provided by the present invention has the following advantages: it can realize 0-10V dimming input signal conversion and LED lamp power adjustment function, and meet the needs of different users for LED lamp brightness adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention, but do not constitute a limitation of the present invention.

[0029] Figure 1 This is a schematic diagram of the structure of the 0-10V dimming signal conversion circuit and power modulation circuit provided by the present invention.

[0030] Figure 2 A circuit diagram of a toggle switch provided by the present invention. DETAILED DESCRIPTION

[0031] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation, structure, characteristics and effects of the 0-10V dimming signal conversion circuit and power modulation circuit proposed by the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the protection scope of the present invention.

[0032] In this embodiment, a 0-10V dimming signal conversion circuit and a power modulation circuit are provided. Figure 1-2As shown, the 0-10V dimming signal conversion circuit and power modulation circuit includes a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, a ninth resistor R9, a tenth resistor R10, an eleventh resistor R11, a twelfth resistor R12, a first capacitor C1, a second capacitor C2, a third capacitor C3, a fourth capacitor C4, a fifth capacitor C5, a diode D1, a transistor Q1, a MOS tube Q2 and a toggle switch SW1, wherein,

[0033] One end of the first resistor R1 is connected to a 12V DC voltage source and one end of the second resistor R2 respectively, and the other end of the first resistor R1 is connected to one end of the third resistor R3;

[0034] One end of the second resistor R2 is connected to the 12V DC voltage source, and the other end of the second resistor R2 is connected to the emitter of the transistor Q1;

[0035] The other end of the third resistor R3 is respectively connected to the anode of the diode D1, the drain of the MOS transistor Q2, one end of the fifth resistor R5, one end of the sixth resistor R6, one end of the seventh resistor R7 and one end of the fifth capacitor C5;

[0036] One end of the fifth resistor R5 is respectively connected to the anode of the diode D1, the drain of the MOS transistor Q2, one end of the sixth resistor R6, one end of the seventh resistor R7 and one end of the fifth capacitor C5, and the other end of the fifth resistor R5 is connected to the third pin of the toggle switch SW1;

[0037] One end of the sixth resistor R6 is respectively connected to the anode of the diode D1, the drain of the MOS transistor Q2, one end of the seventh resistor R7 and one end of the fifth capacitor C5, and the other end of the sixth resistor R6 is connected to the fourth pin of the toggle switch SW1;

[0038] One end of the seventh resistor R7 is connected to the anode of the diode D1, the drain of the MOS transistor Q2 and one end of the fifth capacitor C5 respectively, and the other end of the seventh resistor R7 is connected to the fifth pin of the toggle switch SW1;

[0039] One end of the fourth resistor R4 is connected to the 0-10V dimmer input terminal DIM1+, and the other end of the fourth resistor R4 is respectively connected to the cathode of the diode D1, one end of the eighth resistor R8 and one end of the first capacitor C1;

[0040] One end of the eighth resistor R8 is connected to one end of the first capacitor C1 and the cathode of the diode D1 respectively, and the other end of the eighth resistor R8 is connected to the base of the transistor Q1;

[0041] One end of the ninth resistor R9 is respectively connected to the gate of the MOS transistor Q2 and the collector of the transistor Q1, and the other end of the ninth resistor R9 is respectively connected to the negative electrode DIM- of the 0-10V dimmer, the other end of the first capacitor C1, the source of the MOS transistor Q2, one end of the second capacitor C2, one end of the tenth resistor R10, one end of the third capacitor C3, one end of the eleventh resistor R11, one end of the fourth capacitor C4, one end of the twelfth resistor R12 and the other end of the fifth capacitor C5;

[0042] One end of the tenth resistor R10 is respectively connected to the negative electrode DIM- of the 0-10V dimmer, the other end of the first capacitor C1, the source of the MOS tube Q2, one end of the second capacitor C2, one end of the third capacitor C3, one end of the eleventh resistor R11, one end of the fourth capacitor C4, one end of the twelfth resistor R12 and the other end of the fifth capacitor C5, and the other end of the tenth resistor R10 is respectively connected to the 9th pin of the toggle switch SW1 and the other end of the second capacitor C2;

[0043] One end of the eleventh resistor R11 is respectively connected to the negative electrode DIM- of the 0-10V dimmer, the other end of the first capacitor C1, the source of the MOS tube Q2, one end of the second capacitor C2, one end of the third capacitor C3, one end of the fourth capacitor C4, one end of the twelfth resistor R12 and the other end of the fifth capacitor C5, and the other end of the eleventh resistor R11 is respectively connected to the 10th pin of the toggle switch SW1 and the other end of the third capacitor C3;

[0044] One end of the twelfth resistor R12 is respectively connected to the negative electrode DIM- of the 0-10V dimmer, the other end of the first capacitor C1, the source of the MOS tube Q2, one end of the second capacitor C2, one end of the third capacitor C3, one end of the fourth capacitor C4 and the other end of the fifth capacitor C5, and the other end of the twelfth resistor R12 is respectively connected to the 11th pin of the toggle switch SW1 and the other end of the fourth capacitor C4;

[0045] One end of the first capacitor C1 is connected to the cathode of the diode D1, and the other end of the first capacitor C1 is respectively connected to the negative electrode DIM- of the 0-10V dimmer, the source of the MOS tube Q2, one end of the second capacitor C2, one end of the third capacitor C3, one end of the fourth capacitor C4 and the other end of the fifth capacitor C5;

[0046] One end of the second capacitor C2 is respectively connected to the negative electrode DIM- of the 0-10V dimmer, the source of the MOS tube Q2, one end of the third capacitor C3, one end of the fourth capacitor C4 and the other end of the fifth capacitor C5, and the other end of the second capacitor C2 is connected to the 9th pin of the toggle switch SW1;

[0047] One end of the third capacitor C3 is respectively connected to the negative electrode DIM- of the 0-10V dimmer, the source of the MOS tube Q2, one end of the fourth capacitor C4 and the other end of the fifth capacitor C5, and the other end of the third capacitor C3 is connected to the 10th pin of the toggle switch SW1;

[0048] One end of the fourth capacitor C4 is respectively connected to the negative electrode DIM- of the 0-10V dimmer, the source of the MOS tube Q2 and the other end of the fifth capacitor C5, and the other end of the fourth capacitor C4 is connected to the 11th pin of the toggle switch SW1;

[0049] One end of the fifth capacitor C5 is respectively connected to the reference voltage V1, the anode of the diode D1 and the drain of the MOS tube Q2, and the other end of the fifth capacitor C5 is respectively connected to the negative electrode DIM- of the 0-10V dimmer and the source of the MOS tube Q2;

[0050] The anode of the diode D1 is connected to the drain of the MOS transistor Q2 , the gate of the MOS transistor Q2 is connected to the emitter of the transistor Q1 , and the source of the MOS transistor Q2 is connected to the negative electrode DIM- of the 0-10V dimmer.

[0051] Preferably, the 13th pin of the toggle switch SW1 is connected to the 14th pin thereof, and both the 13th pin and the 14th pin of the toggle switch SW1 are connected to the LED driving power supply 0-10V signal receiving terminal DIM2+.

[0052] Preferably, the transistor Q1 is a PNP transistor.

[0053] Preferably, the MOS tube Q2 is an NPN type MOS tube.

[0054] Preferably, the first capacitor C1, the second capacitor C2, the third capacitor C3, the fourth capacitor C4 and the fifth capacitor C5 are all filter capacitors and have a filtering function.

[0055] Specifically, the reference voltage V1 is a 12V DC voltage that is divided by the first resistor R1, the third resistor R3, the fifth resistor R5, the sixth resistor R6, the seventh resistor R7, the tenth resistor R10, the eleventh resistor R11, and the twelfth resistor R12 to be the reference voltage of the LED driving power supply 0-10V dimming input voltage Vdim2.

[0056] like Figure 1-2 As shown, the working principle of the 0-10V dimming signal conversion circuit and power modulation circuit provided by the present invention is as follows:

[0057] SW1 is a toggle switch with 6 gears, gear 1: pin 1 is connected to pin 13 and pin 7 is connected to pin 14, simplified as (1-13) & (7-14); gear 2: pin 2 is connected to pin 13 and pin 8 is connected to pin 14, simplified as (2-13) & (8-14); and so on. The present invention uses gears 3, 4, and 5 as examples. It can be seen from the circuit diagram of the toggle switch SW1 that pins 13 and 14 are connected, and the voltage Vdim2 on pins 13 and 14 is the 0-10V dimming input voltage of the LED drive power supply, so when the toggle switch SW1 is gear 3, pin 3 and pin 9 of the toggle switch SW1 are connected; when the toggle switch SW1 is gear 4, pin 4 and pin 10 of the toggle switch SW1 are connected; when the toggle switch SW1 is gear 5, pin 5 and pin 11 of the toggle switch SW1 are connected. Assume that the diode conduction voltage drop of diode D1 is Vd, because the conduction condition of the diode is: when the anode voltage - cathode voltage > Vd, the diode is forward-conducted, otherwise it is reverse-cutoff. The V1 voltage is obtained by resistor voltage division through R1, R3, R5, R6, R7, R10, R11, and R12 after passing through a 12V DC voltage. By matching the different resistance values ​​of R1, R3, R5, R6, R7, R10, R11, and R12, the maximum voltage of the reference voltage V1 is set to V1max = 10V + Vd, so when Vdim1 ≥ V1max, the diode D1 is reverse-cutoff, V1 = 10V + Vd. When Vdim1 < V1max, the diode D1 is forward-conducted, V1 = Vdim1 + Vd. From the above, we can know that when Vdim1≥V1max, the voltage of V1 is V1=10V+Vd, and when Vdim1<V1max, the voltage of V1 changes linearly with Vdim1, for example, when Vdim1=10V, V1=10V+Vd; when Vdim1=5V, V1=5V+Vd, and so on. Figure 1 From the above principle description, we can know that Vdim2 is obtained by R5, R6, R7, R10, R11, and R12 through V1 and resistor voltage division, and V1 follows the voltage Vdim1, and Vdim2 follows V1, so the Vdim2 voltage follows the Vdim1 dimming voltage. When the 0-10V dimmer dimming voltage Vdim1 changes, the LED drive voltage 0-10V input voltage Vdim2 also changes, achieving the function of 0-10V dimming signal conversion. R8, R2, R9, Q1 and Q2 form a dimming shutdown circuit. Assuming that the on-voltage of transistor Q1 is 0.7V, when Vdim1>0.7V, transistor Q1 is turned off, and MOS tube Q2 is turned off. When Vdim<0.7V, transistor Q1 is turned on, and 12V is supplied to the gate of MOS tube Q2 through R2. MOS tube Q2 is turned on, so MOS tube Q2 pulls V1 down, V1=0V, then Vdim2=0V, and the LED driving power reaches the dimming and light-off conditions, realizing the turning on and off of the light;

[0058] The principle of the power regulation circuit is as follows: the present invention takes the 3rd, 4th and 5th gears as examples. When in the 3rd gear, Vdim2 is obtained by passing through R5 and R10 and being divided by V1, Vdim2=V1*R10 / (R5+R10). By setting the resistance values ​​of R5 and R10, the maximum voltage of Vdim2 is 10V. When Vdim2=10V, the power of the LED driving power supply is the maximum power, and the 3rd gear is the 100% power gear. When in the 4th gear, Vdim2 is obtained by passing through R6 and R11 and being divided by V1, Vdim2=V1*R11 / (R6+R11). By setting R 6 and R11 resistance values, make the maximum voltage of Vdim2 7V, when Vdim2 = 7V, at this time the power of the LED driving power supply is 70% of the maximum power, then the 4th gear is the 70% power gear; when it is the 5th gear, Vdim2 is obtained by dividing the voltage of V1 through R7 and R12, Vdim2 = V1*R12 / (R7+R12), by setting the resistance values ​​of R7 and R12, make the maximum voltage of Vdim2 5V, when Vdim2 = 5V, at this time the power of the LED driving power supply is 50% of the maximum power, then the 5th gear is the 50% power gear; the above is the principle of the power adjustment function.

[0059] The 0-10V dimming signal conversion circuit and power adjustment circuit provided by the present invention can realize the 0-10V dimming input signal conversion and LED lamp power adjustment function, and meet the needs of different users for LED lamp brightness adjustment.

[0060] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with this profession can make some changes or modifications to equivalent embodiments of equivalent changes using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the scope of the technical solution of the present invention.

Claims

1. A 0-10V dimming signal conversion circuit and power modulation circuit, characterized in that: The invention comprises a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, a ninth resistor R9, a tenth resistor R10, an eleventh resistor R11, a twelfth resistor R12, a first capacitor C1, a second capacitor C2, a third capacitor C3, a fourth capacitor C4, a fifth capacitor C5, a diode D1, a transistor Q1, a MOS transistor Q2 and a toggle switch SW1, wherein: One end of the first resistor R1 is connected to a 12V DC voltage source and one end of the second resistor R2 respectively, and the other end of the first resistor R1 is connected to one end of the third resistor R3; One end of the second resistor R2 is connected to the 12V DC voltage source, and the other end of the second resistor R2 is connected to the emitter of the transistor Q1; The other end of the third resistor R3 is respectively connected to the anode of the diode D1, the drain of the MOS transistor Q2, one end of the fifth resistor R5, one end of the sixth resistor R6, one end of the seventh resistor R7 and one end of the fifth capacitor C5; One end of the fifth resistor R5 is respectively connected to the anode of the diode D1, the drain of the MOS transistor Q2, one end of the sixth resistor R6, one end of the seventh resistor R7 and one end of the fifth capacitor C5, and the other end of the fifth resistor R5 is connected to the third pin of the toggle switch SW1; One end of the sixth resistor R6 is respectively connected to the anode of the diode D1, the drain of the MOS transistor Q2, one end of the seventh resistor R7 and one end of the fifth capacitor C5, and the other end of the sixth resistor R6 is connected to the fourth pin of the toggle switch SW1; One end of the seventh resistor R7 is connected to the anode of the diode D1, the drain of the MOS transistor Q2 and one end of the fifth capacitor C5 respectively, and the other end of the seventh resistor R7 is connected to the fifth pin of the toggle switch SW1; One end of the fourth resistor R4 is connected to the 0-10V dimmer input terminal DIM1+, and the other end of the fourth resistor R4 is respectively connected to the cathode of the diode D1, one end of the eighth resistor R8 and one end of the first capacitor C1; One end of the eighth resistor R8 is connected to one end of the first capacitor C1 and the cathode of the diode D1 respectively, and the other end of the eighth resistor R8 is connected to the base of the transistor Q1; One end of the ninth resistor R9 is respectively connected to the gate of the MOS transistor Q2 and the collector of the transistor Q1, and the other end of the ninth resistor R9 is respectively connected to the negative electrode DIM- of the 0-10V dimmer, the other end of the first capacitor C1, the source of the MOS transistor Q2, one end of the second capacitor C2, one end of the tenth resistor R10, one end of the third capacitor C3, one end of the eleventh resistor R11, one end of the fourth capacitor C4, one end of the twelfth resistor R12 and the other end of the fifth capacitor C5; One end of the tenth resistor R10 is respectively connected to the negative electrode DIM- of the 0-10V dimmer, the other end of the first capacitor C1, the source of the MOS tube Q2, one end of the second capacitor C2, one end of the third capacitor C3, one end of the eleventh resistor R11, one end of the fourth capacitor C4, one end of the twelfth resistor R12 and the other end of the fifth capacitor C5, and the other end of the tenth resistor R10 is respectively connected to the 9th pin of the toggle switch SW1 and the other end of the second capacitor C2; One end of the eleventh resistor R11 is respectively connected to the negative electrode DIM- of the 0-10V dimmer, the other end of the first capacitor C1, the source of the MOS tube Q2, one end of the second capacitor C2, one end of the third capacitor C3, one end of the fourth capacitor C4, one end of the twelfth resistor R12 and the other end of the fifth capacitor C5, and the other end of the eleventh resistor R11 is respectively connected to the 10th pin of the toggle switch SW1 and the other end of the third capacitor C3; One end of the twelfth resistor R12 is respectively connected to the negative electrode DIM- of the 0-10V dimmer, the other end of the first capacitor C1, the source of the MOS tube Q2, one end of the second capacitor C2, one end of the third capacitor C3, one end of the fourth capacitor C4 and the other end of the fifth capacitor C5, and the other end of the twelfth resistor R12 is respectively connected to the 11th pin of the toggle switch SW1 and the other end of the fourth capacitor C4; One end of the first capacitor C1 is connected to the cathode of the diode D1, and the other end of the first capacitor C1 is respectively connected to the negative electrode DIM- of the 0-10V dimmer, the source of the MOS tube Q2, one end of the second capacitor C2, one end of the third capacitor C3, one end of the fourth capacitor C4 and the other end of the fifth capacitor C5; One end of the second capacitor C2 is respectively connected to the negative electrode DIM- of the 0-10V dimmer, the source of the MOS tube Q2, one end of the third capacitor C3, one end of the fourth capacitor C4 and the other end of the fifth capacitor C5, and the other end of the second capacitor C2 is connected to the 9th pin of the toggle switch SW1; One end of the third capacitor C3 is respectively connected to the negative electrode DIM- of the 0-10V dimmer, the source of the MOS tube Q2, one end of the fourth capacitor C4 and the other end of the fifth capacitor C5, and the other end of the third capacitor C3 is connected to the 10th pin of the toggle switch SW1; One end of the fourth capacitor C4 is respectively connected to the negative electrode DIM- of the 0-10V dimmer, the source of the MOS tube Q2 and the other end of the fifth capacitor C5, and the other end of the fourth capacitor C4 is connected to the 11th pin of the toggle switch SW1; One end of the fifth capacitor C5 is respectively connected to the reference voltage V1, the anode of the diode D1 and the drain of the MOS tube Q2, and the other end of the fifth capacitor C5 is respectively connected to the negative electrode DIM- of the 0-10V dimmer and the source of the MOS tube Q2; The anode of the diode D1 is connected to the drain of the MOS transistor Q2 , the gate of the MOS transistor Q2 is connected to the emitter of the transistor Q1 , and the source of the MOS transistor Q2 is connected to the negative electrode DIM- of the 0-10V dimmer.

2. The 0-10V dimming signal conversion circuit and power modulation circuit according to claim 1, characterized in that: The 13th pin of the toggle switch SW1 is connected to its 14th pin, and both the 13th pin and the 14th pin of the toggle switch SW1 are connected to the LED driving power supply 0-10V signal receiving terminal DIM2+.

3. The 0-10V dimming signal conversion circuit and power modulation circuit according to claim 1, characterized in that: The transistor Q1 is a PNP transistor.

4. The 0-10V dimming signal conversion circuit and power modulation circuit according to claim 1, characterized in that: The MOS tube Q2 is an NPN type MOS tube.

5. The 0-10V dimming signal conversion circuit and power modulation circuit according to claim 1, characterized in that: The first capacitor C1 , the second capacitor C2 , the third capacitor C3 , the fourth capacitor C4 and the fifth capacitor C5 are all filter capacitors.

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