CN210328092U

CN210328092U - Electric quantity and dimming control two-in-one circuit

Info

Publication number: CN210328092U
Application number: CN201920812161.9U
Authority: CN
Inventors: 刘永胜; 黄奕奋; 林贤勇
Original assignee: SHENZHEN FENYONG PHOTOELECTRIC CO Ltd
Current assignee: SHENZHEN FENYONG PHOTOELECTRIC CO Ltd
Priority date: 2019-05-31
Filing date: 2019-05-31
Publication date: 2020-04-14
Anticipated expiration: 2029-05-31

Abstract

The utility model provides an electric quantity and two unification circuits of dimming control, this electric quantity and two unification circuits of dimming control include the electric quantity module of adjusting luminance, and the electric quantity module of adjusting luminance includes tenth resistance, eleventh resistance, twelfth resistance, thirteenth resistance, fourteenth resistance, fifteenth resistance, electric quantity module, first opto-coupler, second opto-coupler, and first opto-coupler includes illuminator, photic ware, and the second opto-coupler includes illuminator, photic ware. The utility model has the advantages that: the utility model discloses an electric quantity and two unification circuits of dimming control, through keeping apart the processing between the output of adjusting luminance, detection input and the electric quantity module three of adjusting luminance electric quantity module, avoided when measuring, controlling respectively the insulating region's of difference module, the destroyed potential safety hazard of insulating system, through adopting highly insulating isolation power conversion module, and adjust luminance electric quantity module and carry out highly insulating isolation processing, provide an electric quantity and two unification circuits of dimming control that highly insulating kept apart.

Description

Electric quantity and dimming control two-in-one circuit

Technical Field

The utility model relates to an electronic circuit field especially relates to an electric quantity and two unification circuits of control of adjusting luminance.

Background

With the development of science and technology, the application of electric quantity measurement and dimming control is more and more extensive, but the power supply and interface parts of the current products, electric quantity and dimming control modules are basically not isolated. For example, when the voltage and current of the AC part of the power supply are measured and the dimming control of the secondary of the power supply is performed, there is a safety risk that the insulation system is damaged.

SUMMERY OF THE UTILITY MODEL

The utility model provides an electric quantity and dimming control two unification circuits, this electric quantity and dimming control two unification circuits include dimming electric quantity module, dimming electric quantity module includes tenth resistance, eleventh resistance, twelfth resistance, thirteenth resistance, fourteenth resistance, fifteenth resistance, electric quantity module, first opto-coupler, second opto-coupler, first opto-coupler includes first illuminator, first photic ware, the second opto-coupler includes second illuminator, second photic ware; the PWM end of the electric quantity module is connected with one end of the tenth resistor, and the other end of the tenth resistor is connected with one end of the first light emitter; the DET-IN end of the electric quantity module is connected with one end of the second light receiver; the GND end of the electric quantity module is respectively connected with the other end of the second light receiver, the secondary ground AGND and the other end of the first light emitter; the other end of the second light receiver is connected with the other end of the first light emitter, and the other end of the second light receiver and the other end of the first light emitter are respectively connected with a secondary ground AGND; the VDD end of the electric quantity module is connected with the VMCU; a VIN + end of the electric quantity module is respectively connected with one end of the thirteenth resistor and one end of the fourteenth resistor, the other end of the thirteenth resistor is connected with A, and A is a terminal of voltage to be measured; a VIN-end and an IIN-end of the electric quantity module are respectively connected with one end of the twelfth resistor, and the other end of the twelfth resistor is respectively connected with the other end of the fourteenth resistor, the other end of the fifteenth resistor and a B _ IN end; the other end of the fourteenth resistor is connected with the other end of the twelfth resistor, the other end of the fifteenth resistor and a B _ IN end respectively; the other end of the fifteenth resistor is connected with the other end of the fourteenth resistor, the other end of the twelfth resistor and a B _ IN end respectively; the IIN + end of the electric quantity module is connected with one end of the fifteenth resistor and the B _ LOAD end respectively; one end of the first light receiver is connected with a DIM _ PWM + end, and the other end of the first light receiver is connected with a DIM _ PWM-end; one end of the second light emitter is connected with one end of the eleventh resistor, and the other end of the second light emitter is connected with DET _ IN-; the other end of the eleventh resistor is connected with DET _ IN +.

As a further improvement of the utility model, the electric quantity and dimming control two-in-one circuit comprises an insulation isolation power supply conversion module, and the dimming electric quantity module is connected with the insulation isolation power supply conversion module;

the insulation isolation power supply conversion module comprises a first capacitor, a power supply IC, an isolation and energy conversion transformer, a diode, a second capacitor, a third resistor, a fourth resistor and an optical coupler, wherein the optical coupler comprises a light emitter and a light receiver;

the GND end of the power supply IC is connected with a primary ground GND;

the SW end of the power supply IC is connected with the isolation and energy conversion transformer; the VIN end of the power supply IC is respectively connected with one end of the light receiver, the isolation and energy conversion transformer, the VIN end and one end of the first capacitor;

one end of the first capacitor is respectively connected with the VIN end, the isolation and energy conversion transformer, one end of the light receiver and the VIN end of the power supply IC, and the other end of the first capacitor is grounded;

the FB end of the power supply IC is connected with the other end of the light receiver;

the isolation and energy conversion transformer is connected with a secondary ground AGND;

one end of the diode is connected with the isolation and energy conversion transformer, and the other end of the diode is respectively connected with one end of the second capacitor, one end of VOUT and one end of the third resistor;

one end of the second capacitor is connected with the other end of the diode, the end VOUT and one end of the third resistor respectively, and the other end of the second capacitor is connected with a secondary ground AGND;

one end of the third resistor is connected with the other end of the diode, one end of the second capacitor and the VOUT end respectively, and the other end of the third resistor is connected with one end of the fourth resistor;

the other end of the fourth resistor is connected with a secondary ground AGND;

one end of the light emitter is connected between the third resistor and the fourth resistor, and the other end of the light emitter is respectively connected with the other end of the fourth resistor and secondary ground AGND; or one end of the light emitter is connected with one end of the third resistor, the end VOUT, one end of the second capacitor and the other end of the diode respectively, and the other end of the light emitter is connected between the third resistor and the fourth resistor.

As a further improvement, the power conversion module is kept apart in insulation includes the second triode, the base of second triode connect in the third resistance with between the fourth resistance, the projecting pole of second triode respectively with second electric capacity one end the diode other end, VOUT end third resistance one end links to each other, the collecting electrode of second triode with illuminator one end links to each other, the illuminator other end respectively with the fourth resistance other end, secondary ground AGND link to each other.

As a further improvement of the utility model, the insulating power conversion module of keeping apart includes voltage reference source IC, voltage reference source IC 1 st foot respectively with secondary ground AGND the fourth resistance other end links to each other, voltage reference source IC's 3 rd foot is connected the third resistance with between the fourth resistance, voltage reference source IC's 2 nd foot with the illuminator other end links to each other, illuminator one end respectively with third resistance one end, VOUT end second electric capacity one end the diode other end links to each other.

As a further improvement, the power conversion module is isolated in insulation still includes the seventh resistance, seventh resistance one end with the illuminator other end links to each other, the seventh resistance other end with voltage reference source IC's 2 nd foot links to each other.

As a further improvement of the utility model, the insulating power conversion module of keeping apart includes the seventh resistance, seventh resistance one end with the illuminator other end links to each other, the seventh resistance other end respectively with the fourth resistance other end, secondary ground AGND link to each other.

As a further improvement of the present invention, the insulation isolation power conversion module includes a second triode, a voltage reference source IC, an eighth resistor, and a seventh resistor, wherein the 2 nd pin of the voltage reference source IC is connected to one end of the eighth resistor; a base electrode of the second triode is connected with the other end of the eighth resistor, an emitting electrode of the second triode is respectively connected with one end of the second capacitor, the other end of the diode, a VOUT end and one end of the third resistor, a collecting electrode of the second triode is connected with one end of the light emitter, the other end of the light emitter is connected with one end of the seventh resistor, and the other end of the seventh resistor is respectively connected with the other end of the fourth resistor, a pin 1 of the voltage reference source IC and a secondary ground AGND; the 1 st pin of the voltage reference source IC is respectively connected with the AGND, the other end of the fourth resistor and the other end of the seventh resistor, and the 3 rd pin of the voltage reference source IC is connected between the third resistor and the fourth resistor.

The utility model has the advantages that: the utility model discloses an electric quantity and two unification circuits of dimming control, through keeping apart the processing between the output of adjusting luminance, detection input and the electric quantity module three of adjusting luminance electric quantity module, avoided when measuring, controlling respectively the insulating region's of difference module, the destroyed potential safety hazard of insulating system, through adopting highly insulating isolation power conversion module, and adjust luminance electric quantity module and carry out highly insulating isolation processing, provide an electric quantity and two unification circuits of dimming control that highly insulating kept apart.

Drawings

FIG. 1 is a circuit diagram of a first implementation of example 1 of an isolated power conversion module;

FIG. 2 is a circuit diagram of a second implementation of example 1 of an isolated power conversion module;

fig. 3 is a circuit diagram of embodiment 2 of an insulated isolated power conversion module;

fig. 4 is a circuit diagram of embodiment 3 of an insulated isolated power conversion module;

fig. 5 is a circuit diagram of embodiment 4 of an isolated power conversion module;

fig. 6 is a circuit diagram of embodiment 5 of an isolated power conversion module;

fig. 7 is a circuit diagram of embodiment 6 of an isolated power conversion module;

fig. 8 is a circuit diagram of the dimming power module of the present invention.

Detailed Description

The utility model discloses an electric quantity and two unification circuits of dimming control, concrete embodiment is as follows:

as shown in fig. 8, the circuit for integrating power and dimming control includes a dimming power module, where the dimming power module includes a tenth resistor R10, an eleventh resistor R11, a twelfth resistor R12, a thirteenth resistor R13, a fourteenth resistor R14, a fifteenth resistor R15, a power module U4, a first optical coupler U5, and a second optical coupler U6, where the first optical coupler U5 includes a first light emitter U5-B and a first light receiver U5-a, and the second optical coupler U6 includes a second light emitter U6-B and a second light receiver U6-a; the PWM end of the electric quantity module U4 is connected with one end of the tenth resistor R10, and the other end of the tenth resistor R10 is connected with one end of the first light-emitting device U5-B; the DET-IN end of the electric quantity module U4 is connected with one end of the second light receiver U6-A; the GND end of the electric quantity module U4 is respectively connected with the other end of a second light receiver U6-A, a secondary ground AGND and the other end of the first light emitter U5-B; the other end of the second light receiver U6-A is connected with the other end of the first light emitter U5-B, and the other end of the second light receiver U6-A and the other end of the first light emitter U5-B are respectively connected with secondary ground AGND (connected with secondary ground AGND of the power supply module); the VDD end of the electric quantity module U4 is connected with a VMCU, and the VMCU is equivalent to VOUT of the power supply module; a VIN + terminal of the electric quantity module U4 is respectively connected with one terminal of the thirteenth resistor R13 and one terminal of the fourteenth resistor R14, and the other terminal of the thirteenth resistor R13 is connected with A; A. B-IN is connected to the voltage to be measured and A, B _ LOAD is connected to the LOAD so that the fifteenth resistor R15 is connected IN series IN the LOAD circuit for testing the current. A is one terminal of the voltage to be measured, corresponding to the + stylus of the multimeter. The VIN end of the electric quantity module U4 and the IIN end of the electric quantity module U4 are respectively connected with one end of a twelfth resistor R12, the other end of the twelfth resistor R12 is respectively connected with the other end of a fourteenth resistor R14, the other end of a fifteenth resistor R15 and a B _ IN end, and B _ IN is another point of voltage to be measured and is equivalent to a meter pen of a universal meter; the other end of the fourteenth resistor R14 is connected to the other end of the twelfth resistor R12, the other end of the fifteenth resistor R15 and the end B _ IN, respectively; the other end of the fifteenth resistor R15 is connected to the other end of the fourteenth resistor R14, the other end of the twelfth resistor R12 and the end B _ IN, respectively; the IIN + end of the electric quantity module U4 is respectively connected with one end of the fifteenth resistor R15 and a B _ LOAD end, the B _ LOAD is used in a circuit of current to be tested, and is connected with two input ends of electric equipment to be tested together with the A, and the electric equipment is equivalent to a meter pen of a current gear of a universal meter; one end of the first light receiver U5-A is connected with a DIM _ PWM + end, and the other end of the first light receiver U5-A is connected with a DIM _ PWM-end; the DIM _ PWM + and the DIM _ PWM-are connected to the dimming input end of the device to be subjected to dimming control; one end of the second light emitter U6-B is connected with one end of the eleventh resistor R11, and the other end of the second light emitter U6-B is connected with DET _ IN-; the other end of the eleventh resistor R11 is connected with DET _ IN +; the DET _ IN + and the DET _ IN-are connected to the output end of other equipment together;

the electric quantity module U4 can measure the voltage and phase of the input signal VIN +/VIN-and the input current IIN +/IIN-, calculate the data such as output load power, power consumption and the like, and output the data to relevant equipment through LED display or wireless or wired output; the current application is mainly measurement; the utility model uses partial I/O port of the electric quantity module as the input detection of the output signal of the control output and other devices on the basis of measurement, changes the common electric quantity module into the dimming and electric quantity module with the check input, and creates the conditions for the integration of dimming and electric quantity and the automatic constant power control of the load; the high insulation isolation of three parts of dimming, electric quantity and input detection eliminates the potential safety hazard that an insulation system is damaged in complex application, and avoids the electric shock risk in application. For example, the electric quantity of the system or the load generally measures the alternating current, namely the primary side of an isolation power supply system accurately, the dimming control of the power supply generally has both the primary side and the secondary side, the output signals of other devices have both the primary side and the secondary side, and if the dimming, electric quantity and input detection parts are not subjected to high-insulation isolation processing, the original load or system is easy to generate, the insulation system is damaged due to the fact that the device is connected, and the insulation is changed into non-insulation.

The utility model discloses the main content is through adjusting luminance output and the detection input of adjusting luminance volume module keep apart the processing, has avoided the destroyed potential safety hazard of insulating system.

The electric quantity and dimming control two-in-one circuit comprises an insulation isolation power supply conversion module, wherein the dimming electric quantity module is connected with the insulation isolation power supply conversion module; -

Example 1 as an insulated isolated power conversion module:

the insulated isolation power conversion module comprises: the circuit comprises a first capacitor C1, a power supply IC U1, an isolation and energy conversion transformer T1, a diode D1, a second capacitor C2, a third resistor R5, a fourth resistor R6 and an optical coupler U2, wherein the optical coupler U2 comprises a light emitter U2-B and a light receiver U2-A; the GND end of the power supply IC U1 is connected with a primary ground GND; the SW end of the power supply IC U1 is connected with the isolation and energy conversion transformer T1; the VIN end of the power supply IC U1 is respectively connected with one end of the light receiver U2-A, the isolation and energy conversion transformer T1, the VIN end and one end of the first capacitor C1; one end of the first capacitor C1 is respectively connected with the VIN end, the isolation and energy conversion transformer T1, one end of a light receiver U2-A and the VIN end of the power supply IC U1, and the other end of the first capacitor C1 is grounded; the FB end of the power supply IC U1 is connected with the other end of the light receiver U2-A; the isolation and energy conversion transformer T1 is connected to secondary ground AGND; one end of the diode D1 is connected with the isolation and energy conversion transformer T1, and the other end of the diode D1 is connected with one end of the second capacitor C2, the end VOUT and one end of the third resistor R5 respectively; one end of the second capacitor C2 is connected to the other end of the diode D1, the terminal VOUT, and one end of the third resistor R5, respectively, and the other end of the second capacitor C2 is connected to a secondary ground AGND; one end of the third resistor R5 is connected to the other end of the diode D1, one end of the second capacitor C2 and the end VOUT respectively, and the other end of the third resistor R5 is connected to one end of the fourth resistor R6; the other end of the fourth resistor R6 is connected with secondary ground AGND;

in example 1, as shown in fig. 1, one end of the light emitter U2-B is connected between the third resistor R5 and the fourth resistor R6, and the other end of the light emitter U2-B is connected to the other end of the fourth resistor R6 and secondary AGND, respectively.

In example 1, as shown in fig. 2, as another implementation manner, one end of the light emitter U2-B is connected to one end of the third resistor R5, one end of VOUT, one end of the second capacitor C2, and the other end of the diode D1, respectively, and the other end of the light emitter U2-B is connected between the third resistor R5 and the fourth resistor R6.

Example 2 as an isolated power conversion module:

as shown in fig. 3, based on embodiment 1, the circuit includes a second transistor Q2, a base of the second transistor Q2 is connected between the third resistor R5 and the fourth resistor R6, an emitter of the second transistor Q2 is respectively connected to one end of the second capacitor C2, the other end of the diode D1, the terminal VOUT, and one end of the third resistor R5, a collector of the second transistor Q2 is connected to one end of the light emitter U2-B, and the other end of the light emitter U2-B is respectively connected to the other end of the fourth resistor R6 and the secondary ground AGND.

Example 3 as an insulated isolated power conversion module:

as shown in fig. 4, in embodiment 1, the circuit includes a voltage reference source IC U3, the 1 st pin of the voltage reference source IC U3 is connected to the secondary ground AGND and one end of the fourth resistor R6, the 3 rd pin of the voltage reference source IC U3 is connected between the third resistor R5 and the fourth resistor R6, the 2 nd pin of the voltage reference source IC U3 is connected to the other end of the light emitter U2-B, and one end of the light emitter U2-B is connected to one end of the third resistor R5, one end of VOUT, one end of the second capacitor C2, and the other end of the diode D1.

As shown in fig. 5, embodiment 4 as an insulated isolated power conversion module:

in addition to embodiment 3, the circuit further includes a seventh resistor R9, one end of the seventh resistor R9 is connected to the other end of the light emitter U2-B, and the other end of the seventh resistor R9 is connected to the 2 nd pin of the voltage reference source IC U3.

As shown in fig. 6, example 5 as an insulated isolated power conversion module:

in addition to embodiment 2, the circuit further includes a seventh resistor R9, one end of the seventh resistor R9 is connected to the other end of the light emitter U2-B, and the other end of the seventh resistor R9 is connected to the other end of the fourth resistor R6 and secondary ground AGND, respectively.

As shown in fig. 7, example 6 as an insulated isolated power conversion module:

on the basis of the embodiment 1, the circuit further comprises a second triode Q2, a voltage reference source IC U3, an eighth resistor R8 and a seventh resistor R9, wherein a 2 nd pin of the voltage reference source IC U3 is connected with one end of the eighth resistor R8;

a base electrode of the second triode Q2 is connected to the other end of the eighth resistor R8, an emitter electrode of the second triode Q2 is connected to one end of the second capacitor C2, the other end of the diode D1, the terminal VOUT, and one end of the third resistor R5, respectively, a collector electrode of the second triode Q2 is connected to one end of the light emitter U2-B, the other end of the light emitter U2-B is connected to one end of the seventh resistor R9, and the other end of the seventh resistor R9 is connected to the other end of the fourth resistor R6, the 1 st pin of the voltage reference source IC U3, and the secondary ground AGND, respectively;

the 1 st pin of the voltage reference source IC U3 is connected to the secondary ground AGND, the other end of the fourth resistor R6, and the other end of the seventh resistor R9, respectively, and the 3 rd pin of the voltage reference source IC U3 is connected between the third resistor R5 and the fourth resistor R6.

When the power supply is in operation, an input voltage is connected to VIN and primary ground GND, a first capacitor C1 plays a role in filtering, a power supply IC U1 is a power supply IC with an integrated power MOSFET or triode inside, and a circuit starting control signal is added to an enabling end EN of the power supply IC through a first resistor R1; when the circuit works, the energy converted by the isolation and energy conversion transformer T1 is rectified by a diode D1 and then is transmitted to a second capacitor C2 for filtering, and then VOUT and secondary ground AGND output a constant voltage; the third resistor R5 and the fourth resistor R6 form a voltage division sampling circuit of output voltage, sampled voltage signals are sent to a voltage reference source IC U3 for comparison and amplification, then the second triode Q2 is controlled to be conducted, and the eighth resistor R8 is a current-limiting resistor to prevent the U3 from being damaged by overlarge current; the seventh resistor R9 plays a role in current limiting and prevents the optocoupler U2 from being damaged due to overlarge current. A light receiver U2-A of the optocoupler U2 is conducted after receiving the optical signal, VIN is added to a switch control feedback pin FB of a power supply IC U1 through a second resistor R2, so that the U1 stops working or reduces output, and the purpose of voltage stabilization is achieved. The thirteenth resistor R3 is mainly used to ground the FB pin of U1 when the photodetector U2-a is turned off, so as to prevent the power IC U1 from malfunctioning due to an interference signal.

The utility model discloses the main content is through adopting high insulation to keep apart power conversion module, and carries out high insulation isolation to light modulation volume module and handle, provides the electric quantity and the two unification circuits of light modulation control that highly insulated was kept apart.

The insulation isolation power supply conversion module adopts an isolation and energy conversion transformer T1 for energy conversion, and voltage detection signals of an output part are fed back to a power supply IC U1 through a third optocoupler U2, so that complete isolation of input and output is ensured. In operation, the input voltage is coupled to VIN and primary ground GND, the first capacitor C1 acts as a filter, and the power IC U1 is a power IC with an integrated power MOSFET or transistor therein. When the circuit works, the energy converted by the isolation and energy conversion transformer T1 is rectified by a diode D1 and then filtered by a second capacitor C2, and then VOUT and secondary ground AGND output a constant voltage. The fifth resistor R5 and the sixth resistor R6 form a voltage division sampling circuit of output voltage, a sampled VOUT voltage signal is sent to a voltage reference source IC U3 to be compared and amplified, then the triode Q2 is controlled to be conducted, and the eighth resistor R8 is a current-limiting resistor to prevent the voltage reference source IC U3 from being damaged by overlarge current; if the circuit with low voltage precision requirement does not need a voltage reference source IC U3, the sampled voltage signal is directly sent to the base electrode of the triode Q2, the triode Q2 supplies power to the light emitter U2-B of the third optocoupler U2 after being conducted to enable the light emitter U2-B to emit a light signal to the light receiver U2-A, and the ninth resistor R9 plays a role in limiting current and prevents the third optocoupler U2 from being damaged due to overlarge current; if the output voltage is high, the transistor Q2 can be omitted, the light emitter U2-B and the ninth resistor R9 of the third optocoupler U2 are directly connected in series between the pin 2 of the voltage reference source IC U3 and VOUT, and the transistor Q2 can reduce the output voltage. And a light receiver U2-A of the third optocoupler U2 is switched on after receiving the optical signal, and VIN is added to a switch control feedback pin FB of the power supply IC U1 through a second resistor R2, so that the power supply IC U1 stops working or reduces output, and the purpose of voltage stabilization is achieved. The third resistor R3 mainly serves to ground the FB pin of the power IC U1 when the photodetector U2-a of the third optocoupler U2 is turned off, thereby preventing the power IC U1 from malfunctioning due to an interference signal.

When the electric quantity is measured, a voltage signal between A and B passes through the thirteenth resistor R13, is attenuated by the fourteenth resistor R14, is taken out from two ends of the fourteenth resistor R14, and is sent to voltage comparators VIN + and VIN-of the module U4, wherein VIN-is connected with an internal reference voltage source of the IC; the value of the twelfth resistor R12 is equal to that of the fourteenth resistor R14, so that the impedance matching function is achieved. R15 is a current sensing resistor, and B _ IN is synchronously connected to the LOAD through a fifteenth resistor R15, labeled B _ LOAD and A. The current consumed by the load during operation is sampled by the fifteenth resistor R15 and sent to the current comparators IIN + and IIN-of the module U4, where IIN-is connected to the IC internal reference voltage source. (e.g., when AC is connected, A is connected to L, B _ IN is connected to N, and B _ LOAD is connected to the point marked with N).

The external detection input of the control part of the electric quantity module U4 is isolated by the second optical coupler U6, and the output of the PWM dimming signal is isolated by the first optical coupler U5, so that the insulation performance of tapping different devices or different insulation regions of the devices is effectively ensured.

The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.

Claims

1. The utility model provides an electric quantity and two unification circuits of dimming control which characterized in that: the circuit integrating electricity quantity and dimming control comprises a dimming electricity quantity module, wherein the dimming electricity quantity module comprises a tenth resistor (R10), an eleventh resistor (R11), a twelfth resistor (R12), a thirteenth resistor (R13), a fourteenth resistor (R14), a fifteenth resistor (R15), an electricity quantity module (U4), a first optical coupler (U5) and a second optical coupler (U6), the first optical coupler (U5) comprises a first light emitter (U5-B) and a first light receiver (U5-A), and the second optical coupler (U6) comprises a second light emitter (U6-B) and a second light receiver (U6-A);

the PWM end of the electric quantity module (U4) is connected with one end of the tenth resistor (R10), and the other end of the tenth resistor (R10) is connected with one end of the first light-emitting device (U5-B);

the DET-IN end of the electric quantity module (U4) is connected with one end of the second light receiver (U6-A);

the GND end of the electric quantity module (U4) is respectively connected with the other end of a second light receiver (U6-A), a secondary ground AGND and the other end of the first light emitter (U5-B); the other end of the second light receiver (U6-A) is connected with the other end of the first light emitter (U5-B), and the other end of the second light receiver (U6-A) and the other end of the first light emitter (U5-B) are respectively connected with secondary AGND;

the VDD end of the electric quantity module (U4) is connected with the VMCU;

the VIN + end of the electric quantity module (U4) is respectively connected with one end of the thirteenth resistor (R13) and one end of the fourteenth resistor (R14), the other end of the thirteenth resistor (R13) is connected with A, and A is one terminal of the voltage to be measured;

a VIN end of the electric quantity module (U4) and an IIN end of the module (U4) are respectively connected with one end of a twelfth resistor (R12), the other end of the twelfth resistor (R12) is respectively connected with the other end of a fourteenth resistor (R14), the other end of a fifteenth resistor (R15) and a B _ IN end, and B _ IN is another point of voltage to be measured;

the other end of the fourteenth resistor (R14) is connected with the other end of the twelfth resistor (R12), the other end of the fifteenth resistor (R15) and a B _ IN end respectively;

the other end of the fifteenth resistor (R15) is respectively connected with the other end of the fourteenth resistor (R14), the other end of the twelfth resistor (R12) and a B _ IN end;

the IIN + end of the electric quantity module (U4) is respectively connected with one end of the fifteenth resistor (R15) and a B _ LOAD end, wherein the B _ LOAD end is used in a circuit to be tested, and is connected with two input ends of tested electric equipment together with the A;

one end of the first light receiver (U5-A) is connected with a DIM _ PWM + end, and the other end of the first light receiver (U5-A) is connected with a DIM _ PWM-end;

one end of the second light emitter (U6-B) is connected with one end of the eleventh resistor (R11), and the other end of the second light emitter (U6-B) is connected with DET _ IN-;

the other end of the eleventh resistor (R11) is connected to DET _ IN +.

2. The two-in-one circuit for power and dimming control according to claim 1, wherein: the electric quantity and dimming control two-in-one circuit comprises an insulation isolation power supply conversion module, wherein the dimming electric quantity module is connected with the insulation isolation power supply conversion module;

the insulation isolation power conversion module comprises a first capacitor (C1), a power IC (U1), an isolation and energy conversion transformer (T1), a diode (D1), a second capacitor (C2), a third resistor (R5), a fourth resistor (R6) and an optical coupler (U2), wherein the optical coupler (U2) comprises a light emitter (U2-B) and a light receiver (U2-A);

the GND end of the power supply IC (U1) is connected with a primary ground GND;

the SW terminal of the power supply IC (U1) is connected with the isolation and energy conversion transformer (T1);

the VIN end of the power supply IC (U1) is respectively connected with one end of the light receiver (U2-A), the isolation and energy conversion transformer (T1), the VIN end and one end of the first capacitor (C1);

one end of the first capacitor (C1) is respectively connected with the VIN end, the isolation and energy conversion transformer (T1), one end of the light receiver (U2-A) and the VIN end of the power supply IC (U1), and the other end of the first capacitor (C1) is grounded;

the FB end of the power supply IC (U1) is connected with the other end of the light receiver (U2-A);

said isolation and energy conversion transformer (T1) is connected to secondary ground AGND;

one end of the diode (D1) is connected with the isolation and energy conversion transformer (T1), and the other end of the diode (D1) is respectively connected with one end of the second capacitor (C2), the end VOUT and one end of the third resistor (R5);

one end of the second capacitor (C2) is respectively connected with the other end of the diode (D1), the end VOUT and one end of the third resistor (R5), and the other end of the second capacitor (C2) is connected with secondary ground AGND;

one end of the third resistor (R5) is respectively connected with the other end of the diode (D1), one end of the second capacitor (C2) and the end VOUT, and the other end of the third resistor (R5) is connected with one end of the fourth resistor (R6);

the other end of the fourth resistor (R6) is connected with secondary ground AGND;

one end of the light emitter (U2-B) is connected between the third resistor (R5) and the fourth resistor (R6), and the other end of the light emitter (U2-B) is respectively connected with the other end of the fourth resistor (R6) and AGND; or, one end of the light emitter (U2-B) is respectively connected with one end of the third resistor (R5), one end of VOUT, one end of the second capacitor (C2) and the other end of the diode (D1), and the other end of the light emitter (U2-B) is connected between the third resistor (R5) and the fourth resistor (R6).

3. The two-in-one circuit for power and dimming control according to claim 2, wherein: the insulation isolation power conversion module comprises a second triode (Q2), the base of the second triode (Q2) is connected between a third resistor (R5) and a fourth resistor (R6), the emitter of the second triode (Q2) is connected with one end of a second capacitor (C2), the other end of a diode (D1), the end VOUT and one end of the third resistor (R5) are connected, the collector of the second triode (Q2) is connected with one end of a light emitter (U2-B), and the other end of the light emitter (U2-B) is connected with the other end of the fourth resistor (R6) and a secondary ground AGND.

4. The two-in-one circuit for power and dimming control according to claim 2, wherein: the insulation isolation power conversion module comprises a voltage reference source IC (U3), wherein the 1 st pin of the voltage reference source IC (U3) is respectively connected with the AGND and the other end of the fourth resistor (R6), the 3 rd pin of the voltage reference source IC (U3) is connected between the third resistor (R5) and the fourth resistor (R6), the 2 nd pin of the voltage reference source IC (U3) is connected with the other end of the light emitter (U2-B), and one end of the light emitter (U2-B) is respectively connected with one end of the third resistor (R5), the VOUT end, one end of the second capacitor (C2) and the other end of the diode (D1).

5. The two-in-one circuit for power and dimming control according to claim 4, wherein: the insulation isolation power conversion module further comprises a seventh resistor (R9), one end of the seventh resistor (R9) is connected with the other end of the light emitter (U2-B), and the other end of the seventh resistor (R9) is connected with the No. 2 pin of the voltage reference source IC (U3).

6. The two-in-one circuit for power and dimming control according to claim 3, wherein: the insulation isolation power conversion module comprises a seventh resistor (R9), one end of the seventh resistor (R9) is connected with the other end of the light emitter (U2-B), and the other end of the seventh resistor (R9) is respectively connected with the other end of the fourth resistor (R6) and secondary ground AGND.

7. The two-in-one circuit for power and dimming control according to claim 2, wherein: the insulation isolation power supply conversion module comprises a second triode (Q2), a voltage reference source IC (U3), an eighth resistor (R8) and a seventh resistor (R9), wherein a 2 nd pin of the voltage reference source IC (U3) is connected with one end of the eighth resistor (R8);

a base electrode of the second triode (Q2) is connected with the other end of the eighth resistor (R8), an emitter electrode of the second triode (Q2) is respectively connected with one end of the second capacitor (C2), the other end of the diode (D1), a VOUT end and one end of the third resistor (R5), a collector electrode of the second triode (Q2) is connected with one end of the light emitter (U2-B), the other end of the light emitter (U2-B) is connected with one end of the seventh resistor (R9), and the other end of the seventh resistor (R9) is respectively connected with the other end of the fourth resistor (R6), the 1 st pin of the voltage reference source IC (U3) and AGND;

the 1 st pin of the voltage reference source IC (U3) is connected with AGND, the other end of the fourth resistor (R6) and the other end of a seventh resistor (R9) in a secondary mode respectively, and the 3 rd pin of the voltage reference source IC (U3) is connected between the third resistor (R5) and the fourth resistor (R6).