Intelligent power supply control module parameter test system

Abstract

The utility model discloses an intelligent power supply control module parameter test system, which comprises a module power supply and input and output detection signal circuit, a multi-module detection control circuit, a signal sampling circuit, a main control circuit, a communication circuit and a plurality of dimming control circuits, the module power supply and input and output detection signal circuit is connected with alternating current and is connected with the main control circuit; the multi-module detection control circuit is connected with the signal sampling circuit and the main control circuit and is used for controlling signal detection of a plurality of detected power supply control modules; the signal sampling circuit is connected with the main control circuit and is used for detecting analog signals under the same reference ground condition and different reference ground conditions; the dimming control circuit is connected with the main control circuit through the communication circuit; through the structure, the states of a plurality of power supply control modules with different dimming can be automatically collected, and various corresponding parameters are displayed on the LED display screen, so that whether the functions of the modules are normal or not is verified.

Description

Technical Field

[0001] The utility model relates to the technical field of LED dimming drive power supply and signal detection, in particular to an intelligent power supply control module parameter testing system. Background Art

[0002] With the continuous updating and development of LED dimming power supplies, the LED dimming power supplies on the market are becoming more and more diversified and miniaturized; module integration with different dimming functions has become the first choice of many designers. Not only can different products be designed faster using multifunctional integrated modules, but also space can be reasonably used to ensure the miniaturization of designed products; in production, the functional test of the module has become a very important part. The test of diversified functions will slow down the speed of producing and testing modules, which directly affects the efficiency of the entire production; therefore, there is an urgent need for an intelligent power control module parameter test system to solve the above problems. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes an intelligent power control module parameter testing system.

[0004] The technical solution adopted by an embodiment of the utility model to solve its technical problem is: an intelligent power control module parameter testing system, including a module power supply and input and output detection signal circuit, a multi-module detection control circuit, a signal sampling circuit, a main control circuit, a communication circuit and a plurality of dimming control circuits;

[0005] The module power supply and input / output detection signal circuit is connected to the AC and connected to the main control circuit, and is used to provide the power supply control module under test with power supply voltage, simulated input / output voltage signals and / or simulated input / output current signals;

[0006] The multi-module detection control circuit is connected to the signal sampling circuit and the main control circuit, and is used to control the signal detection of multiple power supply control modules under test;

[0007] The signal sampling circuit is connected to the main control circuit and is used to detect analog signals under the same reference ground condition and under different reference ground conditions;

[0008] The dimming control circuit is connected to the main control circuit via the communication circuit, and the power control modules under test with different dimming modes can switch different communication circuits to communicate with the main control circuit or dim the light.

[0009] As one of the preferred embodiments of the utility model, the module power supply and input and output detection signal circuit includes a module power supply control circuit, a bridge rectifier, an input voltage signal and analog input current signal circuit, and an output voltage signal and analog output current signal circuit;

[0010] The module power supply control circuit is connected between the main control circuit, the bridge rectifier and the AC power LN, and is used to control the power supply of the power control module under test;

[0011] The input voltage signal and simulated input current signal circuit is connected between the power supply control module under test and the bridge rectifier, and is used to provide the power supply control module under test with an input voltage signal and a simulated input current signal;

[0012] The output voltage signal and simulated output current signal circuit is connected between the power control module under test and the 5V power supply, and is used to provide the power control module under test with an output voltage signal and a simulated output current signal.

[0013] As one of the preferred embodiments of the present utility model, the module power supply control circuit includes a relay JK1, a MOS tube Q1 and a resistor R7, one end of the relay JK1 coil is connected to the power supply 5V, the other end of the relay JK1 coil is connected to the drain of the MOS tube Q1, one end of the relay JK1 contact is connected to the live wire L, the other end of the relay JK1 contact is connected to the input pin of the bridge rectifier, the source of the MOS tube Q1 is connected to the power supply 5V ground, the gate of the MOS tube Q1 is connected to one end of the resistor R7, and the other end of the resistor R7 is connected to the main control circuit.

[0014] As one of the preferred embodiments of the utility model, the input voltage signal and analog input current signal circuit includes a resistor R1 and a resistor R8, one end of the resistor R8 is connected to the neutral line N, the other end of the resistor R8 is connected to the power control module under test and one end of the resistor R1, and the other end of the resistor R1 is connected to the power control module under test and the input pin of the bridge rectifier.

[0015] As one of the preferred embodiments of the utility model, the output voltage signal and analog output current signal circuit includes a resistor R19 and a resistor R23, one end of the resistor R19 is connected to a 5V power supply and a power supply control module under test, the other end of the resistor R19 is connected to one end of the resistor R23 and the power supply control module under test, and the other end of the resistor R23 is connected to the ground SGND.

[0016] As one of the preferred embodiments of the utility model, the multi-module detection control circuit includes a resistor R25, a resistor R28, a resistor R30, a capacitor C9, a MOS tube Q2, a MOS tube Q3 and a relay JK5-JKn, one end of the relay JK5-JKn contact is connected to the power control module under test, the other end of the relay JK5-JKn contact is connected to the signal sampling circuit, one end of the relay JK5-JKn coil is grounded SGND, the other end of the relay JK5-JKn coil is connected to the drain of the MOS tube Q2, the source of the MOS tube Q2 and one end of the resistor R25 are connected to a 5V power supply, the gate of the MOS tube Q2 and the other end of the resistor R25 are connected to the drain of the MOS tube Q3, the source of the MOS tube Q3 and one end of the resistor R30 and one end of the capacitor C9 are connected to the ground SGND, one end of the resistor R28 is connected to the gate of the MOS tube Q3, the other end of the resistor R30 and the other end of the capacitor C9, and the other end of the resistor R28 is connected to the main control circuit.

[0017] As one of the preferred embodiments of the present utility model, the signal sampling circuit includes an analog signal sampling circuit with the same reference ground and an analog signal sampling circuit with different reference grounds;

[0018] The same reference ground analog signal sampling circuit includes a resistor R26, a resistor R27, and a resistor R29, one end of the resistor R26 is connected to the multi-module detection control circuit, the other end of the resistor R26 is connected to the resistor R27 and one end of the resistor R29, the other end of the resistor R29 is connected to the ground SGND, and the other end of the resistor R27 is connected to the main control circuit, for detecting the same reference ground analog signal sampling;

[0019] The analog signal sampling circuit with different reference grounds includes resistor R2, resistor R6, resistor R9 and optocoupler U1, one end of resistor R2 is connected to the multi-module detection control circuit, the other end of resistor R2 is connected to one end of the light emitter of optocoupler U1, the other end of the light emitter of optocoupler U1 is connected to a different reference ground, one end of the light emitter of optocoupler U1 is connected to a 3.3V power supply, the other end of the light emitter of optocoupler U1 is connected to one end of resistor R6 and resistor R9, the other end of resistor R9 is connected to ground SGND, and the other end of resistor R6 is connected to the main control circuit, which is used to detect analog signal sampling with different reference grounds.

[0020] As one of the preferred embodiments of the utility model, the main control circuit includes a dimming control and automatic test circuit, an LED display screen and a main control chip U2, and the dimming control and automatic test circuit and the LED display screen are connected to the main control chip U2.

[0021] As one of the preferred embodiments of the utility model, the dimming control and automatic test circuit includes a resistor R13, a resistor R3-5 and buttons S1-4, one end of the button S1, button S2, button S3, and button S4 are connected to a 3.3V power supply, and the other ends of the button S1, button S2, button S3, and button S4 are connected to the main control chip U2 via the resistor R13, resistor R3, resistor R4, and resistor R5 respectively.

[0022] As one of the preferred embodiments of the utility model, the dimming control circuit includes resistors R10-12, resistor R14, MOS tube Q4-7 and relay JK2-3, two common joints of the relay JK2 contact are connected to the power control module under test, two normally open joints of the relay JK2 contact are connected to the two common joints of the relay JK3 contact, a normally closed joint of the relay JK2 contact is connected to the communication circuit, one end of the relay JK2 coil is grounded SGND, and the other end is connected to the drain of the MOS tube Q4, the source of the MOS tube Q4 and one end of the resistor R10 are connected to the 5V power supply, and the gate of the MOS tube Q4 and the other end of the resistor R10 are connected to the drain of the MOS tube Q6 , the source of MOS tube Q6 is connected to ground SGND, one end of the gate of MOS tube Q6 is connected to resistor R12, the other end of resistor R12 is connected to the main control circuit, two normally open joints and two normally closed joints of relay JK3 contact are connected to the communication circuit, one end of relay JK3 coil is connected to ground SGND, and the other end is connected to the drain of MOS tube Q5, the source of MOS tube Q5 and one end of resistor R11 are connected to a 5V power supply, the gate of MOS tube Q5 and the other end of resistor R11 are connected to the drain of MOS tube Q7, the source of MOS tube Q7 is connected to ground SGND, one end of the gate of MOS tube Q7 is connected to resistor R14, and the other end of resistor R14 is connected to the main control circuit.

[0023] The beneficial effects of the utility model include: an intelligent power control module parameter testing system, comprising a module power supply and input-output detection signal circuit, a multi-module detection control circuit, a signal sampling circuit, a main control circuit, a communication circuit and a plurality of dimming control circuits; the module power supply and input-output detection signal circuit is connected to an alternating current and is connected to the main control circuit, and is used to provide a power supply voltage, a simulated input-output voltage signal and / or a simulated input-output current signal to the power control module under test; the multi-module detection control circuit is connected to the signal sampling circuit and the main control circuit, and is used to control the signal detection of a plurality of power control modules under test; the signal sampling circuit is connected to the main control circuit, and is used to detect analog signals under the same reference ground conditions and under different reference ground conditions; the dimming control circuit is connected to the main control circuit via the communication circuit, and the power control modules under test with different dimming modes can switch different communication circuits to communicate or dim with the main control circuit; the above structure can automatically collect the states of a plurality of power control modules with different dimming modes, and display various corresponding parameters on an LED display screen, thereby verifying whether the functions of the modules are normal. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0025] Figure 1 It is a principle block diagram of an intelligent power control module parameter test system;

[0026] Figure 2 It is a circuit schematic diagram of an intelligent power control module parameter testing system;

[0027] Figure 3 The circuit schematic diagram for powering the module and inputting and outputting detection signal circuits;

[0028] Figure 4 It is a circuit schematic diagram of a multi-module detection control circuit;

[0029] Figure 5 is the circuit schematic diagram of the signal sampling circuit;

[0030] Figure 6 The circuit schematic diagram of the main control circuit;

[0031] Figure 7 This is the circuit schematic diagram of the dimming control circuit. DETAILED DESCRIPTION

[0032] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0033] In the description of the present utility model, the meaning of "more than" is more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0034] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0035] In the present invention, unless otherwise clearly defined, the words "set", "install", "connect" and the like should be understood in a broad sense, for example, they can be directly connected or indirectly connected through an intermediate medium; they can be fixedly connected or detachably connected or integrally formed; they can be mechanically connected; they can be the internal connection of two elements or the interaction relationship between two elements. Those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0036] Reference Figures 1 to 7 , an intelligent power control module parameter testing system, including a module power supply and input and output detection signal circuit 10, a multi-module detection control circuit 20, a signal sampling circuit 30, a main control circuit 40, a communication circuit 50 and a plurality of dimming control circuits 60;

[0037] The module power supply and input / output detection signal circuit 10 is connected to the AC and connected to the main control circuit 40, and is used to provide the power supply control module 70 under test with a power supply voltage, simulated input / output voltage signals and / or simulated input / output current signals;

[0038] The multi-module detection control circuit 20 is connected to the signal sampling circuit 30 and the main control circuit 40, and is used to control the signal detection of multiple power control modules 70 under test;

[0039] The signal sampling circuit 30 is connected to the main control circuit 40 and is used to detect analog signals under the same reference ground condition and under different reference ground conditions;

[0040] The dimming control circuit 60 is connected to the main control circuit 40 via the communication circuit 50 , and the tested power control module 70 with different dimming modes can switch different communication circuits 50 to communicate with the main control circuit 40 or dim the light.

[0041] In this utility model, the working principle is as follows:

[0042] ①Reference Figure 1-2 6. After the corresponding button in the dimming control and automatic test circuit 41 provides a signal to the main control chip U2 according to different dimming selections, the main control circuit 40 opens the relays in different dimming control circuits 60 through corresponding instructions. At the same time, the mains L and N enter the module power supply and input-output detection signal circuit 10. The module power supply and input-output detection signal circuit 10 supplies power to the power control module 70 under test. If the power control module 70 under test has input detection and output detection functions, it provides simulated input-output voltage signals and simulated input-output current signals at the same time.

[0043] ②Reference Figure 1-24. The main control circuit 40 opens the multi-module detection control circuit 20 through corresponding instructions. The different measured signals of the measured power control module 70 enter the signal sampling circuit 30 after passing through the multi-module detection control circuit 20. After being processed, the signal enters the main control circuit 40, and the main control circuit 40 transmits the corresponding parameters to the LED display.

[0044] ③Reference Figure 1-2 The power control module 70 under test enters the communication circuit 50 through different dimming control circuits 60, and the communication circuit 50 is then connected to the main control circuit 40 to realize the transmission and reception of communication signals between the power control module 70 under test and the main control circuit 40.

[0045] ④Reference Figure 1-3 The module power supply and input / output detection signal circuit 10 is used to supply power to the power control module 70 under test, and to provide simulated input / output voltage signals and simulated input / output current signals to the power control module 70 under test with input / output detection function; the module power supply and input / output detection signal circuit 10 includes a module power supply control circuit 11, a bridge rectifier, an input voltage signal and simulated input current signal circuit 12, and an output voltage signal and simulated output current signal circuit 13;

[0046] The module power supply control circuit 11 is connected between the main control circuit 40, the bridge rectifier and the AC power LN, and is used to control the power supply of the power control module 70 under test;

[0047] The input voltage signal and simulated input current signal circuit 12 is connected between the power control module 70 under test and the bridge rectifier, and is used to provide the power control module 70 under test with an input voltage signal and a simulated input current signal;

[0048] The output voltage signal and simulated output current signal circuit 13 is connected between the power control module 70 under test and the 5V power supply, and is used to provide the power control module 70 under test with an output voltage signal and a simulated output current signal.

[0049] As a preferred embodiment of the module power supply control circuit 11, the module power supply control circuit 11 includes a relay JK1, a MOS tube Q1 and a resistor R7, one end of the relay JK1 coil is connected to the power supply 5V, the other end of the relay JK1 coil is connected to the drain of the MOS tube Q1, one end of the relay JK1 contact is connected to the live wire L, the other end of the relay JK1 contact is connected to the input pin of the bridge rectifier, the source of the MOS tube Q1 is connected to the power supply 5V ground, the gate of the MOS tube Q1 is connected to one end of the resistor R7, and the other end of the resistor R7 is connected to the main control circuit 40.

[0050] As a preferred embodiment of the input voltage signal and analog input current signal circuit 12, the input voltage signal and analog input current signal circuit 12 includes a resistor R1 and a resistor R8, one end of the resistor R8 is connected to the neutral line N, the other end of the resistor R8 is connected to the power control module 70 under test and one end of the resistor R1, and the other end of the resistor R1 is connected to the power control module 70 under test and the input pin of the bridge rectifier.

[0051] As a preferred embodiment of the output voltage signal and analog output current signal circuit 13, the output voltage signal and analog output current signal circuit 13 includes a resistor R19 and a resistor R23, one end of the resistor R19 is connected to a 5V power supply and a power supply control module 70 under test, the other end of the resistor R19 is connected to one end of the resistor R23 and the power supply control module 70 under test, and the other end of the resistor R23 is connected to the ground SGND.

[0052] Specifically, the main control circuit 40 opens the relay JK1 through the corresponding instructions, and the city power L and N enter the rectifier bridge BD1 through the relay JK1 for rectification and then supply power to the power control module 70 under test; at the same time, the AC power from the relay JK1 is directly connected to the power control module 70 under test, providing an input voltage signal to the power control module 70 under test, and the AC power from the relay JK1 enters the voltage divider through the resistor R1 and the resistor R8 and then connects to the power control module 70 under test, providing a simulated input current signal to the power control module 70 under test; the power supply 5V is directly connected to the power control module 70 under test, providing an output voltage signal to the power control module 70 under test, and the 5V power supply provides a simulated output current signal to the power control module 70 under test through the voltage divider of the resistor R19 and the resistor R23.

[0053] ⑤Reference Figure 1-2 4. The multi-module detection control circuit 20 is used to control the detection of multiple signals of the power control module 70 under test. The multi-module detection control circuit 20 includes a resistor R25, a resistor R28, a resistor R30, a capacitor C9, a MOS tube Q2, a MOS tube Q3 and relays JK5-JKn. One end of the contact of the relay JK5-JKn is connected to the power control module 70 under test, and the other end of the contact of the relay JK5-JKn is connected to the signal sampling circuit 30. One end of the coil of the relay JK5-JKn is grounded SGN D, the other end of the coil of relay JK5-JKn is connected to the drain of MOS tube Q2, the source of MOS tube Q2 and one end of resistor R25 are connected to a 5V power supply, the gate of MOS tube Q2 and the other end of resistor R25 are connected to the drain of MOS tube Q3, the source of MOS tube Q3 and one end of resistor R30 and one end of capacitor C9 are connected to ground SGND, one end of resistor R28 is connected to the gate of MOS tube Q3, the other end of resistor R30 and the other end of capacitor C9, and the other end of resistor R28 is connected to the main control circuit 40;

[0054] Specifically, the main control circuit 40 turns on the MOS tube Q3 through the corresponding instructions. After the MOS tube Q3 is turned on, the gate of the MOS tube Q2 is pulled to a low level, thereby turning on the MOS tube Q2. The power supply 5V enters one end of the coil of the relay JK5-JKn through the MOS tube Q2, thereby opening multiple relays JK5-JKn. The signal of the power control module 70 under test enters the analog signal sampling circuit 31 with the same reference ground and the analog signal sampling circuit 32 with different reference grounds through the relay for signal processing; if there are multiple power control modules 70 under test for detection, only n multi-module detection control circuits 20 need to be added.

[0055] ⑥Reference Figure 1-2 5. The signal sampling circuit 30 processes the signal from the power control module 70 under test and transmits the processed signal to the main control circuit 40. The signal sampling circuit 30 includes an analog signal sampling circuit 31 with the same reference ground and an analog signal sampling circuit 32 with different reference grounds.

[0056] The same reference ground analog signal sampling circuit 31 includes a resistor R26, a resistor R27, and a resistor R29, one end of the resistor R26 is connected to the multi-module detection control circuit 20, the other end of the resistor R26 is connected to the resistor R27 and one end of the resistor R29, the other end of the resistor R29 is connected to the ground SGND, and the other end of the resistor R27 is connected to the main control circuit 40, for detecting the analog signal sampling of the same reference ground;

[0057] The analog signal sampling circuit 32 with different reference grounds includes a resistor R2, a resistor R6, a resistor R9 and an optocoupler U1, one end of the resistor R2 is connected to the multi-module detection control circuit 20, the other end of the resistor R2 is connected to one end of the light emitter of the optocoupler U1, the other end of the light emitter of the optocoupler U1 is connected to a different reference ground, one end of the light emitter of the optocoupler U1 is connected to a 3.3V power supply, the other end of the light emitter of the optocoupler U1 is connected to one end of the resistor R6 and the resistor R9, the other end of the resistor R9 is connected to the ground SGND, and the other end of the resistor R6 is connected to the main control circuit 40, which is used to detect the analog signal sampling with different reference grounds; when there are multiple signals, only n analog signal sampling circuits 32 with different reference grounds need to be added.

[0058] ⑦Reference Figure 1-2 6. The main control circuit 40 is used to control the communication of different dimming modules and the power supply of the power control module 70 under test, control the sampling of different signals, process and display different sampled signals and other related controls. The main control circuit 40 includes a dimming control and automatic test circuit 41, an LED display screen 42 and a main control chip U2. The dimming control and automatic test circuit 41 and the LED display screen 42 are connected to the main control chip U2;

[0059] As a preferred embodiment of the dimming control and automatic test circuit 41, the dimming control and automatic test circuit 41 includes resistor R13, resistor R3-5 and buttons S1-4, one end of button S1, button S2, button S3, button S4 is connected to a 3.3V power supply, and the other end of button S1, button S2, button S3, button S4 is connected to the main control chip U2 via resistor R13, resistor R3, resistor R4, resistor R5 respectively.

[0060] Specifically, the dimming control and automatic test circuit 41 sends signals to the main control chip U2 through different buttons to determine the dimming mode of the power control module 70 under test, including 0-10V, DMX and DAL I (D4 I). The main control chip U2 sends corresponding instructions to open relay JK2 or JK3, thereby realizing the connection between the power control module 70 under test and the communication circuit 50, and realizing the communication between the power control module 70 under test and the main control circuit 40. At the same time, some relevant data of the power control module 70 under test can also be read and displayed on the LED display screen; the main control chip U2 will also read the signal of the signal sampling circuit 30, and display it on the LED display screen after processing.

[0061] ⑧Reference Figure 1-2 , 7, the dimming control circuit 50 is used to receive the signal provided by the main control circuit 40, open the relay JK2 or JK3 to realize different dimming modes and communication. As a preferred embodiment of the dimming control circuit 60, the dimming control circuit 60 includes resistors R10-12, resistor R14, MOS tube Q4-7 and relay JK2-3, the two common joints of the relay JK2 contact are connected to the power control module 70 under test, the two normally open joints of the relay JK2 contact are connected to the two common joints of the relay JK3 contact, and a normally closed joint of the relay JK2 contact is connected to the communication circuit 50, one end of the relay JK2 coil is grounded SGND, and the other end is connected to the drain of the MOS tube Q4, the source of the MOS tube Q4 and one end of the resistor R10 are connected to the 5V power supply, MO The gate of the S transistor Q4 and the other end of the resistor R10 are connected to the drain of the MOS transistor Q6, the source of the MOS transistor Q6 is connected to the ground SGND, the gate of the MOS transistor Q6 is connected to one end of the resistor R12, the other end of the resistor R12 is connected to the main control circuit 40, the two normally open joints and the two normally closed joints of the relay JK3 contact are connected to the communication circuit 50, one end of the relay JK3 coil is connected to the ground SGND, and the other end is connected to the drain of the MOS transistor Q5, the source of the MOS transistor Q5 and one end of the resistor R11 are connected to a 5V power supply, the gate of the MOS transistor Q5 and the other end of the resistor R11 are connected to the drain of the MOS transistor Q7, the source of the MOS transistor Q7 is connected to the ground SGND, the gate of the MOS transistor Q7 is connected to one end of the resistor R14, and the other end of the resistor R14 is connected to the main control circuit 40;

[0062] Specifically, the main control circuit 40 identifies the dimming mode of the power control module 70 under test by receiving the signal of the dimming control and automatic test circuit 41, and sends a corresponding instruction to turn on the MOS tube Q6 or the MOS tube Q7. After the MOS tube Q6 or the MOS tube Q7 is turned on, the gate of the MOS tube Q4 or the MOS tube Q5 is pulled to a low level, thereby turning on the MOS tube Q4 or the MOS tube Q5, and the 5V power supply enters one end of the coil of the relay JK2 or the relay JK3 through the MOS tube Q4 or the MOS tube Q5, thereby turning on the relay JK2 or the relay JK3, so that the power control module 70 under test is connected to the communication circuit 50, thereby realizing the communication and dimming between the power control module 70 under test and the main control circuit 40.

[0063] ⑨ The advantage of the utility model is that: through the above structure, the status of multiple power control modules with different dimming can be automatically collected, and various corresponding parameters can be displayed on the LED display screen, so as to verify whether the function of the module is normal.

[0064] Of course, the present invention is not limited to the above-mentioned embodiments, and technicians familiar with the field may make equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications and substitutions are all included in the scope defined by the claims of this application.

Claims

1. An intelligent power control module parameter testing system, characterized in that: It comprises a module power supply and input / output detection signal circuit (10), a multi-module detection control circuit (20), a signal sampling circuit (30), a main control circuit (40), a communication circuit (50) and a plurality of dimming control circuits (60); The module power supply and input / output detection signal circuit (10) is connected to an alternating current and is connected to a main control circuit (40) and is used to provide a power supply voltage, simulated input / output voltage signals and / or simulated input / output current signals to the power control module (70) under test; The multi-module detection control circuit (20) is connected to the signal sampling circuit (30) and the main control circuit (40) and is used to control the signal detection of multiple tested power supply control modules (70); The signal sampling circuit (30) is connected to the main control circuit (40) and is used to detect analog signals under the same reference ground condition and under different reference ground conditions; The dimming control circuit (60) is connected to the main control circuit (40) via the communication circuit (50), and the tested power supply control module (70) with different dimming modes can switch different communication circuits (50) to communicate with the main control circuit (40) or dim the light.

2. The intelligent power control module parameter testing system according to claim 1, characterized in that: The module power supply and input / output detection signal circuit (10) comprises a module power supply control circuit (11), a bridge rectifier, an input voltage signal and analog input current signal circuit (12), and an output voltage signal and analog output current signal circuit (13); The module power supply control circuit (11) is connected between the main control circuit (40), the bridge rectifier and the alternating current LN, and is used to control the power supply of the power supply control module (70) under test; The input voltage signal and simulated input current signal circuit (12) is connected between the power supply control module (70) under test and the bridge rectifier, and is used to provide the power supply control module (70) under test with an input voltage signal and a simulated input current signal; The output voltage signal and simulated output current signal circuit (13) is connected between the power supply control module (70) under test and the 5V power supply, and is used to provide the power supply control module (70) under test with an output voltage signal and a simulated output current signal.

3. The intelligent power control module parameter testing system according to claim 2, characterized in that: The module power supply control circuit (11) comprises a relay JK1, a MOS tube Q1 and a resistor R7, one end of the relay JK1 coil is connected to a power supply 5V, the other end of the relay JK1 coil is connected to a drain of the MOS tube Q1, one end of the relay JK1 contact is connected to a live wire L, the other end of the relay JK1 contact is connected to an input pin of the bridge rectifier, the source of the MOS tube Q1 is connected to a ground of the power supply 5V, the gate of the MOS tube Q1 is connected to one end of the resistor R7, and the other end of the resistor R7 is connected to the main control circuit (40).

4. The intelligent power control module parameter testing system according to claim 2, characterized in that: The input voltage signal and analog input current signal circuit (12) comprises a resistor R1 and a resistor R8, one end of the resistor R8 is connected to a zero line N, the other end of the resistor R8 is connected to a power control module (70) under test and one end of the resistor R1, and the other end of the resistor R1 is connected to the power control module (70) under test and an input pin of the bridge rectifier.

5. The intelligent power control module parameter testing system according to claim 2, characterized in that: The output voltage signal and analog output current signal circuit (13) comprises a resistor R19 and a resistor R23, one end of the resistor R19 is connected to a 5V power supply and a power supply control module (70) under test, the other end of the resistor R19 is connected to one end of the resistor R23 and the power supply control module (70) under test, and the other end of the resistor R23 is connected to a ground SGND.

6. The intelligent power control module parameter testing system according to claim 1, characterized in that: The multi-module detection control circuit (20) comprises a resistor R25, a resistor R28, a resistor R30, a capacitor C9, a MOS transistor Q2, a MOS transistor Q3 and relays JK5-JKn, one end of the contact of the relay JK5-JKn is connected to the power control module (70) to be tested, the other end of the contact of the relay JK5-JKn is connected to the signal sampling circuit (30), one end of the coil of the relay JK5-JKn is grounded SGND, the other end of the coil of the relay JK5-JKn is connected to the drain of the MOS transistor Q2, the source of the MOS transistor Q2 and one end of the resistor R25 are connected to a 5V power supply, the gate of the MOS transistor Q2 and the other end of the resistor R25 are connected to the drain of the MOS transistor Q3, the source of the MOS transistor Q3 and one end of the resistor R30 and one end of the capacitor C9 are connected to the ground SGND, one end of the resistor R28 is connected to the gate of the MOS transistor Q3, the other end of the resistor R30 and the other end of the capacitor C9, and the other end of the resistor R28 is connected to the main control circuit (40).

7. The intelligent power control module parameter testing system according to claim 1, characterized in that: The signal sampling circuit (30) comprises an analog signal sampling circuit (31) with the same reference ground and an analog signal sampling circuit (32) with different reference grounds; The same reference ground analog signal sampling circuit (31) comprises a resistor R26, a resistor R27, and a resistor R29, one end of the resistor R26 is connected to the multi-module detection control circuit (20), the other end of the resistor R26 is connected to the resistor R27 and one end of the resistor R29, the other end of the resistor R29 is connected to the ground SGND, and the other end of the resistor R27 is connected to the main control circuit (40), and is used for detecting the analog signal sampling of the same reference ground; The different reference ground analog signal sampling circuit (32) comprises a resistor R2, a resistor R6, a resistor R9 and an optocoupler U1, one end of the resistor R2 is connected to the multi-module detection control circuit (20), the other end of the resistor R2 is connected to one end of the light emitter of the optocoupler U1, the other end of the light emitter of the optocoupler U1 is connected to a different reference ground, one end of the light emitter of the optocoupler U1 is connected to a 3.3V power supply, the other end of the light emitter of the optocoupler U1 is connected to one end of the resistor R6 and the resistor R9, the other end of the resistor R9 is connected to the ground SGND, and the other end of the resistor R6 is connected to the main control circuit (40), and is used for detecting the analog signal sampling of different reference grounds.

8. The intelligent power control module parameter testing system according to claim 1, characterized in that: The main control circuit (40) comprises a dimming control and automatic test circuit (41), an LED display screen (42) and a main control chip U2; the dimming control and automatic test circuit (41) and the LED display screen (42) are connected to the main control chip U2.

9. The intelligent power control module parameter testing system according to claim 8, characterized in that: The dimming control and automatic test circuit (41) comprises a resistor R13, a resistor R3-5 and buttons S1-4, wherein one end of the buttons S1, S2, S3 and S4 are connected to a 3.3V power supply, and the other ends of the buttons S1, S2, S3 and S4 are connected to the main control chip U2 via the resistor R13, the resistor R3, the resistor R4 and the resistor R5 respectively.

10. The intelligent power control module parameter testing system according to claim 1, characterized in that: The dimming control circuit (60) comprises resistors R10-12, a resistor R14, a MOS tube Q4-7 and a relay JK2-3, two common joints of the contacts of the relay JK2 are connected to the power control module (70) to be tested, two normally open joints of the contacts of the relay JK2 are connected to two common joints of the contacts of the relay JK3, a normally closed joint of the contacts of the relay JK2 is connected to the communication circuit (50), one end of the coil of the relay JK2 is grounded SGND and the other end is connected to the drain of the MOS tube Q4, the source of the MOS tube Q4 and one end of the resistor R10 are connected to a 5V power supply, the gate of the MOS tube Q4 and the other end of the resistor R10 are connected to the drain of the MOS tube Q6, and the source of the MOS tube Q6 is connected to the ground SGND. The gate of the MOS tube Q6 is connected to the ground SGND, one end of the resistor R12 is connected, and the other end of the resistor R12 is connected to the main control circuit (40), two normally open joints and two normally closed joints of the contact of the relay JK3 are connected to the communication circuit (50), one end of the coil of the relay JK3 is connected to the ground SGND, and the other end is connected to the drain of the MOS tube Q5, the source of the MOS tube Q5 and one end of the resistor R11 are connected to a 5V power supply, the gate of the MOS tube Q5 and the other end of the resistor R11 are connected to the drain of the MOS tube Q7, the source of the MOS tube Q7 is connected to the ground SGND, one end of the gate of the MOS tube Q7 is connected to the resistor R14, and the other end of the resistor R14 is connected to the main control circuit (40).

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