Multi-output-mode three-path constant-current dimming and toning power supply with D4I function

Abstract

The utility model discloses a multi-output-mode three-path constant-current light and color modulation power supply with a D4I function. Comprising an EMC rectification filtering module, a power factor correction module, an input end detection module, a power supply module, a bus power supply module, an MCU module, an external temperature detection module, an internal temperature detection module, a DAL I communication module, an NFC module, a first BUCK power module, a second BUCK power module, a third BUCK power module, a first output current detection module and a second output current detection module. A third output current detection module and an output voltage detection module; through the circuit, the functions of energy consumption, fault diagnosis data, a bus power supply, memory strip expansion, an auxiliary power supply and the like can be provided, meanwhile, three paths of constant current output are independently controlled, and the output mode of the power supply and the output current and voltage parameters can be changed under the function setting of the NFC module. Functions of the power supply are enriched, and the power supply is compatible with more scene applications.

Description

Technical Field

[0001] The utility model relates to the field of LED intelligent dimming and color adjustment power supply, in particular to a three-way constant current dimming and color adjustment power supply with multiple output modes and D4I functions. Background Art

[0002] The booming LED lighting industry is placing increasingly stringent demands on the functionality of LED power supplies. DALI communication is gaining market recognition as a digital dimming method. D4i, an upgrade from DAL12, adds features such as input electrical parameter detection (voltage, current, PF, active power, apparent power), output voltage and current detection, output power detection, external lamp temperature detection, auxiliary power output, and DAL1 bus power output. It allows for querying the power supply's operating status and offers a wide range of other functions. Using smart devices, the power supply's three output modes can be configured to accommodate RGB, CW, DIM, and other output dimming modes. However, three-way constant-current power supplies with D4i functionality and multiple output modes are not yet available in the LED market. Therefore, a three-way constant-current dimming and color-adjusting power supply with D4i functionality and multiple output modes is urgently needed to address these challenges. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems in the prior art. To this end, the present invention provides a three-way constant current dimming and color adjustment power supply with a multi-output mode and a D4I function.

[0004] An embodiment of the present invention solves the technical problem thereof by adopting a technical solution: a three-way constant current dimming and color adjustment power supply with a multi-output mode and a D4I function, comprising an EMC rectifier and filter module, a power factor correction module, an input end detection module, a power supply module, a bus power supply module, an MCU module, an external temperature detection module, an internal temperature detection module, a DAL I communication module, an NFC module, a first BUCK power module, a second BUCK power module, a third BUCK power module, a first output current detection module, a second output current detection module, a third output current detection module, and an output voltage detection module;

[0005] The input detection module is connected to the external power supply, power supply module, EMC rectifier filter module and MCU module respectively;

[0006] The output end of the EMC rectifier and filter module is connected to the first buck power module, the second buck power module, the third buck power module, the power supply module, the output voltage detection module, and the LED+ end via the power factor correction module;

[0007] The power supply module is used to supply power to the subsequent circuit;

[0008] The first output terminal of the MCU module is connected to the LED1-terminal via the first buck power module and the first output current detection module, the second output terminal is connected to the LED2-terminal via the second buck power module and the second output current detection module, and the third output terminal is connected to the LED3-terminal via the third buck power module and the third output current detection module. The MCU module is also connected to the output voltage detection module and the DAL 1 communication module respectively. The LED lamp is connected between the LED+ terminal, the LED1-terminal, the LED2-terminal, and / or the LED3-terminal.

[0009] DAL I communication module and bus power supply module are connected to the external DAL I system;

[0010] The external temperature detection module is connected to the MCU module and is used to detect the external temperature of the power supply;

[0011] The internal temperature detection module is connected to the MCU module and is used to detect the internal temperature of the power supply;

[0012] The NFC module is connected to the MCU module to adjust the output mode.

[0013] As one of the preferred embodiments of the present invention, the input end detection module includes a resistor R011, a resistor R012, a resistor R013, a resistor R014, a resistor R015, a resistor R016, a resistor R017, a capacitor C011, a capacitor C012, a capacitor C013, a capacitor C014, an optocoupler U012, an optocoupler U013 and a control chip U011;

[0014] One end of the resistor R011 is connected to one end of the external power supply, the resistor R012, the capacitor C104, the capacitor C105, the 3rd pin of the optocoupler U012 and the 4th pin of the optocoupler U101, the other end of the resistor R011 is connected to the resistor R103 and the EMC rectifier filter module, the other end of the resistor R012 is connected to the 2nd pin of the control chip U011 and the other end of the capacitor C012; the other end of the resistor R103 is connected to the 1st pin of the optocoupler U012 and the other end of the capacitor C011; one end of the resistor R014 is connected to the other end of the external power supply, the other end of the resistor R014 is connected to the other end of the resistor R015, the other end of the capacitor C013 and the 3rd pin of the control chip U011; the control chip Pin 5 of chip U011 is connected to the other end of capacitor C015, pin 6 of control chip U011 is connected to pin 2 of optocoupler U013, pin 7 of control chip U011 is connected to one end of resistor R016, pin 7 of control chip U011 is connected to pin 4 of optocoupler U012, pin 8 of control chip U011 is connected to capacitor C014, resistor R016, and resistor R017; pin 1 of optocoupler U012, pin 2 of optocoupler U012, pin 3 of optocoupler U013, and pin 4 of optocoupler U013 are connected to the MCU module, and pin 1 of optocoupler U013 is connected to the other end of resistor R017.

[0015] As one of the preferred embodiments of the present invention, the MCU module includes a resistor R081, a resistor R082, a resistor R083, a resistor R084, a resistor R085, a capacitor C081, a capacitor C082 and a control chip U081;

[0016] Pin 2 of the control chip U081 is connected to the GND terminal, pin 3 of the control chip U081 is connected to the resistor R081, the resistor R082 and the VDD terminal, the other end of the resistor R081 and the other end of the resistor R082 are connected to the input detection module, pin 5 of the control chip U081 is connected to the input detection module, pin 9 of the control chip U081 is connected to the external temperature detection module, pin 10 of the control chip U081 is connected to the internal temperature detection module, pins 11, 12 and 13 of the control chip U081 are connected to the NFC module, pin 18 of the control chip U081 is connected to one end of the capacitor C081 and the DAL I communication module through the resistor R084, the other end of the capacitor C081 is connected to the GND terminal, and pin 19 of the control chip U081 is connected to one end of the resistor R083, one end of the capacitor C082 and the DAL I communication module, the other end of resistor R083 is connected to the power supply module, and the other end of capacitor C082 is connected to the GND terminal; pin 20 of the control chip U081 is connected to the bus power supply module via resistor R085, pins 23, 24, 25, and 26 of the control chip U081 are connected to the output voltage detection module, pins 27, 28, and 29 of the control chip U081 are connected to the first output current detection module, the second output current detection module, and the third output current detection module, and pins 30, 31, and 32 of the control chip U081 are connected to the first buck power module, the second buck power module, and the third buck power module.

[0017] As one of the preferred embodiments of the present utility model, the external temperature detection module includes a resistor R091, a thermistor NTC1, a capacitor C091, a diode D091 and a diode D092;

[0018] One end of the resistor R091 and one end of the diode D091 are connected to the VDD terminal, the other end of the resistor R091 and the other end of the diode D091 are connected to one end of the thermistor NTC1, one end of the capacitor C091, one end of the diode D092 and the MCU module, and the other end of the thermistor NTC1, the other end of the capacitor C091 and the other end of the diode D092 are connected to the GND terminal.

[0019] As one of the preferred embodiments of the present utility model, the internal temperature detection module includes a resistor R101, a resistor R102, a capacitor C101 and a thermistor NTC2, one end of the resistor R101 is connected to the VDD end, the other end of the resistor R101 is connected to the resistor R102, the thermistor NTC2, one end of the capacitor C101 and the MUC module, and the other end of the resistor R102, the thermistor NTC2 and the capacitor C101 is connected to the GND end.

[0020] As one of the preferred embodiments of the present invention, the bus power supply module includes a resistor R131, a resistor R132, a resistor R133, a resistor R134, a diode D131, a voltage regulator diode DZ131, an optocoupler U131, a control chip U132 and a MOS tube Q131;

[0021] Pins 1 and 2 of the optocoupler U131 are connected to the MCU module, pin 3 of the optocoupler U131 is connected to the cathode of the control chip U132, the gate of the MOS tube Q131, and one end of the resistor R132, pin 4 of the optocoupler U131 is connected to the cathode of the voltage-stabilizing diode DZ131 and one end of the resistor R131, the anode of the diode D131 is connected to the anode of the control chip U132, one end of the resistor R133, and one end of the resistor R134, the reference electrode of the control chip U132 is connected to one end of the resistor R132, the other end of the resistor R133, the other end of the resistor R134, and the source of the MOS tube Q131, the drain of the MOS tube Q131 and the other end of the resistor R131 are connected to the 24V+ terminal, and the anode of the voltage-stabilizing diode DZ131 is connected to the S-GND terminal.

[0022] As one of the preferred embodiments of the present utility model, the output voltage detection module includes a resistor R171, a resistor R172, a resistor R173, a resistor R174, a resistor R175, a resistor R176, a resistor R177, a resistor R178, a capacitor C171, a capacitor C172, a capacitor C173 and a capacitor C174;

[0023] One end of the resistor R172 is connected to the VBUS terminal, and the other end of the resistor R172 is connected to one end of the resistor R171, one end of the capacitor C171 and the MCU module respectively. The other end of the resistor R171 and the other end of the capacitor C171 are connected to the GND terminal. One end of the resistor R173 is connected to the LED1- terminal, and the other end of the resistor R173 is connected to one end of the resistor R174, one end of the capacitor C172 and the MCU module respectively. The other end of the resistor R174 and the other end of the capacitor C172 are connected to the GND terminal. , one end of the resistor R175 is connected to the LED2-end, the other end of the resistor R175 is respectively connected to one end of the resistor R176, one end of the capacitor C173 and the MCU module, the other end of the resistor R176 and the other end of the capacitor C173 are connected to the GND end; one end of the resistor R177 is connected to the LED3-end, the other end of the resistor R177 is respectively connected to one end of the resistor R178, one end of the capacitor C174 and the MCU module, the other end of the resistor R178 and the other end of the capacitor C174 are connected to the GND end.

[0024] As one of the preferred embodiments of the present invention, the first output current detection module includes a resistor R141, a resistor R142, a resistor R143, a resistor R144, a resistor R145, a resistor R146, a capacitor C141, a capacitor C142, a capacitor C143 and a control chip U141;

[0025] One end of resistor R141 is connected to LED 1- and one end of resistor R143. The other end of resistor R141 is connected to the first buck power module and one end of resistor R142. The other end of resistor R142 is respectively connected to one end of resistor R146, one end of capacitor C141, and pin 4 of control chip U141. The other end of capacitor C141 is connected to GND. The other end of resistor R143 is respectively connected to one end of resistor R144, one end of capacitor C142, and pin 3 of control chip U141. The other end of resistor R144, the other end of capacitor C142, and pin 2 of control chip U141 are connected to GND. The other end of resistor R146 is respectively connected to pin 1 of control chip U141 and the MCU module. One end of resistor R145 is connected to VCC-3. The other end of resistor R145 is respectively connected to one end of capacitor C143 and pin 5 of control chip U141. The other end of capacitor C143 is connected to GND.

[0026] As one of the preferred embodiments of the present invention, the second output current detection module includes a resistor R151, a resistor R152, a resistor R153, a resistor R154, a resistor R155, a resistor R156, a capacitor C151, a capacitor C152, a capacitor C153 and a control chip U151;

[0027] One end of resistor R151 is connected to the LED2-terminal and one end of resistor R153. The other end of resistor R151 is connected to the second buck power module and one end of resistor R152. The other end of resistor R152 is respectively connected to one end of resistor R156, one end of capacitor C151, and pin 4 of control chip U151. The other end of capacitor C151 is connected to the GND terminal. The other end of resistor R153 is respectively connected to one end of resistor R154, one end of capacitor C152, and pin 3 of control chip U151. The other end of resistor R154, the other end of capacitor C152, and pin 2 of control chip U151 are connected to the GND terminal. The other end of resistor R156 is respectively connected to pin 1 of control chip U151 and the MCU module. One end of resistor R155 is connected to VCC-3. The other end of resistor R155 is connected to one end of capacitor C153 and pin 5 of control chip U151. The other end of capacitor C153 is connected to the GND terminal.

[0028] As one of the preferred embodiments of the present utility model, the third output current detection module includes a resistor R161, a resistor R162, a resistor R163, a resistor R164, a resistor R165, a resistor R166, a capacitor C161, a capacitor C162, a capacitor C163 and a control chip U161;

[0029] One end of resistor R161 is connected to the LED3-terminal and one end of resistor R163. The other end of resistor R161 is connected to the third buck power module and one end of resistor R162. The other end of resistor R162 is respectively connected to one end of resistor R166, one end of capacitor C161, and pin 4 of control chip U161. The other end of capacitor C161 is connected to GND. The other end of resistor R163 is respectively connected to one end of resistor R164, one end of capacitor C162, and pin 3 of control chip U161. The other end of resistor R164, the other end of capacitor C162, and pin 2 of control chip U161 are connected to GND. The other end of resistor R166 is respectively connected to pin 1 of control chip U161 and the MCU module. One end of resistor R165 is connected to VCC-3. The other end of resistor R165 is connected to one end of capacitor C163 and pin 5 of control chip U161. The other end of capacitor C163 is connected to GND.

[0030] The beneficial effects of the utility model include a three-way constant current dimming and color adjustment power supply with multiple output modes and a D4I function, comprising an EMC rectifier and filter module, a power factor correction module, an input end detection module, a power supply module, a bus power supply module, an MCU module, an external temperature detection module, an internal temperature detection module, a DAL I communication module, an NFC module, a first BUCK power module, a second BUCK power module, a third BUCK power module, a first output current detection module, a second output current detection module, a third output current detection module, and an output voltage detection module. The circuit can provide functions such as energy consumption, fault diagnosis data, bus power, storage bar expansion, and auxiliary power supply, while independently controlling the three constant current outputs. The output mode and output current and voltage parameters of the power supply can be changed under the function setting of the NFC module, thereby enriching the functions of the power supply and making it compatible with more scenario applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0032] Figure 1 This is a block diagram of a three-way constant current dimming and color adjustment power supply with multiple output modes and D4 I function;

[0033] Figure 2This is a circuit schematic diagram of a three-way constant current dimming and color adjustment power supply with multiple output modes and D4 I function;

[0034] Figure 3 This is the circuit schematic diagram of the input detection module;

[0035] Figure 4 This is the circuit schematic diagram of the MCU module;

[0036] Figure 5 This is the circuit schematic diagram of the external temperature detection module;

[0037] Figure 6 This is the circuit schematic diagram of the internal temperature detection module;

[0038] Figure 7 This is the circuit schematic diagram of the bus power supply module;

[0039] Figure 8 This is the circuit schematic diagram of the output voltage detection module;

[0040] Figure 9 is a circuit schematic diagram of the first output current detection module;

[0041] Figure 10 is a circuit schematic diagram of the second output current detection module;

[0042] Figure 11 This is a circuit schematic diagram of the third output current detection module. DETAILED DESCRIPTION

[0043] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention 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 overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0044] In the description of this utility model, "above," "below," and "within" are understood to be exclusive of the number indicated, while "above," "below," and "within" are understood to be inclusive of the number indicated. The use of "first" and "second" is solely for the purpose of distinguishing technical features and is not to be construed as indicating or implying relative importance, or implicitly specifying the number or order of the technical features indicated.

[0045] In the description of the present invention, it should be understood that descriptions involving orientations, 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. They 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. Therefore, they cannot be understood as limitations on the present invention.

[0046] In this utility model, unless otherwise expressly defined, terms such as "disposed," "installed," and "connected" should be interpreted broadly. For example, they may refer to direct connection or indirect connection through an intermediate medium; fixed connection or detachable connection or integral molding; mechanical connection; internal communication between two components or interaction between two components. Those skilled in the art can reasonably determine the specific meanings of these terms in this utility model based on the specific content of the technical solution.

[0047] Reference Figures 1 to 11 A three-way constant current dimming and color adjustment power supply with a multi-output mode and a D4 I function includes an EMC rectifier and filter module 10, a power factor correction module 20, an input end detection module 30, a power supply module 41, a bus power supply module 42, an MCU module 50, an external temperature detection module 61, an internal temperature detection module 62, a DAL I communication module 63, an NFC module 64, a first buck power module 71, a second buck power module 72, a third buck power module 73, a first output current detection module 81, a second output current detection module 82, a third output current detection module 83, and an output voltage detection module 90;

[0048] The input detection module 30 is connected to the external power supply, the power supply module 41, the EMC rectifier and filter module 10, and the MCU module 50 respectively;

[0049] The output end of the EMC rectifier and filter module 10 is connected to the first buck power module 71, the second buck power module 72, the third buck power module 73, the power supply module 41, the output voltage detection module 90 and the LED+ terminal through the power factor correction module 20;

[0050] The power supply module 41 is used to supply power to the subsequent circuits;

[0051] The first output terminal of the MCU module 50 is connected to the LED1-terminal via the first buck power module 71 and the first output current detection module 81, the second output terminal is connected to the LED2-terminal via the second buck power module 72 and the second output current detection module 82, and the third output terminal is connected to the LED3-terminal via the third buck power module 73 and the third output current detection module 83. The MCU module 50 is also connected to the output voltage detection module 90 and the DAL I communication module 63 respectively. The LED lamp is connected between the LED+terminal, the LED1-terminal, the LED2-terminal, and / or the LED3-terminal.

[0052] The DAL I communication module 63 and the bus power module 42 connect to the external DAL I system;

[0053] The external temperature detection module 61 is connected to the MCU module 50 and is used to detect the external temperature of the power supply;

[0054] The internal temperature detection module 62 is connected to the MCU module 50 and is used to detect the internal temperature of the power supply;

[0055] The NFC module 64 is connected to the MCU module 50 and is used to adjust the output mode.

[0056] 1) In the present invention, AC mains power (AC) is converted into a DC voltage source (VBUS) through a power supply including an input detection module 30, an EMC rectifier and filter module 10, and a power factor correction module 20. The AC mains power is then converted into a DC constant current source (VBUS) that meets set parameters through a first buck power module 71, a second buck power module 72, and a third buck power module 73. The DC mains power is then connected to the output terminals LED1-, LED2-, and LED3- through a first output current detection module 81, a second output current detection module 82, and a third output current detection module 83. The common LED+ terminal is connected to VBUS. Finally, LED+, LED1-, LED2-, and LED3- are connected to the lamp for use.

[0057] 2) Specifically, one end of the input detection module 30 is connected to the L line of the AC mains, one end is connected to the N line of the AC mains, one end is connected to the power supply module 41, one end is connected to the MCU module 50, and one end is connected to the input end of the EMC rectifier and filter module 10. The MCU module 50 is respectively connected to the first buck power module 71, the second buck power module 72, the third buck power module 73, the power supply module 41, the external temperature detection module 61, the internal temperature detection module 62, the DAL I communication module 63, the NFC module 64, the first output current detection module 81, the second output current detection module 82, the third output current detection module 83, and the output voltage detection module 90;

[0058] The bus power supply module 42 is respectively connected to the DAL I communication module 63, the power supply module 41, and the DAL I system. The output end of the EMC rectifier and filter module 10 is connected to the input end of the power factor correction module 20, and the output end is connected to the LED+ output port and the VBUS and GND ports of the first buck power module 71, the second buck power module 72, and the third buck power module 73. The output ends of the first buck power module 71, the second buck power module 72, and the third buck power module 73 are respectively connected to the first output current detection module 81, the second output current detection module 82, and the third output current detection module 83. The output ends of the first output current detection module 81, the second output current detection module 82, and the third output current detection module 83 are respectively connected to LED1-, LED2-, and LED3-. The power supply module 41 respectively supplies power to the input detection module 30, the power factor correction module 20, the first buck power module 71, the second buck power module 72, the third buck power module 73, the MCU module 50, the bus power supply module 42, the first output current detection module 81, the second output current detection module 82, and the third output current detection module 83. The first output current detection module 81, the second output current detection module 82, and the third output current detection module 83 are used to supply power; the input end detection module 30 detects the power information of the input end and transmits it to the MCU module 50; the first output current detection module 81, the second output current detection module 82, and the third output current detection module 83 detect the output current of each individual channel in real time and transmit it to the MCU module 50; the output voltage detection module 90 detects the output current of each individual channel in real time and transmits it to the MCU module 50; the external temperature detection module 61 detects the lamp temperature in real time and transmits it to the MCU module 50; the internal temperature detection module 62 detects the internal temperature of the power supply product in real time and transmits it to the MCU module 50; when the power supply product parameters or output mode are modified using an external device, the NFC module 64 transmits the setting information to the MCU module 50. The MCU module 50 performs calculation processing based on all the above detection information or setting information. The MCU module 50 adjusts the corresponding dimming signal and sends it to the first buck power module 71, the second buck power module 72, and the third buck power module 73, and uploads it to the DAL I system through the DAL I communication module 63.

[0059] 3)Reference Figure 1-2The input end of the power supply module 41 is connected to the VBUS and GND network ports, and the output VCC and P-GND are used to power the input detection module 30. VCC-2 and GND are used to power the power factor correction module 20 and the first BUCK power module 71, the second BUCK power module 72, and the third BUCK power module 73. VCC-3 and GND are used to power the first output current detection module 81, the second output current detection module 82, and the third output current detection module 83. VDD and GND are used to power the MCU module 50. 24V+ and S-GND are used to power the DAL I communication module 63, the bus power supply module 42, and the output 24V auxiliary power supply.

[0060] 4)Reference Figure 1-3 Preferably, the input detection module 30 includes a resistor R011, a resistor R012, a resistor R013, a resistor R014, a resistor R015, a resistor R016, a resistor R017, a capacitor C011, a capacitor C012, a capacitor C013, a capacitor C014, an optocoupler U012, an optocoupler U013 and a control chip U011;

[0061] One end of the resistor R011 is connected to one end of the external power supply, the resistor R012, the capacitor C104, the capacitor C105, the 3rd pin of the optocoupler U012 and the 4th pin of the optocoupler U101, the other end of the resistor R011 is connected to the resistor R103 and the EMC rectifier filter module 10, the other end of the resistor R012 is connected to the 2nd pin of the control chip U011 and the other end of the capacitor C012; the other end of the resistor R103 is connected to the 1st pin of the optocoupler U012 and the other end of the capacitor C011; one end of the resistor R014 is connected to the other end of the external power supply, the other end of the resistor R014 is connected to the other end of the resistor R015, the other end of the capacitor C013 and the 3rd pin of the control chip U011; the control chip Pin 5 of chip U011 is connected to the other end of capacitor C015, pin 6 of control chip U011 is connected to pin 2 of optocoupler U013, pin 7 of control chip U011 is connected to one end of resistor R016, pin 7 of control chip U011 is connected to pin 4 of optocoupler U012, pin 8 of control chip U011 is connected to capacitor C014, resistor R016, and resistor R017; pin 1 of optocoupler U012, pin 2 of optocoupler U012, pin 3 of optocoupler U013, and pin 4 of optocoupler U013 are connected to MCU module 50, and pin 1 of optocoupler U013 is connected to the other end of resistor R017.

[0062] Specifically, the functions of the input detection module 30 include but are not limited to detecting input voltage, input current, input power and input frequency. The 5th pin of the control chip U081 of the MCU module 50 outputs the corresponding instruction, which is transmitted to the control chip U081 through the optical coupler U012 for analysis and calculation, so that the 6th pin of the input detection module 30 can feedback the relevant detection data; the control chip U081 is a detection chip for power input power information, and the resistor R011 is used to detect the input current. One end of the resistor R012 and the resistor R013 are respectively connected to the two ends of the resistor R011, and the other end is connected to the capacitor C012 and the capacitor C011 respectively, and then connected to the 2nd pin and the 1st pin of the control chip U081; the detection of the AC input voltage of the mains is performed by the resistor R014 and Resistor R015 is used for voltage division, and after bypass filtering by capacitor C013, it is sent to pin 3 of control chip U081 for detection. The frequency of the AC input voltage is detected and calculated by detecting the time of the voltage signal's zero crossing point; and the PF value is detected by control chip U081 based on the phase angle of input current and input voltage; the input apparent power is calculated by the input voltage RMS and input current RMS; the input active power is calculated by the input apparent power and PF value; the electric quantity is calculated by the integration of active power and time; the control chip U081 transmits the electric quantity, voltage, current, apparent power, active power, frequency and other signals to pin 4 of the control chip U081 of the MCU module through the optocoupler U013 for operation and analysis.

[0063] 5)Reference Figure 1-2 5. The external temperature detection module 61 includes a resistor R091, a thermistor NTC1, a capacitor C091, a diode D091 and a diode D092;

[0064] One end of the resistor R091 and one end of the diode D091 are connected to the VDD end, the other end of the resistor R091 and the other end of the diode D091 are connected to one end of the thermistor NTC1, one end of the capacitor C091, one end of the diode D092 and the MCU module 50, and the other end of the thermistor NTC1, the other end of the capacitor C091 and the other end of the diode D092 are connected to the GND end.

[0065] The function of the external temperature detection module 61 is to change the resistance value of the thermistor NTC1 at both ends when the environment in which the thermistor NTC1 is located changes, that is, the voltage value at both ends of the temperature detection resistor changes. Pin 9 of the MCU module 50 detects the voltage change at this point and performs internal calculation and analysis. Pin 18 outputs the corresponding instruction and reports the temperature value at this point to the DALI system through the DALI communication module 63.

[0066] 6)Reference Figure 1-26. The internal temperature detection module 62 includes a resistor R101, a resistor R102, a capacitor C101 and a thermistor NTC2. One end of the resistor R101 is connected to the VDD terminal, and the other end of the resistor R101 is connected to the resistor R102, the thermistor NTC2, one end of the capacitor C101 and the MUC module. The other ends of the resistor R102, the thermistor NTC2 and the capacitor C101 are connected to the GND terminal.

[0067] Specifically, the function of the internal temperature detection module 62 is to change the resistance value at both ends of the thermistor NTC2 when the internal ambient temperature of the power supply in which the thermistor NTC2 is located changes, that is, the voltage value at both ends of the temperature detection resistor changes. Pin 10 of the MCU module 50 detects the voltage change at this point and performs internal calculation and analysis. Pin 18 outputs the corresponding instruction and reports the temperature value at this point to the DALI system through the DALI communication module 63.

[0068] 7) The function of the NFC module 64 is to set the output voltage and current of the power supply, light attenuation compensation, timed dimming function, dimming curve selection, lamp temperature protection point and product life expiration reminder, etc. It can also set the output mode of the power supply, set it to three-way output mode to run the RGB dimming and color adjustment algorithm, set it to dual-way output mode to run the CW dimming algorithm, and set it to single-way output mode. The three outputs are connected in parallel and can only adjust the brightness but not the color temperature. The required function is set to the NFC module 64 through the corresponding NFC device. The NFC module 64 is then connected to the 11th, 12th and 13th pins of the control chip U081 of the MCU module 50 to transmit the corresponding command to the control chip U081 of the MCU module 50. The control chip U081 of the MCU module 50 then outputs the corresponding dimming signal to the first BUCK power module 71, the second BUCK power module 72 and the third BUCK power module 73 to convert and run the corresponding output function.

[0069] 8) The D4 I function requires bus power supply. Preferably, the bus power supply module 42 includes a resistor R131, a resistor R132, a resistor R133, a resistor R134, a diode D131, a voltage regulator diode DZ131, an optocoupler U131, a control chip U132, and a MOS transistor Q131;

[0070] Pins 1 and 2 of the optocoupler U131 are connected to the MCU module 50, pin 3 of the optocoupler U131 is connected to the cathode of the control chip U132, the gate of the MOS transistor Q131, and one end of the resistor R132, pin 4 of the optocoupler U131 is connected to the cathode of the voltage-stabilizing diode DZ131 and one end of the resistor R131, the anode of the diode D131 is connected to the anode of the control chip U132, one end of the resistor R133, and one end of the resistor R134, the reference electrode of the control chip U132 is connected to one end of the resistor R132, the other end of the resistor R133, the other end of the resistor R134, and the source of the MOS transistor Q131, the drain of the MOS transistor Q131 and the other end of the resistor R131 are connected to the 24V+ terminal, and the anode of the voltage-stabilizing diode DZ131 is connected to the S-GND terminal.

[0071] Pin 20 of the control chip U081 of the MCU module 50 controls the conduction and shutoff of the optocoupler U131 of the bus power supply module 42 through the resistor R085 to control the conduction and shutoff of the MOS tube Q131 to realize the power supply of both ends DA+ and DA-; the DAL I communication module 63 is the communication bridge between the MCU module 50 and the DAL I system. The DAL I system sends an instruction, which is controlled by the rectifier bridge through the resistor Q111, the resistor Q112, the transistor Q111 and the Q112 to control the conduction and shutoff of the optocoupler U112 to achieve signal isolation and control the high and low levels of the chip pin 19 of the MCU module 50 to receive the correct instruction issued by the DAL I system; after receiving the instruction, the MCU module 50 analyzes and calculates the instruction and outputs the corresponding execution instruction to each module, and the 18th pin of the MCU module 50 is connected to the optocoupler U112 through the optocoupler U112. Pins 1-2 of 111 generate a corresponding optical signal, and pins 3-4 of the optocoupler U111 generate a corresponding control instruction based on the optical signal. The corresponding control logic is implemented through diode D111, resistors R113-R115, and capacitor C112 to control the on and off of the MOS tube Q113, thereby changing the high levels at both ends of DA+ and DA- into the corresponding instruction signals issued by the MCU module 50. The above working principle realizes the mutual communication between the DALI system and the MCU module 50.

[0072] 9)Reference Figure 1-2 8. Preferably, the output voltage detection module 90 includes a resistor R171, a resistor R172, a resistor R173, a resistor R174, a resistor R175, a resistor R176, a resistor R177, a resistor R178, a capacitor C171, a capacitor C172, a capacitor C173 and a capacitor C174;

[0073] One end of the resistor R172 is connected to the VBUS terminal, and the other end of the resistor R172 is connected to one end of the resistor R171, one end of the capacitor C171 and the MCU module 50 respectively. The other end of the resistor R171 and the other end of the capacitor C171 are connected to the GND terminal. One end of the resistor R173 is connected to the LED1- terminal, and the other end of the resistor R173 is connected to one end of the resistor R174, one end of the capacitor C172 and the MCU module 50 respectively. The other end of the resistor R174 and the other end of the capacitor C172 are connected to the GND terminal. One end of the resistor R175 is connected to the LED2-end, and the other end of the resistor R175 is respectively connected to one end of the resistor R176, one end of the capacitor C173 and the MCU module 50, and the other end of the resistor R176 and the other end of the capacitor C173 are connected to the GND end; one end of the resistor R177 is connected to the LED3-end, and the other end of the resistor R177 is respectively connected to one end of the resistor R178, one end of the capacitor C174 and the MCU module 50, and the other end of the resistor R178 and the other end of the capacitor C174 are connected to the GND end.

[0074] Specifically, the output voltage detection module 90 is used to detect the output voltage. Because the output voltage and the MCU module 50 do not share a common ground (reference point 2 "GND"), the MCU module 50 cannot directly sample the voltages at both ends of LED+ and LED1-, LED+ and LED2-, and LED+ and LED3-. According to the principle of the circuit, the voltage at both ends of the output plus the voltage of LED 1- / LED2- / LED3- to reference point 2 "GND" is equal to the voltage of LED+ to reference point 2 "GND". Therefore, the voltage division of the VBUS voltage is sampled by resistors R171 and R172, and is connected to the chip 26 pin of the MCU module 50 after bypass filtering through capacitor C171; the voltage division of the LED1- to reference point 2 "GND" is sampled by resistors R173 and R174, and is connected to the chip 25 pin of the MCU module 50 after bypass filtering through capacitor C172; and the voltage division of the LED1- to reference point 2 "GND" is sampled by resistors R175 and R176. 176 samples the divided voltage of LED2- relative to reference point 2 "GND", and connects to pin 24 of the chip of MCU module 50 after bypass filtering through capacitor C173; samples the divided voltage of LED3- relative to reference point 2 "GND" through resistors R177 and R178, and connects to pin 23 of the chip of MCU module 50 after bypass filtering through capacitor C174. MCU module 50 performs operation analysis on the above sampling signals, and obtains the voltage across LED+ and LED 1- by subtracting the voltage of LED1- relative to reference point 2 "GND" from the calculated VBUS voltage; obtains the voltage across LED+ and LED2- by subtracting the voltage of LED2- relative to reference point 2 "GND" from the calculated VBUS voltage; and obtains the voltage across LED+ and LED3- by subtracting the voltage of LED3- relative to reference point 2 "GND" from the calculated VBUS voltage. The actual output voltage value is obtained through the above circuit principle.

[0075] 10)Reference Figure 1-2 ,9-11, as a preference, the first output current detection module 81 includes a resistor R141, a resistor R142, a resistor R143, a resistor R144, a resistor R145, a resistor R146, a capacitor C141, a capacitor C142, a capacitor C143 and a control chip U141;

[0076] One end of resistor R141 is connected to the LED 1-terminal and one end of resistor R143. The other end of resistor R141 is connected to the first buck power module 71 and one end of resistor R142. The other end of resistor R142 is respectively connected to one end of resistor R146, one end of capacitor C141, and pin 4 of control chip U141. The other end of capacitor C141 is connected to GND. The other end of resistor R143 is respectively connected to one end of resistor R144, one end of capacitor C142, and pin 3 of control chip U141. The other ends of resistor R144, the other ends of capacitor C142, and pin 2 of control chip U141 are connected to GND. The other end of resistor R146 is respectively connected to pin 1 of control chip U141 and MCU module 50. One end of resistor R145 is connected to VCC-3. The other end of resistor R145 is respectively connected to one end of capacitor C143 and pin 5 of control chip U141. The other end of capacitor C143 is connected to GND.

[0077] The second output current detection module 82 includes a resistor R151, a resistor R152, a resistor R153, a resistor R154, a resistor R155, a resistor R156, a capacitor C151, a capacitor C152, a capacitor C153 and a control chip U151;

[0078] One end of resistor R151 is connected to the LED2-terminal and one end of resistor R153. The other end of resistor R151 is connected to the second buck power module 72 and one end of resistor R152. The other end of resistor R152 is respectively connected to one end of resistor R156, one end of capacitor C151, and pin 4 of control chip U151. The other end of capacitor C151 is connected to GND. The other end of resistor R153 is respectively connected to one end of resistor R154, one end of capacitor C152, and pin 3 of control chip U151. The other end of resistor R154, the other end of capacitor C152, and pin 2 of control chip U151 are connected to GND. The other end of resistor R156 is respectively connected to pin 1 of control chip U151 and MCU module 50. One end of resistor R155 is connected to VCC-3. The other end of resistor R155 is connected to one end of capacitor C153 and pin 5 of control chip U151. The other end of capacitor C153 is connected to GND.

[0079] The third output current detection module 83 includes a resistor R161, a resistor R162, a resistor R163, a resistor R164, a resistor R165, a resistor R166, a capacitor C161, a capacitor C162, a capacitor C163 and a control chip U161;

[0080] One end of resistor R161 is connected to the LED3-terminal and one end of resistor R163. The other end of resistor R161 is connected to the third buck power module 73 and one end of resistor R162. The other end of resistor R162 is respectively connected to one end of resistor R166, one end of capacitor C161, and pin 4 of control chip U161. The other end of capacitor C161 is connected to GND. The other end of resistor R163 is respectively connected to one end of resistor R164, one end of capacitor C162, and pin 3 of control chip U161. The other end of resistor R164, the other end of capacitor C162, and pin 2 of control chip U161 are connected to GND. The other end of resistor R166 is respectively connected to pin 1 of control chip U161 and MCU module 50. One end of resistor R165 is connected to VCC-3. The other end of resistor R165 is connected to one end of capacitor C163 and pin 5 of control chip U161. The other end of capacitor C163 is connected to GND.

[0081] The output current detection module is used to sample the actual current at the output end. Because the three outputs share a common positive output, in order to ensure the accuracy of the output current sampling, the actual current at the LED-end must be sampled. At the same time, because the LED-end does not share a common ground with the MCU module 50, it cannot be sampled directly. The principle of the sampling differential amplifier amplifies the current sampling signal at the LED-end and provides it to the MCU module 50. Among them, the resistor R141 of the first output current detection module 81 is connected in series in the loop of LED1- to detect the current flowing through the output LED1-end. One end of the resistor R141 is divided by the reference point 2 "GND" through the resistor R143 and the resistor R144, and then bypassed and filtered by the capacitor C142 and provided to the non-inverting input terminal 3 of the control chip U141; the other end of the resistor R141 is bypassed and filtered by the resistor R142 and the capacitor C141 and provided to the inverting input terminal 4 of the control chip U141; the resistor R146 is a feedback resistor to set the amplification factor, and one end is connected to the inverting input terminal and the output terminal of the control chip U141. Since resistor R142 = resistor R143, resistor R144 = resistor R146, according to the principle of virtual short and virtual disconnection, Vout 1 = V R141 *R146 / R142, Vout 1 is the amplified output voltage of the op amp, V R141 The voltage across the current detection resistor R141 is Vout 1 detected by the 27th pin of the control chip U081 of the MCU module 50, and Vout 1 = V R141 *R146 / R142 calculated to get V R141 According to U=R*I, the output current I LED1 can be calculated; the working principles of the second output current detection module 82 and the third output current detection module 83 are similar to those of the first output current detection module 81 and are not described in detail here.

[0082] 11)Reference Figure 1-2 4. Preferably, the MCU module 50 includes a resistor R081, a resistor R082, a resistor R083, a resistor R084, a resistor R085, a capacitor C081, a capacitor C082 and a control chip U081;

[0083] Pin 2 of the control chip U081 is connected to the GND terminal, pin 3 of the control chip U081 is connected to the resistor R081, the resistor R082 and the VDD terminal, the other end of the resistor R081 and the other end of the resistor R082 are connected to the input detection module 30, pin 5 of the control chip U081 is connected to the input detection module 30, pin 9 of the control chip U081 is connected to the external temperature detection module 61, pin 10 of the control chip U081 is connected to the internal temperature detection module 62, pins 11, 12, and 13 of the control chip U081 are connected to the NFC module 64, pin 18 of the control chip U081 is connected to one end of the capacitor C081 and the DAL I communication module 63 through the resistor R084, the other end of the capacitor C081 is connected to the GND terminal, and pin 19 of the control chip U081 is connected to one end of the resistor R083, one end of the capacitor C082 and the DAL I communication module 63, the other end of resistor R083 is connected to the power supply module 41, and the other end of capacitor C082 is connected to the GND terminal; pin 20 of the control chip U081 is connected to the bus power supply module 42 via resistor R085, pins 23, 24, 25, and 26 of the control chip U081 are connected to the output voltage detection module 90, pins 27, 28, and 29 of the control chip U081 are connected to the first output current detection module 81, the second output current detection module 82, and the third output current detection module 83, and pins 30, 31, and 32 of the control chip U081 are connected to the first buck power module 71, the second buck power module 72, and the third buck power module 73.

[0084] Specifically, the MCU module 50 is the core control for realizing intelligence of the entire circuit, realizing both the function of D4 I and the intelligent dimming control of the power supply; wherein the input terminal detection module 30 realizes the function of detecting the input terminal power information in the D4 I function, the external temperature detection module 61 realizes the function of detecting the temperature of the lamp, the internal temperature detection module 62 realizes the function of detecting the internal temperature of the power supply, the output voltage detection module 90 realizes the function of actually detecting the output voltage, the first output current detection module 81, the second output current detection module 82 and the third output current detection module 83 realize the function of actually detecting the output current, the MCU module 50 processes all module information to realize the function of receiving and sending instructions, the DAL I communication module 63 is a bridge for realizing information exchange between the MCU module and the DAL I system, and the bus power supply module 42 provides energy for the DAL I communication; through the above functional modules, D4 I is realized. I functional requirements, and then through the NFC module 64 intelligently set the power supply output voltage and current, light attenuation compensation, timed dimming function, dimming curve selection, lamp temperature protection point and product life expiration reminder and other functions; the output mode of the power supply can also be set to run the RGB dimming and color adjustment algorithm in three-way output mode and run the CW dimming algorithm in dual-way output mode. If it is set to single-way output mode, the three-way output can only adjust the brightness but not the color temperature, realizing the three-in-one multi-mode output function of RGB, CW and DIM of the power supply.

[0085] The advantages of the present invention are that: through the above-mentioned circuit, functions such as energy consumption, fault diagnosis data, bus power, storage bar expansion, and auxiliary power supply can be provided, and at the same time, three constant current outputs can be independently controlled. Under the function setting of the NFC module, the output mode of the power supply and the output current and voltage parameters can be changed, thereby enriching the functions of the power supply and being compatible with more scene applications.

[0086] Of course, the present invention is not limited to the above-mentioned embodiments. Those skilled in the art 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. A three-way constant current dimming and color adjustment power supply with multiple output modes and D4 I function, characterized by: The invention comprises an EMC rectifier filter module (10), a power factor correction module (20), an input terminal detection module (30), a power supply module (41), a bus power supply module (42), an MCU module (50), an external temperature detection module (61), an internal temperature detection module (62), a DAL I communication module (63), an NFC module (64), a first BUCK power module (71), a second BUCK power module (72), a third BUCK power module (73), a first output current detection module (81), a second output current detection module (82), a third output current detection module (83), and an output voltage detection module (90); The input end detection module (30) is respectively connected to the external power supply, the power supply module (41), the EMC rectification and filtering module (10), and the MCU module (50); The output end of the EMC rectifier filter module (10) is connected to the first BUCK power module (71), the second BUCK power module (72), the third BUCK power module (73), the power supply module (41), the output voltage detection module (90), and the LED+ end via the power factor correction module (20); The power supply module (41) is used to supply power to the subsequent circuit; The first output end of the MCU module (50) is connected to the LED1-end via the first BUCK power module (71) and the first output current detection module (81), the second output end is connected to the LED2-end via the second BUCK power module (72) and the second output current detection module (82), and the third output end is connected to the LED3-end via the third BUCK power module (73) and the third output current detection module (83), and is also connected to the output voltage detection module (90) and the DAL I communication module (63), respectively. The LED lamp is connected between the LED+end, the LED1-end, the LED2-end and / or the LED3-end; The DALI communication module (63) and the bus power supply module (42) are connected to an external DALI system; The external temperature detection module (61) is connected to the MCU module (50) and is used to detect the external temperature of the power supply; The internal temperature detection module (62) is connected to the MCU module (50) and is used to detect the internal temperature of the power supply; The NFC module (64) is connected to the MCU module (50) and is used to adjust the output mode.

2. The three-way constant current dimming and color adjustment power supply with multiple output modes and D4I function according to claim 1, characterized in that: The input end detection module (30) includes a resistor R011, a resistor R012, a resistor R013, a resistor R014, a resistor R015, a resistor R016, a resistor R017, a capacitor C011, a capacitor C012, a capacitor C013, a capacitor C014, an optical coupler U012, an optical coupler U013 and a control chip U011; One end of the resistor R011 is connected to one end of the external power supply, the resistor R012, the capacitor C104, the capacitor C105, the 3rd pin of the optocoupler U012 and the 4th pin of the optocoupler U101; the other end of the resistor R011 is connected to the resistor R103 and the EMC rectifier filter module (10); the other end of the resistor R012 is connected to the 2nd pin of the control chip U011 and the other end of the capacitor C012; the other end of the resistor R103 is connected to the 1st pin of the optocoupler U012 and the other end of the capacitor C011; one end of the resistor R014 is connected to the other end of the external power supply; the other end of the resistor R014 is connected to the other end of the resistor R015, the other end of the capacitor C013 and Pin 3 of the control chip U011 is connected; pin 5 of the control chip U011 is connected to the other end of the capacitor C015, pin 6 of the control chip U011 is connected to pin 2 of the optocoupler U013, pin 7 of the control chip U011 is connected to one end of the resistor R016, pin 7 of the control chip U011 is connected to pin 4 of the optocoupler U012, and pin 8 of the control chip U011 is connected to the capacitor C014, the resistor R016, and the resistor R017; pin 1 of the optocoupler U012, pin 2 of the optocoupler U012, pin 3 of the optocoupler U013, and pin 4 of the optocoupler U013 are connected to the MCU module (50), and pin 1 of the optocoupler U013 is connected to the other end of the resistor R017.

3. The three-way constant current dimming and color adjustment power supply with multiple output modes and D4I function according to claim 1, characterized in that: The MCU module (50) includes a resistor R081, a resistor R082, a resistor R083, a resistor R084, a resistor R085, a capacitor C081, a capacitor C082 and a control chip U081; Pin 2 of the control chip U081 is connected to the GND terminal, pin 3 of the control chip U081 is connected to the resistor R081, the resistor R082 and the VDD terminal, the other end of the resistor R081 and the other end of the resistor R082 are connected to the input terminal detection module (30), pin 5 of the control chip U081 is connected to the input terminal detection module (30), pin 9 of the control chip U081 is connected to the external temperature detection module (61), pin 10 of the control chip U081 is connected to the internal temperature detection module (62), pins 11, 12 and 13 of the control chip U081 are connected to the NFC module (64), pin 18 of the control chip U081 is respectively connected to one end of the capacitor C081 and the DALI communication module (63) through the resistor R084, the other end of the capacitor C081 is connected to the GND terminal, and pin 19 of the control chip U081 is connected to the NFC module (64). The control chip U081 is connected to one end of a resistor R083, one end of a capacitor C082 and a DALI communication module (63), respectively; the other end of the resistor R083 is connected to the power supply module (41), and the other end of the capacitor C082 is connected to the GND end; the 20th pin of the control chip U081 is connected to the bus power supply module (42) via the resistor R085; the 23rd, 24th, 25th and 26th pins of the control chip U081 are connected to the output voltage detection module (90); the 27th, 28th and 29th pins of the control chip U081 are connected to the first output current detection module (81), the second output current detection module (82) and the third output current detection module (83); and the 30th, 31st and 32nd pins of the control chip U081 are connected to the first buck power module (71), the second buck power module (72) and the third buck power module (73).

4. The three-way constant current dimming and color adjustment power supply with multiple output modes and D4I function according to claim 1, characterized in that: The external temperature detection module (61) includes a resistor R091, a thermistor NTC1, a capacitor C091, a diode D091 and a diode D092; One end of the resistor R091 and one end of the diode D091 are connected to the VDD terminal, the other end of the resistor R091 and the other end of the diode D091 are connected to one end of the thermistor NTC1, one end of the capacitor C091, one end of the diode D092 and the MCU module (50), and the other end of the thermistor NTC1, the other end of the capacitor C091 and the other end of the diode D092 are connected to the GND terminal.

5. The three-way constant current dimming and color adjustment power supply with multiple output modes and D4I function according to claim 1, characterized in that: The internal temperature detection module (62) comprises a resistor R101, a resistor R102, a capacitor C101 and a thermistor NTC2, one end of the resistor R101 is connected to the VDD end, the other end of the resistor R101 is connected to the resistor R102, the thermistor NTC2, one end of the capacitor C101 and the MUC module, and the other ends of the resistor R102, the thermistor NTC2 and the capacitor C101 are connected to the GND end.

6. The three-way constant current dimming and color adjustment power supply with multiple output modes and D4I function according to claim 1, characterized in that: The bus power supply module (42) includes a resistor R131, a resistor R132, a resistor R133, a resistor R134, a diode D131, a voltage stabilizing diode DZ131, an optical coupler U131, a control chip U132, and a MOS tube Q131; Pins 1 and 2 of the optocoupler U131 are connected to the MCU module (50), pin 3 of the optocoupler U131 is connected to the cathode of the control chip U132, the gate of the MOS tube Q131 and one end of the resistor R132, pin 4 of the optocoupler U131 is connected to the cathode of the voltage-stabilizing diode DZ131 and one end of the resistor R131, the anode of the diode D131 is connected to the anode of the control chip U132, one end of the resistor R133 and one end of the resistor R134, the reference electrode of the control chip U132 is connected to one end of the resistor R132, the other end of the resistor R133, the other end of the resistor R134 and the source of the MOS tube Q131, the drain of the MOS tube Q131 and the other end of the resistor R131 are connected to the 24V+ terminal, and the anode of the voltage-stabilizing diode DZ131 is connected to the S-GND terminal.

7. The three-way constant current dimming and color adjustment power supply with multiple output modes and D4I function according to claim 1, characterized in that: The output voltage detection module (90) includes a resistor R171, a resistor R172, a resistor R173, a resistor R174, a resistor R175, a resistor R176, a resistor R177, a resistor R178, a capacitor C171, a capacitor C172, a capacitor C173, and a capacitor C174; One end of the resistor R172 is connected to the VBUS end, the other end of the resistor R172 is respectively connected to one end of the resistor R171, one end of the capacitor C171 and the MCU module (50), the other end of the resistor R171 and the other end of the capacitor C171 are connected to the GND end, one end of the resistor R173 is connected to the LED1- end, the other end of the resistor R173 is respectively connected to one end of the resistor R174, one end of the capacitor C172 and the MCU module (50), the other end of the resistor R174 and the other end of the capacitor C172 are connected to the GND end One end of the resistor R175 is connected to the LED2-end, the other end of the resistor R175 is respectively connected to one end of the resistor R176, one end of the capacitor C173 and the MCU module (50), the other end of the resistor R176 and the other end of the capacitor C173 are connected to the GND end; one end of the resistor R177 is connected to the LED3-end, the other end of the resistor R177 is respectively connected to one end of the resistor R178, one end of the capacitor C174 and the MCU module (50), the other end of the resistor R178 and the other end of the capacitor C174 are connected to the GND end.

8. The three-way constant current dimming and color adjustment power supply with multiple output modes and D4I function according to claim 1, characterized in that: The first output current detection module (81) includes a resistor R141, a resistor R142, a resistor R143, a resistor R144, a resistor R145, a resistor R146, a capacitor C141, a capacitor C142, a capacitor C143 and a control chip U141; One end of the resistor R141 is connected to the LED1-end and one end of the resistor R143, the other end of the resistor R141 is connected to the first BUCK power module (71) and one end of the resistor R142, the other end of the resistor R142 is respectively connected to one end of the resistor R146, one end of the capacitor C141 and pin 4 of the control chip U141, and the other end of the capacitor C141 is connected to the GND end; the other end of the resistor R143 is respectively connected to one end of the resistor R144, one end of the capacitor C142 and pin 3 of the control chip U141, the other end of the resistor R144, the other end of the capacitor C142 and pin 2 of the control chip U141 are connected to the GND end, and the other end of the resistor R146 is respectively connected to the control chip U Pin 1 of 141 is connected to the MCU module (50), one end of the resistor R145 is connected to the VCC-3 terminal, the other end of the resistor R145 is connected to one end of the capacitor C143 and pin 5 of the control chip U141, and the other end of the capacitor C143 is connected to the GND terminal.

9. The three-way constant current dimming and color adjustment power supply with multiple output modes and D4I function according to claim 1, characterized in that: The second output current detection module (82) includes a resistor R151, a resistor R152, a resistor R153, a resistor R154, a resistor R155, a resistor R156, a capacitor C151, a capacitor C152, a capacitor C153 and a control chip U151; One end of the resistor R151 is connected to the LED2-terminal and one end of the resistor R153, the other end of the resistor R151 is connected to the second BUCK power module (72) and one end of the resistor R152, the other end of the resistor R152 is respectively connected to one end of the resistor R156, one end of the capacitor C151 and pin 4 of the control chip U151, the other end of the capacitor C151 is connected to the GND terminal, the other end of the resistor R153 is respectively connected to one end of the resistor R154, one end of the capacitor C152 and pin 3 of the control chip U151, the other end of the resistor R154, the other end of the capacitor C152 and pin 2 of the control chip U151 are connected to the GND terminal, the other end of the resistor R156 is respectively connected to pin 1 of the control chip U151 and the MCU module (50), one end of the resistor R155 is connected to the VCC-3 terminal, the other end of the resistor R155 is connected to one end of the capacitor C153 and the control chip U151. Pin 5 of 151 is connected, and the other end of capacitor C153 is connected to the GND terminal.

10. The three-way constant current dimming and color adjustment power supply with multiple output modes and D4I function according to claim 1, characterized in that: The third output current detection module (83) includes a resistor R161, a resistor R162, a resistor R163, a resistor R164, a resistor R165, a resistor R166, a capacitor C161, a capacitor C162, a capacitor C163 and a control chip U161; One end of the resistor R161 is connected to the LED3-end and one end of the resistor R163, the other end of the resistor R161 is connected to the third BUCK power module (73) and one end of the resistor R162, the other end of the resistor R162 is respectively connected to one end of the resistor R166, one end of the capacitor C161 and the 4th pin of the control chip U161, the other end of the capacitor C161 is connected to the GND end, the other end of the resistor R163 is respectively connected to one end of the resistor R164, one end of the capacitor C162 and the 3rd pin of the control chip U161, the other end of the resistor R164, the other end of the capacitor C162 and the 2nd pin of the control chip U161 are connected to the GND end, and the other end of the resistor R166 is respectively connected to the control chip U Pin 1 of 161 is connected to the MCU module (50), one end of the resistor R165 is connected to the VCC-3 terminal, the other end of the resistor R165 is connected to one end of the capacitor C163 and pin 5 of the control chip U161, and the other end of the capacitor C163 is connected to the GND terminal.

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