An automatic dimming LED lamp control system

Abstract

The present invention discloses an automatic dimming LED lamp control system, which relates to the field of LED control technology, including a power module for power supply; a constant current drive module for constant current voltage regulation; a path control module for switching the power transmission path and supplying power in parallel with the constant current drive module; an output compensation module for energy storage, voltage transformation, rectification and filtering, voltage regulation and power compensation; a power processing module for power reception and superposition; an intelligent control module for module control; a first LED dimming module for constant current regulation and brightness regulation; a second LED dimming module for controlling the power transmission path, constant current regulation and brightness regulation. The automatic dimming LED lamp control system of the present invention can control the series-parallel dimming state of the LED, and automatically adjust the power supply state according to the series-parallel dimming state to meet the power demand, and perform power compensation processing to improve the power supply accuracy and improve the LED lighting efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of LED control, in particular to an automatic dimming LED lamp control system. Background Art

[0002] With the continuous improvement of LED (light emitting diode) technology, LED as a lighting source has shown the characteristics of high luminous efficiency, long life, fast response and good environmental protection. It has begun to replace traditional light sources in many lighting fields, and LEDs are often connected in parallel or series.

[0003] Chinese patent CN117641650B discloses a color adjustment control circuit for LED lighting, which specifically performs color adjustment control on parallel LEDs at the same time, and when adjusting and controlling the series LEDs, it is necessary to switch the state of the LEDs according to the power supply mode of the constant current drive module, so that when performing color adjustment control on the series LEDs, it is necessary to constantly change the power transmission path, frequently change the conduction state of the switch, and the control means are complicated. In addition, the LED lamp control system in the prior art generally completes the constant current drive control of the LED through an LED constant current drive circuit composed of relevant constant current drivers, field effect transistors, etc., but the LED constant current drive circuit cannot automatically adjust the voltage and current according to the series and parallel state of the LEDs, resulting in a decrease in the working efficiency of the LEDs, and when performing dimming control, it is impossible to automatically switch the series and parallel state of the LEDs according to the lighting mode of the LEDs, so it needs to be improved. Summary of the invention

[0004] The embodiment of the present invention provides an automatic dimming LED lamp control system to solve the problems raised in the above background technology.

[0005] According to an embodiment of the present invention, there is provided an automatic dimming LED lamp control system, comprising: a power supply module, a constant current drive module, a channel control module, an output compensation module, an electric energy processing module, an intelligent control module, a first LED dimming module and a second LED dimming module;

[0006] A power module, used for receiving a first direct current power and a second direct current power;

[0007] A constant current drive module is connected to the power module, the intelligent control module and the path control module, and is used to store energy and regulate constant current voltage on the first DC electric energy and output the first electric energy when receiving the first pulse signal output by the intelligent control module, and store energy and regulate constant current voltage on the first DC electric energy or the second DC electric energy and output the second electric energy when receiving the second control signal and the second pulse signal output by the intelligent control module or only outputting the second pulse signal;

[0008] a passage control module connected to the intelligent control module, configured to receive and store the second electric energy and output the third electric energy upon receiving the first dimming signal and the second dimming signal output by the intelligent control module, and output the fourth electric energy upon receiving the first control signal output by the intelligent control module;

[0009] an output compensation module, connected to the intelligent control module, the passage control module and the constant current drive module, for storing the first DC power or the second DC power received by the constant current drive module and performing isolation and voltage transformation processing, outputting the seventh power and performing rectification and filtering processing on the seventh power, and when receiving the third pulse signal output by the intelligent control module, performing voltage regulation processing on the rectified and filtered seventh power and performing power compensation processing on the first power or the third power;

[0010] an electric energy processing module, connected to the constant current drive module, the path control module and the intelligent control module, for receiving the first electric energy or performing mixed energy storage on the first electric energy and the third electric energy and providing the fifth electric energy, and when receiving the first control signal output by the intelligent control module, superimposing the first electric energy and the fourth electric energy and providing the sixth electric energy;

[0011] An intelligent control module, for outputting a first pulse signal, a third pulse signal, and a first dimming signal or a second dimming signal when performing single-channel dimming; for outputting a first pulse signal, a second pulse signal, a third pulse signal, a first dimming signal, and a second dimming signal simultaneously when parallel dimming control is required; for outputting a first pulse signal, a second pulse signal, a third pulse signal, a first control signal, and a second dimming signal when series dimming control is required; and for outputting a second control signal when the power module is not connected to the second DC power and outputs the second pulse signal;

[0012] A first LED dimming module is connected to the power processing module and the intelligent control module, and is used to receive the first power, the third power or the sixth power and perform separate constant current regulation and brightness regulation when receiving the first dimming signal;

[0013] The second LED dimming module is connected to the power processing module, the first LED dimming module and the intelligent control module, and is used to receive the first power or the third power and perform independent constant current regulation and brightness adjustment when receiving the second dimming signal. When receiving the first control signal and the second dimming signal, it is connected in series with the first LED dimming module and performs constant current regulation and brightness adjustment.

[0014] As a further solution of the present invention: the power module includes a first power interface and a second power interface; the constant current drive module includes a first inductor, a second inductor, a first capacitor, a second capacitor, a tenth power tube, a first power tube, a second power tube, a first diode and a second diode; the intelligent control module includes a first controller;

[0015] Preferably, the first end of the first power interface is connected to the drain of the tenth power tube and is connected to the drain of the first power tube and the first end of the first capacitor through the first inductor, the source of the first power tube is connected to the anode of the first diode, the source of the tenth power tube is connected to the first end of the second power interface and is connected to the first end of the second capacitor and the drain of the second power tube through the second inductor, the source of the second power tube is connected to the anode of the second diode, the cathode of the first diode is connected to the power processing module, the cathode of the second diode is connected to the path control module, the second end of the first capacitor is connected to the second end of the second capacitor and the output compensation module, the gate of the first power tube, the gate of the second power tube and the gate of the tenth power tube are respectively connected to the IO1 end, IO2 end and IO6 end of the first controller, and the second end of the first power interface is connected to the second end of the second power interface and the ground end.

[0016] As a further solution of the present invention: the path control module includes a third power tube, a fourth power tube, a third capacitor and a first logic chip;

[0017] Preferably, the drain of the third power tube is connected to the drain of the fourth power tube and the cathode of the second diode and is grounded through the third capacitor, the source of the third power tube is connected to the cathode of the first diode, the source of the fourth power tube is connected to the power processing module, the gate of the third power tube is connected to the Y end of the first logic chip, the A end and the B end of the first logic chip are respectively connected to the IO4 end and the IO5 end of the first controller, and the gate of the fourth power tube is connected to the IO3 end of the first controller.

[0018] As a further solution of the present invention: the output compensation module includes a first transformer, a seventh diode, a sixth capacitor and an eleventh power tube;

[0019] Preferably, the first end and the second end of the primary side of the first transformer are respectively connected to the second end of the second capacitor and the ground, the first end of the secondary side of the first transformer is connected to the anode of the seventh diode, the cathode of the seventh diode is connected to the drain of the eleventh power tube and is connected to the second end of the secondary side of the first transformer and the ground through the sixth capacitor, the source of the eleventh power tube is connected to the cathode of the first diode and the source of the third power tube, and the gate of the eleventh power tube is connected to the IO7 terminal of the first controller.

[0020] As a further solution of the present invention: the power processing module includes a sixth diode, a fourth capacitor, a ninth power tube, a seventh resistor and a fifth capacitor; the first LED dimming module includes a first LED module;

[0021] Preferably, the anode of the sixth diode is connected to the cathode of the first diode, the cathode of the sixth diode is connected to one end of the fourth capacitor and the first end of the first LED module and is connected to the drain of the ninth power tube, one end of the seventh resistor and the ground through the fifth capacitor, the gate of the ninth power tube is connected to the other end of the seventh resistor, the gate of the fourth power tube and the IO3 end of the first controller, and the source of the ninth power tube is connected to the source of the fourth power tube and the other end of the fourth capacitor.

[0022] As a further solution of the present invention: the first LED dimming module further includes a fifth power tube, a first resistor, a second resistor and a first operational amplifier;

[0023] Preferably, the drain of the fifth power tube is connected to the second end of the first LED module, the source of the fifth power tube is connected to the inverting end of the first operational amplifier and grounded through the first resistor, the gate of the fifth power tube is connected to the output end of the first operational amplifier through the second resistor, and the in-phase end of the first operational amplifier is connected to the IO4 end of the first controller.

[0024] As a further solution of the present invention: the second LED dimming module includes a seventh power tube, a third resistor, a fourth resistor, a first switch tube, a fifth diode, an eighth power tube, a fourth diode, a second LED module, a sixth power tube, a fifth resistor, a sixth resistor and a second operational amplifier;

[0025] Preferably, the drain of the seventh power tube is connected to the first end of the first LED module and is connected to the gate of the seventh power tube and the collector of the first switch tube through the third resistor, the emitter of the first switch tube is grounded, the base of the first switch tube is connected to the gate of the eighth power tube and the IO3 end of the first controller through the fourth resistor, the source of the seventh power tube is connected to the anode of the fifth diode, the cathode of the fifth diode is connected to the first end of the second LED module and the cathode of the fourth diode, the anode of the fourth diode is connected to the source of the eighth power tube, the drain of the eighth power tube is connected to the second end of the first LED module, the second end of the second LED module is connected to the drain of the sixth power tube, the source of the sixth power tube is connected to the inverting end of the second operational amplifier and is grounded through the fifth resistor, the gate of the sixth power tube is connected to the output end of the second operational amplifier through the sixth resistor, and the in-phase end of the second operational amplifier is connected to the IO5 end of the first controller.

[0026] Compared with the prior art, the beneficial effects of the present invention are as follows: the automatic dimming LED lamp control system of the present invention can control the lighting brightness of the first LED dimming module and the second LED dimming module through the intelligent control module, and can control the first LED dimming module and the second LED dimming module to perform parallel dimming to achieve different light control, control the first LED dimming module and the second LED dimming module to perform series connection and same brightness adjustment control, and can control the constant current drive module to perform constant current voltage regulation according to the series-parallel state of the first LED dimming module and the second LED dimming module, and cooperate with the power processing module and the path control module to adjust the power supply to meet the power supply requirements under different lighting conditions, and at the same time, the output compensation module performs power compensation processing on the power output by the constant current drive module and the path control module to improve the power supply accuracy and improve the LED lighting efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0028] Figure 1 A schematic block diagram of a principle of an automatic dimming LED lamp control system provided by an embodiment of the present invention.

[0029] Figure 2 A circuit diagram of an automatic dimming LED lamp control system provided by an embodiment of the present invention.

[0030] Figure 3 A circuit diagram of an output compensation module provided in an embodiment of the present invention.

[0031] Figure 4 A circuit diagram of a power processing module provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] In one embodiment, see Figure 1, an automatic dimming LED lamp control system, comprising: a power supply module 1, a constant current drive module 2, a channel control module 3, an output compensation module 4, an electric energy processing module 5, an intelligent control module 6, a first LED dimming module 7 and a second LED dimming module 8;

[0034] Specifically, the power module 1 is used to access the first DC power and the second DC power;

[0035] The constant current driving module 2 is connected to the power module 1, the intelligent control module 6 and the path control module 3, and is used to store energy and regulate constant current voltage on the first DC electric energy and output the first electric energy when receiving the first pulse signal output by the intelligent control module 6, and store energy and regulate constant current voltage on the first DC electric energy or the second DC electric energy and output the second electric energy when receiving the second control signal and the second pulse signal output by the intelligent control module 6 or only outputting the second pulse signal;

[0036] The passage control module 3 is connected to the intelligent control module 6, and is used to receive and store the second electric energy and output the third electric energy when receiving the first dimming signal and the second dimming signal output by the intelligent control module 6, and output the fourth electric energy when receiving the first control signal output by the intelligent control module 6;

[0037] The output compensation module 4 is connected to the intelligent control module 6, the path control module 3 and the constant current drive module 2, and is used to store the first DC power or the second DC power received by the constant current drive module 2 and perform isolation and voltage transformation processing, output the seventh power and perform rectification and filtering processing on the seventh power, and when receiving the third pulse signal output by the intelligent control module 6, perform voltage regulation processing on the rectified and filtered seventh power and perform power compensation processing on the first power or the third power;

[0038] The electric energy processing module 5 is connected to the constant current driving module 2, the path control module 3 and the intelligent control module 6, and is used to receive the first electric energy or to perform mixed energy storage on the first electric energy and the third electric energy and to provide the fifth electric energy, and when receiving the first control signal output by the intelligent control module 6, the first electric energy and the fourth electric energy are superimposed and processed to provide the sixth electric energy;

[0039] Intelligent control module 6, used for outputting a first pulse signal, a third pulse signal and a first dimming signal or a second dimming signal when single-channel dimming is performed; when parallel dimming control is required, outputting a first pulse signal, a second pulse signal, a third pulse signal, a first dimming signal and a second dimming signal at the same time; when series dimming control is required, outputting a first pulse signal, a second pulse signal, a third pulse signal, a first control signal and a second dimming signal; when the power module 1 is not connected to the second DC power and outputs the second pulse signal, outputting a second control signal;

[0040] A first LED dimming module 7, connected to the power processing module 5 and the intelligent control module 6, for receiving the first power, the third power or the sixth power and performing separate constant current regulation and brightness regulation when receiving the first dimming signal;

[0041] The second LED dimming module 8 is connected to the power processing module 5, the first LED dimming module 7 and the intelligent control module 6, and is used to receive the first power or the third power and perform independent constant current regulation and brightness adjustment when receiving the second dimming signal, and is connected in series with the first LED dimming module 7 and performs constant current regulation and brightness adjustment when receiving the first control signal and the second dimming signal.

[0042] In a specific embodiment, the power supply module 1 can adopt a power supply circuit composed of a power supply interface, which can be connected to DC power; the constant current drive module 2 can adopt a constant current drive circuit composed of an inductor, a field effect transistor, a capacitor and a diode, which can perform dual-path energy storage and constant current regulation processing; the path control module 3 can adopt a path control circuit composed of a capacitor, a field effect transistor and a logic chip, which can control the transmission path and power storage of the electric energy output in the constant current drive module 2, and realize mixed power supply with the constant current drive module 2, and perform power superposition processing with the power processing module 5; the output compensation module 4 can adopt an output compensation circuit composed of a transformer, a diode, a field effect transistor, etc., which can perform isolation transformation, rectification filtering and voltage regulation processing when the constant current drive module 2 performs constant current regulation, so as to electrically compensate the electric energy output by the constant current drive module 2 and the path control module 3. energy compensation processing; the electric energy processing module 5 can adopt an electric energy processing circuit composed of field effect tubes, energy storage capacitors, electrolytic capacitors, etc., which can store the input electric energy and realize electric energy superposition and electric energy filtering; the intelligent control module 6 can adopt an intelligent control circuit composed of a single-chip microcomputer, which integrates many components such as an operator, a controller, a memory, and an input and output device to realize signal processing, data storage, module control, timing control and other functions; the first LED dimming module 7 can adopt a first LED dimming circuit composed of an LED module, a field effect tube, an operational amplifier, etc. to perform constant current regulation and lighting brightness adjustment; the second LED dimming module 8 can adopt a second LED dimming circuit composed of an LED module, a field effect tube, an operational amplifier, a triode, etc. to control the series-parallel state with the first LED dimming module, and perform constant current regulation and lighting brightness adjustment.

[0043] In another embodiment, see Figure 1 , Figure 2 , Figure 3 and Figure 4, the power module 1 includes a first power interface and a second power interface; the constant current drive module 2 includes a first inductor L1, a second inductor L2, a first capacitor C1, a second capacitor C2, a tenth power tube Q10, a first power tube Q1, a second power tube Q2, a first diode D1 and a second diode D2; the intelligent control module 6 includes a first controller U1;

[0044] Specifically, the first end of the first power interface is connected to the drain of the tenth power tube Q10 and is connected to the drain of the first power tube Q1 and the first end of the first capacitor C1 through the first inductor L1, the source of the first power tube Q1 is connected to the anode of the first diode D1, the source of the tenth power tube Q10 is connected to the first end of the second power interface and is connected to the first end of the second capacitor C2 and the drain of the second power tube Q2 through the second inductor L2, the source of the second power tube Q2 is connected to the anode of the second diode D2, the cathode of the first diode D1 is connected to the power processing module 5, the cathode of the second diode D2 is connected to the path control module 3, the second end of the first capacitor C1 is connected to the second end of the second capacitor C2 and the output compensation module 4, the gate of the first power tube Q1, the gate of the second power tube Q2 and the gate of the tenth power tube Q10 are respectively connected to the IO1 end, the IO2 end and the IO6 end of the first controller U1, and the second end of the first power interface is connected to the second end of the second power interface and the ground end.

[0045] In a specific embodiment, the first power tube Q1, the second power tube Q2 and the tenth power tube Q10 can all be N-channel field effect tubes. The tenth power tube Q10 performs power transmission control, the first power tube Q1 cooperates with the first inductor L1, the first capacitor C1 and the first diode D1 to perform energy storage and constant current voltage regulation, and the second power tube Q2 cooperates with the second inductor L2, the second capacitor C2 and the second diode D2 to perform energy storage and constant current voltage regulation; the first controller U1 can select an STM32 microcontroller.

[0046] Furthermore, the path control module 3 includes a third power tube Q3, a fourth power tube Q4, a third capacitor C3 and a first logic chip J1;

[0047] Specifically, the drain of the third power tube Q3 is connected to the drain of the fourth power tube Q4 and the cathode of the second diode D2 and is grounded through the third capacitor C3, the source of the third power tube Q3 is connected to the cathode of the first diode D1, the source of the fourth power tube Q4 is connected to the power processing module 5, the gate of the third power tube Q3 is connected to the Y end of the first logic chip J1, the A end and the B end of the first logic chip J1 are respectively connected to the IO4 end and the IO5 end of the first controller U1, and the gate of the fourth power tube Q4 is connected to the IO3 end of the first controller U1.

[0048] In a specific embodiment, the third power tube Q3 and the fourth power tube Q4 can both be N-channel field effect tubes; and the first logic chip J1 can be an AND gate chip.

[0049] Further, the output compensation module 4 includes a first transformer B1, a seventh diode D7, a sixth capacitor C6 and an eleventh power tube Q11;

[0050] Specifically, the first end and the second end of the primary side of the first transformer B1 are connected to the second end and the ground of the second capacitor C2 respectively, the first end of the secondary side of the first transformer B1 is connected to the anode of the seventh diode D7, the cathode of the seventh diode D7 is connected to the drain of the eleventh power tube Q11 and is connected to the second end and the ground of the secondary side of the first transformer B1 through the sixth capacitor C6, the source of the eleventh power tube Q11 is connected to the cathode of the first diode D1 and the source of the third power tube Q3, and the gate of the eleventh power tube Q11 is connected to the IO7 terminal of the first controller U1.

[0051] In a specific embodiment, the eleventh power tube Q11 can be an N-channel field effect tube.

[0052] Further, the power processing module 5 includes a sixth diode D6, a fourth capacitor C4, a ninth power tube Q9, a seventh resistor R7 and a fifth capacitor C5; the first LED dimming module 7 includes a first LED module;

[0053] Specifically, the anode of the sixth diode D6 is connected to the cathode of the first diode D1, the cathode of the sixth diode D6 is connected to one end of the fourth capacitor C4 and the first end of the first LED module and is connected to the drain of the ninth power tube Q9, one end of the seventh resistor R7 and the ground through the fifth capacitor C5, the gate of the ninth power tube Q9 is connected to the other end of the seventh resistor R7, the gate of the fourth power tube Q4 and the IO3 end of the first controller U1, and the source of the ninth power tube Q9 is connected to the source of the fourth power tube Q4 and the other end of the fourth capacitor C4.

[0054] In a specific embodiment, the fourth capacitor C4 may be an energy storage capacitor; the fifth capacitor C5 may be an electrolytic capacitor; and the ninth power tube Q9 may be a P-channel field effect tube.

[0055] Furthermore, the first LED dimming module 7 further includes a fifth power tube Q5, a first resistor R1, a second resistor R2 and a first operational amplifier AD1;

[0056] Specifically, the drain of the fifth power tube Q5 is connected to the second end of the first LED module, the source of the fifth power tube Q5 is connected to the inverting end of the first operational amplifier AD1 and is grounded through the first resistor R1, the gate of the fifth power tube Q5 is connected to the output end of the first operational amplifier AD1 through the second resistor R2, and the in-phase end of the first operational amplifier AD1 is connected to the IO4 end of the first controller U1.

[0057] In a specific embodiment, the fifth power tube Q5 may be an N-channel field effect tube for dimming control; the first resistor R1 is used for current sampling; and the first operational amplifier AD1 may be an ADA4097 operational amplifier.

[0058] Further, the second LED dimming module 8 includes a seventh power tube Q7, a third resistor R3, a fourth resistor R4, a first switch tube V1, a fifth diode D5, an eighth power tube Q8, a fourth diode D4, a second LED module, a sixth power tube Q6, a fifth resistor R5, a sixth resistor R6 and a second operational amplifier AD2;

[0059] Specifically, the drain of the seventh power tube Q7 is connected to the first end of the first LED module and is connected to the gate of the seventh power tube Q7 and the collector of the first switch tube V1 through the third resistor R3, the emitter of the first switch tube V1 is grounded, the base of the first switch tube V1 is connected to the gate of the eighth power tube Q8 and the IO3 end of the first controller U1 through the fourth resistor R4, the source of the seventh power tube Q7 is connected to the anode of the fifth diode D5, the cathode of the fifth diode D5 is connected to the first end of the second LED module and the cathode of the fourth diode D4, the anode of the fourth diode D4 is connected to the source of the eighth power tube Q8, the drain of the eighth power tube Q8 is connected to the second end of the first LED module, the second end of the second LED module is connected to the drain of the sixth power tube Q6, the source of the sixth power tube Q6 is connected to the inverting end of the second operational amplifier AD2 and is grounded through the fifth resistor R5, the gate of the sixth power tube Q6 is connected to the output end of the second operational amplifier AD2 through the sixth resistor R6, and the in-phase end of the second operational amplifier is connected to the IO5 end of the first controller U1.

[0060] In a specific embodiment, the seventh power tube Q7 and the eighth power tube Q8 can both be NPN-type transistors, and cooperate with the third resistor R3, the fourth resistor R4, the fifth diode D5, the first switch tube V1 and the fourth diode D4 to control the connection state of the second LED module and the first LED module. The first switch tube V1 can be an NPN-type transistor; the sixth power tube Q6 can be an N-channel field effect tube for dimming control; the fifth resistor R5 is used for current sampling; the second operational amplifier AD2 can be an ADA4097 operational amplifier; the second LED module is the same as the first LED module.

[0061] In an automatic dimming LED lamp control system of the present embodiment, the first power interface is connected to the first DC power, and the second power interface is connected to the second DC power. When the IO4 terminal of the first controller U1 outputs the first dimming signal or the IO5 terminal of the first controller U1 outputs the second dimming signal, the IO1 terminal of the first controller U1 outputs the first pulse signal and controls the conduction state of the first power tube Q1, cooperates with the first inductor L1, the first capacitor C1 and the first diode D1 to perform constant current regulation processing, and at the same time, the first transformer B1, the seventh diode D7 and the sixth capacitor C6 perform isolation transformation and rectification and filtering processing, and the I of the first controller U1 The O7 terminal controls the eleventh power tube Q11 to perform voltage regulation so as to compensate the first electric energy output by the first diode D1. The fourth capacitor C4 and the fifth electric energy are subjected to energy storage filtering. The processed electric energy is transmitted to the first LED module and transmitted to the second LED module through the seventh power tube Q7. The first operational amplifier AD1 is controlled by the first dimming signal to adjust the conduction state of the fifth power tube Q5, thereby controlling the lighting brightness of the first LED module. The second operational amplifier AD2 is controlled by the second dimming signal to adjust the conduction state of the sixth power tube Q6, thereby controlling the lighting brightness of the second LED module. The first controller U1 simultaneously outputs the second dimming signal. When a dimming signal is generated and a second dimming signal is generated, the IO1 terminal and IO2 terminal of the first controller U1 output the first pulse signal and the second pulse signal respectively, and then the first DC power and the second DC power are respectively regulated to a constant current and mixed for power supply. The power transmitted by the eleventh power tube Q11 can compensate for the mixed power, and then meet the power supply for the first LED module and the second LED module. When it is necessary to simultaneously control the first LED module and the second LED module to have the same lighting brightness, the IO3 terminal of the first controller U1 will control the first switch tube V1 to be turned on, the seventh power tube Q7 and the ninth power tube Q9 to be turned off, and the eighth power tube Q11 to be turned on. The tube Q8 and the fourth power tube Q4 are turned on, so that the electric energy output by the second diode D2 controls the fourth capacitor C4 to bootstrap through the fourth power tube Q4, thereby increasing the output voltage, and the first LED module is connected in series with the second LED module. At this time, the IO5 end of the first controller U1 controls the second operational amplifier AD2 to adjust the conduction state of the sixth power tube Q6 to adjust the lighting brightness. In addition, when the second power supply interface is not connected to the second DC power and the first controller U1 outputs the second pulse signal, the IO6 end of the first controller U1 will output the second control signal and control the tenth power tube Q10 to be turned on, thereby transmitting the first DC power to the second inductor L2.

[0062] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should all be regarded as exemplary and non-limiting, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0063] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An automatic dimming LED lamp control system, characterized in that: The automatic dimming LED light control system includes: a power supply module, a constant current drive module, a channel control module, an output compensation module, an electric energy processing module, an intelligent control module, a first LED dimming module and a second LED dimming module; The power module is used to access the first direct current power and the second direct current power; The constant current drive module is connected to the power supply module, the intelligent control module and the path control module, and is used to store energy and regulate constant current and voltage for the first DC electric energy and output the first electric energy when receiving the first pulse signal output by the intelligent control module, and store energy and regulate constant current and voltage for the first DC electric energy or the second DC electric energy and output the second electric energy when receiving the second control signal and the second pulse signal output by the intelligent control module or only outputting the second pulse signal; The passage control module is connected to the intelligent control module, and is used to receive and store the second electric energy and output the third electric energy when receiving the first dimming signal and the second dimming signal output by the intelligent control module, and output the fourth electric energy when receiving the first control signal output by the intelligent control module; The output compensation module is connected to the intelligent control module, the path control module and the constant current drive module, and is used to store the first DC power or the second DC power received by the constant current drive module and perform isolation and voltage transformation processing, output the seventh power and perform rectification and filtering processing on the seventh power, and when receiving the third pulse signal output by the intelligent control module, perform voltage regulation processing on the rectified and filtered seventh power and perform power compensation processing on the first power or the third power; The electric energy processing module is connected to the constant current driving module, the path control module and the intelligent control module, and is used to receive the first electric energy or to perform mixed energy storage on the first electric energy and the third electric energy and provide the fifth electric energy, and when receiving the first control signal output by the intelligent control module, the first electric energy and the fourth electric energy are superimposed and processed to provide the sixth electric energy; The intelligent control module is used to output the first pulse signal, the third pulse signal and the first dimming signal or the second dimming signal when single-channel dimming is performed; when parallel dimming control is required, the first pulse signal, the second pulse signal, the third pulse signal, the first dimming signal and the second dimming signal are output simultaneously; when series dimming control is required, the first pulse signal, the second pulse signal, the third pulse signal, the first control signal and the second dimming signal are output; when the power module is not connected to the second DC power and outputs the second pulse signal, the second control signal is output; The first LED dimming module is connected to the power processing module and the intelligent control module, and is used to receive the first power, the third power or the sixth power and perform separate constant current regulation and brightness regulation when receiving the first dimming signal; The second LED dimming module is connected to the power processing module, the first LED dimming module and the intelligent control module, and is used to receive the first power or the third power and perform independent constant current regulation and brightness adjustment when receiving the second dimming signal, and is connected in series with the first LED dimming module and performs constant current regulation and brightness adjustment when receiving the first control signal and the second dimming signal.

2. The automatic dimming LED lamp control system according to claim 1, characterized in that: The power supply module includes a first power supply interface and a second power supply interface; the constant current drive module includes a first inductor, a second inductor, a first capacitor, a second capacitor, a tenth power tube, a first power tube, a second power tube, a first diode and a second diode; the intelligent control module includes a first controller; The first end of the first power interface is connected to the drain of the tenth power tube and is connected to the drain of the first power tube and the first end of the first capacitor through the first inductor, the source of the first power tube is connected to the anode of the first diode, the source of the tenth power tube is connected to the first end of the second power interface and is connected to the first end of the second capacitor and the drain of the second power tube through the second inductor, the source of the second power tube is connected to the anode of the second diode, the cathode of the first diode is connected to the power processing module, the cathode of the second diode is connected to the path control module, the second end of the first capacitor is connected to the second end of the second capacitor and the output compensation module, the gate of the first power tube, the gate of the second power tube and the gate of the tenth power tube are respectively connected to the IO1 end, the IO2 end and the IO6 end of the first controller, and the second end of the first power interface is connected to the second end of the second power interface and the ground end.

3. The automatic dimming LED lamp control system according to claim 2, characterized in that: The path control module includes a third power tube, a fourth power tube, a third capacitor and a first logic chip; The drain of the third power tube is connected to the drain of the fourth power tube and the cathode of the second diode and is grounded through the third capacitor, the source of the third power tube is connected to the cathode of the first diode, the source of the fourth power tube is connected to the power processing module, the gate of the third power tube is connected to the Y end of the first logic chip, the A end and the B end of the first logic chip are respectively connected to the IO4 end and the IO5 end of the first controller, and the gate of the fourth power tube is connected to the IO3 end of the first controller.

4. The automatic dimming LED lamp control system according to claim 3, characterized in that: The output compensation module includes a first transformer, a seventh diode, a sixth capacitor and an eleventh power tube; The first end and the second end of the primary side of the first transformer are connected to the second end of the second capacitor and the ground respectively, the first end of the secondary side of the first transformer is connected to the anode of the seventh diode, the cathode of the seventh diode is connected to the drain of the eleventh power tube and connected to the second end of the secondary side of the first transformer and the ground through the sixth capacitor, the source of the eleventh power tube is connected to the cathode of the first diode and the source of the third power tube, and the gate of the eleventh power tube is connected to the IO7 terminal of the first controller.

5. The automatic dimming LED lamp control system according to claim 4, characterized in that: The power processing module includes a sixth diode, a fourth capacitor, a ninth power tube, a seventh resistor and a fifth capacitor; the first LED dimming module includes a first LED module; The anode of the sixth diode is connected to the cathode of the first diode, the cathode of the sixth diode is connected to one end of the fourth capacitor and the first end of the first LED module and is connected to the drain of the ninth power tube, one end of the seventh resistor and the ground through the fifth capacitor, the gate of the ninth power tube is connected to the other end of the seventh resistor, the gate of the fourth power tube and the IO3 end of the first controller, and the source of the ninth power tube is connected to the source of the fourth power tube and the other end of the fourth capacitor.

6. The automatic dimming LED lamp control system according to claim 5, characterized in that: The first LED dimming module also includes a fifth power tube, a first resistor, a second resistor and a first operational amplifier; The drain of the fifth power tube is connected to the second end of the first LED module, the source of the fifth power tube is connected to the inverting end of the first operational amplifier and grounded through the first resistor, the gate of the fifth power tube is connected to the output end of the first operational amplifier through the second resistor, and the non-inverting end of the first operational amplifier is connected to the IO4 end of the first controller.

7. The automatic dimming LED lamp control system according to claim 6, characterized in that: The second LED dimming module includes a seventh power tube, a third resistor, a fourth resistor, a first switch tube, a fifth diode, an eighth power tube, a fourth diode, a second LED module, a sixth power tube, a fifth resistor, a sixth resistor and a second operational amplifier; The drain of the seventh power tube is connected to the first end of the first LED module and is connected to the gate of the seventh power tube and the collector of the first switch tube through the third resistor, the emitter of the first switch tube is grounded, the base of the first switch tube is connected to the gate of the eighth power tube and the IO3 end of the first controller through the fourth resistor, the source of the seventh power tube is connected to the anode of the fifth diode, the cathode of the fifth diode is connected to the first end of the second LED module and the cathode of the fourth diode, the anode of the fourth diode is connected to the source of the eighth power tube, the drain of the eighth power tube is connected to the second end of the first LED module, the second end of the second LED module is connected to the drain of the sixth power tube, the source of the sixth power tube is connected to the inverting end of the second operational amplifier and is grounded through the fifth resistor, the gate of the sixth power tube is connected to the output end of the second operational amplifier through the sixth resistor, and the in-phase end of the second operational amplifier is connected to the IO5 end of the first controller.

Images