CN201937901U - Intelligent constant-voltage type light emitting diode (LED) dimming controller - Google Patents

Intelligent constant-voltage type light emitting diode (LED) dimming controller Download PDF

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Publication number
CN201937901U
CN201937901U CN2010206587454U CN201020658745U CN201937901U CN 201937901 U CN201937901 U CN 201937901U CN 2010206587454 U CN2010206587454 U CN 2010206587454U CN 201020658745 U CN201020658745 U CN 201020658745U CN 201937901 U CN201937901 U CN 201937901U
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CN
China
Prior art keywords
control module
module
dimming
constant voltage
output
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2010206587454U
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Chinese (zh)
Inventor
吴观德
何勇
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HUIZHOU DAJING LIGHTING CONTROL CO Ltd
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HUIZHOU DAJING LIGHTING CONTROL CO Ltd
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Priority to CN2010206587454U priority Critical patent/CN201937901U/en
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Publication of CN201937901U publication Critical patent/CN201937901U/en
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/40Control techniques providing energy savings, e.g. smart controller or presence detection

Abstract

The utility model relates to an intelligent constant-voltage type light emitting diode (LED) dimming controller, which comprises a dimming driving circuit, wherein the dimming driving circuit comprises a power supply conversion module, a micro control unit (MCU) microprocessor control module and an output dimming control module in sequential connection, the MCU microprocessor control module is connected with a constant-voltage control module. The intelligent constant-voltage type LED dimming controller is characterized in that the input end of the output dimming control module is also connected with the output end of a pulse-width modulation (PWM) signal module, the output end of the constant-voltage control module is connected with a constant-voltage type LED, and the constant-voltage control module realizes the LED dimming through controlling the output dimming control module according to control signals of the PWM signal module. The dimming controller adopts a constant-voltage driving mode, the efficiency is higher than 90 percent, the dimming controller has high intelligent performance, can realize remote control and is compatible with an RS485 interface and a DMX-512 interface, in addition, the microcontroller is adopted for outputting PWM control signals to realize the PWM full digital dimming, further, the full brightness range dimming (from 0 percent to 100 percent) of the high-power LED can be realized, and the energy is effectively saved.

Description

A kind of intelligent constant voltage type LED light adjusting controller
Technical field
The utility model relates to the intelligent lighting field, specifically is meant a kind of intelligent constant voltage type LED light adjusting controller.
Background technology
LED has characteristics such as energy-saving and environmental protection, the life-span is long, volume is little as new and effective solid light source, is widely used in fields such as various indications, demonstration, decoration, backlight, general lighting and urban landscape.
In the prior art, most of voltage or electric current to LED light modulation employing change LED two ends reaches the light modulation purpose, just simulate light modulation, but characteristics of luminescence analysis from LED, the electric current and voltage of LED is not a linear relationship with brightness, by transferring voltage and current is can not realize by 0-100% gamut and average brightness regulation, and often changes electric current and the voltage of LED, and there is very big influence in the LED life-span.Also some scheme adopts the PWM light modulation, but because of the response time of LED driving to the PWM dim signal has than long delay, causes the light modulation precision low, thereby does not reach best dimming effect.
Aspect control, much all be by light modulation manually now, should use suitable inconvenience like this, no way is utilized time control etc.
Summary of the invention
The problem that the utility model need solve provide a kind of efficient, stable, can realize that brightness is from 0% ~ 100% LED light adjusting controller that changes.
According to the above-mentioned problem that needs solution, the technical scheme that the utility model is taked is: a kind of intelligent constant voltage type LED light adjusting controller is provided, comprise the light modulation drive circuit, described light modulation drive circuit comprises the power transfer module that connects successively, MUC microprocessor control module, the output dimming controlling module, MUC microprocessor control module is connected with the constant voltage control module, described output dimming controlling module input also connects with pwm signal module output and is connected, constant voltage control module output is connected with constant voltage type LED, and the constant voltage control module realizes the LED light modulation according to the control signal control output dimming controlling module of pwm signal module.
Concrete, described pwm signal adopts the common IO mouth simulation of MUC microprocessor to produce.
Concrete, described output driver module comprises the integrated EFI of a low internal resistance, this integrated EFI has low internal resistance, and by a grounding through resistance, it is MUC microprocessor control module output high level and the moment conducting of the field effect transistor that causes that such avoiding powers on.
Preferential: described LED light adjusting controller further comprises being connected with MUC microprocessor control module signal and is used for the receiving remote control command, and then the bus communication circuit by MUC microprocessor control module control light modulation drive circuit realization LED light modulation;
Compatible RS485 interface of described communicating circuit and DMX512 interface, this interface is used to receive the control command from other controller, and then realizes the Based Intelligent Control light modulation.
With respect to prior art, the utility model beneficial effect is:
(1) the utility model adopts the type of drive of the resistance integrated EFI in hanging down, and internal resistance is less than 10MR, and power supply conversion efficiency reaches more than 90%;
(2) the utlity model has high intelligent, remote controlled, compatible RS485 interface and DMX-512 interface, by total line traffic control can realize a control, team control, time control, scene control flexibly, inductor is controlled automatically and the computer centralized control;
(3) the utility model adopts MUC microprocessor output pwm control signal to realize the PWM full digital dimming, and then makes high-power LED lighteness gamut (0% ~ 100%) light modulation, can be effectively energy-conservation;
(4) the utility model single channel driving force is strong, avoids the tired lock of traditional wiring and with big, the heavy-polluted shortcoming of line amount.
Description of drawings
Fig. 1 is the utility model schematic block diagram;
Fig. 2 is the utility model power transfer module circuit theory diagrams;
Fig. 3 is the utility model embodiment circuit theory schematic diagram;
Fig. 4 is the utility model bus communication circuit theory diagrams.
Embodiment
Understanding for the ease of those skilled in the art is described in further detail the utility model below in conjunction with accompanying drawing:
As shown in Figure 1, a kind of intelligent constant voltage type LED light adjusting controller, comprise the light modulation drive circuit, described light modulation drive circuit comprises the power transfer module that connects successively, MUC microprocessor control module, the output dimming controlling module, MUC microprocessor control module is connected with the constant voltage control module, described output dimming controlling module input also connects with pwm signal module output and is connected, constant voltage control module output is connected with constant voltage type LED, and the constant voltage control module realizes the LED light modulation according to the control signal control output dimming controlling module of pwm signal module.
The utility model embodiment circuit theory diagrams as shown in Figure 2.The DC power supply is exported to voltage stabilizing circuit behind the current rectifying and wave filtering circuit of compositions such as capacitor C 6, C7, voltage stabilizing circuit is mainly by power supply integrated chip U3(LM2575HV-5.0) form, behind voltage stabilizing circuit, supply with the subsequent conditioning circuit operation power, offer MUC microprocessor and relevant chip.
Integrated EFI Q1 and correspondent peripheral circuit are formed the output dimming controlling module, and described output driver module comprises that one has the integrated EFI Q1 of low internal resistance; Described integrated EFI Q1 source electrode is by resistance R 6 ground connection.
The utility model can comprise multichannel light modulation drive circuit, by being connected respectively with a plurality of I/O mouths of MUC microprocessor, can constitute the light modulation of multichannel respectively.
In the utility model when work,, integrated EFI Q1 is by the signal of sampling MUC microprocessor common end, the conducting of control itself and ending.When the integrated EFI conducting, electric current by power supply flow through the LED lamp, to the negative pole of power supply.Because the LED lamp is connected with integrated EFI, so the electric current on the LED lamp equals the average current of inductance, different average currents makes the LED lamp send the light of different brightness, realizes the LED light modulation.
Light adjusting controller bus communication circuit embodiments principle schematic as described in as Fig. 3 being.U1 is a communication chip among the figure, and 1,4 pin of U1 are connected with the MUC microcontroller circuit, and communication chip 485A, 485B receiving remote control signal are transferred to the MUC microprocessor, realizes light modulation by MUC microprocessor decoding control output dimming controlling module.This bus communication circuit compatibility RS485 interface and DMX512 interface.
Above embodiment only is the preferable implementation of the utility model, can not limit the utility model with this, under the utility model design prerequisite that do not come off, its any being equal to of doing is replaced and minor variations all belongs to protection range of the present utility model.

Claims (6)

1. intelligent constant voltage type LED light adjusting controller, comprise the light modulation drive circuit, described light modulation drive circuit comprises the power transfer module that connects successively, MUC microprocessor control module, the output dimming controlling module, MUC microprocessor control module is connected with the constant voltage control module, it is characterized in that: described output dimming controlling module input also is connected with pwm signal module output, constant voltage control module output is connected with constant voltage type LED, and the constant voltage control module realizes the LED light modulation according to the control signal control output dimming controlling module of pwm signal module.
2. intelligent constant voltage type LED light adjusting controller according to claim 1 is characterized in that: described pwm signal module adopts the MUC microprocessor to produce.
3. intelligent constant voltage type LED light adjusting controller according to claim 1 and 2, it is characterized in that: described LED light adjusting controller further comprises being connected with MUC microprocessor control module signal and is used for the receiving remote control command, and then realizes the bus communication circuit of LED light modulation by MUC microprocessor control module control light modulation drive circuit; Compatible RS485 interface of described communicating circuit and DMX512 interface.
4. intelligent constant voltage type LED light adjusting controller according to claim 4 is characterized in that: described bus communication circuit compatibility RS485 interface and DMX512 interface.
5. intelligent constant voltage type LED light adjusting controller according to claim 1, it is characterized in that: described constant voltage control module comprises integrated EFI Q1, the PWMD end of described Q1 connects the pwm signal module.
6. intelligent constant voltage type LED light adjusting controller according to claim 4 is characterized in that: described integrated integrated EFI Q1 end is by pull down resistor R6 ground connection in parallel.
CN2010206587454U 2010-12-14 2010-12-14 Intelligent constant-voltage type light emitting diode (LED) dimming controller Expired - Fee Related CN201937901U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010206587454U CN201937901U (en) 2010-12-14 2010-12-14 Intelligent constant-voltage type light emitting diode (LED) dimming controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010206587454U CN201937901U (en) 2010-12-14 2010-12-14 Intelligent constant-voltage type light emitting diode (LED) dimming controller

Publications (1)

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CN201937901U true CN201937901U (en) 2011-08-17

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104363686A (en) * 2014-12-11 2015-02-18 广州市雅江光电设备有限公司 Method for dimming LED lamp by virtue of silicon-controlled rectifier and digital signal
CN104411069A (en) * 2014-12-11 2015-03-11 广州市雅江光电设备有限公司 Thyristor control and digital signal control compatible LED lamp control method
WO2018090879A1 (en) * 2016-11-15 2018-05-24 罗中良 Double-bypass high-power light-adjusting controller

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104363686A (en) * 2014-12-11 2015-02-18 广州市雅江光电设备有限公司 Method for dimming LED lamp by virtue of silicon-controlled rectifier and digital signal
CN104411069A (en) * 2014-12-11 2015-03-11 广州市雅江光电设备有限公司 Thyristor control and digital signal control compatible LED lamp control method
WO2018090879A1 (en) * 2016-11-15 2018-05-24 罗中良 Double-bypass high-power light-adjusting controller

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Granted publication date: 20110817

Termination date: 20131214

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