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A dimming control device and its implementation method

A dimming control and control device technology, which is applied in the direction of lighting devices, light sources, electric light sources, etc., can solve the problems of multiple discrete components and high chip costs, and achieve the effect of low cost, simple structure, and easy realization

Active Publication Date: 2018-09-21
HENGDIAN GRP TOSPO LIGHTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The chip cost of the dual op amp is higher and requires more discrete components

Method used

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  • A dimming control device and its implementation method
  • A dimming control device and its implementation method
  • A dimming control device and its implementation method

Examples

Experimental program
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Effect test

Embodiment 1

[0076] like Figure 1~5 As shown, a dimming control device includes a rectifying and filtering circuit for generating a smooth DC signal after rectifying and filtering the mains; a starting / controlling device for starting the device and controlling the device; and a power converter for power conversion ;A 0-10V dimming circuit used to receive and process the dimming signal and generate an error signal; used to process the superposition signal of the sampling signal of the output current and the error signal output by the 0-10V dimming circuit to control the output current, Feedback to the start / control device to realize the output current sampling / feedback circuit of constant current control; among them, the rectification filter circuit is connected with the power converter and the start / control device respectively, and the start / control device is respectively connected with the power converter and the output current sampling / The feedback circuit is connected, and the output ...

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Abstract

The invention discloses a dimming control device, which comprises a rectification filter circuit, the rectification filter circuit is respectively connected with a power converter and a start / control device, the start / control device is respectively connected with a power converter, an output current sampling / feedback circuit, and outputs The current sampling / feedback circuit is connected with the 0‑10V dimming circuit. The invention also discloses a method for realizing the dimming control device. The invention has the characteristics of simple structure, low cost, easy realization, good dimming effect and the like.

Description

technical field [0001] The invention relates to LED drive and control circuit technology, in particular to a dimming control device and an implementation method thereof. Background technique [0002] With the global phase-out of incandescent lamps and the implementation of energy-saving and emission-reduction policies, LED lighting has been rapidly popularized and penetrated. At the same time, the LED drive power supply, which is a key component of LED lighting, also has a broad market prospect. Nowadays, the LED market and technology are gradually mature, and its application has fully penetrated into various fields. Under such a big environment, the entire LED lighting market is trying to reduce the cost of LED products in order to improve the market competitiveness of products. As the cost of LED products decreases, the price of the driving power supply, which is the "heart" of LED lamps, also decreases. [0003] Some 0-10V dimming solutions on the market are implemented...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05B33/08H05B44/00
CPCH05B45/00
Inventor 孔剑虹陈欣平程琳琳龚伊
Owner HENGDIAN GRP TOSPO LIGHTING
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