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LED linear dimming drive circuit

A driving circuit and linear dimming technology, applied in the field of LED lighting, can solve problems such as affecting the line of sight, reducing the service life of the LED, and flickering the LED

Active Publication Date: 2017-06-20
DONGGUAN PAN AMERICAN ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the dimming controllers currently on the market are generally non-linear, and the LED will flicker during adjustment, which affects people's sight and reduces the service life of the LED.

Method used

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Embodiment Construction

[0019] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0020] It should be noted that when an element is referred to as being “fixed” to another element, it can be directly on the other element or there can also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as...

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PUM

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Abstract

The invention relates to an LED linear dimming drive circuit which comprises an input module, a rectifier module connected with the input module, a voltage regulator module and a power control module connected with the rectifier module, and an LED load module. The LED linear dimming drive circuit further comprises a regulation module of which a first end is connected with the voltage regulator module and a second end is connected with the power control module. According to the LED linear dimming drive circuit, commercial power is converted into steady DC power, the DC power is compared with the current of a regulator through an operational amplifier, the magnitude of current flowing through the LED load module is controlled linearly, and thus, the luminous brightness of LED is regulated. The problem of LED light flickering caused by other nonlinear ways of dimming is avoided. The service life of LED is prolonged.

Description

technical field [0001] The invention relates to the technical field of LED lighting, in particular to an LED linear dimming drive circuit. Background technique [0002] LED is a new generation of lighting source. Due to LED's high luminous efficiency, low energy consumption, long life, mercury-free, and good dimming performance, the market popularization speed is very fast. [0003] With the development of LED lighting technology, people's requirements for lighting effects are getting higher and higher. The brightness of LEDs required in different occasions is different, and people adjust the brightness of LEDs to meet the needs. However, the dimming controllers currently on the market are generally non-linear, and the LED will flicker during adjustment, which affects people's sight and reduces the service life of the LED. Contents of the invention [0004] Based on this, the present invention provides an LED linear dimming driving circuit, which realizes linear dimming ...

Claims

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Application Information

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IPC IPC(8): H05B33/08H05B44/00
CPCH05B45/10Y02B20/30
Inventor 邓金生
Owner DONGGUAN PAN AMERICAN ELECTRONICS CO LTD
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