湖南工业大学学报2016，Vol.30Issue(3)：49-53,5.DOI:10.3969/j.issn.1673-9833.2016.03.009
基于单火线的LED照明灯调光系统设计
Design of the Dimming System of Single Live Wire LED Lighting Lamps
摘要
Abstract
A LED lighting system, based on the luminance signal sending module, the luminance signal receiving module, and the rightness adjustment module, has been designed to overcome the defects of current LED lighting dimming system, which fails to regulate the multi-grade stepless dimming. A bidirectional thyristor alternating current phase shift circuit has been adopted by this new system for an output in voltage waveform of a luminance signal with positive and negative half wave loss, which signal will be converted into luminance data based on double-digit ternary system. The converted luminance signal, then via a single live wire, will be sent to the the luminance signal receiving module, where it will be captured, identified and converted into a PWM signal with an adjustable duty ratio by a micro-controller. The PWM signal, sent out by the LED drive, is able to adjust the brightness of LED lighting lamps, thus realizing the multi-grade stepless dimming control within the range of 0~100%. The feasibility of the dimming system has thus been verified by experiments, with the desired results fully achieved.关键词
LED照明灯/双向晶闸管/单火线/微控器/PWMKey words
LED lamp/bidirectional thyristor/single live wire/micro-controller/PWM分类
信息技术与安全科学引用本文复制引用
陈海东,凌云,黄文威,冯磊,张曙云..基于单火线的LED照明灯调光系统设计[J].湖南工业大学学报,2016,30(3):49-53,5.基金项目
湖南省教育厅科研基金资助项目（15C0404），湖南工业大学研究生创新基金资助项目 （）
