An Efficient Driver for Dimmable LED Lighting

被引：0
|
作者：
Yang, Wen-Ching [1 ]
Chen, Yu-Jen [1 ]
Moo, Chin-Sien [1 ]
机构：
[1] Natl Sun Yat Sen Univ, Dept Elect Engn, Kaohsiung 80424, Taiwan
来源：
2011 6TH IEEE CONFERENCE ON INDUSTRIAL ELECTRONICS AND APPLICATIONS (ICIEA) | 2011年
关键词：
Light Emitting Diode (LED); Dimming; double pulse-width modulation;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A high efficiency driver circuit is proposed for Light Emitting Diode (LED) lamps with dimming feature. The driver consists of a fly-back converter in series with the dc-link. By processing partial power of the power conversion circuit for current regulation, a high overall circuit efficiency is achievable. The dimming feature can be accomplished by means of linear current regulation or the double pulse-width modulation (PWM) control scheme. Test results from an exemplar design for a 45 W LED lamp demonstrate that the high circuit efficiency.
引用
收藏
页码：2331 / 2336
页数：6
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