A High Efficiency Driver for High-Brightness White LED Lamp

被引：0
|
作者：
Chen, Yu-Jen [1 ]
Yang, Wen-Ching [1 ]
Moo, Chin-Sien [1 ]
Hsieh, Yao-Ching [2 ]
机构：
[1] Natl Sun Yat Sen Univ, Dept Elect Engn, Kaohsiung 80424, Taiwan
[2] Natl Dong Hwa Univ, Dept Elect Engn, Hualien 97401, Taiwan
来源：
TENCON 2010: 2010 IEEE REGION 10 CONFERENCE | 2010年
关键词：
LED lamp; LED driver; current regulation; PEAK;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A high efficiency driver is proposed for the high-brightness white LED lamp. The driver consists of a dc power source in series with a current regulator. The current regulation is accomplished by partially processing the power from the dc power source. The dimming feature of the LED lamp can be made by regulating the current. The detailed circuit operation stages and analysis are provided. A laboratory circuit is designed for an LED lamp which is composed of eight high-brightness LEDs. Experimental results demonstrate that a high efficiency can be achieved even at a dimmed lamp power.
引用
收藏
页码：2313 / 2317
页数：5
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