Design considerations of an SEPIC PFC converter for driving multiple lighting LED lamps

被引:23
|
作者
Chiu, Huang-Jen [1 ]
Cheng, Shih-Jen [1 ]
机构
[1] Natl Taiwan Univ Sci & Technol, Dept Elect Engn, Taipei, Taiwan
关键词
SEPIC PFC converter; multiple lighting LED lamps; single stage; burst mode; FAST-SCALE BIFURCATION; STAGE;
D O I
10.1002/cta.495
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
This paper presents a single-ended primary inductance power-factor-correction converter (SEPIC PFC) for driving multiple lighting LED lamps. With the aid of this converter, high power factor and high efficiency can be achieved by a simple single-stage circuit with low device stress features. A burst-mode dimming method is used to regulate the current and brightness of multiple LED lamps. A laboratory prototype is also built and tested. With the prototype, high power factor can remain under universal input voltage operation and individual lamp brightness control. Copyright (C) 2008 John Wiley & Sons, Ltd.
引用
收藏
页码:928 / 940
页数:13
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