A Novel Flicker-free AC-DC LED Driver Without Electrolytic Capacitor

被引：0
|
作者：
Wang, Lei [1 ,2 ]
Zhang, Bo [1 ]
Qiu, Dongyuan [1 ]
Wang, Lei [1 ,2 ]
机构：
[1] South China Univ Technol, Sch Elect Power, Guangzhou 510640, Guangdong, Peoples R China
[2] Hanshan Normal Univ, Dept Phys & Elect Engn, Chaozhou 521041, Guangdong, Peoples R China
来源：
2017 IEEE INTERNATIONAL CONFERENCE ON INDUSTRIAL TECHNOLOGY (ICIT) | 2017年
关键词：
CONVERTER;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this paper, a novel flicker-free ac/dc LED driver without electrolytic capacitor is presented. The driver comprises a single-stage boost-forward converter and a bidirectional buck-boost converter, which serves to bypass the low frequency ripple. Therefore, electrolytic capacitor is no longer needed. Compared with other electrolytic capacitor-less topologies, the proposed driver has the advantages of almost unity input power factor, less energy storage, less capacitance needed, and constant output current. The operation principle, design process, and control strategy are presented. And the feasibility of the proposed converter is verified by a prototype with 30-V, 1.0-A output.
引用
收藏
页码：370 / 375
页数：6
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