An electrolytic capacitor-free single stage Buck-Boost LED driver and its integrated solution

Author

Peng Fang ; Yan Fei Liu

Author_Institution

Dept. of Electr. & Comput. Eng., Queen´s Univ., Kingston, ON, Canada

fYear

2014

fDate

16-20 March 2014

Firstpage

1394

Lastpage

1401

Abstract

For a conventional offline Buck-Boost LED driver, significant low frequency ripple current is produced when a high power factor has been achieved. In this paper, an innovative LED driver technology based on the Buck-Boost topology has been proposed. The featured configuration has greatly reduced the low frequency ripple current without compromising power factor performance. High efficiency and low component cost features have also been retained from conventional Buck-Boost LED driver. A 10W, 50V-0.2A experimental prototype has been constructed to verify the performance of the proposed technology.

Keywords

driver circuits; electrolytic capacitors; light emitting diodes; power convertors; power factor; LED driver technology; buck-boost topology; current 0.2 A; electrolytic capacitor-free; integrated solution; low frequency ripple current; power 10 W; power factor; single stage buck-boost LED driver; voltage 50 V; Capacitors; Inductors; Light emitting diodes; Logic gates; Reactive power; Topology; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Power Electronics Conference and Exposition (APEC), 2014 Twenty-Ninth Annual IEEE

Conference_Location

Fort Worth, TX

Type

conf

DOI

10.1109/APEC.2014.6803489

Filename

6803489