Paper Title:

Bridgeless SEPIC PFC Converter

Periodical Applied Mechanics and Materials (Volumes 313 - 314)
Main Theme Machinery Electronics and Control Engineering II
Chapter Chapter 1: Advancements in Electrical Engineering and Electric Machines Applications
Edited by Jianfeng Li
Pages 51-54
DOI 10.4028/www.scientific.net/AMM.313-314.51
Citation Hyun Lark Do, 2013, Applied Mechanics and Materials, 313-314, 51
Online since March, 2013
Authors Hyun Lark Do
Keywords Bridgeless, Power Factor Correction (PFC), SEPIC Converter
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A new bridgeless powerfactor correction (PFC) converter is proposed in this paper. The proposed converter isbased on single-ended primary inductor converter (SEPIC). In the proposed converter, conductionlosses are reduced and efficiency is improved by eliminating bridge diodes. In addition, input currentripple is significantly reduced by utilizing coupled inductors. Like a conventional SEPIC PFCconverter, the proposed converter provides almost unity power factor (PF). Steady-state analysis ofthe proposed converter is performed. Experimental results based on a prototype are alsoprovided to verify the effectiveness and feasibility of the proposed converter.

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