Design and implementation of a single-stage LLC resonant converter with high power factor

Ching Ming Lai, Rong Chyang Lee, Te Wei Wang, Kuo Kai Shyu

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

19 Scopus citations

Abstract

A zero voltage switching (ZVS) based on LLC resonant topology is proposed to implement a single-stage ac/dc converter which performs both input-current harmonics reduction and power factor correction (PFC). By integrating a boost-PFC cell and an LLC resonant dc/dc cell into a single power conversion stage, the power losses in the secondary rectifier diodes and the primary switches can be significantly reduced. The proposed architecture exhibits extreme simplicity and lower cost while providing nearly unity power factor and well-regulated output; hence, the proposed converter is very suitable for low power level applications. The operating principles and design procedures for the proposed converter are analyzed and discussed in this paper. Simulation and experimental results from a 125W laboratory prototype are provided to verify the feasibility.

Original languageEnglish
Title of host publication2007 IEEE International Symposium on Industrial Electronics, ISIE 2007, Proceedings
Pages455-460
Number of pages6
DOIs
StatePublished - 2007
Event2007 IEEE International Symposium on Industrial Electronics, ISIE 2007 - Caixanova - Vigo, Spain
Duration: 4 Jun 20077 Jun 2007

Publication series

NameIEEE International Symposium on Industrial Electronics

Conference

Conference2007 IEEE International Symposium on Industrial Electronics, ISIE 2007
Country/TerritorySpain
CityCaixanova - Vigo
Period4/06/077/06/07

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