Single-stage AC-DC converter with a synchronous rectifier

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Abstract

A single-stage AC-DC converter with a synchronous rectifier is proposed. It is based on a boost-flyback topology. The secondary winding is added in the boost inductor at power factor correction (PFC) stage to provide an additional discharging path and suppress DC-bus voltage. A flyback transformer with a center tap is utilized. Therefore, the direct energy transfer of a part of the input energy to the output improves the efficiency. Experimental results for a 60W converter at a constant switching frequency of 70kHz are obtained to show the performance of the proposed converter.

Original languageEnglish
Title of host publicationAdvances in Electronic Engineering, Communication and Management Vol. 1 - Proceedings of 2011 International Conference on Electronic Engineering, Communication and Management, EECM 2011
Pages625-628
Number of pages4
DOIs
StatePublished - 2012
Event2011 International Conference on Electronic Engineering, Communication and Management, EECM 2011 - Beijing, China
Duration: 24 Dec 201125 Dec 2011

Publication series

NameLecture Notes in Electrical Engineering
Volume139 LNEE
ISSN (Print)1876-1100
ISSN (Electronic)1876-1119

Conference

Conference2011 International Conference on Electronic Engineering, Communication and Management, EECM 2011
Country/TerritoryChina
CityBeijing
Period24/12/1125/12/11

Keywords

  • Boost converter
  • flyback converter
  • power factor correction

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