Losses analysis and low standby losses quasi-resonant flyback converter design

Guan Chun Huang, Tsorng-Juu Liang, Chen Kai-Hui Chen

Research output: Contribution to conferencePaperpeer-review

13 Citations (Scopus)

Abstract

In this paper, an AC-DC flyback converter with low power loss during low load condition is designed and implemented. A power loss model and breakdown of the quasi-resonant flyback converter is not only derived, but also analyzed with mathematic analysis software, MathCAD ®. A new efficiency oriented burst mode control method is proposed to improve the system efficiency under standby condition. A laboratory prototype quasi-resonant flyback converter with universal range input voltage of 90264 V rms and output 24V/4.17A is implemented to verify the theoretical analysis. The power loss of the quasi-resonant flyback converter at 0.25 W load and 264 V rms is 160 mW that achieve the Energy Star Standard.

Original languageEnglish
Pages217-220
Number of pages4
DOIs
Publication statusPublished - 2012 Sep 28
Event2012 IEEE International Symposium on Circuits and Systems, ISCAS 2012 - Seoul, Korea, Republic of
Duration: 2012 May 202012 May 23

Other

Other2012 IEEE International Symposium on Circuits and Systems, ISCAS 2012
CountryKorea, Republic of
CitySeoul
Period12-05-2012-05-23

All Science Journal Classification (ASJC) codes

  • Hardware and Architecture
  • Electrical and Electronic Engineering

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