A demagnetization circuit for single-ended forward converter

S. K. Changchien, Tsorng-Juu Liang, K. C. Tseng, Jiann-Fuh Chen, Ray-Lee Lin

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Citations (Scopus)

Abstract

This paper presents a novel demagnetization scheme for single-ended forward converter. In the past, many prior transformer core reset methods have been proposed in order to avoid the transformer saturation, such as tertiary transformer winding, RCD clamp, resonant reset, active clamp and two-switch forward topology etc.. However, the lower efficiency, complicated transformer winding structure and the cost of too many added elements are the main drawbacks. In this paper, a novel demagnetization scheme for single-ended forward converter is presented. The proposed demagnetization circuit is very simple and the transformer demagnetization can be reached by adding two diodes and a clamping capacitor. In addition, the transformer design and PWM control circuit for the single-ended forward converter with proposed demagnetization circuit is the same as conventional forward converter. Finally, the operation and circuit performance of the single-ended forward converter with proposed demagnetization circuit are demonstrated with an experimental prototype that delivers a 5V/10A output from a 36-72V input at the maximum efficiency of 88%.

Original languageEnglish
Title of host publicationProceedings of the 33rd Annual Conference of the IEEE Industrial Electronics Society, IECON
Pages1390-1395
Number of pages6
DOIs
Publication statusPublished - 2007 Dec 1
Event33rd Annual Conference of the IEEE Industrial Electronics Society, IECON - Taipei, Taiwan
Duration: 2007 Nov 52007 Nov 8

Publication series

NameIECON Proceedings (Industrial Electronics Conference)

Other

Other33rd Annual Conference of the IEEE Industrial Electronics Society, IECON
CountryTaiwan
CityTaipei
Period07-11-0507-11-08

All Science Journal Classification (ASJC) codes

  • Control and Systems Engineering
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'A demagnetization circuit for single-ended forward converter'. Together they form a unique fingerprint.

Cite this