Improved digital control scheme of synchronous rectification for resonant converter at light load conditions

Mitsuru Sato, Gamal M. Dousoky, Masahito Shoyama

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

Abstract

This paper proposes a synchronous rectification (SR) control scheme for LLC resonant converter by digital controller. In the proposed SR control scheme, conduction detector circuit senses the drain-source voltage of secondary SR switches to detect the state of paralleled body diode. Digital controller tunes the turn-on and turn-off time of SR switches depending on conduction detector circuit output. Proposed SR control scheme can properly achieve SR at full load condition a simple implementation. Furthermore, it is capable of suppressing circulating current from output to input than conventional SR control scheme in light load condition. Thus, proposed SR control scheme can improve efficiency rather than conventional SR control scheme.

Original languageEnglish
Title of host publication2015 IEEE International Telecommunications Energy Conference, INTELEC 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781479965823
DOIs
Publication statusPublished - Sep 20 2016
Event2015 IEEE International Telecommunications Energy Conference, INTELEC 2015 - Osaka, Japan
Duration: Oct 18 2015Oct 22 2015

Publication series

NameINTELEC, International Telecommunications Energy Conference (Proceedings)
Volume2016-September
ISSN (Print)0275-0473

Other

Other2015 IEEE International Telecommunications Energy Conference, INTELEC 2015
CountryJapan
CityOsaka
Period10/18/1510/22/15

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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    Sato, M., Dousoky, G. M., & Shoyama, M. (2016). Improved digital control scheme of synchronous rectification for resonant converter at light load conditions. In 2015 IEEE International Telecommunications Energy Conference, INTELEC 2015 [7572442] (INTELEC, International Telecommunications Energy Conference (Proceedings); Vol. 2016-September). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/INTLEC.2015.7572442