Adaptive driving of synchronous rectifier for LLC converter without signal sensing

Seiya Abe, Sihun Yang, Masahito Shoyama, Toshiyuki Zaitsu, Junichi Yamamoto, Shinji Ueda, Tamotsu Ninomiya

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

13 Citations (Scopus)

Abstract

This paper presents the novel driving technique of synchronous rectifier (SR) for the LLC converter. The unique characteristic of 'Vo D=constant' of LLC converter is utilized to predict optimal duty ratio D, where D is the conduction period of secondary diode. This technique does not need the sensing of SR current neither SR voltage. Additionally, the auto tuning technique is implemented to adjust the duty ratio precisely as well by digital control using TI's DSP of Piccolo TMS320F28027. The technique is confirmed by experimentally.

Original languageEnglish
Title of host publication2013 28th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2013
Pages1370-1375
Number of pages6
DOIs
Publication statusPublished - Jul 1 2013
Event28th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2013 - Long Beach, CA, United States
Duration: Mar 17 2013Mar 21 2013

Publication series

NameConference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC

Other

Other28th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2013
CountryUnited States
CityLong Beach, CA
Period3/17/133/21/13

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

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