A Predictive Synchronous Rectifier Control for High-Frequency Series Resonant Converters

Sheng Yang Yu, Manish Bhardwaj, Hung Chi Chen

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

A predictive synchronous rectifier (SR) sensing and control method is proposed in this paper using a Rogowski coil with a passive integrator and an adaptive SR turn-off scheme in order to optimize series resonant (SRes) converter efficiency. Unlike other SR sensing methods used in SRes converters, the SR sensing method proposed here has high bandwidth, can be operated at high operational frequency and doesn't have SR voltage level limitations. Therefore, this method is suitable for optimizing the efficiency of a high-frequency, high-power-density SRes converter. This paper discusses the operation principles and experimental results of the method on a 6.6-kW capacitor-inductor-inductor-inductor-capacitor (CLLLC) series resonant dual active bridge converter.

Original languageEnglish
Title of host publicationAPEC 2020 - 35th Annual IEEE Applied Power Electronics Conference and Exposition
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages2254-2259
Number of pages6
ISBN (Electronic)9781728148298
DOIs
StatePublished - Mar 2020
Event35th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2020 - New Orleans, United States
Duration: 15 Mar 202019 Mar 2020

Publication series

NameConference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
Volume2020-March

Conference

Conference35th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2020
CountryUnited States
CityNew Orleans
Period15/03/2019/03/20

Keywords

  • high frequency
  • high voltage
  • on board charger
  • resonant converter
  • Rogowski coil
  • SR
  • synchronous rectifier

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