An energy recovery clamp circuit for an isolated DC-DC GaN converter

Rakesh Ramachandran, Morten Nymand

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Abstract

This paper presents the design and analysis of an active energy recovery clamp circuit for an isolated full bridge dc-dc converter. The proposed energy recovery circuit is implemented on a 130V to 52V isolated dc-dc GaN converter. Initially an RCD circuit is used at the output rectifier to reduce the voltage spike from exceeding the desired value. Later, an active energy recovery circuit which includes a clamping diode, a clamping capacitor and a switching converter is used to recover the leakage energy and fed to the output of the main power converter. The efficiency of the converter with the proposed energy recovery circuit is compared with the RCD snubber and presented in this paper.

Original languageEnglish
Title of host publicationProceedings of the 2016 IEEE International Telecommunications Energy Conference
Number of pages5
PublisherIEEE Press
Publication date18. Nov 2016
ISBN (Print)978-1-5090-1878-9
ISBN (Electronic)978-1-5090-1877-2
DOIs
Publication statusPublished - 18. Nov 2016
EventThe 2016 IEEE International Telecommunications Energy Conference - Austin, United States
Duration: 23. Oct 201627. Oct 2016

Conference

ConferenceThe 2016 IEEE International Telecommunications Energy Conference
Country/TerritoryUnited States
CityAustin
Period23/10/201627/10/2016
SeriesInternational Telecommunications Energy Conference. Proceedings
ISSN0275-0473

Keywords

  • dc-dc converter
  • gallium nitride
  • high efficiency
  • magnetics
  • snubber
  • wide band gap devices

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