Self-oscillating Galvanic Isolated Bidirectional Very High Frequency DC-DC Converter

Jeppe Arnsdorf Pedersen, Mickey Pierre Madsen, Arnold Knott, Arnold Knott, Michael A. E. Andersen

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

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Abstract

This paper describes a galvanic isolated bidirectional Very High Frequency (VHF = 30 MHz - 300MHz) ClassE converter. The reason for increasing the switching frequency is to minimize the passive components in the converter. To make the converter topology bidirectional the rectifier has to be synchronous. This increases the complexity of the gate drives, which in this paper is solved by using a self-oscillating gate drive. A bidirectional converter has been implemented and is described in this paper; the converter reaches efficiencies above 80% in forward conduction mode and 73.5% in reverse conduction mode. The designed converter operates at a switching frequency of 35.6 MHz, which is well within the VHF range. The same converter is also implemented with PCB embedded inductors to minimize cost and the physical volume of the total converter.
Original languageEnglish
Title of host publicationProceedings of APEC 2015
Number of pages5
PublisherIEEE
Publication date2015
DOIs
Publication statusPublished - 2015
Event30th Applied Power Electronics Conference and Exposition - Charlotte Convention Center, Charlotte, NC, United States
Duration: 15 Mar 201519 Mar 2015

Conference

Conference30th Applied Power Electronics Conference and Exposition
LocationCharlotte Convention Center
CountryUnited States
CityCharlotte, NC
Period15/03/201519/03/2015

Keywords

  • Self-oscillating
  • Galvanic Isolated
  • Bidirectional
  • Very High Frequency
  • DC-DC Converter
  • VHF

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