Experimental Verification of the Power Density Improvement in a GaN Converter with the Enhancement of Layout

Rakesh Ramachandran*, Morten Nymand, Jesper Nielsen

*Corresponding author for this work

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

Abstract

Wide bang gap devices, especially GaN devices are promising in the improvement of power density of the converter due to their fast switching speed and their smaller package. The paper presents how the layout change will affect the power density of an isolated dc-dc converter. In this paper, two layout has been analyzed and presented for paralleling of four GaN FETs. Experimental results from the converters with two different layout are presented in this paper. The power rating of the converter has increased from 2 kW to 2.6 kW converter by the optimization of layout. The measured efficiency curve of both the converter is shown in this paper. The maximum measured efficiency of the converter is 98.5% for the 2 kW converter and 98.8% for the 2.6 kW converter. The power density of the converter has increased by 30% with the optimization of the layout.

Original languageEnglish
Title of host publicationProceedings of the 2018 IEEE Vehicle Power and Propulsion Conference (VPPC)
Number of pages5
PublisherIEEE
Publication date2018
ISBN (Print)978-1-5386-6204-5
ISBN (Electronic)9781538662038
DOIs
Publication statusPublished - 2018
Event2018 IEEE Vehicle Power and Propulsion Conference - Chicago, United States
Duration: 27. Aug 201830. Aug 2018

Conference

Conference2018 IEEE Vehicle Power and Propulsion Conference
Country/TerritoryUnited States
CityChicago
Period27/08/201830/08/2018
SeriesProceedings - IEEE Conference on Vehicle Power and Propulsion (VPPC)
ISSN1938-8756

Keywords

  • DC-DC converter
  • GaN devices
  • High efficiency
  • Magnetics
  • PCB layout

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