High efficiency bidirectional 5kW DC-DC converter with super-junction MOSFETs for electric vehicle super-capacitor systems

Andrew Hopkins, Neville McNeill, Philip Anthony, Phil Mellor

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

7 Citations (Scopus)
379 Downloads (Pure)

Abstract

This paper presents a high efficiency 5-kW bidirectional DC-DC converter for use in electric vehicle super-capacitor systems. Super-junction MOSFETs are deployed in the power stage to minimize losses. This is achieved using a snubber inductor and by arranging the gate signal underlap delays in order to control charging current caused by the devices' highly non-linear output capacitance and to deactivate the intrinsic body drain diode respectively. The result is a 5-kW power converter with an estimated efficiency exceeding 99% in the power semiconductor stage and requiring no forced cooling.
Original languageEnglish
Title of host publication2015 IEEE Energy Conversion Congress and Exposition (ECCE 2015)
Subtitle of host publicationProceedings of a meeting held 20-24 September 2015, Montreal, Quebec, Canada
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages4632-4639
Number of pages8
ISBN (Electronic)9781467371506
ISBN (Print)9781467371520
DOIs
Publication statusPublished - Jan 2016
Event2015 IEEE Energy Conversion Congress and Exposition - Montreal Convention Center, Montréal , Canada
Duration: 20 Sep 201524 Sep 2015

Publication series

NameIEEE Energy Conversion Congress and Exposition (ECCE)
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
ISSN (Print)2329-3721

Conference

Conference2015 IEEE Energy Conversion Congress and Exposition
CountryCanada
CityMontréal
Period20/09/1524/09/15

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