Figure of merit for selecting super-junction MOSFETs in high efficiency voltage source converters

Andrew Hopkins, Neville McNeill, Philip H Anthony, Phil Mellor

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

9 Citations (Scopus)
410 Downloads (Pure)

Abstract

Silicon super-junction MOSFETs have very low on-state resistances and fast switching characteristics. However, their use in voltage-source converters is hindered by the poor reverse recovery performance of their body drain diode and an adverse output capacitance characteristic. These both act to increase the overall switching loss. The on-state resistance and output capacitance characteristics of super junction devices are both related to the area of the silicon die. As this increases, the on-state resistance decreases but the output capacitance increases. A figure of merit is evaluated with both predicted and experimental results using a 400-V, DC-DC synchronous buck-converter operating over a range of output currents and switching frequencies.
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)
Pages3788-3793
Number of pages6
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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  • Projects

    Low Carbon Vehicle - Warwick

    Mellor, P. H.

    1/10/111/04/16

    Project: Research

    Cite this

    Hopkins, A., McNeill, N., Anthony, P. H., & Mellor, P. (2016). Figure of merit for selecting super-junction MOSFETs in high efficiency voltage source converters. In 2015 IEEE Energy Conversion Congress and Exposition (ECCE 2015): Proceedings of a meeting held 20-24 September 2015, Montreal, Quebec, Canada (pp. 3788-3793 ). (IEEE Energy Conversion Congress and Exposition (ECCE)). Institute of Electrical and Electronics Engineers (IEEE). https://doi.org/10.1109/ECCE.2015.7310195