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)

    10 Citations (Scopus)
    688 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 Sept 201524 Sept 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
    Country/TerritoryCanada
    CityMontréal
    Period20/09/1524/09/15

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    • Low Carbon Vehicle - Warwick

      Mellor, P. H. (Principal Investigator)

      1/10/111/04/16

      Project: Research

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