Drain current injection circuitry for enabling the deployment of super-junction MOSFETs in a 5kW bidirectional DC-DC converter

Andrew Hopkins, Neville McNeill, Philip Mellor

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

1 Citation (Scopus)

Abstract

The paper assesses the potential of employing super-junction MOSFETs in a high efficiency and low cost bidirectional DCDC converter for application in electric vehicle systems. Super-junction MOSFETs have a very low conduction loss, however, their poor intrinsic diode recovery behaviour and high output capacitances means that switching losses can be high in voltage source converters. A drain current injection technique is presented that can be used to mitigate the poor switching characteristics and thus realise excellent power conversion efficiencies. Experimental results are given for a circuit operating at 400V, 5kW and 25kHz and the means of achieving a power conversion efficiency >99% is outlined.
Original languageEnglish
Title of host publication8th IET International Conference on Power Electronics, Machines and Drives (PEMD 2016)
Place of PublicationStevenage
DOIs
Publication statusPublished - 19 Apr 2016
Externally publishedYes
Event8th IET International Conference on Power Electronics, Machines and Drives, PEMD 2016 - Hilton Hotel, Glasgow, United Kingdom
Duration: 19 Apr 201621 Apr 2016

Conference

Conference8th IET International Conference on Power Electronics, Machines and Drives, PEMD 2016
CountryUnited Kingdom
CityGlasgow
Period19/04/1621/04/16

Keywords

  • MOSFET
  • DC-DC power convertors
  • electric vehicles

Fingerprint Dive into the research topics of 'Drain current injection circuitry for enabling the deployment of super-junction MOSFETs in a 5kW bidirectional DC-DC converter'. Together they form a unique fingerprint.

  • Cite this

    Hopkins, A., McNeill, N., & Mellor, P. (2016). Drain current injection circuitry for enabling the deployment of super-junction MOSFETs in a 5kW bidirectional DC-DC converter. In 8th IET International Conference on Power Electronics, Machines and Drives (PEMD 2016) https://doi.org/10.1049/cp.2016.0277