A magnetically isolated gate driver for high-speed voltage sharing in series-connected MOSFETs

Philip Anthony, Neville McNeill, Derrick Holliday, Duncan Grant, George Hearn

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

8 Citations (Scopus)
3266 Downloads (Pure)

Abstract

A scalable resonant gate drive circuit is described, suitable for driving series-connected MOSFETs in high-voltage, high-speed inverter applications for resistive and capacitive loads. Galvanic isolation is provided by a loop of high voltage wire, which also serves as the resonant inductor in the circuit. Fast dynamic voltage sharing is achieved by delivering equal current to each gate. A prototype is built and tested, demonstrating a 75ns switching time at 5kV using 900V MOSFETs.
Original languageEnglish
Title of host publicationProceedings of the 2011- 14th european conference on power electronics and applications (EPE 2011)
Place of PublicationNew York
PublisherIEEE
Number of pages10
ISBN (Print)9789075815153
Publication statusPublished - 2011
Event2011 14th European Conference on Power Electronics and Applications, EPE 2011 - Birmingham, United Kingdom
Duration: 30 Aug 20111 Sep 2011

Conference

Conference2011 14th European Conference on Power Electronics and Applications, EPE 2011
Abbreviated titleEPE 2011
CountryUnited Kingdom
CityBirmingham
Period30/08/111/09/11

Keywords

  • gate driver
  • power electronics
  • MOSFET
  • transformer
  • isolated
  • capacitance
  • inductance
  • logic gates
  • MOSFETs
  • optical switches
  • wires

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