Skip to main navigation Skip to search Skip to main content

A Variable Gate Resistance SiC MOSFET Drive Circuit

  • School of Electrical Engineering and Automation, Harbin Institute of Technology

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

A variable gate resistance SiC MOSFET drive circuit is proposed. The switching speed of SiC MOSFET is improved by switching different drive resistors at different stages of the SiC MOSFET switching process. In the early stage of the device switch, two driving resistors are used to charge and discharge the gate electrode together to reduce the delay of the device switch and increase the rising rate of voltage and current. Then the small drive resistance is cut out and the large drive resistance is used to suppress the voltage and current spikes and oscillations in the switching process of SiC MOSFET. The SiC MOSFET driving circuit test platform was built to verify the effectiveness of the proposed driving circuit. The experimental results show that the rising rate of drain current Id in the switching process of SiC MOSFET driven by variable grid resistance SiC MOSFET is increased by 118%, the rising rate of drain-source voltage Vds in the switching process is increased by 117%, and the total loss in the switching process is reduced by 15.34%.

Original languageEnglish
Title of host publicationProceedings - IECON 2020
Subtitle of host publication46th Annual Conference of the IEEE Industrial Electronics Society
PublisherIEEE Computer Society
Pages2683-2688
Number of pages6
ISBN (Electronic)9781728154145
DOIs
StatePublished - 18 Oct 2020
Externally publishedYes
Event46th Annual Conference of the IEEE Industrial Electronics Society, IECON 2020 - Virtual, Singapore, Singapore
Duration: 19 Oct 202021 Oct 2020

Publication series

NameIECON Proceedings (Industrial Electronics Conference)
Volume2020-October

Conference

Conference46th Annual Conference of the IEEE Industrial Electronics Society, IECON 2020
Country/TerritorySingapore
CityVirtual, Singapore
Period19/10/2021/10/20

Keywords

  • SiC MOSFET
  • drive circuit
  • switching loss
  • switching speed
  • variable gate resistance

Fingerprint

Dive into the research topics of 'A Variable Gate Resistance SiC MOSFET Drive Circuit'. Together they form a unique fingerprint.

Cite this