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Comparison of bipolar and unipolar SiC switching devices for very high power applications
Mid Sweden University, Faculty of Science, Technology and Media, Department of Information Technology and Media.
Responsible organisation
2007 (English)In: Silicon Carbide and Related Materials 2006, Trans Tech Publications Inc., 2007, Vol. 556-557, 975-978 p.Conference paper, (Refereed)
Abstract [en]

Both unipolar and injection SiC devices can be used for high voltage switching applications; it is not determined, however, for which applications one approach is preferred over the other. In this paper, simulation studies are used to compare the suitability of unipolar devices, in this case a JFET (Junction Field Effect Transistor) against an equivalent FCD (Field Controlled Diode) configuration up to very high voltages. The calculations are performed in a finite element approach, with commercial drift-diffusion software. Numerous drift layers have been simulated in a Monte-Carlo approach to ensure that the optimal design of the drift layers for different breakdown is used. In a static case, purely conductive losses in the drift layer in both unipolar and injection configuration are compared. Additionally the total losses are studied and compared in switched applications for different switching frequencies and current levels.

Place, publisher, year, edition, pages
Trans Tech Publications Inc., 2007. Vol. 556-557, 975-978 p.
Series
MATERIALS SCIENCE FORUM, ISSN 0255-5476 ; 556-557
Keyword [en]
JFET, FCD, injection, unipolar, high power
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:miun:diva-3944ISI: 000249653900232Scopus ID: 2-s2.0-38449098395Local ID: 4339OAI: oai:DiVA.org:miun-3944DiVA: diva2:28976
Conference
6th European Conference on Silicon Carbide and Related Materials, Sep, 2006, Newcastle upon Tyne, England
Available from: 2008-09-30 Created: 2008-09-30 Last updated: 2016-09-26Bibliographically approved

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CiteExportLink to record
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Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf