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Faster switching with less overvoltage : operating a SiC-MOSFET at its speed limit

Title data

Rodriguez de Mora, Pablo ; Bakran, Mark-M.:
Faster switching with less overvoltage : operating a SiC-MOSFET at its speed limit.
In: 2020 22nd European Conference on Power Electronics and Applications (EPE'20 ECCE Europe). - Piscataway, NJ : IEEE , 2020 . - pp. 1-9
ISBN 978-9-0758-1536-8
DOI: https://doi.org/10.23919/EPE20ECCEEurope43536.2020.9215810

Official URL: Volltext

Abstract in another language

This paper explores the turn-off switching behavior of a third-generation SiC MOSFET encapsulated in
a TO-247-4 package. The work is focused on the selection of the optimal gate resistance to reduce the
turn-off switching losses. The selection criteria is based on the limitation of the inductive over-voltage
peak (OVPK) for the worst-case scenario i.e. maximum DC-link voltage and switched current. The gate
resistance is tuned to induce the allowed OVPK, gradually, with decreasing gate resistance the switching
losses would be reduced but the OVPK would increase. Contrary to the expected behavior, it is observed
that there exists a threshold value from which, the decrease of the gate resistor reduces the OVPK and,
moreover, the turn-off losses do also decrease.

Further data

Item Type: Article in a book
Refereed: No
Institutions of the University: Faculties > Faculty of Engineering Science
Faculties > Faculty of Engineering Science > Chair Mechatronics
Faculties > Faculty of Engineering Science > Chair Mechatronics > Chair Mechatronics - Univ.-Prof. Dr.-Ing. Mark-M. Bakran
Profile Fields > Advanced Fields > Advanced Materials
Profile Fields > Emerging Fields > Energy Research and Energy Technology
Research Institutions > Affiliated Institutes > TechnologieAllianzOberfranken (TAO)
Profile Fields
Profile Fields > Advanced Fields
Profile Fields > Emerging Fields
Research Institutions
Research Institutions > Affiliated Institutes
Result of work at the UBT: Yes
DDC Subjects: 600 Technology, medicine, applied sciences > 620 Engineering
Date Deposited: 19 Oct 2020 05:52
Last Modified: 30 Mar 2022 10:27
URI: https://eref.uni-bayreuth.de/id/eprint/57257