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Electrothermal modelling and measurements of parallel-connected VTH mismatched SiC MOSFETs under inductive load switching
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Mendy, Simon, Wu, Ruizhu, Ortiz Gonzalez, Jose Angel and Alatise, Olayiwola M. (2022) Electrothermal modelling and measurements of parallel-connected VTH mismatched SiC MOSFETs under inductive load switching. Materials Science Forum, 1062 . pp. 533-538. doi:10.4028/p-z4mz75 ISSN 1662-9752.
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WRAP-electrothermal-modelling-measurements-parallel-connected-VTH-mismatched-SiC-MOSFETs-under-inductive-load-switching-2022.pdf - Published Version - Requires a PDF viewer. Available under License Creative Commons Attribution 4.0. Download (1140Kb) | Preview |
Official URL: http://dx.doi.org/10.4028/p-z4mz75
Abstract
In high current applications that use several parallel-connected SiC MOSFETs (e.g., automotive traction inverters), optimal current sharing is integral to overall system reliability. Threshold voltage (VTH) variation in SiC MOSFETs is a prevalent reliability issue that can cause current mismatch in parallel-connected devices. Using experimental measurements and compact modelling, a technique has been developed for characterising the impact of VTH variation in up to 8 parallel-connected SiC MOSFETs. This model can predict the allowable VTH variation for optimal current sharing. It can also be used to evaluate the impact of other parameters, including gate driver synchronisation, on current sharing in parallel devices.
Item Type: | Journal Article | ||||||
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Subjects: | T Technology > TA Engineering (General). Civil engineering (General) T Technology > TK Electrical engineering. Electronics Nuclear engineering |
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Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | ||||||
Library of Congress Subject Headings (LCSH): | Metal oxide semiconductor field-effect transistors, Electrical engineering -- Research | ||||||
Journal or Publication Title: | Materials Science Forum | ||||||
Publisher: | Trans Tech Publications Ltd. | ||||||
ISSN: | 1662-9752 | ||||||
Official Date: | 31 May 2022 | ||||||
Dates: |
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Volume: | 1062 | ||||||
Page Range: | pp. 533-538 | ||||||
DOI: | 10.4028/p-z4mz75 | ||||||
Status: | Peer Reviewed | ||||||
Publication Status: | Published | ||||||
Access rights to Published version: | Open Access (Creative Commons) | ||||||
Date of first compliant deposit: | 11 August 2022 | ||||||
Date of first compliant Open Access: | 24 August 2022 |
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