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2020 | OriginalPaper | Chapter

Low-Side MOSFET Current Sensing Technique for Automotive Applications

Authors: Patrik Varecha, Giacomo Scelba, Mario Cacciato, Pavol Makys, Matej Pacha

Published in: ELECTRIMACS 2019

Publisher: Springer International Publishing

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Abstract

This paper deals with the analysis and simulation of a current sensing technique based on the estimation of the current flowing in the low-side MOSFETs of an inverter. In this case the power MOSFET is utilized as a current sensor, by estimating its internal on-state resistance. Due to the temperature dependency of the internal on-state resistance, the temperature of MOSFET die has been also estimated by measuring the internal body diode forward voltage of the power MOSFET. The proposed low-side MOSFET current sensing method will be used as current sensing in three-phase inverters for automotive applications.
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Metadata
Title
Low-Side MOSFET Current Sensing Technique for Automotive Applications
Authors
Patrik Varecha
Giacomo Scelba
Mario Cacciato
Pavol Makys
Matej Pacha
Copyright Year
2020
DOI
https://doi.org/10.1007/978-3-030-37161-6_10

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