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FITMOS modeling and dynamic on-state characteristic evaluation

Author(s)
Li, Wei; Page, William; Perreault, David J.
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Abstract
This paper presents a study of the detailed characteristics of the new Floating Island and Thick Bottom Oxide Trench Gate MOSFET (FITMOS) developed at Toyota. FITMOS has tremendous potential for automotive applications due to its low on-resistance, improved temperature coefficient of resistance and low gate charge. During the study, the key characteristics of this novel FITMOS were investigated; a behavioral model was developed in SPICE for simulation and optimization purposes, and their applications in the design of automotive power electronics was explored. In this study, we also identify a previously unrecognized phenomenon in the FITMOS MOSFET. In particular, we show that the on-state resistance of the device depends on both frequency and peak di/dt at a given frequency. This dynamic on-resistance variation can have a significant application impact.
Date issued
2010-11
URI
http://hdl.handle.net/1721.1/72469
Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science; Massachusetts Institute of Technology. Laboratory for Electromagnetic and Electronic Systems; Massachusetts Institute of Technology. Research Laboratory of Electronics
Journal
IEEE Energy Conversion Congress and Exposition 2010 (ECCE)
Publisher
Institute of Electrical and Electronics Engineers (IEEE)
Citation
Li, Wei, William Page, and David J. Perreault. “FITMOS Modeling and Dynamic On-state Characteristic Evaluation.” IEEE Energy Conversion Congress and Exposition 2010 (ECCE). 378–385. © Copyright 2010 IEEE
Version: Final published version
ISBN
978-1-4244-5287-3
978-1-4244-5286-6

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