High efficiency is among the most important targets in power electronic converters. A possible approach to obtain this goal is the usage of better switches. This paper is focused at the study and comparison of SiC and Si power MOSFETS in soft switching resonant DC/DC converter. The latter converter being a part of light battery charger used in ultra-light electric vehicles is realized and investigated. The losses in the power switches are compared mathematically, with simulations and experimental verification. Two types of transistors are considered. First traditional state of the art Si-technology using a FREDFET (fast recovery diode MOSFET) and it is compared with what the SiC technology offers, using a fast Schottky antiparallel diode. As an example a 1500 W series resonance converter with input voltage of 400 V and output voltage of 100 V is used. The latter voltage permitting the use of Schottky diodes at the secondary side. The losses in both converters are compared via calorimetric measurements to avoid accuracy problems as in loss measurements with an oscilloscope for example.

Original document

The different versions of the original document can be found in:

Back to Top

Document information

Published on 01/01/2016

Volume 2016, 2016
DOI: 10.1109/epepemc.2016.7752119
Licence: CC BY-NC-SA license

Document Score


Views 1
Recommendations 0

Share this document

claim authorship

Are you one of the authors of this document?