A Study of AC-DC ZVS-PWM Boost Converters with Silicon Carbide Diodes

Author

Das, Pritam ; Mousavi, Ahmad ; Moschopoulos, Gerry ; Jain, Praveen

Author_Institution

Dept. of Electr. & Comput. Eng., Univ. of Western Ontario, London, ON

fYear

2009

fDate

15-19 Feb. 2009

Firstpage

1158

Lastpage

1164

Abstract

A study of AC-DC zero-voltage switched (ZVS) pulsewidth modulated (PWM) boost converters with silicon carbide (SiC) boost diodes instead of silicon (Si) boost diodes is presented in the paper. The paper reviews the general principles of active auxiliary circuits that are used to help the main boost power switch turn on with ZVS, then explains how these circuits operate differently when SiC boost diodes are used in place of Si diodes. Considerations that should be taken into account when designing a ZVS-PWM boost converter with SiC diodes are discussed, and experimental results obtained from a prototype of an example converter are presented to confirm the concepts discussed in the paper.

Keywords

AC-DC power convertors; PWM power convertors; active networks; diodes; zero voltage switching; AC-DC ZVS-PWM boost converters; AC-DC zero-voltage switched boost converters; active auxiliary circuits; pulsewidth modulated boost converters; silicon carbide boost diodes; Analog-digital conversion; Circuits; Diodes; Electromagnetic interference; Pulse width modulation; Pulse width modulation converters; Silicon carbide; Switches; Switching converters; Zero voltage switching;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Power Electronics Conference and Exposition, 2009. APEC 2009. Twenty-Fourth Annual IEEE

Conference_Location

Washington, DC

ISSN

1048-2334

Print_ISBN

978-1-4244-2811-3

Electronic_ISBN

1048-2334

Type

conf

DOI

10.1109/APEC.2009.4802809

Filename

4802809