PWM Power Supply Using SiC RESURF JFETs with High Speed Switching
-
Published:2013-01
Issue:
Volume:740-742
Page:1056-1059
-
ISSN:1662-9752
-
Container-title:Materials Science Forum
-
language:
-
Short-container-title:MSF
Author:
Hatsukawa Satoshi1,
Tsuno Takashi2,
Fujikawa Kazuhiro1,
Shiga Nobuo1,
Wuren Tuya3,
Wada Kazuyuki3,
Ohira Takashi3
Affiliation:
1. Sumitomo Electric Industries, Ltd.
2. Sumitomo Electric Industries, LTD
3. Toyohashi University of Technology
Abstract
400V/2.5A 4H-SiC JFETs, having a reduced surface field (RESURF) structure have been fabricated. Measurements on the on-resistance, blocking, and switching characteristics were carried out. It was confirmed that the JFET has fast switching characteristics. A demonstration of a Pulse Width Modulation (PWM) decoder using JFETs was carried out. The input waveform, which is pulse width modulated 20.5MHz at 4.1MHz sine wave, as able to be decoded at 4.1MHz sine wave.
Publisher
Trans Tech Publications, Ltd.
Subject
Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science