A soft switching active snubber optimized for IGBTs in single switch unity power factor three-phase diode rectifiers

Author

Chen, Keming ; Elasser, Ahmed ; Torrey, David A.

Author_Institution

REM Technologies, Schenectady, NY, USA

fYear

1994

fDate

13-17 Feb 1994

Firstpage

280

Abstract

The soft switching snubber circuit provides zero-voltage turn-off for the main switch. The high turn-off losses of the IGBT due to the current tailing are reduced by zero-voltage switching. This allows the circuit to be operated at very high switching frequencies with regulated DC output voltage, high quality input current and unity input power factor. Simulation and experimental results are included

Keywords

insulated gate bipolar transistors; overvoltage protection; power factor; rectifying circuits; semiconductor switches; solid-state rectifiers; switching circuits; IGBT; current tailing; high quality input current; high turn-off losses; regulated DC output voltage; single switch; soft switching active snubber; three-phase diode rectifiers; unity power factor; very high switching frequencies; zero-voltage turn-off; Circuit simulation; Diodes; Insulated gate bipolar transistors; Reactive power; Rectifiers; Snubbers; Switches; Switching circuits; Switching frequency; Zero voltage switching;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Power Electronics Conference and Exposition, 1994. APEC '94. Conference Proceedings 1994., Ninth Annual

Conference_Location

Orlando, FL

Print_ISBN

0-7803-1456-5

Type

conf

DOI

10.1109/APEC.1994.316387

Filename

316387