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

Author

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

Author_Institution

REM Technol., Schenectady, NY, USA

Volume

10

Issue

4

fYear

1995

fDate

7/1/1995 12:00:00 AM

Firstpage

446

Lastpage

452

Abstract

This paper describes a soft switching active snubber for an IGBT operating in a single switch unity power factor three-phase diode rectifier. The soft switching snubber circuit provides zero-voltage turn-off for the main switch. The high turn-off losses of the IGBT due to 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

AC-DC power convertors; bipolar transistor switches; circuit testing; equivalent circuits; insulated gate bipolar transistors; network analysis; power bipolar transistors; power factor; power semiconductor switches; rectifying circuits; snubbers; switching circuits; voltage control; IGBT; ZVS; active snubber; experiments; simulation; soft switching; three-phase diode rectifiers; turn-off losses; unity power factor; zero-voltage switching; zero-voltage turn-off; Diodes; Insulated gate bipolar transistors; Reactive power; Rectifiers; Snubbers; Switches; Switching circuits; Switching frequency; VHF circuits; Zero voltage switching;

fLanguage

English

Journal_Title

Power Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0885-8993

Type

jour

DOI

10.1109/63.391942

Filename

391942