Passive soft-switching snubber circuit with energy recovery

Author

Isurin, Alexander ; Cook, Alexander

Author_Institution

Vanner Inc., Hilliard, OH

fYear

2008

fDate

24-28 Feb. 2008

Firstpage

465

Lastpage

468

Abstract

This paper describes a passive snubber circuit with energy recovery to the source. This circuit uses only passive components and can work with a full-leg power conversion topology, i.e., using standard IGBT modules. The circuit provides soft-switching, that is ZVS turn off, reduces slew rate, and increases efficiency around 1% under full load conditions (tested on a DC-AC inverter at 12 kW load and 120 VAC output). The authors suggest that this passive snubber circuit can work with many types of converters.

Keywords

DC-AC power convertors; insulated gate bipolar transistors; invertors; network topology; passive networks; snubbers; zero voltage switching; DC-AC inverter; IGBT modules; ZVS; energy recovery; full-leg power conversion topology; passive soft-switching snubber circuit; power 12 kW; slew rate reduction; soft-switching circuits; Capacitors; Circuit testing; Costs; Inductance; Insulated gate bipolar transistors; Power conversion; Pulse width modulation inverters; Snubbers; Switches; Zero voltage switching;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Power Electronics Conference and Exposition, 2008. APEC 2008. Twenty-Third Annual IEEE

Conference_Location

Austin, TX

ISSN

1048-2334

Print_ISBN

978-1-4244-1873-2

Electronic_ISBN

1048-2334

Type

conf

DOI

10.1109/APEC.2008.4522762

Filename

4522762