Soft switching of IGBTs in lagging lag of ZVT phase shift DC/DC converter

Author

Zeljkovic, Sandra ; Reiter, Tomas ; Gerling, Dieter

Author_Institution

Infineon Technol. AG, Neubiberg, Germany

fYear

2014

fDate

26-28 Aug. 2014

Firstpage

1

Lastpage

9

Abstract

The additional effort to achieve zero voltage transition (ZVT) in the lagging leg of frequently used ZVT phase shift full bridge converter can be avoided by designing the converter with `high speed´ trench fieldstop IGBTs. Thanks to their reduced turn-off but at the same time low turn-on losses, the lost of ZVT in the lagging leg is not anymore critical to converter´s efficiency. Moreover, it can be beneficial due to their improved `conduction to switching loss´ ratio. Based on that conclusion, a simple method to maximize their efficiency by minimizing the resonant inductance is proposed.

Keywords

DC-DC power convertors; inductance; insulated gate bipolar transistors; zero voltage switching; DC-DC converter; ZVT phase shift full bridge converter; conduction to switching loss ratio; high speed trench fieldstop IGBT; lagging leg; resonant inductance; soft switching; turn-on losses; zero voltage transition; Capacitance; Current measurement; Insulated gate bipolar transistors; Logic gates; Loss measurement; Switches; Windings; HV to LV DC/DC converter; high speed IGBTs; hybrid electric vehicle; lagging leg; phase shift full bridge ZVT DC/DC converter;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Applications (EPE'14-ECCE Europe), 2014 16th European Conference on

Conference_Location

Lappeenranta

Type

conf

DOI

10.1109/EPE.2014.6910698

Filename

6910698