Soft-Switching Capability Analysis of a qZSI-Based DC/DC Converter

Proceedings of the 12th Biennial Baltic Electronic Conference (BEC2010) 2010
Jānis Zaķis, Dmitri Vinnikov, Indrek Roasto

This paper analyzes the PWM control method for a new type of step-up DC/DC converters with galvanic isolation - the quasi-Z-source inverter (qZSI) based DC/DC converter. The PWM control method for qZSI with soft-switching capability is proposed and experimentally proved. The operation principles of discussed converter are explained. The experimental verification and analysis of top and bottom IGBTs of inverter bridge has been made. A prototype has been built in the laboratory and experiments are presented to analyse the soft-switching capability in loss reduction.

Keywords
DC/DC converter, qZSI, soft-switching
Hyperlink
http://www.elin.ttu.ee/bec/10/

Zaķis, J., Vinnikov, D., Roasto, I. Soft-Switching Capability Analysis of a qZSI-Based DC/DC Converter. In: Proceedings of the 12th Biennial Baltic Electronic Conference (BEC2010), Estonia, Tallinn, 4-6 October, 2010. Tallinn: Tallinn University of Technology Press, 2010, pp.301-304. ISBN 978-1-4244-7358-8.

Publication language
English (en)