A zero voltage and zero current soft-switching PWM DC-DC converter with synchronous phase shifting hybrid rectifier

Author

Akamatsu, Koichiro ; Mishima, Takeshi ; Nakaoka, Mutsuo

Author_Institution

Div. of Marine Eng., Kobe Univ., Higashinada, Japan

fYear

2013

fDate

17-21 March 2013

Firstpage

1

Lastpage

8

Abstract

A new prototype of a secondary-side phase shifted (SPS) soft-switching PWM dc-dc converter is presented in this paper. In the proposed dc-dc converter, soft-switching operations are achievable from full to no loads by utilizing the parasitic inductances of the high frequency (HF) transformer. Beside that, no circulating current occurs in both of the primary and secondary side full-bridge circuits, consequently the related idling power can be minimized. The wide-range soft-switching principle is described in details by actual performances oriented the circuit description. The essential performances, steady-state and switching characteristics of the proposed dc-dc converter are originally demonstrated in experiments by a 1kW-50 kHz prototype, and its practical effectiveness is verified.

Keywords

DC-DC power convertors; PWM power convertors; high-frequency transformers; zero current switching; zero voltage switching; HF transformer; frequency 50 kHz; high-frequency transformer; idling power; parasitic inductances; power 1 kW; primary-side full-bridge circuit; secondary-side full-bridge circuit; secondary-side phase shifted soft-switching PWM DC-DC converter; steady-state characteristic; switching characteristic; synchronous phase shifting hybrid rectifier; wide-range soft-switching principle; zero-voltage zero-current soft-switching PWM DC-DC converter;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Power Electronics Conference and Exposition (APEC), 2013 Twenty-Eighth Annual IEEE

Conference_Location

Long Beach, CA

ISSN

1048-2334

Print_ISBN

978-1-4673-4354-1

Electronic_ISBN

1048-2334

Type

conf

DOI

10.1109/APEC.2013.6520177

Filename

6520177