Title :
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
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;
Conference_Titel :
Applied Power Electronics Conference and Exposition (APEC), 2013 Twenty-Eighth Annual IEEE
Conference_Location :
Long Beach, CA
Print_ISBN :
978-1-4673-4354-1
Electronic_ISBN :
1048-2334
DOI :
10.1109/APEC.2013.6520177
