A Comparison of Zero-Voltage and Zero-Current Switching Phase-Shifted PWM DC-DC Converters

Author

Jangwanitlert, A. ; Songboonkaew, J.

Author_Institution

Fac. of Eng., King Mongkut´´s Inst. of Technol., Bangkok

Volume

1

fYear

0

Firstpage

95

Lastpage

100

Abstract

This paper presents a comparative study between an improved full-bridge (FB) zero-voltage and zero-current switching (ZVZCS) phase-shifted pulsewidth modulation (PS-PWM) DC-DC converter and an improved three-level (TL) ZVZCS PS-PWM DC-DC converter. Both converters operate at fixed frequency and achieve zero-voltage-switching on the leading leg of FB or outer switches of TL, and also achieve zero-current-switching on lagging leg of FB or inner switches of TL. To compare the improved FB-ZVZCS-PS-PWM DC-DC converter, the improved TL-ZVZCS-PS-PWM DC-DC converter is that the voltage across the switches is the half of the input voltage. In addition, the operational intervals and analysis are presented. Both prototypes operating at 30 kHz, rated at 300 V input voltage of FB and at 600 V input voltage of TL, and 1 kW output power at 42 V rated output voltage, have been constructed and tested in laboratory

Keywords

DC-DC power convertors; PWM power convertors; bridge circuits; phase shifters; switching convertors; zero current switching; zero voltage switching; 1 kW; 30 kHz; 300 V; 42 V; 600 V; full-bridge zero-voltage and zero-current switching converters; phase-shifted PWM DC-DC converters; pulsewidth modulation DC-DC converter; three-level converter; zero-voltage-switching; DC-DC power converters; Frequency conversion; Leg; Phase modulation; Pulse width modulation; Pulse width modulation converters; Switches; Switching converters; Zero current switching; Zero voltage switching; Three-Level; Zero-voltage and Zero-Current Switching;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Drives Systems, 2005. PEDS 2005. International Conference on

Conference_Location

Kuala Lumpur

Print_ISBN

0-7803-9296-5

Type

conf

DOI

10.1109/PEDS.2005.1619667

Filename

1619667