Zero-voltage-switching realized by magnetizing current of transformer in push-pull DC-DC converter

Author

Shoyama, Masahito ; Harada, Koosuke

Author_Institution

Dept. of Electron., Kyushu Univ., Fukuoka, Japan

fYear

1991

fDate

5-8 Nov 1991

Firstpage

640

Lastpage

647

Abstract

The authors present a novel type of zero-voltage-switched (ZVS) push-pull DC-DC power converter with two synchronous rectifiers in the secondary circuit. ZVS is realized using the magnetizing current of the transform as a current source during the commutation. The output voltage is controlled by pulsewidth modulation (PWM) with a constant switching frequency. The circuit operation is described using equivalent circuits. The steady-state and dynamic characteristics are analyzed. The characteristics were confirmed experimentally

Keywords

commutation; equivalent circuits; network analysis; power convertors; power transformers; pulse width modulation; rectifiers; switching circuits; PWM; ZVS; characteristics; commutation; constant switching frequency; equivalent circuits; magnetizing current; network analysis; power transformers; push-pull DC-DC power converter; synchronous rectifiers; zero voltage switching; DC-DC power converters; Equivalent circuits; Magnetic analysis; Pulse width modulation; Rectifiers; Space vector pulse width modulation; Steady-state; Switching frequency; Voltage control; Zero voltage switching;

fLanguage

English

Publisher

ieee

Conference_Titel

Telecommunications Energy Conference, 1991. INTELEC '91., 13th International

Conference_Location

Kyoto

Print_ISBN

0-87942-670-5

Type

conf

DOI

10.1109/INTLEC.1991.172461

Filename

172461