Title :
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
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;
Conference_Titel :
Telecommunications Energy Conference, 1991. INTELEC '91., 13th International
Conference_Location :
Kyoto
Print_ISBN :
0-87942-670-5
DOI :
10.1109/INTLEC.1991.172461
