Title :
Novel self-excited PWM converters with zero-voltage-switched resonant transition using a saturable core
Author :
Gu, Wen-Jian ; Harada, Koosuke
Author_Institution :
Dept. of Electron., Kyushu Univ., Fukuoka, Japan
Abstract :
A new family of self-excited pulse-width-modulated (PWM) converters with zero-voltage-switched (ZVS) resonant transition is proposed. A saturable core is used in the transformer to realize the ZVS resonant transition during turn-on and turn-off transition. The waveforms of the voltage across and current the switch the flowing in the switch are quasi-square-wave The converters have the advantages of both PWM and resonant mode converters
Keywords :
power convertors; pulse width modulation; transformer cores; ZVS; pulse width modulation; quasi-square-wave; saturable core; self-excited PWM converters; transformer; turn-off transition; turn-on transition; zero-voltage-switched resonant transition; Circuits; Magnetic resonance; Parasitic capacitance; Pulse width modulation; Pulse width modulation converters; Stress; Surges; Switches; Switching converters; Zero voltage switching;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 1992. APEC '92. Conference Proceedings 1992., Seventh Annual
Conference_Location :
Boston, MA
Print_ISBN :
0-7803-0485-3
DOI :
10.1109/APEC.1992.228430
