Novel zero-voltage and zero-current-switching (ZVZCS) full-bridge PWM converter using coupled output inductor
2002; Institute of Electrical and Electronics Engineers; Volume: 17; Issue: 5 Linguagem: Inglês
10.1109/tpel.2002.802179
ISSN1941-0107
AutoresHangseok Choi, Jungwon Kim, Bo Hyung Cho,
Tópico(s)Analog and Mixed-Signal Circuit Design
ResumoA novel zero-voltage and zero-current-switching (ZVZCS) full-bridge pulse-width-modulated (PWM) converter is proposed to improve the previously proposed ZVZCS full-bridge PWM converters. By employing a simple auxiliary circuit with neither lossy components nor active switches, soft-switching of the primary switches is achieved. The proposed converter has many advantages such as simple auxiliary circuit, high efficiency, low voltage stress of the rectifier diode and self-adjustment of the circulating current, which make the proposed converter attractive for the high voltage and high power applications. The principles of operation and design considerations are presented and verified on the 4 kW experimental converter operating at 80 kHz.
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