Novel zero-voltage and zero-current-switching (ZVZCS) full-bridge PWM converter using coupled output inductor

被引:67
作者
Choi, HS [1 ]
Kim, JW [1 ]
Cho, BH [1 ]
机构
[1] Seoul Natl Univ, Sch Elect Engn, Seoul 151742, South Korea
关键词
full-bridge; PWM converter; zero-current-switching; zero-voltage-switching;
D O I
10.1109/TPEL.2002.802179
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
A 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.
引用
收藏
页码:641 / 648
页数:8
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