Improved ZVS DC-DC Converter With a High Voltage Gain and a Ripple-Free Input Current

被引：46
|
作者：
Do, Hyun-Lark [1 ]
机构：
[1] Seoul Natl Univ Sci & Technol, Seoul 139743, South Korea
来源：
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS | 2012年 / 59卷 / 04期
基金：
新加坡国家研究基金会;
关键词：
High voltage gain; soft-switching; step-up converter; zero-current-switching; zero-voltage-switching; HIGH-STEP-UP; HIGH-EFFICIENCY; CELL; FAMILY;
D O I：
10.1109/TCSI.2011.2169741
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：
An improved zero-voltage-switching (ZVS) dc-dc converter with a high voltage gain and a ripple-free input current is proposed. It consists of two converter cells-a boost cell and an asymmetrical pulse-width-modulation (APWM) full-bridge cell. The boost cell in the proposed converter has the capabilities of providing a ripple-free input current. The APWM full-bridge cell provides a high voltage gain. The output diodes are under zero-current-switching (ZCS) during turn-off. The proposed converter has high efficiency due to soft-switching operation in full-bridge switches. Steady-state analysis of the converter is presented to determine the circuit parameters. A laboratory prototype of the proposed converter is developed, and its experimental results are presented for validation.
引用
收藏
页码：846 / 853
页数：8
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