Isolated Bidirectional Full-Bridge DC-DC Converter With a Flyback Snubber

被引：247

作者：

Wu, Tsai-Fu ^{[1
]}

Chen, Yung-Chu ^{[1
]}

Yang, Jeng-Gung ^{[1
]}

Kuo, Chia-Ling ^{[1
]}

机构：

[1] Natl Chung Cheng Univ, Dept Elect Engn, Elegant Power Applicat Res Ctr, Min Hsiung 621, Taiwan

来源：

IEEE TRANSACTIONS ON POWER ELECTRONICS | 2010年 / 25卷 / 07期

关键词：

Flyback converter; isolated full-bridge bidirectional converter; soft start-up; POWER; VOLTAGE;

D O I：

10.1109/TPEL.2010.2043542

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 isolated bidirectional full-bridge dc-dc converter with high conversion ratio, high output power, and soft start-up capability is proposed in this paper. The use of a capacitor, a diode, and a flyback converter can clamp the voltage spike caused by the current difference between the current-fed inductor and leakage inductance of the isolation transformer, and can reduce the current flowing through the active switches at the current-fed side. Operational principle of the proposed converter is first described, and then, the design equation is derived. A 1.5-kW prototype with low-side voltage of 48 V and high-side voltage of 360 V has been implemented, from which experimental results have verified its feasibility.

引用

页码：1915 / 1922

页数：8

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