Dual Half-Bridge DC-DC Converter With Wide-Range ZVS and Zero Circulating Current

被引：32

作者：

Ye, Zhong ^{[1
]}

机构：

[1] Texas Instruments Inc, Dallas, TX 75243 USA

来源：

IEEE TRANSACTIONS ON POWER ELECTRONICS | 2013年 / 28卷 / 07期

关键词：

Dual half-bridge; full bridge; phase-shifted; zero-voltage switching (ZVS); DESIGN CONSIDERATIONS;

D O I：

10.1109/TPEL.2012.2228278

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 new converter topology that is both high power and digitally controlled combines two half-bridge inverters to operate as a full-bridge power stage using phase-shifting control, but with zero circulating current. Each power switch operates with a nominal 50% duty cycle to achieve zero-voltage switching over a widely varying load, but can also function in pulsewidth modulation mode for increased output voltage regulation range. Light-load efficiency can be improved by turning OFF one half-bridge inverter. A 1-kW 385-48 V converter designed to validate the concept achieved both 96+% efficiency and high power density.

引用

页码：3276 / 3286

页数：11

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