A new isolated current-fed PWM DC-DC converter with small inductance and no deadtime operation

被引：0
|
作者：
Song, W [1 ]
Lehman, B [1 ]
机构：
[1] Northeastern Univ, Dept Elect & Comp Engn, Boston, MA 02115 USA
来源：
APEC 2004: NINETEENTH ANNUAL IEEE APPLIED POWER ELECTRONICS CONFERENCE AND EXPOSITION, VOLS 1-3 | 2004年
关键词：
current-fed; PWM; deadtime; full-bridge; half-bridge;
D O I：
暂无
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 isolated current-fed PWM DC-DC converter with small inductance and no deadtime operation is presented and analyzed. The new topology has 3.5 times smaller inductance than that of current-fed full-bridge converter, thus having faster transient response speed. Other characteristics include simple self-driven synchronous rectification and housekeeping, smaller output filter capacitance, and lower voltage stress on all primary side power switches. Additionally, it has no start-up problem that traditional current-fed full-bridge topologies suffer. A 48V/100W prototype DC-DC converter has been tested for the verification of the principles. Both simulations and experiments verify the feasibility and advantages of the new topology.
引用
收藏
页码：1429 / 1435
页数：7
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