Non-isolated half bridge buck based converter for VRM application

被引:18
作者
Batarseh, Mad [1 ]
Wang, Xiangcheng [1 ]
Batarseh, Issa [1 ]
机构
[1] Univ Cent Florida, Sch Elect Engn & Comp Sci, Orlando, FL 32816 USA
来源
2007 IEEE POWER ELECTRONICS SPECIALISTS CONFERENCE, VOLS 1-6 | 2007年
关键词
D O I
10.1109/PESC.2007.4342386
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
High efficiency and fast transient response are very critical to Voltage Regulator Module (VRM) and they are contradicted to each other. Continuous output voltage drop with increased current and power densities force small duty cycle operation, resulting in lower efficiency and worse transient response. This paper presents a new, transformer based, nonisolated, buck derived, half bridge converter for VRM application. The transformer in the presented topology helps in decreasing the top switch current as well as the bottom switch voltage stresses, it also extends the duty cycle to a favorable range enhancing the efficiency and transient response by optimizing MOSFET selections. The proposed converter is designed, analyzed and the experimental results are presented.
引用
收藏
页码:2393 / 2398
页数:6
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