Analysis and Design of Half-Bridge DC-DC Converters with Current Tripler Rectification

L. Yao, H. Mao, I. Batarseh
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Abstract

A half bridge DC-DC converter with a novel current tripler rectifier (HBCTR) is proposed for low-voltage high-current applications. The proposed topology features high efficiency, good thermal management and simple magnetics design. A unified steady-state model is derived for the symmetrical and asymmetrical controlled HBCTR, and the DC analysis shows that the proposed HBCTR topology has high current capability that meets the high-current low-voltage requirements for microprocessor and telecommunication power supplies. Design considerations are presented based on mathematical analysis. Experimental results show the efficiency improvement compared with other conventional topologies
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电流三倍整流半桥DC-DC变换器的分析与设计
提出了一种具有新型三倍流整流器(HBCTR)的半桥DC-DC变换器,用于低压大电流应用。所提出的拓扑结构具有高效率、良好的热管理和简单的磁性设计。推导了对称和非对称可控HBCTR的统一稳态模型,直流分析表明,所提出的HBCTR拓扑具有大电流能力,满足微处理器和通信电源的大电流低电压要求。在数学分析的基础上提出了设计考虑。实验结果表明,与其他传统拓扑相比,该拓扑的效率有所提高
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