Comparative Topology and Power Loss Study for High Power Density and High Conversion Ratio Integrated Switching Power Converters

被引：0

作者：

Wei, Kang ^{[1
]}

Ma, D. Brian ^{[1
]}

机构：

[1] Univ Texas Dallas, Dept Elect & Comp Engn, Intergrated Power Syst Lab, Richardson, TX 75080 USA

来源：

2017 IEEE 8TH LATIN AMERICAN SYMPOSIUM ON CIRCUITS & SYSTEMS (LASCAS) | 2017年

关键词：

switching converter; power loss; zero-voltage-transition; 3-level topology;

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：

This paper presents a theoretical topology and power loss study on three fundamental inductive switching converters, with focus on high power density and high conversion ratio. With high input voltage and at high switching frequency, efficiency of conventional half-bridge buck converters is severely degraded, due to significant switching loss. Zero-voltage-transition (ZVT) buck and 3-level buck converters become more attractive in this scenario. Detailed power loss breakdowns of the two converter topologies are derived and verified to examine their effectiveness on efficiency improvement. New design method is proposed to achieve optimized design for both efficiency and power density.

引用

页数：4

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