Analysis, design and derivation of a two-phase converter

被引：32

作者：

Hwu, Kuo-Ing ^{[1
]}

Jiang, Wen-Zhuang ^{[1
]}

机构：

[1] Natl Taipei Univ Technol, Dept Elect Engn, Taipei 10608, Taiwan

来源：

IET POWER ELECTRONICS | 2015年 / 8卷 / 10期

关键词：

switching convertors; diodes; switches; capacitors; low switch voltage stress; two-phase boost converter design; diode voltage stress; conduction loss reduction; ampere-second balance principle; capacitor automatic current sharing; DC-DC CONVERTER; MODE;

D O I：

10.1049/iet-pel.2014.0634

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：

In this study, the performances and features of a two-phase converter with low switch voltage stress and its derivative converters are investigated thoroughly. As compared with the traditional boost converter, the voltage stresses of switches and diodes of the two-phase converter are much lower; thus, the switches and diodes with low-voltage ratings can be used, which reduces the conduction losses. Moreover, the switches are not floating, and the input and output terminals have common ground; hence, no isolated driver is required. In addition, by utilising the ampere-second balance principle, the proposed converter can achieve current sharing without any extra control circuit, leading to simple circuit structure. In the two-phase converter, the capacitors are used not only to realise automatic current sharing but also to further improve the voltage gain. In addition, because of the advantages of the two-phase converter, many types of converters are derived from the two-phase converter. Eventually, the operating principles, mathematical deductions and experimental results for the two-phase converter are given to provide its effectiveness.

引用

页码：1987 / 1995

页数：9

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