Transformerless DC-DC converters with a very high DC line-to-load voltage ratio

被引：10

作者：

Axelrod, B ^{[1
]}

Berkovich, Y ^{[1
]}

Ioinovici, A ^{[1
]}

机构：

[1] Holon Acad Inst Technol, Dept Elect & Elect Engn, IL-58102 Holon, Israel

来源：

JOURNAL OF CIRCUITS SYSTEMS AND COMPUTERS | 2004年 / 13卷 / 03期

关键词：

DC-DC converter; switched capacitor; high voltage ratio;

D O I：

10.1142/S0218126604001556

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

By splitting the output capacitor of a basic boost converter, and combining the resulting capacitors with the main switch in the form of a switched-capacitor circuit, a new step-up structure is realized. Without using a transformer, a high line-to-load DC voltage ratio is obtained. An output filter is added, as usual, in boost converters for getting a free-ripple output. The circuit compares favorably with a quadratic boost converter regarding the count of devices and efficiency, even if it presents a lower DC gain. A DC analysis of the novel converter is presented. Experimental and simulation results confirm the theoretical expectations. By increasing the number of capacitors in the switched-capacitor circuit, higher gains can be obtained. Versatility, high voltage gain and good transient response are the features of the proposed converter.

引用

页码：467 / 475

页数：9

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