UPS circuit configuration incorporating buck-boost chopper circuit with two magnetically coupled coils

被引：3

作者：

Hirachi, K

Nakaoka, M

机构：

[1] Yuasa Corp, Power Supply Div Co, Div Res & Dev, Osaka 5691115, Japan

[2] Yamaguchi Univ, Grad Sch Sci & Engn, Ube, Yamaguchi 7558611, Japan

来源：

ELECTRONICS LETTERS | 2003年 / 39卷 / 18期

关键词：

D O I：

10.1049/el:20030862

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 recent years, UPS circuit configuration without a transformer has attracted special interest. In such UPS topology, the boost chopper circuit is very important for stepping up the battery voltage. Problems with conventional boost chopper circuits are that a high step-up ratio worsens efficiency, and that there is a voltage imbalance between the high side and the low side of DC link voltage. The circuit configuration proposed overcomes the shortcomings of the conventional circuit configuration by employing a buck-boost chopper circuit with two magnetically coupled coils.

引用

页码：1345 / 1346

页数：2