Steady-state analysis of a novel forward-flyback-mixed converter

被引：0
|
作者：
Kusuhara, Yoshito [1 ]
Ninomiya, Tamotsu [2 ]
Nakagawa, Shin [3 ]
机构：
[1] Kyushu Polytech Coll, Dept Prod Electro Syst Engn, Shi 1665-1, Kitakyushu, Fukuoka, Japan
[2] Kyushu Univ, Dept Elect & Elect Syst Engn, Higashi kuFukuoka, Japan
[3] tFIDELIX Co, Tokyo, Japan
来源：
2006 12TH INTERNATIONAL POWER ELECTRONICS AND MOTION CONTROL CONFERENCE, VOLS 1-4 | 2006年
关键词：
D O I：
暂无
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
Based on the conventional forward converter, the transformer's magnetizing inductance is made small, and a reset winding of the transformer is moved to the secondary side, and furthermore, the anode terminal of the freewheeling diode is connected at a different point. Then a novel topology of DC-DC converter is proposed, and its power efficiency is predicted to be improved. This converter has both operations of forward and flyback manners, and both of two diodes in the output side are maintained to be ON for a portion of the switching period. This operation results in the zero ripple of the output inductor current. This novel converter is confirmed to have some prominent features of withstand-voltage reduction for the main switch and ripper reduction of the output inductor current. As a result; this converter obtains a higher efficiency over the conventional forward converter. This paper describes its basic operation, and analyzes the steady-state characteristics by means of the extended state-space averaging method. The analytical results are confirmed experimentally, and an experimental result of a high efficiency of 94% was obtained for the Input voltage of 140V and the output load of 18V and 4A.
引用
收藏
页码：894 / +
页数：2
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