An Interleaved-Series/Parallel Forward Converter with Wide Input Voltage Range

被引：0
|
作者：
Zhang, Junjun [1 ]
Wu, Hongfei [1 ]
Xing, Yan [1 ]
Xia, Yanbing [1 ]
Sun, Kai [2 ]
机构：
[1] Nanjing Univ Aeronaut & Astronaut, Jiangsu Key Lab New Energy Generat & Power Conver, Nanjing 210016, Peoples R China
[2] Tsinghua Univ, Dept Elect Engn, State Key Lab Power Syst, Beijing 100084, Peoples R China
来源：
38TH ANNUAL CONFERENCE ON IEEE INDUSTRIAL ELECTRONICS SOCIETY (IECON 2012) | 2012年
基金：
中国国家自然科学基金;
关键词：
RESET DUAL SWITCH; ACTIVE-CLAMP;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A novel interleaved-series/parallel forward converter (ISP-FC) is proposed. The ISP-FC is composed of two low-voltage switching-legs and a high-voltage switching leg. The three switching-legs construct two forward cells. The voltage stress on the low-voltage switching-legs is only half of the input voltage while that on the high-voltage switching-leg is the input voltage. The maximum duty cycle of the ISP-FC can achieve 0.67, 1.33 times of that of the two-switch forward converter, which leads to wide input voltage range. The high-voltage leg switches can be soft-switched when duty cycle less than 0.5 while the low-voltage leg switches can be soft-switched when duty cycle larger than 0.5. As a result, high efficiency is achieved over a wide voltage range. The operation principles and characteristics of the ISP-FC proposed is analyzed in detail and verified with experimental results.
引用
收藏
页码：227 / 231
页数：5
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