A High Step-up Passive Absorption Circuit Used in Non-Isolated High Step-up Converter

被引：0
作者：
Hu, Yihua [1 ]
Deng, Yan [1 ]
Long, Jiangtao [1 ]
Lu, Xiaoxun [1 ]
He, Xiangning [1 ]
机构：
[1] Zhejiang Univ, Coll Elect Engn, Hangzhou 310003, Zhejiang, Peoples R China
来源：
2013 TWENTY-EIGHTH ANNUAL IEEE APPLIED POWER ELECTRONICS CONFERENCE AND EXPOSITION (APEC 2013) | 2013年
关键词：
DC-DC CONVERTER; ZVT BOOST CONVERTER; COUPLED INDUCTORS; DESIGN; GAIN; CELL;
D O I：
暂无
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：
To obtain a high step-up gain with high efficiency in distributed power sources application, such as photovoltaic and fuel cells, a passive absorption with voltage multiplier character is inserted in the interleaved Flyback-Forward converter to provide another design freedom for leakage energy recycle and voltage gain extension. By high step-up passive-clamp circuit, the voltage spikes on the MOSFETs are clamped and the energy in leakage inductance of coupled inductor can be recycled to get high output voltage. Moreover, high voltage-conversion ratio is achieved. The operational principle and characteristics of the proposed converter are presented, and verified experimentally with a 500W prototype converter.
引用
收藏
页码：1966 / 1971
页数：6
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