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

页码：1966 / 1971

页数：6

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