一种有源箝位正反激变换器的研究  

Study of an active clamp forward-flyback converter

作　　者：郭冠亚[1] 马瑜[1] 谢小高[1] 钱照明[1] 

机构地区：[1]浙江大学电气工程学院,浙江杭州310027

出　　处：《机电工程》2008年第6期60-62,共3页Journal of Mechanical & Electrical Engineering

摘　　要：介绍了一种变压器副边有抽头的有源箝位正反激电路,详细分析了它的工作原理。着重分析了电路开关过程,同时制作了48 V输入、5 V/10 A输出的实验样机。实验结果表明,该电路能提高变压器利用率,有效减小输出电感,提高电路动态性能,其开关管均能实现零电压开通,验证了分析的正确性。A forward-flyback converter with center-tapped transformer was introduced, and its operation principle was analyzed. The switching processes were analyzed in details. A 48 V input and 5 V/10 A output experimental prototype was built up. The experimental results show that, it has advantage in increasing transformer effective and reducing output inductance, the switches could realize zero voltage switching, and verify the theoretical analysis well.

关 键 词：有源箝位 正反激 零电压开关 

分 类 号：TN624[电子电信—电路与系统]