谐振复位双开关正激变换器的研究  

Study of Resonant Reset Dual Switch Forward Converter

作　　者：顾晓明[1] 顾亦磊[1] 杜宇[1] 吴燮华[1] 

机构地区：[1]浙江大学电气工程学院,浙江杭州310027

出　　处：《电源技术应用》2004年第6期321-325,共5页Power Supply Technologles and Applications

摘　　要：推荐了一种谐振复位双开关正激型 DC/DC 变换器。它不仅克服了谐振复位单开关正激变换器开关电压应力大和变换效率低的缺点,而且具有占空比可以大于50%的优点。因此,该变换器可以应用于高输入电压、宽变化范围、高效率要求的场合。对该拓扑的工作原理和特性进行了详细的描述。最后通过实验证实了该拓扑的上述优点。It is presented a topology named resonant reset dual switch forward DC/DC converter, which overcomes the dis- advantage of high voltage stress on main switches and maintains the advantage that duty cycle can be more than 50%. Therefore, this proposed topology is very attractive for high input, wide range, high efficiency applications. The operation principle and characteristic of this topology are analyzed in detail. Finally, the advantages mentioned above are verified by experimental result.

关 键 词：谐振复位 双开关 正激变换器 

分 类 号：TM46[电气工程—电器] TM13