摘要
为提高Boost变换器传输效率,提出了一种运用辅助电感和箝位电路实现交错并联Boost电路软开关的拓扑结构,变换器不仅实现了主开关管的零电流开通和零电压关断,大大减少了二极管的反向恢复电流带来的能量损耗。同时实现了辅助开关管的零电压开关,降低了附加损耗。在原理仿真的基础上,设计试制了一台实验样机。实验结果给出了开关管波形,验证了软开关功能的实现。
To improve the transmission efficiency of the Boost converter, this paper presents a topological structure using an auxiliary inductor and clamping circuit to realize soft switching of the interleaved Boost circuit. The converter does not only achieve zero current turningon and zero voltage turning-off of the main switch tube, thus greatly reducing the energy loss caused by the reverse-recovery current of the diode, it also realizes zero voltage switching of the auxiliary switching tube and reduces additional loss. On the basis of the principle of emulating, an experimental prototype is designed and made. Experimental results give the waveform of the switching tube and verify realization of the function of soft switching.
出处
《电气自动化》
2016年第4期19-20,53,共3页
Electrical Automation
