摘要
介绍了一种采用有源缓冲技术来减小开关损耗和提高功率因数的新型升压校正器,该有源缓冲电路由电感、电容、二极管和一个辅助开关组成。由于升压开关零电流关断,因此该技术十分适合用于绝缘栅双极性晶体管(IGBT)。升压开关及二极管串联的有源缓冲电感减少了二极管反向恢复损耗,此外,辅助开关零电压工作。
A new active snubber technique which improves performance of the high-power-factor Boost converter by reducing switching losses is introduced.The losses are reduced by an active snubber which consists of an inductor,a capacitor, a rectifier, and an auxiliary switch.Since the Boost switch turns off with zero current,this technique is well suited for implementations with insulated gate bipolar transistors（IGBT）.The reverse-recovery related losses of the rectifier are also reduced by the active snubber inductor which is connected in series with the Boost switch and the Boost rectifier.In addition ,the auxiliary switch operates with zero voltage switching.
出处
《电力电子技术》
CSCD
北大核心
2011年第10期29-30,62,共3页
Power Electronics
