公开(公告)号：US5636114A

公开(公告)日：1997-06-03

申请号：US565553

申请日：1995-11-30

申请人： Pradeep M. Bhagwat ,  Atluri R. Prasad ,  Chadd D. Justo

发明人： Pradeep M. Bhagwat ,  Atluri R. Prasad ,  Chadd D. Justo

IPC分类号： H02M1/34 ,  H02M1/44 ,  H02M3/155 ,  H02M3/335 ,  H03K17/00 ,  H03K17/0814 ,  H02M7/06

CPC分类号： H02M1/44 ,  H02M1/34 ,  H02M3/155 ,  H02M3/335 ,  H03K17/08142 ,  H02M2001/346 ,  H03K2217/0036 ,  Y02B70/1491

摘要： A switching power converter employing a novel lossless zero-voltage-switching passive snubber network having a power range of up to 5 KW is presented. The passive snubber network improves efficiency, power density, and transient performance, reduces switching losses and EMI, and permits fixed frequency operation of the switching power converter. The passive snubber network also reduces and/or eliminates large peak currents and reverse recovery current spikes normally seen in conventional switching power converters. The proposed passive snubber network may be used in various switching power converter topologies such as boost, buck, balanced, and flyback power converters.

摘要翻译： 提出了采用功率范围高达5KW的新型无损零电压切换无源缓冲网络的开关电源转换器。 无源缓冲网络提高了效率，功率密度和瞬态性能，降低了开关损耗和EMI，并允许开关电源转换器的固定频率运行。 无源缓冲网络还减少和/或消除常规开关功率转换器中通常看到的大峰值电流和反向恢复电流尖峰。 所提出的无源缓冲网络可以用于各种开关功率转换器拓扑，例如升压，降压，平衡和反激式功率转换器。