公开(公告)号：US08981819B2

公开(公告)日：2015-03-17

申请号：US13336136

申请日：2011-12-23

申请人： Richard A Dunipace

发明人： Richard A Dunipace

IPC分类号： H03K3/00

CPC分类号： H02M1/08 ,  H02M1/088 ,  H02M3/33523 ,  H03K17/0424

摘要： A switch bias system is provided that includes a bipolar junction transistor (BJT) switch comprising a base, emitter, and collector; an energy storage circuit coupled to the collector of the BJT, the energy storage circuit supplying current flow to the collector of the BJT; a current transformer circuit coupled to the emitter, the current transformer circuit configured to sense current flow through the emitter of the BJT switch; and a proportional bias circuit configured to generate a bias current to the base of the BJT switch, the bias current set to a proportion of the sensed current flow through the emitter of the BJT switch.

摘要翻译： 提供了一种开关偏置系统，其包括包括基极，发射极和集电极的双极结型晶体管（BJT）开关; 耦合到BJT的集电极的能量存储电路，所述能量存储电路向BJT的集电极提供电流; 耦合到所述发射极的电流互感器电路，所述电流互感器电路被配置为感测通过所述BJT开关的发射极的电流; 以及比例偏置电路，其被配置为产生到BJT开关的基极的偏置电流，偏置电流被设置为通过BJT开关的发射极的感测电流的一部分。