公开(公告)号：US06181541B2

公开(公告)日：2001-01-30

申请号：US09177795

申请日：1998-10-22

申请人： Shukri Souri ,  Hugh Duffy ,  Adrian I. Cogan ,  Mark Munch ,  Nick Nickols

发明人： Shukri Souri ,  Hugh Duffy ,  Adrian I. Cogan ,  Mark Munch ,  Nick Nickols

IPC分类号： H02H504

CPC分类号： H02H3/025 ,  H02H5/042 ,  H02H9/026 ,  H03K17/0822 ,  H03K2017/0806

摘要： A circuit protection device for protecting an electrical load includes a three-terminal switch element such as a bipolar, or junction or metal-oxide-semiconductor field effect, transistor and a positive temperature compensation (PTC) resistor. In several embodiments the PTC resistor is in series with the current-carrying electrodes of the transistor. In other embodiments the PTC resistor, or a second PTC resistor, is connected to a control element of the transistor. Both DC and AC load-protection circuits are described.

摘要翻译： 用于保护电负载的电路保护装置包括诸如双极或结或金属氧化物半导体场效应的三端开关元件，晶体管和正温度补偿（PTC）电阻器。 在几个实施例中，PTC电阻器与晶体管的载流电极串联。 在其他实施例中，PTC电阻器或第二PTC电阻器连接到晶体管的控制元件。 描述直流和交流负载保护电路。