公开(公告)号：US06661249B2

公开(公告)日：2003-12-09

申请号：US10060985

申请日：2002-01-30

申请人： Robert Oyrer

发明人： Robert Oyrer

IPC分类号： G01R326

CPC分类号： G05F3/262

摘要： A circuit configuration includes a load transistor having a control terminal, a first load path terminal connected to a first supply potential, and a second load path terminal connected a load. A load current flows between the first load path terminal and the second load path terminal. The circuit configuration further includes a current measuring configuration connected to the load transistor, the current measuring configuration having an output for providing a measuring current between the output of the current measuring configuration and a second supply potential. The current measuring configuration provides the measuring current such that the measuring current and the load current have opposite signs and such that the absolute value of the measuring current is proportional to the absolute value of the load current.

公开(公告)号：US07158359B2

公开(公告)日：2007-01-02

申请号：US10252322

申请日：2002-09-23

申请人： Martin Bertele ,  Robert Oyrer ,  Rainald Sander

发明人： Martin Bertele ,  Robert Oyrer ,  Rainald Sander

IPC分类号： H02H3/08

CPC分类号： H03K17/0822 ,  H03K17/063

摘要： A circuit configuration has a first semiconductor switch and a first protection circuit. The protection circuit has a second semiconductor switch whose load path is connected between a control terminal and a load path terminal of the first semiconductor switch. The second semiconductor switch is switched on by a comparator circuit, in each case for a predefined time period, in dependence on a comparison between a load path voltage and a reference voltage, or between a load path current and a reference current.

摘要翻译： 电路结构具有第一半导体开关和第一保护电路。 保护电路具有第二半导体开关，其负载路径连接在第一半导体开关的控制端子和负载路径端子之间。 根据负载路径电压和参考电压之间的比较，或负载路径电流与参考电流之间的比较，第二半导体开关由比较器电路在每种情况下接通预定的时间段。