Electricity: electrical systems and devices – Safety and protection of systems and devices – With specific voltage responsive fault sensor
Reexamination Certificate
2006-02-28
2008-08-12
Sherry, Michael (Department: 2836)
Electricity: electrical systems and devices
Safety and protection of systems and devices
With specific voltage responsive fault sensor
C361S091600
Reexamination Certificate
active
07411770
ABSTRACT:
A circuit arrangement includes a first semiconductor switch and at least one second semiconductor switch, each of them having a control terminal and a first and second load terminal, and with an overvoltage protection arrangement for the at least two semiconductor switches. The overvoltage protection arrangement comprises a voltage limiting unit with a first and a second terminal, whose first terminal is connected to a central circuit node, whose second terminal is connected to a terminal for a reference potential, and which is configured so that it conducts current when a threshold voltage is applied between the first and second load terminals. The central circuit node is coupled to the first load terminals of the semiconductor switches. The overvoltage protection arrangement further comprises a first actuating circuit for the first semiconductor switch and a second actuating circuit for the at least one second semiconductor switch.
REFERENCES:
patent: 2005/0088216 (2005-04-01), Arndt et al.
patent: 422 54 08 (1994-04-01), None
“HITFET® BTS 3410 G.” Infineon Technologies AG: Munich, 2004 <www.infineon.com/hitfet> (11 Pages).
Logiudice Andrea
Pastorina Salvatore Giovanni
Scenini Andrea
Wotruba Bernhard
Infineon - Technologies AG
Maginot Moore & Beck
Nguyen Danny
Sherry Michael
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