Electricity: electrical systems and devices – Safety and protection of systems and devices – With specific voltage responsive fault sensor
Reexamination Certificate
2008-05-06
2008-05-06
Sherry, Michael (Department: 2836)
Electricity: electrical systems and devices
Safety and protection of systems and devices
With specific voltage responsive fault sensor
C361S023000
Reexamination Certificate
active
07369383
ABSTRACT:
A protective circuit (1), particularly for overvoltage-protecting an electronic motor control unit, comprises a signal connection receiving and/or emitting an electrical signal, a switching element (4) which activates or deactivates a protective interrupter and is controllable via a control input, and a control circuit (5), the input side of which is connected to the signal connection while the output side thereof is connected to the control input of the switching element (4) in order to activate or deactivate the protective interrupter according to the electrical state at the signal connection. The control circuit (5) has a hysteresis characteristic regarding the electrical state at the signal connection.
REFERENCES:
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patent: 5513058 (1996-04-01), Hollenbeck
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patent: 112 561 (1974-08-01), None
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Allmeier Franz
Karrer Volker
Reindl Thomas
Baker & Botts L.L.P.
Nguyen Danny
Sherry Michael
Siemens Aktiengesellschaft
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