Electricity: electrical systems and devices – Safety and protection of systems and devices – With specific voltage responsive fault sensor
Reexamination Certificate
2008-04-08
2008-04-08
Deberadinis, Robert L. (Department: 2836)
Electricity: electrical systems and devices
Safety and protection of systems and devices
With specific voltage responsive fault sensor
Reexamination Certificate
active
07355829
ABSTRACT:
In a redundant configuration with multiple power sources connected in parallel to enhance reliability, a power source in which an overvoltage failure occurred has been difficult to identify and unable to be deactivated, which has impeded the improvement of reliability. However, it has become possible to deactivate selectively only the power source in which an overvoltage failure has occurred, by providing a independency-discrimination circuit that identifies the occurrence of the overvoltage failure by use of the state of a parallel operation control circuit, and connecting the independency-discrimination circuit, an overvoltage detection circuit, and a connection circuit.
REFERENCES:
patent: 4618779 (1986-10-01), Wiscombe
patent: 59-127579 (1984-07-01), None
patent: 4-372525 (1992-12-01), None
Maru Naoki
Tomioka Satoshi
Ueguri Motoharu
Yamamura Hideho
Antonelli, Terry Stout & Kraus, LLP.
DeBeradinis Robert L.
Densei-Lambda K.K.
Hitachi , Ltd.
Roman Luis E.
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