Electricity: electrical systems and devices – Safety and protection of systems and devices – Circuit automatically reconnected only after the fault is...
Reexamination Certificate
2006-08-04
2010-02-02
Jackson, Stephen W (Department: 2836)
Electricity: electrical systems and devices
Safety and protection of systems and devices
Circuit automatically reconnected only after the fault is...
Reexamination Certificate
active
07656628
ABSTRACT:
Apparatus is provided to limit the current drawn from a power supply output connected to furnish power to a docking station or electronic device, when a fault connects the output to ground or other docking connection. The power supply is disconnected when such fault is present during power-up. In one embodiment, the apparatus controllably limits current delivered to a docking station and a mobile device connected thereto. The apparatus includes a switch device located along a current path extending between the power supply and docking station, to regulate current flow. A current limiting entity operates the switch device to prevent current flow, when the fault affects the circuit, and current through the path exceeds a pre-specified threshold level. The pre-specified current threshold level can be less than the current level provided to the docking station and mobile device without said fault. A disabling component de-activates the current limiting entity, when current is flowing to the charging station but the current is unaffected by the fault.
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Cato Robert Thomas
Crockett Timothy Wayne
Brooks Angela
International Business Machines - Corporation
Jackson Stephen W
McBurney Mark E.
Yee & Associates P.C.
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