Electricity: electrical systems and devices – Safety and protection of systems and devices – Transient responsive
Patent
1997-09-24
1998-12-22
Gaffin, Jeffrey
Electricity: electrical systems and devices
Safety and protection of systems and devices
Transient responsive
361 56, 326 81, 326 86, H02H 322
Patent
active
058525408
ABSTRACT:
A circuit for protecting internal logic circuits of an integrated circuit (IC) device from a failure of internal voltage supply is disclosed. A protection circuit is connected between the internal power supply and an external power supply. The protection circuit reduces the external power to the internal logic circuits. A pass circuit is connected to the protection circuit and the internal power supply. The pass circuit is configured to reduce the input voltage difference in the protection circuit in the event of a failure of the internal power supply to prevent a failure of the protection circuit. The voltage level of the external power supply is typically higher than the internal supply voltage level, and exposure to the full external voltage level may disable the protection circuit.
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Gaffin Jeffrey
Huynh Kim N.
Intel Corporation
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