Method and apparatus for reducing disturbances on an integrated

Details Method and apparatus for reducing disturbances on an integrated Method and apparatus for reducing disturbances on an integrated

1996-11-18

1998-10-27

Callahan, Timothy P.

Miscellaneous active electrical nonlinear devices, circuits, and

Gating

Accelerating switching

327377, 327389, 327390, 307129, H01H 8320

Patent

active

058282599

ABSTRACT:
A decoupling capacitor for an integrated circuit is operatively coupled to a supply and to control circuitry for isolating the capacitor. The control circuitry automatically isolates the capacitor in response to a current through the capacitor exceeding a certain threshold, but tends to restore the capacitor to operation if the current is merely caused by momentary conditions, rather than substantial failure of the capacitor. The control circuitry includes a first control device for automatically switching to an off state to isolate the capacitor in response to a voltage produced by the current exceeding a certain threshold. A discharging device tends to discharge the voltage and automatically turn on the first device when the current is caused by momentary conditions. The discharging device may include a control device responsive to an external control signal for switching the first control device on and off.

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