Self-leakage detection circuit of decoupling capacitor in...

Details Self-leakage detection circuit of decoupling capacitor in... Self-leakage detection circuit of decoupling capacitor in...

2005-01-18

2005-01-18

Zweizig, Jeffrey (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Gating

Signal transmission integrity or spurious noise override

C327S545000

Reexamination Certificate

active

06844771

ABSTRACT:
A new method to control a switchable decoupling capacitor in an integrated circuit device is achieved. The method comprises providing an integrated circuit device comprising a switchable decoupling capacitor. The switchable decoupling capacitor is initialized by a method comprising connecting the switchable decoupling capacitor between a power supply and ground. The state of the switchable decoupling capacitor is stored as enabled. The switchable decoupling capacitor is then controlled during operation of the integrated circuit device by a method comprising monitoring a voltage on a terminal of the switchable decoupling capacitor. The switchable decoupling capacitor is disconnected if the voltage exceeds a threshold level. The state of the switchable decoupling capacitor is stored as disabled if the switchable decoupling capacitor is disconnected.

REFERENCES:
patent: 5506457 (1996-04-01), Krauter et al.
patent: 5770969 (1998-06-01), Walls et al.
patent: 5786975 (1998-07-01), Duncan et al.
patent: 5789964 (1998-08-01), Voldman
patent: 5828259 (1998-10-01), Cases et al.
patent: 6307250 (2001-10-01), Krauter et al.
patent: 20020081832 (2002-06-01), Bernstein et al.

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