Decoupling capacitor fuse system

Details Decoupling capacitor fuse system Decoupling capacitor fuse system

1997-05-09

1999-04-20

Callahan, Tim

Miscellaneous active electrical nonlinear devices, circuits, and

Specific identifiable device, circuit, or system

Fusible link or intentional destruct circuit

326 38, H03K 301, H03K 19003

Patent

active

058960597

ABSTRACT:
An apparatus to remove from operation a decoupling capacitor connected to a power supply providing power to logic circuitry in an integrated circuit. One technique for doing so is to connect a fuse in series with a decoupling capacitor. The present invention amplifies current transmitting through the fuse in a positive feedback manner to force the fuse to blow sooner than would normally occur. Therefore, when the current through the decoupling capacitor is deemed unacceptable, the fuse current is increased until such a time that the fuse opens.

REFERENCES:
patent: 4837520 (1989-06-01), Golke et al.
patent: 5212413 (1993-05-01), Phelan et al.
patent: 5329237 (1994-07-01), Horch
patent: 5345110 (1994-09-01), Renfro et al.
patent: 5394294 (1995-02-01), Mei et al.
patent: 5418487 (1995-05-01), Armstrong, II
patent: 5506457 (1996-04-01), Krauter et al.

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