Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – With particular coupling or decoupling
Patent
1995-08-22
1998-06-23
Callahan, Timothy P.
Miscellaneous active electrical nonlinear devices, circuits, and
Specific identifiable device, circuit, or system
With particular coupling or decoupling
307 98, 307 99, 307129, 324537, 324548, 327389, 3613062, H03K 1716
Patent
active
057709696
ABSTRACT:
A decoupling capacitor and protection circuit is provided that will assist the power supply network in stabilizing the voltage near circuits that demand short rapid transitions in electrical current. The protection circuit also significantly reduces the amount of electrical current drawn by defective large area decoupling capacitors. An inverter stage controls a switching circuit connected in series with a decoupling capacitor. A feedback circuit is provided from the output of the capacitor to the switching circuit. If the capacitor goes bad, then a voltage is present on the feedback circuit and the switching circuit ensures that the output of the failed capacitor is presented with an open circuit so that the short circuit current flow through the capacitor is eliminated. In this manner, the integrity of the other circuits located near the failed capacitor will operate appropriately.
REFERENCES:
patent: 3621347 (1971-11-01), Van Nielen
patent: 3657602 (1972-04-01), Boehm et al.
patent: 3772097 (1973-11-01), Davis
patent: 4427457 (1984-01-01), Carlson et al.
patent: 4825106 (1989-04-01), Tipon et al.
patent: 4894746 (1990-01-01), Mori et al.
patent: 5067005 (1991-11-01), Michii et al.
patent: 5101314 (1992-03-01), Yamaguchi
patent: 5148391 (1992-09-01), Zagar
patent: 5153450 (1992-10-01), Ruetz
patent: 5194765 (1993-03-01), Dunlop et al.
patent: 5212402 (1993-05-01), Higgins, III
patent: 5220216 (1993-06-01), Woo
patent: 5394294 (1995-02-01), Mei et al.
patent: 5506457 (1996-04-01), Krauter et al.
Sedra & Smith "Microelectronic Circuits", Saunders College Publishing, Philadelphia, 1991, p A-4.
Krauter Byron Lee
Schuster Stanley Everett
Walls Lloyd Andre
Callahan Timothy P.
International Business Machines - Corporation
McBurney Mark E.
Zweizig Jeffrey
LandOfFree
Controllable decoupling capacitor does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Controllable decoupling capacitor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Controllable decoupling capacitor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1397264