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Fused Decoupling Capacitor With Test Electrode

IP.com Disclosure Number: IPCOM000034692D
Original Publication Date: 1989-Apr-01
Included in the Prior Art Database: 2005-Jan-27

Publishing Venue

IBM

Related People

Authors:
Zalesski, A [+details]

Abstract

A test electrode allows the detecting of decoupling capacitors having open fuses soldered in parallel with many other capacitors on a printed circuit board. The fused decoupling capacitor with a test electrode is described in the following. (Image Omitted) The fused decoupling capacitor (Fig. 1) with test electrode consists of capacitors Cl and C2, and a fuse built in an enclosure. One electrode of each capacitor is connected to the fuse. The decoupling capacitor can be commoned with the electrode of the two capacitors. Capacitor Cl is used as a decoupling capacitor. Capacitor C2 is used only for sensing decoupling capacitors with open fuses connected in parallel in large arrays. Capacitance C2 can be much lower than the decoupling capacitance of Cl.