Apparatus for generating differential noise between power and gr

Details Apparatus for generating differential noise between power and gr Apparatus for generating differential noise between power and gr

1997-06-20

1998-08-11

Mis, David

Oscillators

Electrical noise or random wave generator

324537, H03B 2900, H01H 3102

Patent

active

057932590

ABSTRACT:
The present invention provides an apparatus for generating a differential noise between a power and ground planes in a printed wiring board (PWB). The apparatus comprises a power plane, a ground plane, and a signal transmission circuit. A plurality of cuts comprising a first pattern is formed on the power plane. The ground plane also provides a plurality of cuts comprising a second pattern. Both the power plane and the ground plane are disposed in the PWB. A signal transmission circuit transmits a signal current over the ground plane and the power plane. The signal current induces an image return current on both the power plane and the ground plane. The first and second patterns of cuts on the power plane and the ground plane, respectively, disrupt the image return current and cause a differential voltage noise to be generated between the power plane and the ground plane.

REFERENCES:
patent: 5514971 (1996-05-01), Hankui et al.
patent: 5668507 (1997-09-01), Boerstler et al.

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