Noise isolation system for high-speed circuits

Details Noise isolation system for high-speed circuits Noise isolation system for high-speed circuits

1983-12-29

1986-01-07

Nussbaum, Marvin L.

Wave transmission lines and networks

Coupling networks

Frequency domain filters utilizing only lumped parameters

333 12, 333167, 330199, H03H 701

Patent

active

045636605

ABSTRACT:
A noise isolation circuit is provided that consists of a dual function bypass which confines high-speed switching noise to the component or circuit which generates it and isolates the component or circuit from high-frequency noise transients which may be present on the ground and power supply busses. A local circuit ground is provided which is coupled to the system ground by sufficient impedance to force the dissipation of the noise signal in the local circuit or component generating the noise. The dual function bypass network couples high-frequency noise signals generated in the local component or circuit through a capacitor to the local ground while isolating the component or circuit from noise signals which may be present on the power supply busses or system ground. The network is an effective noise isolating system and is applicable to both high-speed analog and digital circuits.

REFERENCES:
patent: 1953465 (1934-04-01), Chesnut
patent: 3530393 (1970-09-01), Thatch et al.
patent: 3760298 (1973-09-01), Pell

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