Method of making a noise filter

Details Method of making a noise filter Method of making a noise filter

1988-09-06

1989-10-03

Hall, Carl E.

Metal working

Electric condenser making

Solid dielectric type

333184, 361306, H01G 432

Patent

active

048707295

ABSTRACT:
A distributed constant type noise filter and method of making same is provided. The filter includes a first foil conductor disposed to conduct electrical current with first and second lead wires connected near each end thereof, a second foil conductor disposed to be connected to ground potential having a third lead wire connected near one end thereof, and a plurality of dielectric sheets disposed between said first and second foil conductors. This sandwich is wound generally into a tubular form with said first and third lead wires being close to each other and shifted by approximately 1/4 to 3/4 of a turn. The second lead wire is arranged substantially in-line with said first and third lead wires after the tubular wound filter is compressed into substantially an elliptical shape. Alternately, the sandwich is wound generally into a tubular form with said third lead wire being close to said first lead wire but separated therefrom by substantially 2.5% of the distance between said first and second lead wires.

REFERENCES:
patent: 2260296 (1941-10-01), Christopher et al.
patent: 2884605 (1959-04-01), Dubilier
patent: 4563658 (1986-01-01), Ikeda

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