Bidirectional power line filter

Details Bidirectional power line filter Bidirectional power line filter

1980-08-25

1982-07-27

Nussbaum, Marvin L.

Wave transmission lines and networks

Coupling networks

Frequency domain filters utilizing only lumped parameters

177185, H03H 701, H03H 709

Patent

active

043420133

ABSTRACT:
A bidirectional power line filter provides distributive capacitance to accomplish filtering is electrically connected between the power lines and the ground wire in a power distribution system. In addition to lumped parameter or fixed value capacitors, a distributive capacitance is provided by use of a printed circuit board upon which the electrical components forming the filter are mounted. A specially formed dual inductor is wound as a common-core inductor using two toroidal cores preferably formed of ferrite each having a different permeability verus frequency curve. The inventive filter is intended for use in a three-phase Y-connected power distribution system, as well as in a conventional single-phase system. An additional multiple outlet system may be added to the bidirectional filter and it is also formed having distributive capacitance by employing a length of printed circuit board material to which the plurality of outlets are connected.

REFERENCES:
patent: 3683271 (1972-08-01), Kobayashi
News Release--"Pilgrim Introduces New Bi-Directional Filter for O.E.M. Use", Pilgrim Electric Company, Plainview, N.Y., dated Apr. 15, 1980, 2 pages.
Curran--"Power Line Filter", IBM Technical Disclosure Bulletin, vol. 7, No. 7, Dec. 1964, p. 569.

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