AC line filter

Details AC line filter AC line filter

1988-09-20

1990-03-20

Laroche, Eugene R.

Wave transmission lines and networks

Coupling networks

Frequency domain filters utilizing only lumped parameters

333 12, 333177, 333185, 336212, 336165, 336184, H03H 709

Patent

active

049104829

ABSTRACT:
An AC line filter in which a pair of windings are wound in an opposite dition to each other and are provided at opposing locations on a main core that forms a closed magnetic path. At least one auxiliary core which forms a shorter magnetic path than the main core is positioned adjacent the main core. The auxiliary core has at low frequency region an effective permeability higher than that of the main core. A portion of each of the pair of windings being provided in such a way that the portion is a concentrated winding which surrounds both the main core and the auxiliary core simultaneously.

REFERENCES:
patent: 2771587 (1956-11-01), Henderson
patent: 4172244 (1979-10-01), Zeis
patent: 4177418 (1979-12-01), Brueckner et al.
patent: 4725739 (1988-02-01), McCartney et al.
patent: 4761623 (1988-08-01), Schneider
patent: 4768002 (1988-08-01), Cronin
patent: 4835497 (1989-05-01), Takagi et al.

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