AC line filter

Details AC line filter AC line filter

1988-09-20

1989-05-30

Nussbaum, Marvin L.

Wave transmission lines and networks

Coupling networks

Frequency domain filters utilizing only lumped parameters

333 12, 333181, 333185, 336211, 336215, H03H 709

Patent

active

048354970

ABSTRACT:
An ac line filter comprises two main cores, at least one auxiliary core disposed between the two main cores, and a pair of windings provided on the main and the auxiliary core. The main cores form shell type closed magnetic paths and enclose the auxiliary core, which forms a closed magnetic path, when the two main cores are placed one over the other. Each of the windings is wound in a concentrated manner to surround both the inner core of the main core and the auxiliary core at a location where the auxiliary core is positioned beside the main core, and is wound in a spaced manner around the inner core of the main core at a location where the auxiliary core is not positioned adjacent the main core. Each winding is divided at the center thereof and the divided ends of one winding are cross-connected with the similar divided ends of the other winding.

REFERENCES:
patent: 4378539 (1983-03-01), Swanson
patent: 4779068 (1988-10-01), Sakamoto et al.
"Power Line Wide Band Noise Filter For Customer Equipment" of Kusuo Takagi, NTT Electrical Communication Laboratory; Denshi Joho Tsushin Gakkai 70th Anniversary National Conference (1987).

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