Choke coil for eliminating common mode noise and normal mode noi

Details Choke coil for eliminating common mode noise and normal mode noi Choke coil for eliminating common mode noise and normal mode noi

1996-02-02

1997-05-13

Kozma, Thomas J.

Inductor devices

With supporting and/or spacing means between coil and core

Preformed insulation between coil and core

336212, 336215, H01F 2726, H01F 2730

Patent

active

056296614

ABSTRACT:
A choke coil having a sufficient noise eliminating effect against common mode and normal mode noises. The choke coil has a bobbin, a pair of windings wound around the bobbin, and magnetic cores inserted in a rectilinear body portion of the bobbin. The bobbin is constituted by a main body and a cap each of which incorporates a magnetic core. The upper half of those magnetic cores forms a closed magnetic circuit that extends around one of the windings while the lower half forms a closed magnetic circuit that extends around the winding.

REFERENCES:
patent: 1771297 (1930-07-01), Howes
patent: 4866409 (1989-09-01), Umezaki

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