Annular core for a choke, in particular for radio interference s

Details Annular core for a choke, in particular for radio interference s Annular core for a choke, in particular for radio interference s

1997-03-07

1998-05-12

Gellner, Michael L.

Inductor devices

Core

336212, 336213, 336 83, H01F 2702, H01F 2724

Patent

active

057512078

ABSTRACT:
An annular core for a choke, in particular for radio interference suppression of semiconductor circuits by the phase control method, includes two different soft magnetic materials. One material is crystalline and is formed as an annular-core-shaped trough which receives the other material that is in the form of amorphous and/or nanocrystalline particles. The annular core which is thus formed can then be surrounded by a coil, that is connected in series with the consumer by phase control.

REFERENCES:
patent: 1809042 (1931-06-01), Kelsall
patent: 2467101 (1949-04-01), Walters
patent: 3781740 (1973-12-01), Kirmis et al.
patent: 4197146 (1980-04-01), Frischmann
patent: 4272749 (1981-06-01), Tuji
patent: 4325096 (1982-04-01), Sunohara et al.
patent: 4789849 (1988-12-01), Ballard et al.
Patent Abstracts of Japan No. 6 105 1808 (Sadao et al.,) dated Mar. 14, 1986.

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