Noise filter comprising a soft magnetic alloy ribbon core

Details Noise filter comprising a soft magnetic alloy ribbon core Noise filter comprising a soft magnetic alloy ribbon core

1994-07-29

1997-04-08

Lee, Benny T.

Wave transmission lines and networks

Coupling networks

Frequency domain filters utilizing only lumped parameters

336 90, 336100, 420121, 148306, H03H 709, H01F 2702

Patent

active

056191740

ABSTRACT:
A noise filter includes an annular magnetic core made of a soft magnetic alloy ribbon mainly made of Fe and containing B and at least one element selected from a group consisting of Ti, Zr, Hf, Nb, Ta, Mo and W, at least 50% of the soft magnetic alloy structure being composed of body-centered cubic structured fine grains having an average grain size of 30 nm or below, a casing for accommodating the magnetic core and having an insulating plate, a pair of coils separated from each other by the insulating plate, and an electronic circuit for connecting a core element made up of the magnetic core, the casing and the coils.

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