Inductor devices – Core forms casing
Patent
1994-10-06
1996-04-09
Kozma, Thomas J.
Inductor devices
Core forms casing
336212, 336215, 336233, H01F 1706, H01F 2730
Patent
active
055065597
ABSTRACT:
A common mode choke coil has a couple of coils, a magnetic frame in which the coils are encased, the magnetic frame forming closed magnetic circuits around the respective coils, and a magnetic core which pierces through the magnetic frame. The frame is made of an insulating magnetic material which has a relative magnetic permeability of more than one, preferably two through some scores. For example, a mixture of ferrite powder of Ni--Zn and resin is used as the material of the frame. The core is made of a material which has a relative magnetic permeability of preferably several thousands, such as ferrite and amorphous.
REFERENCES:
patent: 2015674 (1935-10-01), Hayes
Kozma Thomas J.
Murata Manufacturing Co. Ltd.
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