Choke coil

Details Choke coil Choke coil

1993-06-22

1996-06-11

Kozma, Thomas J.

Inductor devices

Inductive regulators with no relatively moving parts

With magnetic shunt to increase leakage reactance

336178, 336181, 336212, 336215, H01F 1704, H01F 2726

Patent

active

055259510

ABSTRACT:
Two coils 3a, 3b are wound over adjacent portions of a first magnetic core having two closed magnetic circuits and a second magnetic core. The winding directions of the two coils are set so that the magnetomotive forces generated by both coils may cancel each other in the second magnetic core. The magnetic fluxes flowing in the first magnetic core decrease the higher harmonics of an input current of the power source circuit, while the magnetic fluxes flowing in the second magnetic core 2 decrease the noise between the line and the ground. That is, the choke coil performs the function of choke coil and the function of noise filter at the same time.

REFERENCES:
patent: 1835209 (1931-12-01), Dowling
patent: 2780786 (1957-02-01), Johnson
patent: 2864993 (1958-12-01), Sehober
patent: 2910640 (1959-10-01), Blankonbuehler
patent: 4009460 (1977-02-01), Fukui et al.
patent: 4910482 (1990-03-01), Takagai et al.
patent: 5177460 (1993-01-01), Dhyanehard et al.
patent: 5187428 (1993-02-01), Hutchison et al.

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