Coil with magnetisable rod core

Details Coil with magnetisable rod core Coil with magnetisable rod core

1985-08-15

1987-07-14

Kozma, Thomas J.

Inductor devices

Winding formed of plural coils

Wound to reduce external magnetic field

336136, 336183, H01F 2728, H01F 2734

Patent

active

046805664

ABSTRACT:
The invention concerns a coil arrangement with three windings arranged coaxially, where the outer coils are connected in series. The inductances of the outer coils are of equal magnitude and their magnetic fields have opposing polarities.
The center winding induces in the series circuit of the outer windings currents which cancel each other out. The outer windings with their stray inductances form a coil which is separated from the center one and can be applied for other purposes.

REFERENCES:
patent: 2182071 (1939-12-01), Crossley
patent: 2196809 (1940-04-01), Hoadley
patent: 2507344 (1950-05-01), Macgeorge
patent: 2564221 (1951-08-01), Hornfeck
patent: 2985854 (1961-05-01), Brosh
patent: 3017589 (1962-01-01), Chass
patent: 3054976 (1962-09-01), Lipshutz
patent: 3089081 (1963-05-01), Brosh
patent: 3113237 (1963-12-01), Schopp et al.
patent: 3197722 (1965-07-01), Chass
patent: 3594671 (1971-07-01), Frenkel
patent: 3594672 (1971-07-01), Frenkel
patent: 4229786 (1980-10-01), Mitani et al.

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