Twin coil

Details Twin coil Twin coil

1989-07-12

1990-11-27

Kozma, Thomas J.

Inductor devices

Three or more windings

Noninductively related windings

336180, 336181, 336198, H01F 2730, H01F 2734

Patent

active

049739301

ABSTRACT:
A coil arrangement comprising two coils on a single coil former, termed a twin coil, is characterized in that the two coils (W1, W2 and, respectively, W3A), with any respective individual magnetic core (10 or, respectively, 9) required, are mounted with a substantial distance from each other on the coil former (1) and in that the respective residual coupling of the coils (W1, W2 and W3A) is eliminated by an oppositely wound or connected compensation winding (W3B). The compensating winding (8) is located in the one winding compartment (3) and has current from the coil in the other winding chamber (4) flowing through it. As a result the twin coil in accordance with the invention leads to some advantages over known twin coils in which the coupling between the two coils is nearly 100%.

REFERENCES:
patent: 1775880 (1930-09-01), Whitlock
patent: 2555853 (1951-06-01), Irwin
patent: 3376533 (1968-04-01), Chass
patent: 3445928 (1969-05-01), Beynon
patent: 3458844 (1969-07-01), Hildebrandt
patent: 4339739 (1982-07-01), Dron
patent: 4473811 (1984-09-01), Schauble
patent: 4680566 (1987-07-01), Goseberg et al.

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