Current controlled variable inductor

Details Current controlled variable inductor Current controlled variable inductor

1994-05-24

1995-06-20

Picard, Leo P.

Inductor devices

With closed core interrupted by an air gap

336170, 336233, 336155, H01F 1702, H01F 314

Patent

active

054264090

ABSTRACT:
A current controlled variable inductor comprises a magnetically saturable E" core having outer limbs each joined to a center limb by connecting limbs. A staggered series of flux bridges and air gaps are formed into alternating sides of the outer limbs. A bias winding on the center limb magnetically couples a direct current into the core to vary the inductance of a signal winding on the outer limbs. A secondary winding magnetically couples an output voltage from the core for application of the inductor as a tunable transformer.

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patent: 4620144 (1986-10-01), Bolduc
patent: 4766365 (1988-08-01), Bolduc et al.
patent: 4874990 (1989-10-01), Dobnick

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