Amorphous metal ballasts and reactors

Details Amorphous metal ballasts and reactors Amorphous metal ballasts and reactors

1978-12-06

1981-09-08

Kozma, Thomas J.

Inductor devices

Inductive regulators with no relatively moving parts

With magnetic shunt to increase leakage reactance

336 83, 336165, 336178, 336211, H01F 1706, H01F 7108, H01F 7724

Patent

active

042887739

ABSTRACT:
A lamp ballast has a pair of adjacent gapped "O" magnetic cores made of nested, almost complete loops of amorphous metal strip with the gaps in the loops shaped and arranged under the secondary coil to simulate any type of restricted cross section for shaping the lamp current. A long slender reactor has a similar configuration in which the gaps are staggered; a different embodiment has a long central core of compressed amorphous metal flake and a helical overwrap of ribbon. An alloy of iron, boron, and silicon with a high B.sub.r /B.sub.s ratio is preferred for these inductive devices.

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patent: 3708744 (1973-01-01), Stephens et al.
patent: 4036638 (1977-07-01), Ray et al.
patent: 4116728 (1978-09-01), Becker et al.
patent: 4197146 (1980-04-01), Frischmann

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