Inductive device having a core of an amorphous material

Details Inductive device having a core of an amorphous material Inductive device having a core of an amorphous material

1987-09-03

1988-12-27

Kozma, Thomas J.

Inductor devices

With closed core interrupted by an air gap

29609, 336179, 336211, 336213, 336219, H01F 1706, H01F 1726, H01F 4102

Patent

active

047943602

ABSTRACT:
An inductive device comprising a ferromagnetic core which has two approximately U-shaped core halves (9, 11) connected together with their limbs (9', 11'; 9", 11") facing each other so that they enclose a core window (17). Each core half (9, 11) is constructed substantially from a packet of mutually parallel strips of an amorphous ferromagnetic material. Filling members (21', 21") consisting of a solid non-ferromagnetic material are placed between the free ends of each pair of facing limbs (9', 11'; 9", 11"), and in the space (23', 23") between the ends the filling members extend from the core window (17) in the outward direction over at most half of the width of the core limbs. A decrease of the magnetic permeability of the core material as a result of decreasing temperature is compensated by a decrease of the width of the air gaps (23', 23") between the free ends of the limbs (9', 11'; 9", 11").

REFERENCES:
patent: 2699532 (1955-01-01), Bussing
patent: 4496925 (1985-01-01), Geschka
patent: 4518942 (1985-05-01), Geschka

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