Method of fabricating a high-frequency transformer

Details Method of fabricating a high-frequency transformer Method of fabricating a high-frequency transformer

1990-06-04

1992-08-04

Hall, Carl E.

Metal working

Method of mechanical manufacture

Electrical device making

296021, 336200, H01F 4104

Patent

active

051347709

ABSTRACT:
A high-frequency transformer is constructed from a flexible circuit comprising a primary conductive film winding and one or more secondary conductive film windings disposed on a single dielectric membrane. The flexible circuit is folded to form a stack of primary winding layers interleaved with secondary winding layers and then inserted into a mangetic cup core. The flexible circuit is preferably patterned photolithographically.

REFERENCES:
patent: 2943966 (1960-07-01), Leno et al.
patent: 4113550 (1978-09-01), Saiki et al.
patent: 4218283 (1980-08-01), Saiki et al.
"Printed Circuit Coil" Styles, IBM Tech. Dis. Bull. vol. 15, No. 1; Jun. 1972; p. 19.

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