Inductor devices – Coil or coil turn supports or spacers – Printed circuit-type coil
Patent
1993-12-29
1995-01-10
Picard, Leo P.
Inductor devices
Coil or coil turn supports or spacers
Printed circuit-type coil
336183, H01F 2728
Patent
active
053811240
ABSTRACT:
A low-profile, conductive film transformer includes a conductive film primary winding and a multi-turn, conductive film secondary winding. The multi-turn secondary winding is configured on a continuous secondary conductive film which is disposed on at least one surface of a secondary dielectric membrane and has at least two portions arranged as mirror images of each other. Each of the portions has a plurality of sections; and each of the sections includes an even number of apertures, each of the apertures corresponding to a separate respective magnetic pole. There are at least two adjacent poles per section along at least one longitudinal pole axis. The conductive film is z-folded to form a stack of winding layers with a single turn per two adjacent layers about each magnetic pole, each layer comprising one section of the winding. Each single turn about each respective adjacent pole along each longitudinal axis is connected in series to form a total number of secondary winding turns corresponding to the number of sections in each portion of the conductive film winding. The multi-turn secondary winding is interleaved with a conductive film primary winding and disposed in a magnetic core. All of the secondary winding terminations are integral with the winding itself and are aligned, allowing for simple connections therebetween as well as to other circuit components.
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Breedlove Jill M.
General Electric Company
Picard Leo P.
Snyder Marvin
Thomas L.
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