Iron-free transformer

Details Iron-free transformer Iron-free transformer

1993-06-01

1994-08-16

Picard, Leo P.

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

Superconductive type

335299, 336 73, 336195, H01F 100, H01F 500, H01F 2728

Patent

active

053390610

ABSTRACT:
An iron-free transformer in which electrical energy is transferred from a primary winding to a secondary winding without any electrical connection or inductive coupling therebetween. The transformer includes an iron-free conductive closed loop having input and output sections. Coiled about the input section to form the primary winding is a solenoidal flux tube whose ends are the input terminals of the transformer. Coiled about the output section is a solenoidal flux tube whose ends are the output terminals of the transformer. When the input terminals are connected to an alternating current source, the lines of flux in the electromagnetic field created by the primary flux tube winding do not intercept the secondary flux tube winding, but induce alternating current in the input section which is continuously circulated in the loop and flows through the output section thereof. The alternating current flowing through the output section induces an electromotive force in the secondary flux tube winding, causing an alternating current to flow in a load connected to the output terminals.

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"Pulse Transformer", IBM Technical Disclosure Bulletin, C. T. Lecher, vol. 2, No. 4, Dec. 1959.

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