Very low leakage inductance, single-laminate transformer

Details Very low leakage inductance, single-laminate transformer Very low leakage inductance, single-laminate transformer

1995-05-30

1996-10-29

Kozma, Thomas J.

Inductor devices

Core forms casing

336183, 336200, 336223, 336232, H01F 2730

Patent

active

055700748

ABSTRACT:
A transformer having a very low, predetermined leakage inductance includes an elongate dielectric laminate having two surfaces. A primary winding having a pattern conformal to the configuration of the laminate is disposed on one surface and extends substantially the length of the laminate. The laminate has at least one secondary winding disposed on its other surface. The laminate is rolled with a dielectric layer about a cylinder, and the primary and secondary windings are patterned such that the primary and secondary windings comprise interleaved winding layers with the dielectric layer disposed between each of the winding layers. The rolled laminate, dielectric layer, and windings are contained within a cylindrical magnetic pot core. The result is a transformer having tightly interleaved primary and secondary windings and, therefore, a very low leakage inductance. In addition, the distance between adjacent primary and secondary turns is fixed by the thickness of the dielectric layer; hence, the leakage inductance is highly predictable.

REFERENCES:
patent: 4755783 (1988-07-01), Fleischer et al.

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