Low-profile planar transformer

Details Low-profile planar transformer Low-profile planar transformer

2007-12-17

2008-08-19

Nguyen, Tuyen T. (Department: 2832)

Inductor devices

Coil or coil turn supports or spacers

Printed circuit-type coil

Reexamination Certificate

active

07414510

ABSTRACT:
A low-profile planar transformer in one embodiment includes a rectangular frame including top and bottom recesses, a first opening through the top and the bottom, a transverse slot open to the other side, and a flange on the other side; a sheet primary winding including a second opening through its top and bottom, the primary winding being adapted to insert into the slot with the other side thereof exposed and the second opening aligned with the first opening; a rectangular secondary winding adapted to put on the recesses; two insulators of U-shaped adapted to clamp front and rear ends of the secondary winding; a first core of E shape; and a second core of sheet shape adapted to couple to the first core by inserting the central ridge of the first core through the first and the second openings with the frame, the windings, and the insulators disposed therebetween.

REFERENCES:
patent: 5010314 (1991-04-01), Estrov
patent: 6636140 (2003-10-01), Fujiyoshi et al.
patent: 7091817 (2006-08-01), Peck et al.

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