Transformer

Details Transformer Transformer

2011-07-12

2011-07-12

Mai, Anh T (Department: 2832)

Inductor devices

Coil or coil turn supports or spacers

Printed circuit-type coil

C336S223000, C336S232000

Reexamination Certificate

active

07978041

ABSTRACT:
A printed circuit board transformer comprises at least one primary winding and one secondary winding, each in the form of at least one layer of turns inside or at the surface of a printed circuit board. The transformer is designed for a step-up/down-operation. Each of the two layers (10, 11) has an elongated winding element (12, 13, 13′) substantially following an elongated winding element of the other layer while being in an overlapping relationship therewith as seen perpendicularly to said printed circuit board over substantially the entire extension of said winding elements. A second (11) of the layers belonging to the secondary winding has a fewer number of turns than the first (10) of said layers belonging to said primary winding.

REFERENCES:
patent: 4873757 (1989-10-01), Williams
patent: 5781093 (1998-07-01), Grandmont et al.
patent: 6501364 (2002-12-01), Hui et al.
patent: 6831544 (2004-12-01), Patel et al.
patent: 6888438 (2005-05-01), Hui et al.
patent: 6980074 (2005-12-01), Jitaru
patent: 7046114 (2006-05-01), Sakata
patent: 2001/0020886 (2001-09-01), Matsumoto et al.
patent: 2004/0070481 (2004-04-01), Patel et al.
patent: 2008/0204180 (2008-08-01), Aboumrad et al.
patent: 0935263 (1999-08-01), None
patent: 92/04723 (1992-03-01), None
patent: 2008/152616 (2008-12-01), None
Garcia, O. et al, “A Standard Design Method for High Frequency PCB Transformers,”1995 IEEE, pp. 335-339.

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