Transformer

Details Transformer Transformer

2011-04-26

2011-04-26

Enad, Elvin G (Department: 2832)

Inductor devices

Coil or coil turn supports or spacers

Printed circuit-type coil

C336S058000, C336S232000

Reexamination Certificate

active

07932799

ABSTRACT:
The invention relates to a transformer (12) with a planar primary winding and a planar secondary winding. In order to support the heat dissipation during operation, each winding is integrated on a substrate in at least one dedicated PCB (30, 40). The PCBs (30, 40) are separated from each other by a non-ferromagnetic and electrically insulating material (50). The material: (50) transfers heat better than the substrates. The invention relates equally to an apparatus comprising such a transformer (12).

REFERENCES:
patent: 4100480 (1978-07-01), Lytle et al.
patent: 4520494 (1985-05-01), Arita et al.
patent: 4763093 (1988-08-01), Cirkel et al.
patent: 4873757 (1989-10-01), Williams
patent: 4937729 (1990-06-01), Gadreau et al.
patent: 5225803 (1993-07-01), Negle et al.
patent: 5631815 (1997-05-01), Cross
patent: 5847947 (1998-12-01), Pan et al.
patent: 6211767 (2001-04-01), Jitaru
patent: 2002/0036561 (2002-03-01), Jedlitschka
patent: 2003/0132825 (2003-07-01), Gamou
patent: 0122445 (2001-03-01), None
Conor Quinn et al; “A Review of Planar Magnetic Techniques and Technologies”, Applied Power Electronics Conf. and Exposition, 2001, APEC 2001, 16th Annual IEEE 2001, vol. 2, Mar. 4-8, 2001, pp. 1175-1183.

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