Inductor devices – With supporting and/or spacing means between coil and core – Preformed insulation between coil and core
Reexamination Certificate
2006-08-23
2008-10-21
Nguyen, Tuyen T. (Department: 2832)
Inductor devices
With supporting and/or spacing means between coil and core
Preformed insulation between coil and core
Reexamination Certificate
active
07439838
ABSTRACT:
Transformers are provided. A transformer comprises a ferromagnetic core unit; a bobbin coupled with the ferromagnetic core unit; at least a winding unit as a primary winding and at least a plate as a secondary winding. Also, some of the winding units can act as a secondary winding. At least a winding unit and at least a plate are alternatively stacked in a staggered manner. A conductive wire is wound around the winding unit.
REFERENCES:
patent: 5175525 (1992-12-01), Smith
patent: 5534839 (1996-07-01), Mackin et al.
patent: 5559487 (1996-09-01), Butcher et al.
patent: 6420953 (2002-07-01), Dadafshar
patent: 6522233 (2003-02-01), Kyoso et al.
Chen Yu-Chan
Cheng I-Chi
Cheng Kai-Yuan
Chou Heng-Cheng
Feng Wen-Pin
Birch & Stewart Kolasch & Birch, LLP
Delta Electronics , Inc.
Nguyen Tuyen T.
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