Transformer

Details Transformer Transformer

2005-08-30

2005-08-30

Mai, Anh (Department: 2832)

Inductor devices

Coil or coil turn supports or spacers

Coil on a preformed support or mount

C336S198000, C336S212000

Reexamination Certificate

active

06937129

ABSTRACT:
A transformer. The transformer includes an iron core, a first bobbin, a second bobbin, a primary coil and a secondary coil. The first bobbin surrounds the iron core, and the second bobbin surrounds the first bobbin. The secondary coil is wound on the second bobbin, and the primary coil comprises a first coil section and a second coil section wound on the first bobbin, wherein the coil winding density of the first coil section exceeds the second coil section.

REFERENCES:
patent: 3947749 (1976-03-01), Kimura et al.
patent: 4307334 (1981-12-01), Peil et al.
patent: 6580264 (2003-06-01), Nekado
patent: 2005/0073385 (2005-04-01), Wu et al.
patent: 359189613 (1984-10-01), None
patent: 200277360 (1999-03-01), None
patent: 2002 25835 (2002-01-01), None

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