Planar transformer

Inductor devices – With supporting and/or spacing means between coil and core – Preformed insulation between coil and core

Reexamination Certificate

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Reexamination Certificate

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06906609

ABSTRACT:
A transformer having at least one primary winding and one secondary winding. The windings are disposed between walls of a first and second bobbin member. In preferred eombodiments, the creepage distance between the windings can be increased by providing a flange on one of the walls of one of the bobbin members.

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patent: 5726616 (1998-03-01), Bell
patent: 5783982 (1998-07-01), Lecheler
patent: 5996214 (1999-12-01), Bell
patent: 6008712 (1999-12-01), Tokuda et al.
patent: 0 933 789 (1999-08-01), None

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