Inductor devices – Coil or coil turn supports or spacers – Flexible filament – strip or sheet insulation
Reexamination Certificate
2006-09-26
2006-09-26
Nguyen, Tuyen T. (Department: 2832)
Inductor devices
Coil or coil turn supports or spacers
Flexible filament, strip or sheet insulation
C336S150000, C336S192000
Reexamination Certificate
active
07113068
ABSTRACT:
A winding structure of an inductor used in a power factor correction circuit is provided. The winding structure includes a ring-shaped core with a gap, a first coil and a second coil wound around the core. The negative end of the first coil and the positive end of the second coil is coupled to form a central tap.
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patent: RE33345 (1990-09-01), Sylvester et al.
patent: 6492893 (2002-12-01), De Graaf
Myers Dawes Andras & Sherman LLP
Nguyen Tuyen T.
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