Winding structure of inductor used in power factor...

Inductor devices – Coil or coil turn supports or spacers – Flexible filament – strip or sheet insulation

Reexamination Certificate

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C336S150000, C336S192000

Reexamination Certificate

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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.

REFERENCES:
patent: 3149296 (1964-09-01), Cox
patent: 3243750 (1966-03-01), Collins
patent: 3675176 (1972-07-01), Brown
patent: 3914680 (1975-10-01), Hesler et al.
patent: 4002999 (1977-01-01), Hesler et al.
patent: RE33345 (1990-09-01), Sylvester et al.
patent: 6492893 (2002-12-01), De Graaf

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