Inductor devices – Winding formed of plural coils – Wound to reduce external magnetic field
Reexamination Certificate
2007-10-02
2007-10-02
Mai, Anh (Department: 2832)
Inductor devices
Winding formed of plural coils
Wound to reduce external magnetic field
C336S212000, C336S182000
Reexamination Certificate
active
11634455
ABSTRACT:
An energy transfer element having windings. In one aspect, the energy transfer element includes a first winding wound around a core, the first winding has a first end and a second end. A second winding is wound around the core. The second winding has a first end and a second end. The first winding is capacitively coupled to the second winding to provide a transfer of energy from the first winding to the second winding. A third winding is wound around the core. The third winding has a first end and a second end. The first end of the third winding is electrically coupled to the first end of the second winding. The second end of the third winding is uncoupled such that an influence of an electrostatic field to be produced by the first and second windings relative to the core are to be cancelled by an electrostatic field to be created by the third winding.
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Odell Arthur B.
Park Chan Woong
Blakely , Sokoloff, Taylor & Zafman LLP
Mai Anh
Power Integrations, Inc.
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