Device for EMC filtering on a printed circuit
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United States of America Patent
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Apr 18, 2017
Grant Date -
Sep 18, 2014
app pub date -
Oct 30, 2012
filing date -
Nov 4, 2011
priority date (Note) -
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Abstract
An EMC filtering device comprises a printed circuit comprising at least two parallel layers of a high-permittivity material, which are positioned between two layers of an insulating material that are parallel to one another and to the high-permittivity material layers. A core made of a magnetic material comprises three cylindrical arms passing perpendicularly through the high-permittivity and insulating material layers. At least two windings winding around the first arm of the magnetic material core, the windings and the first arm forming a first coil. At least two windings winding around the second arm of the magnetic material core, the windings and the second arm forming a second coil. The two coils being coupled coils.
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