Double-D based pad magnetics for reduced emissions in flush mounted and buried wireless power transfer applications
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United States of America Patent
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Sep 3, 2019
Grant Date -
Dec 21, 2017
app pub date -
Jun 15, 2016
filing date -
Jun 15, 2016
priority date (Note) -
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Abstract
An apparatus for wirelessly transferring charging power is provided. The apparatus comprises a ferrite structure. The apparatus comprises a first coil comprising a first conductor wound in a first layer at an outer side of the first coil and wound in a first plurality of stacked layers on an inner side of the first coil. At least one layer of the first plurality of stacked layers on the inner side of the first coil is recessed into the ferrite structure. The apparatus comprises a second coil comprising a second conductor wound in a second layer at an outer side of the second coil and wound in a second plurality of stacked layers on an inner side of the second coil. At least one layer of the second plurality of stacked layers on the inner side of the second coil recessed into the ferrite structure.
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