SYSTEM AND METHOD FOR REDUCING LEAKAGE FLUX IN WIRELESS CHARGING SYSTEMS
First Claim
1. An apparatus for reducing magnetic flux of a wireless charging field in a wireless power charging system, comprising:
- a wireless power transmitter configured to generate the wireless charging field; and
a collector comprising a ferromagnetic material and configured to reduce the magnetic flux,the collector positioned between a first distance and a second distance at a third distance from the transmitter, andthe collector configured to reduce the magnetic flux at a first level at the first distance, at a second level at the second distance, and at a third level at the third distance, the third level greater than each of the first and second levels.
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Accused Products
Abstract
One innovation includes a system for reducing magnetic flux of a wireless charging field in a wireless power charging system. The system comprises a wireless power transmitter configured to generate the wireless charging field, the field comprising the magnetic flux and a collector comprising a ferromagnetic material and configured to reduce the magnetic flux. The collector is positioned between a first distance and a second distance at a third distance from the transmitter. The collector is configured to reduce the magnetic flux at a first level at the first distance, at a second level at the second distance, and at a third level at the third distance, the third level greater than each of the first and second levels.
30 Citations
30 Claims
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1. An apparatus for reducing magnetic flux of a wireless charging field in a wireless power charging system, comprising:
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a wireless power transmitter configured to generate the wireless charging field; and a collector comprising a ferromagnetic material and configured to reduce the magnetic flux, the collector positioned between a first distance and a second distance at a third distance from the transmitter, and the collector configured to reduce the magnetic flux at a first level at the first distance, at a second level at the second distance, and at a third level at the third distance, the third level greater than each of the first and second levels. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method of reducing magnetic flux of a wireless charging field in a wireless power charging system, comprising:
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generating, via a wireless power transmitter, the wireless charging field; and reducing the magnetic flux via a collector comprising a ferromagnetic material, the collector positioned between a first distance and a second distance at a third distance from the transmitter, magnetic flux reductions of a first level at the first distance and of a second level at the second distance being less than or equal to a magnetic flux reduction at a third level at the third distance. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. An apparatus for reducing magnetic flux of a wireless charging field in a wireless power charging system, comprising:
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means for generating the wireless charging field; and means for reducing the magnetic flux, the reducing means positioned between a first distance and a second distance at a third distance from the generating means, and the reducing means configured to reduce the magnetic flux at a first level at the first distance, at a second level at the second distance, and at a third level at the third distance, the third level greater than each of the first and second levels. - View Dependent Claims (28, 29, 30)
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Specification