SYSTEMS AND METHODS FOR INDUCTION CHARGING WITH A CLOSED MAGNETIC LOOP
First Claim
1. An apparatus for wireless power transmission, comprising:
- a plurality of coplanar coils, each of the plurality of coplanar coils configured to be individually energized and produce a magnetic field; and
a controller configured to reverse polarity of the magnetic field of at least one of the plurality of coplanar coils based on a measure of coupling between coils and to select at least two of the plurality of coplanar coils for wireless power transmission based on the measure of coupling between coils.
1 Assignment
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Accused Products
Abstract
Systems, methods, and computer program products for induction charging with a closed magnetic loop are described herein. In one aspect, an apparatus for wireless power transmission comprises a plurality of coplanar coils, each of the plurality of coplanar coils configured to be individually energized and produce a magnetic field. Further, the controller is configured to reverse polarity of the magnetic field of at least one of the plurality of coplanar coils based on a measure of coupling between coils and to select at least two of the plurality of coplanar coils for wireless power transmission based on the measure of coupling between coils.
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Citations
32 Claims
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1. An apparatus for wireless power transmission, comprising:
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a plurality of coplanar coils, each of the plurality of coplanar coils configured to be individually energized and produce a magnetic field; and a controller configured to reverse polarity of the magnetic field of at least one of the plurality of coplanar coils based on a measure of coupling between coils and to select at least two of the plurality of coplanar coils for wireless power transmission based on the measure of coupling between coils. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for wireless power transmission, comprising:
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energizing a plurality of coplanar coils so that each of the plurality of coplanar coils produces a magnetic field; reversing polarity of the magnetic field of at least one of the plurality of coplanar coils based on a measure of coupling between coils; and selecting at least two of the plurality of coplanar coils for wireless power transmission based on the measure of coupling between coils. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. An apparatus for wireless power transmission, comprising:
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means for energizing a plurality of coplanar coils so that each of the plurality of coplanar coils produces a magnetic field; means for reversing polarity of the magnetic field of at least one of the plurality of coplanar coils based on a measure of coupling between coils; and means for selecting at least two of the plurality of coplanar coils for wireless power transmission based on the measure of coupling between coils. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24)
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25. A non-transitory computer storage that stores executable program instructions that direct an apparatus for wireless power transmission to perform a process that comprises:
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energizing a plurality of coplanar coils so that each of the plurality of coplanar coils produces a magnetic field; reversing polarity of the magnetic field of at least one of the plurality of coplanar coils based on a measure of coupling between coils; and selecting at least two of the plurality of coplanar coils for wireless power transmission based on the measure of coupling between coils. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32)
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Specification