| 摘要 |
<p>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.</p> |
