CLOVER LEAF AND BUTTERFLY COIL STRUCTURES FOR FLAT WIRELESS COUPLING PROFILES IN WIRELESS POWER TRANSFER APPLICATIONS
First Claim
1. An apparatus for wirelessly transferring charging power, the apparatus comprising:
- a coil comprising a conductor defining a plurality of sides of the coil, wherein for each of the plurality of sides of the coil, the conductor bows toward a center of the coil as the conductor extends from an outer portion of the respective side of the coil toward a middle portion of the respective side of the coil.
2 Assignments
0 Petitions
Accused Products
Abstract
In one aspect, an apparatus for wirelessly transferring charging power is provided. The apparatus comprises a coil comprising a conductor defining a plurality of sides of the coil. For each of the plurality of sides of the coil, the conductor bows toward a center of the coil as the conductor extends from an outer portion of the respective side of the coil toward a middle portion of the respective side of the coil. A magnetic coupling factor between the coil and a receive coil is within a predetermined percentage of a maximum or minimum magnetic coupling factor between the coil and the receive coil for all offsets of a center of the receive coil, with respect to the center of the coil, that are within a perimeter defined by the conductor of the coil.
17 Citations
30 Claims
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1. An apparatus for wirelessly transferring charging power, the apparatus comprising:
a coil comprising a conductor defining a plurality of sides of the coil, wherein for each of the plurality of sides of the coil, the conductor bows toward a center of the coil as the conductor extends from an outer portion of the respective side of the coil toward a middle portion of the respective side of the coil. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for wirelessly transferring charging power, the method comprising:
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driving, with an alternating current, a coil comprising a conductor defining a plurality of sides of the coil, wherein for each of the plurality of sides of the coil, the conductor bows toward a center of the coil as the conductor extends from an outer portion of the respective side of the coil toward a middle portion of the respective side of the coil, and wirelessly transferring charging power from the coil to another coil. - View Dependent Claims (10, 11, 12, 13, 14)
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15. A method for fabricating an apparatus for wirelessly transferring charging power, the method comprising:
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providing a ferrimagnetic structure, and forming a coil by disposing a conductor defining a plurality of sides of the coil such that, for each of the plurality of sides, the conductor bows toward a center of the coil as the conductor extends from an outer portion of the respective side of the coil toward a middle portion of the respective side of the coil. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22)
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23. An apparatus for wirelessly transferring charging power, the apparatus comprising:
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means for wirelessly transmitting charging power comprising a conductor defining a plurality of sides of the means for wirelessly transmitting charging power, wherein for each of the plurality of sides, the conductor bows toward a center of the means for wirelessly transmitting charging power as the conductor extends from an outer portion of the respective side toward a middle portion of the respective side; and means for driving the means for wirelessly transmitting charging power with an alternating current. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30)
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Specification