UNIFORM WIRELESS CHARGING DEVICE
First Claim
1. A wireless charging device, comprising:
- a resonator including coil windings, the resonator configured to generate a magnetic field; and
a feed point connected to an inner winding of the coil windings of the resonator, the feed point being configured to connect power to the resonator.
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Accused Products
Abstract
In a wireless charging device that includes a resonator having coil windings, a magnetic field can be generated by the resonator. The wireless charging device can include a feed point connected to an inner winding of the coil windings of the resonator. The resonator can inductively couple with a power receiving unit such that the an outer winding of the coil windings limit Eddy current generation in one or more conductive surfaces positioned adjacent to the power receiving unit. The feed point can be selectively connected to the inner winding of the coil in a first mode of operation and the outer winding of the coil in a second mode of operation. The inner winding can have a larger current than the outer winding.
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Citations
22 Claims
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1. A wireless charging device, comprising:
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a resonator including coil windings, the resonator configured to generate a magnetic field; and a feed point connected to an inner winding of the coil windings of the resonator, the feed point being configured to connect power to the resonator. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A wireless charging device, comprising:
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a resonator including coil windings, the resonator configured to generate a magnetic field; and a feed point selectively connected to the coil windings of the resonator, the feed point being configured to connect power to the resonator, wherein the feed point is connected to; an inner winding of the coil in a first mode of operation, and an outer winding of the coil in a second mode of operation. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A power transmitting unit (PTU), comprising:
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a resonator including coil windings having an inner winding and an outer winding, the resonator configured to generate a magnetic field to inductively couple with a power receiving unit (PRU), wherein the outer winding of the coil windings is configured to limit Eddy current generation in one or more conductive surfaces positioned adjacent to the PRU; and a feed point selectively connected to the coil windings of the resonator, wherein the feed point is connected to; the inner winding of the coil in a first mode of operation, the inner winding having a larger current than the outer winding; and the outer winding of the coil in a second mode of operation. - View Dependent Claims (22)
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Specification