Variable wireless power transmission
First Claim
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1. A wireless charging device, comprising:
- at least one transmitter; and
at least one transmit antenna associated with the at least one transmitter, wherein the at least one transmitter is configured to operate at a first power level to charge a first chargeable device during a first time period and a second power level to charge at least a second chargeable device during a second time period, wherein operating the at least one transmitter at the first or second power level depends on the degree of a coupling factor between the at least one transmit antenna and at least one receive antenna of the first or second chargeable device,wherein the first power level is higher than the second power level, andwherein the coupling factor between the at least one transmit antenna and the at least one receive antenna of the first chargeable device is higher than the coupling factor between the at least one transmit antenna and the at least one receive antenna of the second chargeable device.
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Abstract
Exemplary embodiments are directed to variable power wireless power transmission. A method may include conveying wireless power to a device at a first power level during a time period. The method may further include conveying wireless power to one or more other devices at a second, different power level during another time period.
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Citations
21 Claims
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1. A wireless charging device, comprising:
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at least one transmitter; and at least one transmit antenna associated with the at least one transmitter, wherein the at least one transmitter is configured to operate at a first power level to charge a first chargeable device during a first time period and a second power level to charge at least a second chargeable device during a second time period, wherein operating the at least one transmitter at the first or second power level depends on the degree of a coupling factor between the at least one transmit antenna and at least one receive antenna of the first or second chargeable device, wherein the first power level is higher than the second power level, and wherein the coupling factor between the at least one transmit antenna and the at least one receive antenna of the first chargeable device is higher than the coupling factor between the at least one transmit antenna and the at least one receive antenna of the second chargeable device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of charging one or more devices at a wireless charging device, comprising:
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providing wireless power to charge a first chargeable device at a first power level during a first time period; and providing wireless power to charge at least a second chargeable device at a second, different power level during a second time period, wherein providing wireless power to charge the first or second chargeable device at the first or second power level depends on the degree of a coupling factor between at least one transmit antenna of the wireless charging device and at least one receive antenna of the first or second chargeable device, and wherein the first power level is higher than the second power level, and wherein the coupling factor between the at least one transmit antenna and the at least one receive antenna of the first chargeable device is higher than the coupling factor between the at least one transmit antenna and the at least one receive antenna of the second chargeable device. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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21. A wireless charging device for charging one or more devices at the wireless charging device, comprising:
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means for conveying wireless power to a first chargeable device at a first power level during a first time period; and means for conveying wireless power to at least a second chargeable device at a second, different power level during a second time period, wherein conveying wireless power at the first or second power level depends on the degree of a coupling factor between the at least one transmit antenna of the wireless charging device and at least one receive antenna of the first or second chargeable device, wherein the first power level is higher than the second power level, and wherein the coupling factor between at least one transmit antenna and at least one receive antenna of the first chargeable device is higher than the coupling factor between the at least one transmit antenna and at least one receive antenna of the second chargeable device.
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Specification