Adaptive power control for wireless charging of devices
First Claim
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1. A wireless power transmitter, comprising:
- a transmit antenna configured to generate an electromagnetic field having a region for wirelessly transferring power from the transmit antenna to a plurality of receiver devices; and
a controller operably coupled to the transmit antenna, the controller being configured to;
determine a power allocation for a particular one of the plurality of receiver devices which are allocated percentages of the power therebetween and disposed within the region, andadjust the power allocation based at least in part on a power requirement received from the particular one of the plurality of receiver devices.
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Abstract
Exemplary embodiments are directed to wireless power transfer. A transmit antenna generates an electromagnetic field having a region for wirelessly transferring power from the transmit antenna to a plurality of receiver devices. A controller is operably coupled to the transmit antenna. The controller determines a power allocation for a particular one of the plurality of receiver devices disposed within the region, and adjusts the power allocation based at least in part on a power requirement received from the particular one of the plurality of receiver devices.
381 Citations
20 Claims
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1. A wireless power transmitter, comprising:
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a transmit antenna configured to generate an electromagnetic field having a region for wirelessly transferring power from the transmit antenna to a plurality of receiver devices; and a controller operably coupled to the transmit antenna, the controller being configured to; determine a power allocation for a particular one of the plurality of receiver devices which are allocated percentages of the power therebetween and disposed within the region, and adjust the power allocation based at least in part on a power requirement received from the particular one of the plurality of receiver devices. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A wireless power transmitter, comprising:
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a transmit antenna configured to generate an electromagnetic field having a region for wirelessly transferring power from the transmit antenna to a plurality of receiver devices; and a controller operably coupled to the transmit antenna, the controller being configured to; determine a power allocation for a particular one of the plurality of receiver devices disposed within the region, and adjust the power allocation based at least in part on a power requirement received from the particular one of the plurality of receiver devices, wherein the controller is further configured to determine the power allocation for the particular one of the plurality of receiver devices based at least in part on the distance between the particular receiver device and the transmit antenna. - View Dependent Claims (8)
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9. A method of wireless power transfer, comprising:
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generating, at a transmit antenna, an electromagnetic field having a region for wirelessly transferring power from the transmit antenna to a plurality of receiver devices; determining a power allocation for a particular one of the plurality of receiver devices which are allocated percentages of the power therebetween and disposed within the region; and adjusting the power allocation based at least in part on a power requirement received from the particular one of the plurality of receiver devices. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A method of wireless power transfer, comprising:
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generating, at a transmit antenna, an electromagnetic field having a region for wirelessly transferring power from the transmit antenna to a plurality of receiver devices; determining a power allocation for a particular one of the plurality of receiver devices disposed within the region; and adjusting the power allocation based at least in part on a power requirement received from the particular one of the plurality of receiver devices, wherein the power allocation for the particular one of the plurality of receiver devices is determined based at least in part on the distance between the particular receiver device and the transmit antenna. - View Dependent Claims (17)
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18. A power transfer system, comprising:
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means for generating an electromagnetic field having a region for wirelessly transferring power to a plurality of receiver devices; means for determining a power allocation for a particular one of the plurality of receiver devices which are allocated percentages of the power therebetween and disposed within the region; and means for adjusting the power allocation based at least in part on a power requirement received from the particular one of the plurality of receiver devices. - View Dependent Claims (19)
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20. A power transfer system, comprising:
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means for generating an electromagnetic field having a region for wirelessly transferring power to a plurality of receiver devices; means for determining a power allocation for a particular one of the plurality of receiver devices disposed within the region; and means for adjusting the power allocation based at least in part on a power requirement received from the particular one of the plurality of receiver devices, wherein the determining means is configured to determine the power allocation for the particular one of the plurality of receiver devices based at least in part on the distance between the particular receiver device and the generating means.
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Specification