APPARATUS AND METHOD FOR LOST POWER DETECTION
First Claim
1. An apparatus for wirelessly transferring power, the apparatus comprising:
- a wireless power transmitter configured to wirelessly transmit power at a first power level sufficient to power or charge a chargeable device positioned within a charging region; and
a controller circuit operationally coupled to the wireless power transmitter and configured to;
obtain a first power measurement of the first power level of the wireless power transmitter,determine a first adjusted power measurement of the first power measurement based on a tolerance value of at least one component of the wireless power transmitter,obtain a second power measurement of a second power level received by the chargeable device,determine a second adjusted power measurement of the second power measurement based on a tolerance value of at least one component of the chargeable device, anddetermine if a power difference between the first and second adjusted power measurements exceeds a threshold value.
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Accused Products
Abstract
An apparatus and method for lost power detection are described. In one implementation, an apparatus for wirelessly transferring power comprises a wireless power transmitter configured to wirelessly transmit power at a first power level sufficient to power or charge a chargeable device. The apparatus further comprises a controller configured to obtain a first power measurement of the first power level. The controller is further configured to determine a first adjusted power measurement of the first power measurement based on one or more tolerance values of the wireless power transmitter. The controller is further configured to determine a second adjusted power measurement of a second power measurement of a second power level received by the chargeable device based on one or more tolerance values of the chargeable device. The controller is further configured to determine if a power difference between the first and second adjusted power measurements exceeds a threshold value.
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Citations
20 Claims
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1. An apparatus for wirelessly transferring power, the apparatus comprising:
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a wireless power transmitter configured to wirelessly transmit power at a first power level sufficient to power or charge a chargeable device positioned within a charging region; and a controller circuit operationally coupled to the wireless power transmitter and configured to; obtain a first power measurement of the first power level of the wireless power transmitter, determine a first adjusted power measurement of the first power measurement based on a tolerance value of at least one component of the wireless power transmitter, obtain a second power measurement of a second power level received by the chargeable device, determine a second adjusted power measurement of the second power measurement based on a tolerance value of at least one component of the chargeable device, and determine if a power difference between the first and second adjusted power measurements exceeds a threshold value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method for wirelessly transferring power, the method comprising:
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wirelessly transmitting power at a first power level sufficient to power or charge a chargeable device positioned within a charging region; obtaining a first power measurement of the first power level of the wireless power transmitter; determining a first adjusted power measurement of the first power measurement based on a tolerance value of at least one component of the wireless power transmitter; obtaining a second power measurement of a second power level received by the chargeable device; determining a second adjusted power measurement of the second power measurement based on a tolerance value of at least one component of the chargeable device, and determining if a power difference between the first and second adjusted power measurements exceeds a threshold value. - View Dependent Claims (14, 15, 16, 17, 18)
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19. An apparatus for wirelessly transferring power, the apparatus comprising:
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means for wirelessly transmitting power at a first power level sufficient to power or charge a chargeable device positioned within a charging region; means for obtaining a first power measurement of the first power level of the wireless power transmitter; means for determining a first adjusted power measurement of the first power measurement based on a tolerance value of at least one component of the wireless power transmitter; means for obtaining a second power measurement of a second power level received by the chargeable device; means for determining a second adjusted power measurement of the second power measurement based on a tolerance value of at least one component of the chargeable device, and means for determining if a power difference between the first and second adjusted power measurements exceeds a threshold value. - View Dependent Claims (20)
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Specification