Wireless power transfer metering
First Claim
1. A system for measuring wireless power transfer between a transmitter and a receiver, the system comprising:
- a sensor circuit comprising a a plurality of sensors, each sensor of the plurality of sensors being configured and positioned relative to the transmitter and the receiver to generate sensor data indicative of transfer power propagating from the transmitter to the receiver in connection with the wireless power transfer; and
a processor coupled to the sensor circuit and configured to determine a power measurement of the transfer power based on the sensor data.
1 Assignment
0 Petitions
Accused Products
Abstract
A system measures wireless power transfer between a transmitter and a receiver. The system includes a sensor circuit including a sensor. The sensor is configured and positioned to generate sensor data indicative of a field. The field is generated in connection with the wireless power transfer. The system further includes a processor coupled to the sensor circuit and configured to determine a power measurement based on the sensor data. The processor is further configured to determine misalignment of the transmitter or the receiver. The processor is also configured to correct an estimate of the power measurement based on the misalignment.
5 Citations
30 Claims
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1. A system for measuring wireless power transfer between a transmitter and a receiver, the system comprising:
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a sensor circuit comprising a a plurality of sensors, each sensor of the plurality of sensors being configured and positioned relative to the transmitter and the receiver to generate sensor data indicative of transfer power propagating from the transmitter to the receiver in connection with the wireless power transfer; and a processor coupled to the sensor circuit and configured to determine a power measurement of the transfer power based on the sensor data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method of measuring wireless power transfer between a transmitter and a receiver, the method comprising:
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capturing field data with a plurality of sensors, each sensor of the plurality of sensors being configured and positioned relative to the transmitter and the receiver such that the field data is indicative of transfer power propagating from the transmitter to the receiver in connection with the wireless power transfer; and determining a power measurement of the transfer power based on the field data. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22)
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23. A method of calibrating a wireless power transfer measurement device, the method comprising:
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positioning a test receiver relative to a transmitter and the wireless power transfer measurement device; capturing field data for a load impedance with the wireless power transfer measurement device; determining a power measurement based on the field data; and determining a plurality of calibration factors for the wireless power transfer measurement device based on the power measurement. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30)
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Specification