VARIABLE WIRELESS POWER TRANSMISSION

摘要

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.

主权项

1. A wireless charging device, comprising:
a transmit circuit comprising at least one coil, the transmit circuit configured to wirelessly charge one or more chargeable devices via a wireless field; a controller circuit configured to:
determine a value indicative of a magnitude of a load presented to the transmit circuit by the one or more chargeable devices;cause the transmit circuit to transmit power at a first power level to charge a first chargeable device of the one or more chargeable devices during a first time period;cause the transmit circuit to transmit power at a second power level to charge at least one second chargeable device of the one or more chargeable devices during a second time period different than the first time period, the first power level higher than the second power level when the magnitude of the load presented to the transmit circuit by the first chargeable device is larger than the magnitude of the load presented to the transmit circuit by the at least one second chargeable device; andselectively determine whether to cause the transmit circuit to transmit at the first power level or the second power level based at least in part on the value indicative of the magnitude of the load presented to the transmit circuit.