Adaptive power control for wireless charging of devices

A method of wireless power transfer, comprising:

• 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.

A power transfer system, comprising:

• 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.