Adaptive inductive power supply with communication

摘要

The invention provides a contactless power supply for inductively providing power to a remote device. The efficacy of the device is enhanced by receiving information from the remote device independently of the inductive coupling, sensing in the power supply a characteristic of power being affected by a characteristic of the remote device reflected through the inductive coupling and controlling the operation of the power supply in response to the sensed characteristic and to the power information received in the inductive power supply from the remote device.