Abstract: An inductive power receiver including a resonant circuit, a rectifier, a rectified current sense, and a communication and control unit includes a communications modulator and at least one signal generator operable to generate a set of communication signals including a series of pulses generated at characteristic frequencies. Communication signals provide instructions for an inductive power outlet to regulate power transfer to the inductive power receiver.

Abstract: An inductive power transfer system is provided that includes at least one inductive power receiver having at least one secondary inductor for forming an inductive couple with a primary inductor and providing power to an electric load and at least one inductive power outlet having at least one primary inductor wired to a power supply via a driver configured to provide a driving voltage across the primary inductor. The driving voltage is oscillating at a transmission frequency significantly different from the natural frequency of the inductive couple. The system further includes at least one power monitor and at least one frequency modulator operable to adjust the natural frequency of the inductive couple thereby regulating power provided to the electric load.

Abstract: An inductive power receiver including a resonant circuit, a rectifier, a rectified current sense, and a communication and control unit includes a communications modulator and at least one signal generator operable to generate a set of communication signals including a series of pulses generated at characteristic frequencies. Communication signals provide instructions for an inductive power outlet to regulate power transfer to the inductive power receiver.

Abstract: An inductive power transfer system includes an inductive power transmitter in the shape of a container that is capable of holding one or more electrical devices. The system is operable to transfer power inductively to devices stowed within the container via inductive power receivers. The inductive power transmitter includes at least one primary inductor configured to couple inductively with at least one secondary inductor and at least one driver configured to provide a variable electric potential at a driving frequency across said primary inductor. The inductive power receiver may comprise at least one secondary inductor connectable to a receiving circuit and an electric load, said secondary inductor configured to couple inductively with said at least one primary inductor such that power is transferred to said electric load.