Abstract: A differential rectifier for use in a receiver for receiving wireless power via inductive coupling comprises first and second capacitors; first and second switching elements; and first and second inductors. The first capacitor and first inductor are electrically connected in series, and the second capacitor and second inductor are electrically connected in series. The first switching element is electrically connected between the first capacitor and first inductor in parallel, and the second switching element is electrically connected between the second capacitor and second inductor in parallel. The first capacitor electrically is connected to a terminal of a coil for receiving power wirelessly via inductive coupling, and the second capacitor is electrically connected to another terminal of a coil for receiving power wirelessly via inductive coupling. The first and second switching elements are electrically connected to a tap of a coil for receiving power wirelessly via inductive coupling.

Abstract: A radome is provided. The radome comprises a heating element positioned on a surface of the radome, the heating element consisting of a receiver coil of a receiver of a wireless power transfer system, the receiver coil formed of a resistive foil material; and a transmitter coil of a transmitter of a wireless power transfer system, the transmitter coil for generating a magnetic field for transferring power to the receiver coil via magnetic field coupling.

Abstract: There is provided a bearing comprising an inner race, an outer race and one or more roller elements positioned radially between the inner and outer races. The bearing further comprises a wireless power transfer system affixed to or integrally formed with the at least one of the races.

Abstract: A radome is provided. The radome comprises a heating element positioned on a surface of the radome, the heating element consisting of a receiver coil of a receiver of a wireless power transfer system; and a transmitter coil of a transmitter of a wireless power transfer system, the transmitter coil for generating a magnetic field for transferring power to the receiver coil via magnetic field coupling.

Abstract: A wireless power transfer system is provided. The system comprises a transmitter comprising a transmitter resonator comprising a plurality of one-dimensional transmitter electrodes, and an inverter. The system further comprises a receiver comprising a receiver resonator comprising a plurality of one-dimensional receiver electrodes, and a rectifier. The inverter is electrically connected to each of the transmitter electrodes. The inverter is electrically connected at offset points on the transmitter electrodes. The rectifier is electrically connected to each of the receiver electrodes. The rectifier is electrically connected at offset points on the receiver electrodes.

Abstract: A differential rectifier for use in a receiver for receiving wireless power via inductive coupling comprises first and second capacitors; first and second switching elements; and first and second inductors. The first capacitor and first inductor are electrically connected in series, and the second capacitor and second inductor are electrically connected in series. The first switching element is electrically connected between the first capacitor and first inductor in parallel, and the second switching element is electrically connected between the second capacitor and second inductor in parallel. The first capacitor electrically is connected to a terminal of a coil for receiving power wirelessly via inductive coupling, and the second capacitor is electrically connected to another terminal of a coil for receiving power wirelessly via inductive coupling. The first and second switching elements are electrically connected to a tap of a coil for receiving power wirelessly via inductive coupling.