187results about How to "Efficient energy transfer" patented technology

In embodiments of the present invention improved capabilities are described for a method and system comprising a source resonator optionally coupled to an energy source and a second resonator located a distance from the source resonator, where the source resonator and the second resonator are coupled to provide near-field wireless energy transfer among the source resonator and the second resonator and where the field of at least one of the source resonator and the second resonator is shaped to avoid a loss-inducing object.

A mobile wireless receiver for use with a first electromagnetic resonator coupled to a power supply includes a load associated with powering an electrically powered medical device, and a second electromagnetic resonator configured to be coupled to the load and moveable relative to the first electromagnetic resonator, wherein the second electromagnetic resonator is configured to be wirelessly coupled to the first electromagnetic resonator to provide resonant, non-radiative wireless power to the second electromagnetic resonator from the first electromagnetic resonator, and wherein the second electromagnetic resonator is configured to be tunable during system operation so as to at least one of tune the power provided to the second electromagnetic resonator and tune the power delivered to the load.

Described herein are improved configurations for a device for wireless power transfer that includes a conductor forming at least one loop of a high-Q resonator, a capacitive part electrically coupled to the conductor, and a power and control circuit electrically coupled to the conductor, the power and control circuit providing two or more modes of operation and the power and control circuit selecting how the high-Q resonator receives and generates an oscillating magnetic field.

A vehicle powering wireless receiver for use with a first electromagnetic resonator coupled to a power supply. The wireless receiver includes a load configured to power the drive system of a vehicle using electrical power, and a second electromagnetic resonator adapted to be housed upon the vehicle and configured to be coupled to the load, wherein the second electromagnetic resonator is configured to be wirelessly coupled to the first electromagnetic resonator to provide resonant, non-radiative wireless power to the second electromagnetic resonator from the first electromagnetic resonator, and wherein the frequency of at least one electromagnetic resonator is selected to prevent transfer of power to unauthorized devices.

A vehicle powering wireless receiver for use with a first electromagnetic resonator coupled to a power supply includes a load configured to power the drive system of a vehicle using electrical power, a second electromagnetic resonator adapted to be housed upon the vehicle and configured to be coupled to the load, wherein the second electromagnetic resonator is configured to be wirelessly coupled to the first electromagnetic resonator to provide resonant, non-radiative wireless power to the second electromagnetic resonator from the first electromagnetic resonator; and an authorization facility to confirm compatibility of the resonators and provide authorization for initiation of transfer of power.

A vehicle powering wireless receiver for use with a first electromagnetic resonator coupled to a power supply. The wireless receiver including a load configured to power the drive system of a vehicle using electrical power, a second electromagnetic resonator adapted to be housed upon the vehicle and configured to be coupled to the load, a safety system for to provide protection with respect to an object that may become hot during operation of the first electromagnetic resonator. The safety system including a detection subsystem configured to detect the presence of the object in substantial proximity to at least one of the resonators, and a notification subsystem operatively coupled to the detection subsystem and configured to provide an indication of the object, wherein the second resonator is configured to be wirelessly coupled to the first resonator to provide resonant, non-radiative wireless power to the second resonator from the first resonator.

Described herein are improved configurations for a resonator for wireless power transfer that includes a conductor forming one or more loops and having an inductance L, a network of capacitors, having a capacitance, C, and a desired electrical parameter, coupled to the conductor, the network having at least one capacitor of a first type with a first temperature profile of the electrical parameter, and the network having at least one capacitor of a second type with a second temperature profile of the electrical parameter.