Abstract: Wireless power transfer system include: a seat configured to support a human and including a first resonator featuring a conductive coil formed by a plurality of loops that each encircle a common first axis, a layer of magnetic material, and a conductive shield; an article of clothing featuring a second resonator having a conductive coil formed by a plurality of loops that each encircle a common second axis, so that when the article of clothing is worn by the human and the human is seated in the seat, the first and second axes are aligned; and a first electronic apparatus positioned in the seat and coupled to the first resonator, and configured to deliver electrical power to the first resonator so that during operation of the system, power is transferred wirelessly from the first resonator to the second resonator.

Abstract: A current sensing system and method for wireless energy transfer may include a printed circuit board, wherein the printed circuit board may include at least a first layer, a second layer, and a third layer. A loop of conductive material may be included, wherein the loop of conductive material may include a diameter D3 on the second layer. A coil of conductive material may be included, wherein the coil of conductive material may have at least 2 turns, wherein a majority of the coil of conductive material may occupy the first layer and the third layer with an outer diameter D1 and an inner diameter D2, connected through each of the first, second, and third layers. The loop of conductive material may be coupled to the coil of conductive material.

Abstract: Improved configurations for wireless energy transfer can include system elements of a wireless energy transfer system that may pair in-band and out-of-band communication channels by exchanging related information. Energy transfer signals may be modulated according to defined waveforms. Information about the signal may be transmitted using an out-of-band communication channel. A system element that receives both the signal and information may verify that they correspond to the same system element.

Abstract: A current sensing system and method for wireless energy transfer may include a printed circuit board, wherein the printed circuit board may include at least a first layer, a second layer, and a third layer. A loop of conductive material may be included, wherein the loop of conductive material may include a diameter D3 on the second layer. A coil of conductive material may be included, wherein the coil of conductive material may have at least 2 turns, wherein a majority of the coil of conductive material may occupy the first layer and the third layer with an outer diameter D1 and an inner diameter D2, connected through each of the first, second, and third layers. The loop of conductive material may be coupled to the coil of conductive material.

Abstract: A testing system for wireless power transfer systems, including a stationary plate, a rotating plate, and a driver to rotate the rotating plate with respect to the stationary plate.

Abstract: Wireless power transfer system include: a seat configured to support a human and including a first resonator featuring a conductive coil formed by a plurality of loops that each encircle a common first axis, a layer of magnetic material, and a conductive shield; an article of clothing featuring a second resonator having a conductive coil formed by a plurality of loops that each encircle a common second axis, so that when the article of clothing is worn by the human and the human is seated in the seat, the first and second axes are aligned; and a first electronic apparatus positioned in the seat and coupled to the first resonator, and configured to deliver electrical power to the first resonator so that during operation of the system, power is transferred wirelessly from the first resonator to the second resonator.

Abstract: Described herein are improved configurations for wireless energy transfer. System elements of a wireless energy transfer system may pair in-band and out-of-band communication channels by exchanging related information. Energy transfer signals may be modulated according to defined waveforms. Waveform characteristics may be transmitted using an out-of-band communication channel. A system element that receives both the waveform and the waveform characteristics may verify that they correspond to the same system element by verifying that the waveform matches the waveform characteristics.

Abstract: A wireless energy transfer system includes wirelessly powered footwear. Device resonators in footwear may capture energy from source resonators. Captured energy may be used to generate thermal energy in the footwear. Wireless energy may be generated by wireless warming installations. Installations may be located in public locations and may activate when a user is near the installation. In some cases, the warming installations may include interactive displays and may require user input to activate energy transfer.

Abstract: A testing system for wireless power transfer systems, including a stationary plate, a rotating plate, and a driver to rotate the rotating plate with respect to the stationary plate.