Witricity Corporation

Qiang Li

Andre B Kurs

Andrew J Campanella

Marin Soljacic

Morris P Kesler

Katherine L Hall

Aristeidis Karalis

Konrad J Kulikowski

Eric R Giler

David A Schatz

Alexander Patrick McCauley

Ron Fiorello

Frank Pergal

Steven J Ganem

A wireless charging pad includes a capacitively-loaded conducting loop source resonator, with a characteristic size, L1, connected to a switching amplifier and configured to generate an oscillating magnetic field, wherein the conducting loop comprises multiple turns circumscribing an area, the conducting loop does not extend into the center of the circumscribed area, the source resonator delivers useful power to at least one device resonator with a characteristic size, L2, and where L1 is larger than L2.

Position insensitive wireless charging

Printed resonator coil

A wireless power transfer system for computer peripherals, includes a source magnetic resonator, integrated into a source station and connected to a power source and power and control circuitry, and a device magnetic resonator, integrated into a computer peripheral wherein power is transferred non-radiatively from the source magnetic resonator to the device magnetic resonator, and wherein the source magnetic resonator is configured to transfer power during predefined intervals.

Wireless energy transfer systems

A wireless power supply includes a source magnetic resonator, connected to a power source and configured to exchange power wirelessly via a wireless power transfer signal with at least one device magnetic resonator integrated into at least one peripheral component of a computer and a processor configured to adjust the operating point of the wireless power supply wherein power is transferred non-radiatively from the wireless power supply to the at least one device magnetic resonator and wherein the power supply forms a part of the computer.

Described herein are improved configurations for a lighting system with wireless power transfer that includes a source high-Q magnetic resonator coupled to a power source and generating an oscillating magnetic field, at least one device high-Q magnetic resonator configured to convert said oscillating magnetic field to electrical energy used to power a light coupled to the at least one device resonator, and at least one repeater resonator, larger than the device resonator, wherein the repeater resonator is positioned further from the source resonator than the device resonator and improves the power transfer efficiency between the source resonator and the device resonator.

Wireless energy transfer using repeater resonators

Described herein are improved capabilities for a source resonator having a Q-factor Q&#x3e;100 and a characteristic size xcoupled to an energy source, and a second resonator having a Q-factor Q&#x3e;100 and a characteristic size xcoupled to an energy drain located a distance D from the source resonator, where the source resonator and the second resonator are coupled to exchange energy wirelessly among the source resonator and the second resonator.

Wireless energy transfer resonator kit

Described herein are improved configurations for wireless power transfer for computer peripherals, including a source magnetic resonator, integrated into a source station and connected to a power source and power and control circuitry; a device magnetic resonator, integrated into a computer peripheral; wherein power is transferred non-radiatively from the source magnetic resonator to the device magnetic resonator, and where the quality factors of the source and device resonators, Qand Q, satisfy the relationship, &#x221a;{square root over (QQ)}&#x3e;100.

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Malden, MA, United States of America

Qiang Li