Wireless transfer of electric power

• Main Author: Moffatt, Robert Alexander
• Other Authors: Marin Soljacic.
• Format: Others
• Language: English
• Published: Massachusetts Institute of Technology 2010
• Subjects: Physics.
• Online Access: http://hdl.handle.net/1721.1/51595

Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Physics, 2009. === Includes bibliographical references (leaf 49). === In this dissertation, I describe the design and construction of a system which can transfer electric power wirelessly. This is accomplished using inductive, near-field, non-radiative coupling between self-resonant copper helices. In our first experiment, we transfered 60W of power over a distance of 2m with 45% efficiency. In our second experiment, we designed a system which can transfer power from a single source to two devices, each 2m away, with 60% total efficiency. We also developed a quantitative model of our helical resonators which predicted the resonant frequency with an accuracy of 5%. === by Robert Alexander Moffatt. === S.B.