methods circuits composed of bare copper wire formed into coils to form inductors

METHODS•Circuits composed of bare copper wire formed into coils to form inductors. •Driver Circuit transmits signal to receiver•Receiver circuit dissipates signal across a load.

Research Team: Amir Shahidi, Sandunmalee Abeyratne, Joyeta Samanta, Christopher Lyons, Zachary Wilson, Hersh Lalwani

Advisors: Dimitrios Peroulis

OBJECTIVES•Investigate feasibility of wireless power transfer via inductive resonant coupling•Design and implement a coupled network to quantify power transfer efficiency

FUTURE WORK•Achieving >50% efficiency•Making circuit network more stable•Increasing distance between circuits•Decreasing circuit size

FINDINGS•Peak power transfer by simulation @ 1MHz•Highest Efficiency –> 62%•Small changes in coil result in large changes in inductance values

ABOUT RESONANT CIRCUITS•Inductor/Capacitor circuit network•Resonantly coupled circuits allow for minimal energy losses•At common frequency power can be sent over several coil diameters

Wireless Power Transfer

15 µH

1 µH