The Development of Power Maximization Wireless Electricity (WitriCity)

Abstract

This project describes the Development of Power Maximization Wireless Electricity using Dipole Coil Resonant System. The Dipole Coil Resonant System has been chosen instead of using conventional loop due to its ability to increase the distance of power transmission between transmitter and receiver. The small-scale of prototype of the system with low power circuit has been developed. The superiority of dipole coils for a long-distance power delivery over loop coils with same configuration of square core, in general, is verified by comparing magnetizing inductance between primary and secondary coils. Series-parallel resonant circuit have been used to achieve higher load voltage than the series-series scheme. An optimum number of turns of the secondary coils has been derived theoretically and verified by experiments, where a prototype of narrow dipole coils with some specification value has been tested. Additionally, the effect to the power transmission with the injection of resonant frequency 1 kHz have been observed