Wireless Power Transfer with Class E Power Amplifier and Magnetic Field Repeater

Wireless Power Transfer is the future alternative to replace overhead and underground transmission methods in delivering electrical power. The attention given to this technology has been increasing tremendously after MIT introduced Magnetic Resonance Coupling which utilizes magnetic resonance to deliver power wirelessly. There is great potential to research on this area as it can deliver power to unreachable areas and it will be the method of transmitting electrical power in the future. In this project, a combination of Class E power amplifier and magnetic field repeater is proposed with the aim of enhancing the transmission power and distance. Besides that, Litz wire is used as the material for transmitter and receiver coil in order to reduce the skin effect because the ac resistance will increase drastically when the system is operating in high frequency.