Wireless Power Transmission With Brook's Coil Adaptation and Class E Power Amplifier

Wireless Power Transmission (WPT) via Magnetic Resonance Coupling will be the future method in transmitting electrical power. The vision of transferring power wirelessly will provide a solution to power equipments in unreachable areas. Success of WPT depends on distance of power transmission which requires great improvement. This project propose a multilayer Brook's coil design and class E power amplifier to increase transmission distance. The use of zero voltage switching MOSFET operation in a 375kHz class E power amplifier, serves to reduce power loss and increase current supplied to transmitter coil. A DC voltage of 13.34V was obtained at 30cm with 3.068mW power output at receiver end. This resulted to 15 times increased in transmission distance from previous project. Maximum output power achievable for this project was 418mW at 10cm transmission distance.