Wireless electrical source for mobile application

Abstract

Wireless or contactless electrical energy transfer is a method of utilizing electromagnetic induction to transfer electrical power from the source (transmitter) to the loads (receivers) without using the conventional media, such as wires. This method had been investigated since end of 18 century, and Nikola Tesla was the first scientist to realize it. The development of technology increases the usage of electronics devices such as lamps, cellphone charger etc. More electronics mean more cable, therefore the application of wireless electrical power transfer is necessary to overcome the problems caused by wires. This paper discussed the design and realization of a transmitter (source) powering multiple receiver (loads), a 12 V lamps, a cellphone charger and a DC fan. In this research, the angles occurs due to the position of receiver relative to transmitter is also investigated since in real life, the transmitter will not always be parallel with the receiver(s). This paper shows a simple design that everyone is expected to recreate and applied in any offices or homes.