Wireless energy transmission system using electromagnetic induction for home appliances

Electric energy transmission can be conducted in two ways, wired and wireless with all their advantages and disadvantages. Wired electric transmission required wire connections that sometimes get complicated in design and also some spaces are needed. These disadvantages can be eliminated by the application of wireless transmission. This wireless energy transmission was first introduced by Nikola Tesla in 1899. In this work, we designed 2 coils functioning as a transmitter and a receiver to supply an AC load, a 15 watt bulb, and a DC load, a 4 watt rotary fan. We utilized the theorem of magnetic and electric field, assembled the system, and measured the results. We note that the distance between the transmitter and receiver circuit is affecting the resulted output voltage and current received by receiver. When supplied the 9 watt bulb, the distances required is at least 8.108 cm, and the output voltage received by the receiver is 148 V. For the DC load, when supplying 4 watt rotary fan, the best average distance is 7.5 cm with the output current is 3 A. Therefore, the distance between the transmitter and receiver circuit is very important in designing wireless energy transmission system. This paper proposes a simple and easily designs system that can be applied in any houses to supply home appliances.