In line with the increasing consumption of electricity used by consumers, a
wireless power transfer process is currently being developed that makes it easy to
use electronic equipment. In this study, a wireless electric power transfer system
with a Tesla plasma coil inductive coupling was developed. Experiments were
carried out by changing the number of turns and the diameter of the enamel wire
in order to find the best power efficiency value. The voltage source is connected
to an electronic circuit equipped with copper which has been formed as a sending
coil for the transmitter and a receiving coil for the receiver which is then
channeled electrical energy to the load. However, this process is still constrained
by the complicated arrangement of the circuit for electronic equipment. The Tesla
plasma coil circuit is expected to be able to overcome this problem because it can
change the shape of the signal into a sine as well as the circuit is simple and
requires a relatively small input power and utilizes a coil that has electromagnetic
properties as a wireless power transfer medium, this is proven in optimizing the
efficiency of electric power transfer. wirelessly. The circuit with an enamel wire
with a diameter of 0.35 mm, a coil diameter of 5 cm, the number of turns 48 x
turns, the efficiency of the power transferred at a distance of 1 cm is about 7 %.