Design and Construction Circuit Drive System Electric Wireless Induction with Spiral Coil

This objective of research to circuit drive system electric wireless induction of spiral coil. Its be used as a prototype for wireless charging of electric induction by using the principle of changing electrical signals with high frequency passed the induction coil to create an induced electric field to the receiving induction coil. The receiving coil will change the electric field back into an electrical signal again. The transmission circuit uses a half bridge converter control circuit with frequency 35 kHz send current flowing through the transmitter coil. The receiver circuit is an inductive coil where the induced current is obtained from a rectifier and a high-pass filter to generate a DC voltage. The test results of the operation of the wireless induction electricity found to be able to transmit electrical signals from the transmitting circuit to the receiving circuit at a coil distance of 2 to 15 cm. The result is a maximum power output of 48.6 watts at a distance of 2 cm at a 15 ohm test load a 21% efficiency rating.