Wireless Power Transfer Through Coils Seminar

Wireless power transfer by high frequency resonating coils was designed and implemented.

Wireless power transfer through coils seminar. The project can be enhanced in future up to 1 meter distance in space using resonators with a q factor of 1 000 enabling it to send power over a. The main concept of this project is to design a device for the concept of wireless power transfer to eliminate the use conventional copper cables and also current carrying wires. Wireless power techniques mainly fall into two categories near field and far field in near field or non radiative techniques power is transferred over short distances by magnetic fields using inductive coupling between coils of wire or by electric fields using capacitive coupling between metal electrodes. This project is built upon using a circuit which converts ac 230v 50hz to ac 12v high frequency hf.

To power the primary coils the cables are attached to the south korean national power grid through a power inverter a device that converts dc electricity into ac electricity. Here we regard the single sided wireless power transfer system as the transmitter and it consists of a single turn drive loop and a high q transmit coil. Because there is a small gap between the two coils. The human body is irradiated by the single sided wireless power transfer system operating at 6 8 mhz.

The single turn drive loop has an outer diameter of 305 mm while the transmit coil has a. The inverter accepts 3 phase 380 or 440 voltage from the grid to generate 20khz of ac electricity into the cables. Wireless power transfer by high frequency.