A study on wireless power transfer using tesla coil technique

Abstract

Wireless power transfer is the transmission of electrical energy from a power source to an electrical load without any conductive physical connection. Wireless electricity ensure that the cell phones, laptops, iPods, and other power electrical devices get changed on their own, with no need of plugging them that can prevent the sockets with all sorts of wires. Wireless power transfer is when the magnetic field is transferred over short distance. The magnetic field is created using inductive coupling between coils of wire or electric fields using capacitive coupling between electrodes. The most common form of wireless power transmission is carried out using direct induction followed by resonant magnetic induction. The carrying fluxes that induce in the inductor can be captured by another inductive coil that can produce an induced flux between the receiver coils that coupled to the primary coil. Since this technique using magnetic field to transfer the electrical energy, the flux that produces in the primary coil must be in high density with high frequency. Thus, the tesla coil is used as a transmitter to produces high voltage, high frequency and low alternating current in order to produce high density flux. In this work, a tesla coil is a main part of transmitter component in wireless electricity apparatus and need to develop with a view to demonstrate how magnetic induction is coupled to perform a wireless power transfer. In addition, the construction of winding coils of the tesla coil would be the great effects in order to provide electricity to supply a load without wires in distances. The advantages of the wireless electricity system would be completely eliminating existing wires for electrical appliances between power sources. With wireless electricity, the electrical system will be more secure as it will prevent user from electrocution of current and the power failure due to short circuit and fault or power loss on cable would never exist.