Design of a wireless power transmission system using ZVS technique and the resonant inductive coupling with hilting the influence of the distance on the transfer efficiency

The aim of this work is to realize a system which ensures the wireless power transfer to supply a load situated at a distance from the source. This system consists mainly of two circuits: one primary and other secondary. In its design one have used the Zero Voltage Switching (ZVS) technique in the primary circuit to improve the efficiency by reducing losses caused by MOSFET switches, and the resonant inductive coupling to ensure the energy transfer. This technique is classified as the most effective for these type of applications. Initially the system is powered by a 15V/3A DC voltage. Finally, the proposed system can feed a load located at a distance equal to 15 cm.