Wireless charging system using resonant coupling
Wireless power transfer is technique using which electrical power can be transferred without any physical contact between the source and the load. This paper proposes a simple, economical and efficient technique for wireless power transfer. Two different techniques available for wireless transmission of electricity and the need for a wireless system of energy transmission are discussed in this paper. The chief concern here is to transfer the power wirelessly without any adverse effect on environment and humans. The basis of this technology is to use magnetic resonance for transmitting the power wirelessly. The operating frequency of coil is up to 60 kHz in a short distance range. A Zero Voltage Switching (ZVS) circuit is used to achieve maximum power transfer. The new applications of wireless power transfer technology (WPTT) are also enumerated in this paper.