A cost-effective system for wireless power transmission

In recent years, the notion of transfer of power using wireless techniques has attracted many researchers. Transfer of power by wireless means has been recently demonstrated in the Massachusetts Institute of Technology (MIT). This system operates at 9.9 MHz. In this paper, we have discussed the design of a simple and cost-effective system which can enable transmission of power over short distances. We have employed the H - Bridge Inverter configuration to convert DC power to high frequency (100 kHz) which is then radiated with the help of a suitable loop antenna. It is observed that this system can also be used as a induction heating unit. In this form it can be used to replace conventional convection heating based electric stoves.