Maximizing Efficiency of WPT System Using Amplifier

Abstract

The use of the wireless network has been increasing day by day. Wireless Power Transfer System is one of the most important sectors of wireless networking. In this paper, we have developed a circuit relating to Wireless Power Transfer System. Conventionally the circuit was constructed using Op-amp which leads to more complexity and less efficiency. In our circuit, we have used an amplifier to make the circuit more simple and more efficient. We have designed the circuit using Proteus software. Where we compared the output from the conventional circuit with our designed circuit. The result shows quite an improvement in terms of efficiency. So, the main thing for the operation of the WPT system is to have a high-frequency sine power for the coils to produce the altering flux. So, in our model, we made this high-frequency power by using high-power amplifiers. Amplifiers, as we know, can produce a high power version of their input signal and its input current is very low so we can generate the signal from a very low power controller like Arduino mini and feed that to the Amplifier. Besides amplifier's output is very close to the sine wave with very little distortion. Also as amplifiers are generally used to amplify audio signals they are very responsive to frequency change.