Development of 416kHz PZT driver for acoustics energy transfer applications

Abstract

The power transfer efficiency and power transfer capability are the most crucial performance indicator in acoustic energy transfer (AET) applications. As overall efficiency is dependent on the power conditioning at the transmitter and receiver side, it is required to develop a high efficiency power amplifier on the transmitter side in addition with a high efficiency power processor at the receiving end. This paper developed the complete PZT driver with π1a matching impedance circuit that applied to the transmitter unit of the AET system in order to transmit 80mW power on the operating frequency of 416kHz. The Proteus Software used as a simulation platform with peripheral interface controller (PIC16F877A) as pulse width modulation signal generator for MOSFET IRF510 gate in the circuit. As the promising result, the developed transmitter unit shown 73.68mW at 416kHz with 92.1% power conversion efficiency.