Footstep Power Generation using Piezo Ceramic

Abstract

People move all the time. Wouldn’t it be great to harness that movement and help to power our cities with the movement of people living in them? Piezoelectric harvesting is one of the most reliable and energy efficient method. The crystalline structure of piezoelectric material provides the ability to transform mechanical strain energy into electrical energy. The power generated by piezo is D.C signal with A.C ripples, which is not used directly for battery charging so hence we use rectifier and filter to get pure D.C signal. Further boost converter circuit is used to step up the D.C signal and through battery charger circuit, battery is charged. This charge can be used to drive the a.c loads by converting D.C signal to A.C with help of inverter circuit.