A cellphone charger using piezoelectric Effect

Abstract

Currently, efforts have been taken to find the eco-friendly and renewable sources of energy.Walking is a common activity in day to day life; when a person walks, he/she losses energy to the ground surface inform of impact, vibration, sound etc., due to transfer of the weight on the ground surface, through footfall on the ground during every step. The energy can be tapped and converted in the usable form such as in electrical form and can be temporarily stored for later use. To generate the energy from foot step one can use the pressure sensor which convert foot impact energy into electrical form.