Design of energy harvester circuit for a MFC piezoelectric based on electrical circuit modeling

摘要

In this paper, the characteristic of the piezoelectric material, Macro Fiber Composites (MFC), has been investigated by comparison between the electrical equivalent circuit based simulation and the experimental result. The operational factors such as internal impedance and frequency which affect the maximum power output of the piezoelectric are systematically determined. The effect from the characteristic of the capacity after the rectifier circuit of the energy harvesting circuit in order to achieve the suitable energy storage is also mentioned. Some basic characteristic are tested and measured based on standard energy harvest kit and commercial MFC.