Optimised Model for Piezoelectric Energy Harvesting Circuits Design

Abstract

This paper presents an optimised model dedicated to design integrated systems for piezoelectric energy harvesting. Such systems implement a Full Active Rectifier (FAR) circuit whose efficiency depends on the architecture and switching strategy. In order to replace heavy transistor-level simulations, the proposed highly-configurable Matlab-Simulink® model offers the possibility to study the behaviour and assess the performance of any operation mode. The comparisons between simulations and experimental results performed on a CMOS integrated prototype of our FAR confirm the reliability and robustness of our model. The model thus enables large time scale system-level transient analysis with low computational resources and simulation time.