Leveraging circuit theory and nonlinear dynamics for the efficiency improvement of energy harvesting

Abstract We study the performance of vibrational energy harvesting systems with piezoelectric and magnetic inductive transducers, assuming power external disturbance concentrated around a specific frequency. Both linear nonlinear harvester models are considered. use circuit theory equivalent circuits to show that large improvement in both harvested efficiency is obtained, for systems, through proper reactive modification load. For we methods dynamics derive analytical formulae output voltage, efficiency. also case, modified load significantly boosts performance.