Title :
Optimization of a piezoelectric energy harvester for environmental broadband vibrations
Author :
Paci, Dario ; Schipani, Monica ; Bottarel, Valeria ; Miatton, Daniele
Author_Institution :
STMicroelectronics, Milan
fDate :
Aug. 31 2008-Sept. 3 2008
Abstract :
Energy scavenging systems (ESS) can be important, theoretically endless, sources of energy. In the future, they could recharge or even replace batteries. In this paper a design methodology is presented in order to maximize the harvested energy and the transduction efficiency of a cantilever-like piezoelectric scavenger. The role of geometrical parameters is investigated through a theoretical analysis based on an equivalent lumped-parameter circuit, while their optimum value is chosen by means of FEM simulations.
Keywords :
cantilevers; energy harvesting; equivalent circuits; finite element analysis; lumped parameter networks; piezoelectric devices; vibrations; FEM simulations; cantilever-like piezoelectric scavenger; energy scavenging systems; environmental broadband vibrations; equivalent lumped-parameter circuit; finite element method; optimization; piezoelectric energy harvester; transduction efficiency; Accelerometers; Batteries; Circuit simulation; Design methodology; Electronic switching systems; Frequency; Piezoelectric transducers; Resonance; Vibration measurement; Voltage;
Conference_Titel :
Electronics, Circuits and Systems, 2008. ICECS 2008. 15th IEEE International Conference on
Conference_Location :
St. Julien´s
Print_ISBN :
978-1-4244-2181-7
Electronic_ISBN :
978-1-4244-2182-4
DOI :
10.1109/ICECS.2008.4674820
