Optimization Analysis of Interface Circuits in Piezoelectric Energy Harvesting Systems

  • Shuai Pang Beijing Forestry University
  • Wenbin Li Beijing Forestry University
  • Jiangming Kan Beijing Forestry University


Piezoelectric energy harvesting systems have different interface circuits, including the standard interface circuit,synchronized switch harvesting on inductor circuit, and synchronized charge extraction circuit. The comparison ofan interface circuit with a different interface circuit to determine which is better has been widely investigated. However,for a certain interface circuit, how the parameters can be optimized to increase efficiency in energy collectionhas rarely been investigated. To improve the energy harvesting efficiency of a certain interface circuit in a fast andconvenient manner, three interface circuits, which are the circuits to be optimized, were mainly introduced. A simulationmethod to optimize the circuit for energy collection was used. The simulation method was implemented inPspice and includes parametric, sensitivity, and optimization analyses. The output power of parallel synchronizedswitch harvesting on the inductor circuit can be increased from 20.13 mW to 25.23 mW, and the output power ofthe synchronized charge extraction circuit can be increased from 11.98 mW to 19.85 mW. Results show that theenergy collection performance can be improved by using the optimization simulation method.


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How to Cite
PANG, Shuai; LI, Wenbin; KAN, Jiangming. Optimization Analysis of Interface Circuits in Piezoelectric Energy Harvesting Systems. Journal of Power Technologies, [S.l.], v. 96, n. 1, p. 1--7, apr. 2016. ISSN 2083-4195. Available at: <https://papers.itc.pw.edu.pl/index.php/JPT/article/view/801>. Date accessed: 26 july 2021.
Energy Engineering and Technology

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