Unified modeling, analysis and comparison of piezoelectric vibration energy harvesters

•Presents a unified model of piezoelectric vibration energy harvesters.•Demonstrates that the same power limit applies to all circuit interfaces.•Explains the power behaviors of energy harvesters through the impedance plot.•Derives analytical expressions of critical coupling for SEH and SSHI interfa...

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Veröffentlicht in:	Mechanical systems and signal processing 2019-05, Vol.123, p.403-425
Hauptverfasser:	Liao, Yabin, Liang, Junrui
Format:	Artikel
Sprache:	eng
Schlagworte:	Coupling Electrical impedance Energy Energy harvesting Equivalent circuits Exact solutions Impedance Impedance matching Piezoelectric Piezoelectricity Power limit Unified modeling Vibration analysis
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