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- W2015382076 abstract "Any piezoelectric generator structure can be modeled close to its resonance by an equivalent circuit derived from the well known Mason equivalent circuit. This equivalent circuit can therefore be used in order to optimize the harvested power using usual electrical impedance matching. The objective of this paper is to illustrate the full process leading to the definition of the proper passive load allowing the optimization of the harvested energy of any harvesting device. First, the electric equivalent circuit of the generator is derived from the Mason equivalent circuit of a seismic harvester. Theoretical ideal impedance matching and optimal load analyze is then given emphasizing the fact that for a given acceleration a constant optimal output power is achievable for any frequency as long as the optimal load is feasible. Identification of the equivalent circuit of an experimental seismic harvester is then derived and matched impedance is defined both theoretically and experimentally. Results demonstrate that an optimal load can always be obtained and that the corresponding output power is constant. However, it is very sensitive to this impedance, and that even if impedance matching is a longtime well known technique, it is not really experimentally and practically achievable." @default.
- W2015382076 created "2016-06-24" @default.
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- W2015382076 date "2014-04-01" @default.
- W2015382076 modified "2023-09-27" @default.
- W2015382076 title "Piezogenerator impedance matching using Mason equivalent circuit for harvester identification" @default.
- W2015382076 cites W2061415034 @default.
- W2015382076 doi "https://doi.org/10.1117/12.2044793" @default.
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