Capacitive Energy Conversion With Circuits Implementing a Rectangular Charge-Voltage Cycle Part 2: Electromechanical and Nonlinear Analysis

Abstract : In this paper, we explore and describe the electromechanical coupling which results from eKEH conditioning circuits implementing a rectangular QV cycle, including but not limited to the charge pump and Bennet's doubler circuits. We present numerical and semi-analytical analyses describing the nonlinear relationship between the oscillating mass and the conditioning circuit. We believe this is a poorly understood facet of the device and, as we will portray, affects the potential harvested energy. An approach to determine the frequency shift due to the electromechanical coupling is presented and compared with novel experimental results. We provide some examples of bifurcation behavior and show that the only source of nonlinearity is in the coupling between the electrical and mechanical domains. This work continues from the electrical analysis presented in Part 1, providing a full insight into the complex behavior of the electromechanical coupling.
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https://hal.archives-ouvertes.fr/hal-01521579
Contributeur : Dimitri Galayko <>
Soumis le : vendredi 12 mai 2017 - 01:16:36
Dernière modification le : mardi 11 décembre 2018 - 01:22:31

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Eoghan O'Riordan, Andrii Dudka, Dimitri Galayko, Philippe Basset, Orla Feely, et al.. Capacitive Energy Conversion With Circuits Implementing a Rectangular Charge-Voltage Cycle Part 2: Electromechanical and Nonlinear Analysis. IEEE Transactions on Circuits and Systems - Part I, 2015, 62 (11), pp.2664 - 2673. 〈http://ieeexplore.ieee.org/document/7300453/〉. 〈10.1109/TCSI.2015.2451913〉. 〈hal-01521579〉

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