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Single-Capacitor Electrostatic Vibration Energy Converter Based on the Bennet Doubler

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Abstract

In this paper, the results of the theoretical and experimental studies of a single-capacitor mechanical-to-electrical energy converter based on the Bennet doubler with a power source in a variable capacitor branch are presented. The analytical expressions obtained for calculating its basic characteristics make it possible to considerably simplify the search for parameters of the converter elements at the preliminary design stage. It is shown that the results of the theoretical calculations are in good agreement with the experimental data, which allows using them for the optimal selection of the converter elements in the development of electromechanical microgenerators, active vibration and acceleration sensors, and threshold devices detecting the excess of the permissible critical value of the structure’s vibration amplitude. The advantage of the investigated structure, in comparison with the basic design of the Bennet doubler, lies in its versatility and the converter’s capability to work under the action of a mechanical force leading the capacitance modulation depth of the capacitor to be less than 2. As a result, it is possible to extend the range of amplitudes of the external mechanical vibrations and the scope of the variable capacitors used.

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Funding

The work was supported by the Ministry of Science and Higher Education of the Russian Federation, project no. FSUN-2020-0004.

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Authors and Affiliations

  1. Novosibirsk State Technical University, 630073, Novosibirsk, Russia

    V. P. Dragunov, R. E. Sinitskiy & E. V. Dragunova

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  1. V. P. Dragunov
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  2. R. E. Sinitskiy
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  3. E. V. Dragunova
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Correspondence to V. P. Dragunov or R. E. Sinitskiy.

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Translated by N. Semenova

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Dragunov, V.P., Sinitskiy, R.E. & Dragunova, E.V. Single-Capacitor Electrostatic Vibration Energy Converter Based on the Bennet Doubler. Russ Microelectron 50, 178–188 (2021). https://doi.org/10.1134/S1063739721020049

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