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Electrostatic energy harvesting using capacitive generators without control circuits

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Abstract

This work discusses and analyzes in detail the operation of some structures of electrostatic generators that can be used for energy harvesting from mechanical vibrations or rotating movement, that do not require any active control circuit for their operation. The structures use an unstable generator based on Bennet’s doubler to bias another similar generator, or just to bias one or two variable capacitors, which form the main generator. Their action is similar to electric generators based on electrets, but they are purely based on variable capacitances. Theoretical analyses and experimental results are presented.

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Authors and Affiliations

  1. COPPE/EP – Electrical Engineering Program, Federal University of Rio de Janeiro, CP 68504, Rio de Janeiro, 21941-972, RJ, Brazil

    Antonio Carlos M. de Queiroz

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  1. Antonio Carlos M. de Queiroz
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Correspondence to Antonio Carlos M. de Queiroz.

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de Queiroz, A.C.M. Electrostatic energy harvesting using capacitive generators without control circuits. Analog Integr Circ Sig Process 85, 57–64 (2015). https://doi.org/10.1007/s10470-015-0577-0

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  • DOI: https://doi.org/10.1007/s10470-015-0577-0

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