In this paper, an adaptive electromagnetic energy harvester is proposed and analyzed. It is composed of an oscillating mass equipped with an electromagnetic transducer, whose pins are connected to a resonant resistive–inductive–capacitive electric circuit in order to increase its effective bandwidth. Closed-form expressions for the optimal circuit parameters are presented, which maximize the power harvested by the device under harmonic excitation. The harvesting efficiency, defined as the ratio between the harvested power and the power absorbed by the oscillating device, is also reported. It is used as an alternative objective function for the optimization of the harvester circuit parameters.
Broadband Energy Harvesting From Vibrations Using Magnetic Transduction
Contributed by the Technical Committee on Vibration and Sound of ASME for publication in the JOURNAL OF VIBRATION AND ACOUSTICS. Manuscript received May 25, 2015; final manuscript received August 11, 2015; published online October 6, 2015. Assoc. Editor: Mohammed Daqaq.
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Caruso, G. (October 6, 2015). "Broadband Energy Harvesting From Vibrations Using Magnetic Transduction." ASME. J. Vib. Acoust. December 2015; 137(6): 064503. https://doi.org/10.1115/1.4031413
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