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Lallart, Mickael
Institut National des Sciences Appliquées de Lyon
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (7/7 displayed)
- 2023ON THE FUNCTIONALIZATION OF COMPOSITE STRUCTURES USING PIEZOELECTRIC TRANSDUCERS FOR TRANSPORTATION APPLICATIONS: VIBRATION CONTROL AND ENERGY HARVESTING
- 2022Characterization of Tensile Stress-Dependent Directional Magnetic Incremental Permeability in Iron-Cobalt Magnetic Sheet: Towards Internal Stress Estimation through Non-Destructive Testingcitations
- 2020A piezoelectric self-powered active interface for AC/DC power conversion improvement of electromagnetic energy harvestingcitations
- 2019Flexible PZT thin films prepared by Chemical Solution Deposition process
- 2019Flexible PZT thin films prepared by Chemical Solution Deposition process
- 2019AC/DC power conversion improvement of rotational electromagnetic energy harvesting using piezoelectric elements for active rectification
- 2012Modeling of thickness effect and polarization saturation in electrostrictive polymerscitations
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article
A piezoelectric self-powered active interface for AC/DC power conversion improvement of electromagnetic energy harvesting
Abstract
In the framework of hybrid energy harvesting for scavenging ambient motion, this paper proposes a cooperative piezoelectricelectromagnetic energy harvesting system to harvest rotational energy. In particular, while the actual process of harvesting energy is accomplished by the electromagnetic device, the piezoelectric element is used for improving the AC/DC conversion efficiency of the former. To do so, a half wave voltage doubler using MOSFETs driven by the piezoelement is employed. The low voltage output (order of magnitude of mV) of the electromagnetic system and the low conversion abilities of the piezoelectric transducer in the proposed mechanical structure justifies the motivation behind this work. Simulations followed by experimental validations are exposed and discussed, highlighting the improvement of energy conversion efficiency of an electromagnetic transducer, giving a power gain of 27 with respect to the DC power obtained with standard silicon diodes.