Employing a MEMS plasma switch for conditioning high-voltage kinetic energy harvesters

Triboelectric nanogenerators have attracted wide attention due to their promising capabilities of scavenging the ambient environmental mechanical energy. However, efficient energy management of the generated high-voltage for practical low-voltage applications is still under investigation. Autonomous...

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Vydáno v:Nature communications Ročník 11; číslo 1; s. 3221 - 10
Hlavní autoři: Zhang, Hemin, Marty, Frédéric, Xia, Xin, Zi, Yunlong, Bourouina, Tarik, Galayko, Dimitri, Basset, Philippe
Médium: Journal Article
Jazyk:angličtina
Vydáno: London Nature Publishing Group UK 26.06.2020
Nature Publishing Group
Nature Portfolio
Témata:
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147/135
639/166/987
639/4077/4072
Actuation
Circuits
Conditioning
Electric power generation
Electronic circuits
Energy
Energy harvesting
Energy management
Engineering Sciences
High voltages
Humanities and Social Sciences
Hysteresis
Kinetic energy
Micro and nanotechnologies
Microelectromechanical systems
Microelectronics
Micromachining
multidisciplinary
Nanogenerators
Power consumption
Scavenging
Science
Science (multidisciplinary)
Stability
Switches
Voltage
ISSN:2041-1723, 2041-1723
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Shrnutí:Triboelectric nanogenerators have attracted wide attention due to their promising capabilities of scavenging the ambient environmental mechanical energy. However, efficient energy management of the generated high-voltage for practical low-voltage applications is still under investigation. Autonomous switches are key elements for improving the harvested energy per mechanical cycle, but they are complicated to implement at such voltages higher than several hundreds of volts. This paper proposes a self-sustained and automatic hysteresis plasma switch made from silicon micromachining, and implemented in a two-stage efficient conditioning circuit for powering low-voltage devices using triboelectric nanogenerators. The hysteresis of this microelectromechanical switch is controllable by topological design and the actuation of the switch combines the principles of micro-discharge and electrostatic pulling, without the need of any power-consuming control electronic circuits. The experimental results indicate that the energy harvesting efficiency is improved by two orders of magnitude compared to the conventional full-wave rectifying circuit. Conditioning efficiently high-voltage triboelectric nanogenerators for low-voltage applications remains a challenge. Here, the authors demonstrate two orders of magnitude improvement of the energy harvesting efficiency by applying a conditioning circuit with self-sustained and automatic hysteresis MEMS micro-plasma switches.
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ISSN:2041-1723
2041-1723
DOI:10.1038/s41467-020-17019-5