Results 1 to 10 of about 4,622,144 (293)

Improved Interface Circuit for Enhancing the Power Output of a Vibration-Threshold-Triggered Piezoelectric Energy Harvester

open access: yesEnergies, 2020
The vibration-threshold-triggered piezoelectric energy harvester is a new type of piezoelectric energy harvester with a two-stage structure, which can generate electricity in a low frequency environment and recognize vibration intensity at the same time.
Jiqiang Liu   +5 more
doaj   +2 more sources

Performance of an omnidirectional piezoelectric wind energy harvester [PDF]

open access: yesWind Energy, 2021
This paper presents a vortex‐induced vibration (VIV)‐based piezoelectric energy harvester that performs well for all wind directions, a so‐called omnidirectional wind energy harvester.
Tianyi Shi   +4 more
doaj   +2 more sources

The Impact of Maximum Power Point Tracking Algorithms on Properties of On-Chip PV-Based Energy Harvester for IoT Devices [PDF]

open access: yesSensors
This article presents the analysis of selected maximum power point tracking (MPPT) algorithms and their influence on developed energy harvester (EH) systems under uniform conditions.
Adam Hudec   +4 more
doaj   +2 more sources

A Magnetically Coupled Piezoelectric–Electromagnetic Low-Frequency Multidirection Hybrid Energy Harvester

open access: yesMicromachines, 2022
The traditional single electromechanical conversion energy harvester can collect energy only in a single vibration direction. Moreover, it requires high environmental vibration frequency, and its output power is low.
Yongqiang Zhu   +3 more
doaj   +1 more source

Research on piezoelectric vibration energy harvester with variable section circular beam

open access: yesJournal of Low Frequency Noise, Vibration and Active Control, 2021
In order to reduce the natural frequency of the piezoelectric vibration energy harvester, improve performance of the piezoelectric vibration energy harvester, and meet the requirements of energy acquisition in the low-frequency vibration environment, a ...
Tianbing Ma   +4 more
doaj   +1 more source

Impacts of Nonlinear Energy Harvesting and Residual Self-Interference on the Performance of Full-Duplex Decode-and-Forward Relay System

open access: yesIEEE Access, 2021
In this paper, we investigate the usage of a nonlinear energy harvester at a full-duplex (FD) relay, which can harvest the energy from radio frequency (RF) signals transmitted from the source. We mathematically derive the exact closed-form expressions of
Ba Cao Nguyen   +3 more
doaj   +1 more source

Two-Dimensional Omnidirectional Wind Energy Harvester with a Cylindrical Piezoelectric Composite Cantilever

open access: yesMicromachines, 2023
To improve the response-ability of the energy harvester to multidirectional wind, this paper proposes a wind energy harvester to scavenge wind-induced vibration energy.
Mingyong Xin   +4 more
doaj   +1 more source

Theoretical Study on Widening Bandwidth of Piezoelectric Vibration Energy Harvester with Nonlinear Characteristics

open access: yesMicromachines, 2021
In order to make a piezoelectric vibration energy harvester collect more energy on a broader frequency range, nonlinearity is introduced into the system, allowing the harvester to produce multiple steady states and deflecting the frequency response curve.
Zhang Qichang, Yang Yang, Wang Wei
doaj   +1 more source

Nonlinear Energy Harvesting [PDF]

open access: yesPhysical Review Letters, 2009
Ambient energy harvesting has been in recent years the recurring object of a number of research efforts aimed at providing an autonomous solution to the powering of small-scale electronic mobile devices. Among the different solutions, vibration energy harvesting has played a major role due to the almost universal presence of mechanical vibrations: from
COTTONE, FRANCESCO   +2 more
openaire   +4 more sources

Simultaneous Energy Harvesting and Gait Recognition Using Piezoelectric Energy Harvester [PDF]

open access: yesIEEE Transactions on Mobile Computing, 2022
13 pages, 17 figures, and 2 ...
Dong Ma 0001   +4 more
openaire   +4 more sources

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