نتایج جستجو برای: energy harvester

تعداد نتایج: 667855  

2011
C. Cepnik

This paper introduces and compares different benchmark parameters for the performance of electromagnetic energy harvesters, including the bottom-up (power according to the harvester model) as well as the top-down view (maximum power that can be generated within a volume) and considering the dependency and scaling of geometrical and physical parameters, such as the mechanical damping. The compar...

2012
Seunghyun Oh David D. Wentzloff

This paper discusses a RF power harvester optimized for sensitivity and therefore wireless range, for applications requiring intermittent communication. The RF power harvester produces a 1V output at -32dBm sensitivity and 915MHz. This is achieved using a CMOS rectifier operating in the subthreshold region and an off-chip impedance matching network for boosting the received voltage. Equations p...

Journal: :IEEE Internet of Things Journal 2016
Raul Gomez Cid-Fuentes Albert Cabellos-Aparicio Eduard Alarcón

Multi-source energy harvesters is a promising, robust alternative to power the future Internet of nano things (IoNT), since the network elements can maintain their operation regardless of the fact that one of its energy sources might be temporarily unavailable. Interestingly, and less explored, when the energy availability of the energy sources present large temporal variations, combining multi...

Journal: :journal of computational applied mechanics 0
rouhollah hosseini islamic azad university, south tehran branch maryam nouri young researchers and elite club

the most promising method for micro scale energy scavenging is via vibration energy harvesting which converts mechanical energy to electrical energy by the effect of coupling between electric fields and mechanical variables. using piezoelectric cantilevers is the most common method for vibration energy harvesting. changing the shape of the cantilevers can lead to changing the generated output v...

2015
DIDI LIU JIMING LIN JUNYI WANG YUXIANG SHEN YIBIN CHEN

Optimal energy scheduling problem for single-user wireless communication system in fading channel is studied in this paper. In this schedule, the transmitter is powered by hybrid energy sources including both the conventional grid and an energy harvester collecting energy from nature and storing energy in a rechargeable battery. In this system, data arrival process, energy harvesting process an...

2014
M. A. Pillai D. Ezhilarasi

In acoustic energy, harvesting energy is captured from external noise sources, controlled and stored for various applications. Despite the prevalence of acoustic energy a major challenge of energy harvesting is the low power density. Acoustic Energy Harvester consists of a resonator, an acoustic transducer and a storage device. When acoustic resonator is excited by an incident wave at its reson...

2015
Meriam Gay Bautista Eryk Dutkiewicz Michael Heimlich

This paper reviews the state-of-art of the subthreshold level design energy harvesters for powering biomedical implants. Power consumption and lifespan are crucial requirements for the electronic circuitry of implantable systems. In order to meet these challenging requirements, a design for an energy harvester that operates in a subthreshold level offers a promising solution.

2016
Bogdan Vysotskyi Fabien Parrain Denis Aubry Philippe Gaucher Elie Lefeuvre

The purpose of the presented work is to introduce the novel design of electrostatic energy harvester using bistable mechanism with compensational springs in gravity field capable of providing the output of several μW under the excitation of extremely small amplitude (up to 0.2g) and low frequency (10-100Hz). Presented energy harvester uses the bistable hysteresis modification to achieve low-fre...

2011
Hui Huang Geoff V. Merrett Neil M. White

Inertial energy harvesting is an emerging technology that can power electronic devices using energy scavenged from the motion of the human body. Owing to the relatively low frequencies associated with body motion (<3 Hz), the generated electrical power is typically in the range of a few μW; hence transduction must be optimized. Previous studies have investigated the effect of activity and harve...

2016
Levent Beker Ben Eovino Arnau Benet Albert P. Pisano Liwei Lin

This paper describes the design, fabrication and testing results of aluminum nitride piezoelectric micromachined circular diaphragm energy harvesters with concentric ring-boss structures to convert pulsed pressure to electrical power with high efficiency. Compared to the state-of-the-art, the concentric-ring-boss harvesters (CRBH) produce multiple strained regions for: (1) more effective electr...

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