Performance evaluation of different rectifiers for Piezo-electric energy harvesting applications

Grâce, Erwan; Rajan, S. Edward; Asis, A. Allwyn Clarence

doi:10.1109/iconraeece.2011.6129810

Cited by 9 publications

(7 citation statements)

References 7 publications

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“…The switches are implemented through two MOS transistors driven by the output of a comparator that reads the derivative of the piezoelectric voltage, in order to catch the peak and let the inductor to discharge the parasitic capacitance [131]. …”

Section: Conditioning Circuitrymentioning

confidence: 99%

Piezoelectric Energy Harvesting Solutions

Caliò

Rongala

Camboni

et al. 2014

Sensors

346

197

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This paper reviews the state of the art in piezoelectric energy harvesting. It presents the basics of piezoelectricity and discusses materials choice. The work places emphasis on material operating modes and device configurations, from resonant to non-resonant devices and also to rotational solutions. The reviewed literature is compared based on power density and bandwidth. Lastly, the question of power conversion is addressed by reviewing various circuit solutions.

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Section: Conditioning Circuitrymentioning

confidence: 99%

Piezoelectric Energy Harvesting Solutions

Caliò

Rongala

Camboni

et al. 2014

Sensors

346

197

View full text Add to dashboard Cite

show abstract

“…Biomedical implanted devices help in performing a number of tasks efficiently such as the collection of data from different body parts for monitoring purposes and to rejuvenate the lost functionality of organs by stimulating the muscular tissues [5][6]. The stimulation of tissues by 1 To whom any correspondence should be addressed.…”

Section: Introductionmentioning

confidence: 99%

A Comparative Study of Small Voltage Rectification Circuits for Implanted Devices

Haider¹,

Mansor

Khan

et al. 2013

IOP Conf. Ser.: Mater. Sci. Eng.

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Biomedical implants have acquired an invulnerable and significant importance over the recent years due to their low voltage requirements and trifling dimensions. Biomedical implants are being widely employed for the continuous monitoring of intended parameters as well as stimulation of target organs in patient's body. Being low power devices, the continuous powering without using battery dependent sources necessitates the alternative sources such as energy harvesting from the surroundings. Harvested output needs to be processed before using it for powering purposes, particularly in harsh and challenging premises. Even after processing, it needs to be made robust against the contiguous hazards so that maximum power is transferred to the load. A rectifier is employed to make this harvested energy usable. This paper compares the rectifier circuits, comparing their simulation output in terms of regulation, stability and power transferred. The rectification of small voltages is usually confronted by the threshold voltage drops that affect the output causing an effective drop in the power transfer efficiency and other parameters related. The solution to this problem has been suggested comparing the previous approaches with some modifications. Obtained results have been plotted in terms of ripple factor comparing them with the analytical calculations in order to show the role of capacitance in the reduction of ripple factor.

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“…This method for harvesting power by direct connection to a load is the least ecient method. This method also generates inverting and often high voltages and low currents which make them dicult to adapt to lower voltage and higher direct current loads such as LED lighting or low power sensors [35].…”

Section: Brief History Of Harvesting Circuitrymentioning

confidence: 99%

“…Typically the DC -DC converter chosen is a buck converter. Modeling the piezoelectric material subjected to strain can be done by representing the material as a current source with an internal capacitance caused by the electrodes [35]. Because of this, it is benecial to allow the piezo material to reach a higher voltage and then step the voltage down.…”

Section: Brief History Of Harvesting Circuitrymentioning

confidence: 99%

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Novel Structural Design of a Piezo Transducer for Roadway Power Harvesting Applications

Louter¹

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The roadway power harvesting project was started to design and produce a working prototype of a piezoelectric based power harvester for applications in vehicle power harvesting. The system is composed of a rubber speed bump with arrays of piezoelectric transducers. The transducers are connected to power harvesting circuitry which can capture and store energy generated by the transducers and deliver it at a specic voltage to an arbitrary load application. This thesis focuses on the hardware aspect of the project, more specically the design and fabrication and experimental validation of a novel piezoelectric transducer that incorporates both radial slits with circumferential preloading of each transducer in order to improve power generation from each transducer. The designs undergo nite element analysis for appropriate parameter determination and prototypes are tested to conrm the nite element analysis conclusions. Finally the fully constructed system is tested both on a hydraulic loading machine and with a road vehicle and determined to have a 113 % improvement in peak voltage generation over a conventional cymbal transducer design with similar parameters. To Amy. Somewhere, something incredible is waiting to be known.-Carl Sagan iii This project couldn't have been completed as is without the encouragement, support, and guidance of my supervisors Professor Junjie Gu and Professor Jie Liu. I would like to thank the help of my research partner, Xinghe, for his hard work on the circuitry component of the project as well as a great help in bouncing ideas o of and pointing out potential aws. A special thanks to Ebrahim Desai who sparked the project and without his support, would not have been possible. I would also like to thank all the lab technicians and professionals who helped in many of the prototype construction and testing phases, namely Alex Proctor, Kevin Sangster, Ian Lloy, and David Raude among others. And nally I would like to thank my parents for supporting me the whole way, and nurturing my interests in science and technology.

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Performance evaluation of different rectifiers for Piezo-electric energy harvesting applications

Cited by 9 publications

References 7 publications

Piezoelectric Energy Harvesting Solutions

Piezoelectric Energy Harvesting Solutions

A Comparative Study of Small Voltage Rectification Circuits for Implanted Devices

Novel Structural Design of a Piezo Transducer for Roadway Power Harvesting Applications

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