Modeling and characterization of piezoelectric transducers by means of scattering parameters. Part I: Theory

Paganelli, Rudi Paolo; Romani, Annalisa; Golfarelli, A.; Magi, Michele; Sangiorgi, Enrico; Tartagni, Marco

doi:10.1016/j.sna.2010.03.006

Cited by 20 publications

(11 citation statements)

References 4 publications

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“…If we consider the input impedance Y IN (ω) of a piezoelectric device, the resonance frequency f S is very close to the frequency f r where Im{Y IN (ω)} = 0, and to the frequency f M where |Y IN (ω)| is maximum. These three frequencies are not clearly distinguished in a Bode plot [29]. Furthermore, manufacturers usually insert PTs in a plastic case that becomes part of the resonant system, with rubber supports that allow the PT to vibrate regardless of the mounting.…”

Section: Piezoelectric Transformersmentioning

confidence: 99%

A 32 mV/69 mV input voltage booster based on a piezoelectric transformer for energy harvesting applications

Curnis

Romani

Macrelli

et al. 2015

Sensors and Actuators A: Physical

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Section: Piezoelectric Transformersmentioning

confidence: 99%

A 32 mV/69 mV input voltage booster based on a piezoelectric transformer for energy harvesting applications

Curnis

Romani

Macrelli

et al. 2015

Sensors and Actuators A: Physical

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“…1 [13], with the primary side modeling the mechanical behavior and the secondary side the electrical one. Energy is transferred from one domain to another through a transformer.…”

Section: A Modelingmentioning

confidence: 99%

“…However, due to the [mite quality factor Q of the inductor, the inversion is not perfect, and is determined by (12), where Vml' and Vinil are the voltages after and before inversion. Some charge Qc is needed to raise Vp to Vb before charging of the battery starts, as in (13). Hence, for a sinusoidal input, energy E flowing into the battery over half the period of input vibration, T12, is given by (14) and the power P by (15).…”

Section: B Synchronous Charge Extractionmentioning

confidence: 99%

Piezoelectric-based broadband bistable vibration energy harvester and SCE/SSHI-based high-power extraction

Singh

Kumar

Weber

2014

Proceedings of the 11th IEEE International Conference on Networking, Sensing and Control

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This paper presents ambient mechanical vibrations as an alternative source for energy harvesting, especially beneficial where alternatives such as light, wind, biomass and thermal energy are limited, e.g., powering underground sensors. Transduction of ambient kinetic energy, e.g., the vibrations from thunder and field work, into electrical energy using piezoelectric generators has been investigated, utilizing a nonlinear bistable broadband piezoelectric harvester. A new model for the bistable piezoelectric harvester is suggested based on the standard Butterworth van Dyke model and its validity demonstrated through simulations. For efficient extraction of the transduced energy, we employ synchronous charge extraction (SCE) and parallel synchronized switch harvesting on inductor (SSHI). The switching in these circuits is implemented using a fully self propelled, low-power electronic breaker circuit, capable of detecting extrema in the input to perform switching. The power outputs from simulation of the bistable harvester have been presented, with the SCE and parallel SSHI providing respective average outputs of 78.51lW and 1251lW for a sinusoidal input of 0.326N at 10Hz applied to a 69.1 x 16.8 x 0.64 mm 3 cantilever (piezoelectric dimensions 35.56 x 14.48 x 0.2 mm 3 ). This shows significant gains over the harvested power reported in literature.

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“…1, in energy harvesting applications piezoelectric transducers are usually coupled with a seismic mass in order to build up a mechanical oscillator. Because of formal analogies between Newton's laws and Kirchoff's laws [3], an equivalent electromechanical circuit such as the one shown in Fig. 2a can model the behavior of a piezoelectric transducer.…”

Section: Equivalent Electromechanical Circuit Of a Piezoelectric mentioning

confidence: 99%

“…In [3] a modeling approach based on an equivalent electro-mechanical circuit with lumped parameters provided reliable results. This approach is also suitable for joint simulations with non linear (e.g.…”

Section: Introductionmentioning

confidence: 99%

Joint modeling of piezoelectric transducers and power conversion circuits for energy harvesting applications

Romani¹,

Sangiorgi²,

Tartagni³

et al. 2011

2011 IEEE SENSORS Proceedings

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Figure 1. (a) Structure of a piezoelectric cantilever beam with a tip mass;(b) a simplified equivalent circuit of a piezoelectric transducer.Abstract-This paper describes a reliable modeling technique for piezoelectric transducers and a procedure for identifying model parameters with few simple measurements and standard laboratory equipment. Direct measurements were taken on commercial Q220-A4-303YB piezoelectric transducers from Piezo Systems in a cantilever configuration with tip masses from 6 g to 18 g. For validation purposes, the behavior of the equivalent electromechanical circuits was simulated and compared to direct observations in real operating conditions. The model showed to predict with a high degree of accuracy both the frequency response of the transducers and the effects due to the presence of non-linear power converters which are usually ignored by conventional models presented in literature.978-1-4244-9289-3/11/$26.00 ©2011 IEEE

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Modeling and characterization of piezoelectric transducers by means of scattering parameters. Part I: Theory

Cited by 20 publications

References 4 publications

A 32 mV/69 mV input voltage booster based on a piezoelectric transformer for energy harvesting applications

A 32 mV/69 mV input voltage booster based on a piezoelectric transformer for energy harvesting applications

Piezoelectric-based broadband bistable vibration energy harvester and SCE/SSHI-based high-power extraction

Joint modeling of piezoelectric transducers and power conversion circuits for energy harvesting applications

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