Study of a Low-Power-Consumption Piezoelectric Energy Harvesting Circuit Based on Synchronized Switching Technology

Hong, Jianfeng; Fu, Chen; He, Ming; Wang, Sheng; Chen, Wenxiang; Guan, Mingjie

doi:10.3390/en12163166

Cited by 13 publications

(9 citation statements)

References 24 publications

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“…Synchronized Switch Harvesting architectures reuse the own charge of C peh to invert the polarity of V peh upon I peh zerocrossing. They employ either an inductor (SSHI) (Sanchez et al [4], Du et al [16], Ramadass and Chandrakasan [17], Wu et al [18], Chamanian et al [19,20]) or a set of capacitors (SSHC) ( Chen et al [2], Du and Seshia [3], Chen et al [21], Hong et al [22]) to store the charge of C peh temporarily before sending it back once the electrodes of the PT have been swapped. Architectures combining both an inductor and a capacitor have also been reported in Çiftci et al [23] and Çiftci et al [1].…”

Section: Introductionmentioning

confidence: 99%

Voltage Flip Efficiency Enhancement for Piezo Energy Harvesting

Frick

Jamshidpour

2021

Electronics

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In this paper, we analyze the effect of an enhanced voltage flip technique on the power performance of a piezoelectric energy harvester. The enhanced voltage flip principle is based on a synchronized-switch-based architecture, and is referred to as FAR (Full Active Rectifier). It uses a tiny amount of the stored charge to boost the voltage flip. This work aims to demonstrate that, beside the enhanced flip efficiency, the FAR also contributes to improve the power efficiency of the harvester, especially under changing load constraint. Therefore, the paper proposes a thorough comparison between the FAR and its conventional counterpart, the Switch-only technique. The FAR is easy to implement and does not require any external inductor or capacitor. It only needs a reduced set of switches, an active diode and a simple control sequence, and can thus be implemented on a fully integrated circuit. The FAR can be used as a standalone voltage flip solution or in addition to further boost the flip efficiency in a state-of-the-art architecture such as SSHC for example. Tests were performed on a 0.35-µm process CMOS prototype IC. Experimental results revealed that the FAR extracts 19.1μW from an off-the-shelf piezoelectric transducer when the output voltage is regulated at 1V with 1 V open-circuit voltage and delivers up to 20% more power than the conventional Switch-only technique under load constraint. It also shows over 11× power efficiency improvement compared to a conventional diode-based full bridge rectifier.

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Section: Introductionmentioning

confidence: 99%

Voltage Flip Efficiency Enhancement for Piezo Energy Harvesting

Frick

Jamshidpour

2021

Electronics

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“…The pressure exerted on the model causes a deflection, which leads to a linear electromagnetic interaction of the mechanical and electrical parts. Therefore, some parts of the material become positively charged, while others consist of negative electrodes, which cause the accumulation of an electric charge on the piezoelectric section [1]. Therefore, the greater the pressure applied, the greater the voltage and electric current generated by this piezoelectric material [3,7].…”

Section: Resultsmentioning

confidence: 99%

“…This phenomenon was discovered by the Curie brothers in 1880, by observing the semiconductor crystals that generated electricity due to the presence of external mechanical stress. The linear electromagnetic interaction of mechanical and electrical parts in the piezoelectric crystal material forms the positive and negative parts of the electrodes, which causes an accumulation of electric charges [1]. Furthermore, the deflection (direct piezoelectric) and the vibrations were produced by the electricity which comes from the pressure, pull, or vibration applied to the piezoelectric material [2].…”

Section: Introductionmentioning

confidence: 99%

Piezoelectric Configuration for Generating Electricity Using Waves Power

2021

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This study is aimed at determining the piezoelectric configuration for generating electricity from wave power through the design of a prototype model named Cov-TOTal. The study was carried out in Tomini Bay, Lopo Village, Batudaa Pantai District, Gorontalo Regency, located at approximately ±50 meters from the shoreline, while the piezoelectric construction was arranged in parallel with varying numbers of 28, 70, and 90 pieces. The result showed that the amount of piezoelectric configuration affects the value of the voltage and electric current generated by the Cov-TOTal model. Furthermore, the average electric voltage values were 17.58, 20.76, and 29.85 volts, while the average current was 1.16, 1.73, and 2.01 mA for each piezoelectric amount. Therefore, the largest values of power and electrical energy for each piezoelectric are 16.65 mW and 0.56 joules, 31.82 mW and 1.20 joules, and 44.59 mW and 1.77 joules, respectively. This study concluded that the amount of piezoelectric configuration has a significant effect on the voltage, current, power, and electrical energy produced.

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“…Another much explored technique to boost the performance is the interfacing of the piezoelectric devices with the power processing circuits. Several researchers have reported that the power from the piezoelectric elements can be enhanced up to 900% using power processing circuits such as synchronized switch harvesting 36‐38 . However, the polarization of the piezoelectric material has attracted the attention from researcher in the recent years, as a probable way to tailor and/or enhance the performance of these materials.…”

Section: Introductionmentioning

confidence: 99%

“…Several researchers have reported that the power from the piezoelectric elements can be enhanced up to 900% using power processing circuits such as synchronized switch harvesting. [36][37][38] However, the polarization of the piezoelectric material has attracted the attention from researcher in the recent years, as a probable way to tailor and/or enhance the performance of these materials. Yang et al 39 employed the combination of domain engineering and defect engineering by strategically controlling the poling process.…”

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confidence: 99%

Deciphering the importance of graded poling in piezoelectric materials: A numerical study

Kiran

Kumar

Sharma

et al. 2020

Engineering Reports

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Piezoelectric materials play an important role in powering nano and microelectromechanical systems. However, these are often limited by their low sensing, actuation, and power outputs. This study proposes a novel poling direction arrangement theoretically in the piezoelectric materials which enhances the output parameters drastically. The poling angle was graded from bottom to top surface of element in linear fashion which helps in utilizing the bending and shear stresses efficiently. The sensing, actuation and energy harvesting performance of Pb[Zr x Ti 1-x ]O 3 in graded mode was compared with those obtained from operating in transverse and shear modes. It was found from finite element simulations that a maximum sensing voltage of 11.85 V was been obtained in graded mode which was around 15 times higher than that obtained in shear mode. Likewise, a maximum strain of 8.2 μm/m and a tip displacement of 34.3 μm was observed in the graded mode. Eventually, the maximum power of 0.12 W was harvested from graded mode harvester followed by shear mode harvester where only : 1.6 × 10 −3 W could be harvested. However, the associated challenge with such study is the fabrication and graded poling of piezoelectric which still is an unexplored research area for scientific fraternity. K E Y W O R D S graded poling, piezoelectricity, shear mode, transverse mode 1 INTRODUCTION Since the discovery of piezoelectric materials, researchers, and scientists have carried out extensive research to understand the origin and implication of the piezoelectric effect. 1-4 Research community has shown great interest in these materials due to their inherent ability to convert mechanical strain into electric potential and vice versa. 5-8 Thereby, these materials have seen a huge application in the field of sensors, filters, accelerators, and so on. In particular, till date, the piezoelectric materials have been widely employed for sensing, actuation, and energy harvesting applications. 9-15 Though significant research has been carried out in this field still the performance of piezoelectric materials is often limited by several factors 16-21 and there is always a need to enhance it for sensing, actuation, and energy harvesting applications. From literature review, it is found that for aforementioned applications, piezoelectric materials are attached to a cantilever beam acting as a host structure. 22-24 In most of the studies, the mode of operation for piezoelectric materials has This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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Study of a Low-Power-Consumption Piezoelectric Energy Harvesting Circuit Based on Synchronized Switching Technology

Cited by 13 publications

References 24 publications

Voltage Flip Efficiency Enhancement for Piezo Energy Harvesting

Voltage Flip Efficiency Enhancement for Piezo Energy Harvesting

Piezoelectric Configuration for Generating Electricity Using Waves Power

Deciphering the importance of graded poling in piezoelectric materials: A numerical study

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