Power amplification interface circuit for broadband piezoelectric energy harvester

Asthana, Prateek; Khanna, Gargi

doi:10.1016/j.mejo.2020.104734

Cited by 12 publications

(5 citation statements)

References 18 publications

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“…Aspect ratio is the structure thickness ratio, and the finger spacing distance. Energy harvesting methodologies may be utilised to provide the power requirements for the proposed device [26][27][28][29].…”

Section: Resultsmentioning

confidence: 99%

Variation of Sensitivity of a MEMS Capacitive Accelerometer Based Microphone with Suspension System Topology

Dwivedi¹,

Asthana²,

Khanna³

et al. 2021

Hearing Loss - From Multidisciplinary Teamwork to Public Health

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The present research seeks to improve a highly sensitive MEMS capacitive accelerometer as a probable completely implantable hearing aid microphone. The research analyses the effect of different suspension system topologies on accelerometer efficiency. The topology of folded beam suspension is considered to be the most suitable for the proposed system. The design factors such as weight, height and resonant frequency are considered to make the accelerometer an effective biomedical system which can be completely implanted with COMSOL MULTIPHYSICS 4.2 the optimized system is simulated and validated. The accelerometer occupies 1mm2 of sensing area and achieves a nominal capacitance of 5.30 pF and an optimized capacitive sensitivity of 6.89fF.

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Section: Resultsmentioning

confidence: 99%

Variation of Sensitivity of a MEMS Capacitive Accelerometer Based Microphone with Suspension System Topology

Dwivedi¹,

Asthana²,

Khanna³

et al. 2021

Hearing Loss - From Multidisciplinary Teamwork to Public Health

Self Cite

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“…Due to its superior performance, the single-phase bridge circuit is one of the most commonly used rectifier circuits and is preferred in many cases where there is no obstacle to its use. In addition, there are a large number of example circuits that partially or fully use the bridge rectifier circuit [49][50][51][52][53]. For some circuits, the bridge rectifier is partially used to form AC-to-DC electronic converters [24,50,51,53].…”

Section: Bridge Rectifiermentioning

confidence: 99%

Analysis of the Methods for Realization of Low-Power Piezoelectric Energy Harvesting Circuits for Wearable Battery-Free Power Supply Devices

Pandiev,

Tomchev,

Kurtev

et al. 2024

Applied Sciences

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This paper presents a comprehensive review of the design and implementation methods of low-power piezoelectric energy harvesting circuits, which in the last few years have gained an extremely large range of applications like the power sources of wearable electronic devices, such as biometrical sensors. Before examining the electronic circuitries of the self-supplied power devices, an overview of the structure, equivalent electrical circuits, and basic parameters of the piezoelectric generators and MEMSs as energy harvesting elements is presented. The structure of energy storage elements (parallel-plate capacitors and thin-film supercapacitors), suitable for this type of application, is also presented. The description of these components from an electrical point of view allows them to be easily workable when connected to the various power conversion electronic circuits. Based on an overview of the structure and the principles of operation, as well as some analytical expressions for energy efficiency evaluation, a comprehensive comparative analysis is presented. Depending on the advantages and disadvantages of the known circuit configurations, the basic electrical and design parameters are systematized in tabular form. Practical realizations of piezoelectric power conversion circuits are also presented in graphic form, ensuring the optimal value of energy efficiency and compactness in the construction of the devices.

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“…The power management circuit (PMC) is a critical component of a piezoelectric energy harvesting system because it regulates both utilisation of harvested energy and storage. The PMC serves two crucial functions: first, converting the harvester-produced alternating current (AC) in the form of direct current (DC), and second, matching the impedance of the harvester to make maximum power output (Asthana and Khanna, 2020). Piezoelectric energy harvesting systems (Alghisi et al, 2017; Chen et al, 2017a; Khan et al, 2019) discussed a single – multi-source battery-less, low-power and energy extraction enhancement power management circuit, respectively.…”

Section: Reviewmentioning

confidence: 99%

Recent advancements in piezoelectric energy harvesting for implantable medical devices

Upendra,

Panigrahi,

Singh

et al. 2023

Journal of Intelligent Material Systems and Structures

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Biomedical implantable devices like deep brain stimulators, implantable cardioverter-defibrillators and cardiac pacemakers are essential for treating the human heart and brain-related diseases. In the past few decades, a considerable amount of research has focused on improving bio-implant technologies. Conventional bio implant devices consist of an external generator like a battery to power the system, which requires replacement after a particular time. Therefore, in recent years, self-powered implants with various energy harvesting techniques have been proposed to avoid frequent surgery for battery replacement and to miniaturise the implant systems. However, the research communities have yet to explore all the limitations and possibilities of improvement on such energy-scavenging technologies, especially when the application is in vivo. Several aspects of recent developments in energy harvesting technologies feasible for biomedical implantable devices are reported systematically. A detailed review of piezoelectric energy harvester mechanism and miniaturisation, electric output and power management and biocompatibility of an energy harvester for implantable medical devices in vitro and in vivo environments. Furthermore, the piezoelectric energy harvester’s durability, packaging material, connection and evaluation criteria are discussed.

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Power amplification interface circuit for broadband piezoelectric energy harvester

Cited by 12 publications

References 18 publications

Variation of Sensitivity of a MEMS Capacitive Accelerometer Based Microphone with Suspension System Topology

Variation of Sensitivity of a MEMS Capacitive Accelerometer Based Microphone with Suspension System Topology

Analysis of the Methods for Realization of Low-Power Piezoelectric Energy Harvesting Circuits for Wearable Battery-Free Power Supply Devices

Recent advancements in piezoelectric energy harvesting for implantable medical devices

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