Synchronized switch harvesting applied to selfpowered smart systems: Piezoactive microgenerators for autonomous wireless transmitters

Guyomar, Daniel; Jayet, Y.; Petit, Lionel; Lefeuvre, Élie; Monnier, Thomas; Richard, Claude; Lallart, Mickaël

doi:10.1016/j.sna.2007.04.009

Cited by 72 publications

(52 citation statements)

References 9 publications

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“…There are two solutions for this problem. The first option is being carried out by Guyomar et al [3], who have developed a technique called Synchronized Switch Harvesting on Inductor (SSHI), which is based on commuting the piezoelectric over an inductor in the moment of maximum electric energy harvested in the piezoelectric. This SSHI technique can be implemented with many configurations, which are called parallel SSHI, series SSHI and Synchronous Electric Charge Extraction (SECE).…”

Section: Fig 1 Generic Energy Harvester System Schematicmentioning

confidence: 99%

Energy generation based on piezoelectric transducers

Ortiz

Zabala²,

Monje³

et al. 2024

RE&PQJ

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Abstract. In this paper, the design, implementation and testing of a prototype for electric energy generation from collecting wasted ambient power sources coming from the mechanic vibrations (Piezoelectric Energy Harvesting PEH) is presented. This prototype has been specifically designed for applications where it is required to connect multiple transducers in order to obtain greater power levels. This design is based on a previous comparative analysis among all the existing auto-harvesting circuits. The prototype has been tested both in laboratory tests as in real field trials on board railway units, with encouraging results. It has been proved that, though achieving power levels of a few milliwatts, its application in the autonomous low-consumption devices powering systems field is a real possibility.

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Section: Fig 1 Generic Energy Harvester System Schematicmentioning

confidence: 99%

Energy generation based on piezoelectric transducers

Ortiz

Zabala²,

Monje³

et al. 2024

RE&PQJ

View full text Add to dashboard Cite

show abstract

“…In this work, a self-powered parallel SSHI circuit has been implemented. As described in [16], the parallel SSHI interface circuit consists in connecting an inductor L p and a switch in parallel with a piezoelectric element. As the membrane displacement reaches an extremum, which translates to a zero current flow, the switch is turned on for a short time.…”

Section: Ac/dc Convertermentioning

confidence: 99%

Coupling Supercapacitors and Aeroacoustic Energy Harvesting for Autonomous Wireless Sensing in Aeronautics Applications

Monthéard

Bafleur

Boitier

et al. 2016

Energy Harvesting and Systems

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Abstract-This paper reports for the first time the experimental demonstration of a wireless sensor node only powered by an aeroacoustic energy-harvesting device, meant to be installed on an aircraft outside skin. Aeroacoustic noise is generated on purpose to serve as a means of converting mechanical energy from high velocity airflow into electrical energy. Results related to the physical characterization of the energy conversion process are presented. The proposed aeroacoustic transducer prototype, consisting in a rectangular cavity fitted with a piezoelectric membrane, is shown to deliver up to 2 mW AC power under Mach 0.5 airflow. Optimized power management electronics has been designed to interface with the transducer, including a self-powered Synchronized Switch Harvesting on Inductor (SSHI) interface circuit and an efficient buck-boost DC/DC converter. The design of micropower auxiliary circuits adds functionality while preserving high efficiency. This circuit stores energy in supercapacitors and is able to deliver a net output DC power close to 1 mW. A fully autonomous system has been implemented and tested, successfully demonstrating aeroacoustic power generation by supplying a battery-free wireless datalogger in conditions representative of an actual flight.

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“…The two-stage power interface is typically composed of the Interfaces 1 and 2. An additional interface, so called "Interface 3", can be used for increasing the power produced by the piezoelectric element, by performing an original non-linear treatment on the piezoelectric element voltage [1,2,4,5,[10][11][12]. The Three-stage power interface thus includes Interfaces 1, 2 and 3.…”

Section: Power Interfacesmentioning

confidence: 99%

“…Moreover, the desired outputs may need to be accurately regulated. Recent works showed also that such interfaces have a strong influence on the energy converted by the piezoelectric materials [1,2,4,5,[10][11][12][13]. Energy conversion cycles of piezoelectric materials using one-stage, two-stage and three-stage power interfaces are presented and compared to a new technique derived from Ericsson thermodynamic cycle.…”

Section: Introductionmentioning

confidence: 99%

Materials, structures and power interfaces for efficient piezoelectric energy harvesting

et al. 2007

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The possibility of recycling ambient energies with miniature electrical generators instead of using batteries with limited lifespan has stimulated important research efforts over the past years. Integration of such miniature generators is mainly envisioned into low power autonomous systems, for various industrial or domestic applications. This paper focuses on the use of piezoelectric materials for generating electrical energy from ambient mechanical vibrations. A review of the piezoelectric materials and the electromechanical structures which have been proposed in this field is first presented. Electrical circuits with one-stage, two-stage and three-stage interfaces which have been developed for optimizing the electrical power flow from piezoelectric devices to energy storage elements are then compared to a novel technique for controlling the energy converted by piezoelectric materials. This novel approach is derived from Ericsson thermodynamic cycle. A solution for practical implementation is proposed, theoretical predictions and experimental results are compared and discussed.

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Synchronized switch harvesting applied to selfpowered smart systems: Piezoactive microgenerators for autonomous wireless transmitters

Cited by 72 publications

References 9 publications

Energy generation based on piezoelectric transducers

Energy generation based on piezoelectric transducers

Coupling Supercapacitors and Aeroacoustic Energy Harvesting for Autonomous Wireless Sensing in Aeronautics Applications

Materials, structures and power interfaces for efficient piezoelectric energy harvesting

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