Comparison of Two Autonomous AC-DC Converters for Piezoelectric Energy Scavenging Systems

Abstract : Piezoelectric Energy Scavenging Systems (PESS) are used to convert the energy of mechanical vibrations into electrical energy exploiting the piezoelectric effect. Their output is a voltage which strongly varies in time; to obtain a suitable supply source an AC-DC conversion of the output voltage of these transducers is needed. Since the output power level of the energy transducer can be very low, the conversion should be as efficient as possible. The paper describes an active AC-DC converter, based on the voltage doubler topology, in which two different driving circuitries have been implemented. The proposed solutions are fully autonomous, i.e. they are supplied by the energy that they harvest. To reduce and to optimize their power consumption a bias circuit has been designed to make the total bias current supply independent. A test chip has been diffused using STMicroelectronics 5V CMOS technology. The performances of the two solutions were compared with the ones of a passive Schottky based voltage doubler. The figures of merit were the average power supplied by the piezoelectric transducer and the average power delivered on a load resistance. Furthermore, the significance of such parameters is also discussed, and a more general figure of merit is defined with the advantage of also weighting the ability of the converter to harvest all the power available at the transducer terminals.
Type de document :
Communication dans un congrès
Christian Piguet; Ricardo Reis; Dimitrios Soudris. 19th IFIP WG 10.5/IEEE International Conference on Very Large Scale Integration (VLSI-SoC), Oct 2008, Rhodes Island, India. Springer, IFIP Advances in Information and Communication Technology, AICT-313, pp.61-80, 2010, VLSI-SoC: Design Methodologies for SoC and SiP. 〈10.1007/978-3-642-12267-5_4〉
Liste complète des métadonnées

Littérature citée [11 références]  Voir  Masquer  Télécharger

https://hal.inria.fr/hal-01054270
Contributeur : Hal Ifip <>
Soumis le : mercredi 6 août 2014 - 10:09:42
Dernière modification le : vendredi 1 décembre 2017 - 01:16:01
Document(s) archivé(s) le : mercredi 26 novembre 2014 - 00:36:03

Fichier

Miatton_Chapter.pdf
Fichiers produits par l'(les) auteur(s)

Licence


Distributed under a Creative Commons Paternité 4.0 International License

Identifiants

Citation

Enrico Dallago, Daniele Miatton, Giuseppe Venchi, Valeria Bottarel, Giovanni Frattini, et al.. Comparison of Two Autonomous AC-DC Converters for Piezoelectric Energy Scavenging Systems. Christian Piguet; Ricardo Reis; Dimitrios Soudris. 19th IFIP WG 10.5/IEEE International Conference on Very Large Scale Integration (VLSI-SoC), Oct 2008, Rhodes Island, India. Springer, IFIP Advances in Information and Communication Technology, AICT-313, pp.61-80, 2010, VLSI-SoC: Design Methodologies for SoC and SiP. 〈10.1007/978-3-642-12267-5_4〉. 〈hal-01054270〉

Partager

Métriques

Consultations de la notice

349

Téléchargements de fichiers

198