Temperature threshold tuning of a thermal harvesting switch

Autor: Skandar Basrour, Louis Carlioz, Jérôme Delamare
Přispěvatelé: Techniques of Informatics and Microelectronics for integrated systems Architecture (TIMA), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Laboratoire de Génie Electrique de Grenoble (G2ELab), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Techniques de l'Informatique et de la Microélectronique pour l'Architecture des systèmes intégrés (TIMA), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)
Rok vydání: 2009
Předmět:
Zdroj: Proc. of The 15th International Conference on Solid-State Sensors, Actuators and Microsystems (Transducers'09)
The 15th International Conference on Solid-State Sensors, Actuators and Microsystems (Transducers'09)
The 15th International Conference on Solid-State Sensors, Actuators and Microsystems (Transducers'09), Jun 2009, Denver,Colorado, United States. pp.1385-1388, ⟨10.1109/SENSOR.2009.5285830⟩
DOI: 10.1109/sensor.2009.5285830
Popis: ISBN 978-1-4244-4190-7; International audience; This paper presents an original energy harvester making use of a temporal variation of temperature and converting it to electricity. Such a device combines piezoelectric and magnetic materials in order to be able to react to small and slow variations of temperature. Therefore it can be integrated for powering nodes in a wireless sensor network. We report here how to tune the behavior of such generator. By modifying the gap between the hard magnet and the soft magnetic material, it is possible to finely control the hysteresis between the two thresholds but also the position of those thresholds. Finally, like for the electrical load, there is an optimal gap which allows the harvesting of a maximum power.
Databáze: OpenAIRE