Highly-efficient wireless and batteryless switches for home automation

Sebastien Boisseau (1, 2) , Olivier Tosoni (3) , Gerard Delette (3) , Marc Bohnke (3) , Baptiste Alessandri (4) , Ghislain Despesse (1, 2)

1 CEA-LETI - Commissariat à l'énergie atomique et aux énergies alternatives - Laboratoire d'Electronique et de Technologie de l'Information
2 DSYS - Département Systèmes
3 DTNM - Département des Technologies des Nouveaux Matériaux (Ex Département des Technologies des NanoMatériaux)
4 Davidson S.A. (Grenoble)

This paper reports on a highly-efficient electromagnetic energy harvester for wireless and batteryless switches. The energy harvester relies on a central rotating magnet driven by magnetic launchers and combined with a ferromagnetic circuit to take advantage of nonlinear behaviors and to increase the electromechanical conversion efficiency. The experimental output energy reaches 1.235mJ (350µJ/cm³) with a conversion efficiency of 56%, making it one of the most powerful and the most efficient in the state of the art.

Domaines: Energie électrique; Electronique

Sebastien Boisseau, Olivier Tosoni, Gerard Delette, Marc Bohnke, Baptiste Alessandri, et al.. Highly-efficient wireless and batteryless switches for home automation. JNRSE 2021 - 10th National Days on Energy Harvesting and Storage, Jun 2021, Grenoble (E-Conference), France. ⟨cea-03249096⟩