Design and test of a Bennet's doubler device with mechanical switches for vibrational energy harvesting - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Année : 2016

Design and test of a Bennet's doubler device with mechanical switches for vibrational energy harvesting

Résumé

In this work, we demonstrate that the use of self-synchronized mechanical switches in replacement of diodes into electrostatic vibration energy harvesters (e-VEH) can lead to better power generation. Indeed, mechanical switches have the advantage of no leakage current and no threshold voltage. As a proof of concept, we use the Bennet's doubler electrostatic generator. The proposed e-VEH is composed of two variable capacitors triggered by a central electrode taken as an inertial mass. Ambient vibrations induce inertial forces on the central electrode, as a result a voltage doubling is obtained at each operating cycle. The mechanical switches are directly fixed to the moving electrode. In addition, no dedicated pre-charge is required: the system starts with ambient electrical charges. The device is fabricated and tested under harmonic motion. A comparison between the proposed design and those using diodes under the same operating conditions shows an experimental direct increase of the harvested electrical power of around 28%.
Fichier principal
Vignette du fichier
Ouanes_2016_J._Phys. _Conf._Ser._773_012038.pdf (2.09 Mo) Télécharger le fichier
Origine : Publication financée par une institution
Licence : CC BY NC ND - Paternité - Pas d'utilisation commerciale - Pas de modification

Dates et versions

hal-01769270 , version 1 (26-06-2023)

Licence

Paternité - Pas d'utilisation commerciale - Pas de modification

Identifiants

Citer

M. Ouanes, Yingxian Lu, H. Samaali, Philippe Basset, F. Najar. Design and test of a Bennet's doubler device with mechanical switches for vibrational energy harvesting. 16th International Workshop on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (PowerMEMS’16), Dec 2016, Paris, France. ⟨10.1088/1742-6596/773/1/012038⟩. ⟨hal-01769270⟩
51 Consultations
5 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More