Optimization and AMS modeling of capacitive vibration harvester

Dimitri Galayko (1) , Rodrigo Pizarro , Philippe Basset , Ayyaz Mahmood Paracha , Gilles Amendola

1 CIAN - Circuits Intégrés Numériques et Analogiques

This paper presents optimization, design and modeling of a conditionning circuit of a vibrational energy harvester with capacitive electromechanical transducer. The conditionning circuit is inspired from the Buck DC-DC converter architecture, and composed from a charge pump and a flyback circuit. We found that the switching should be ordered by the internal state of the circuit, an not by some fixed timing scenario. The paper presents how to find the optimal operation mode of the harvester. To validate the study, the system was modeled using a mixed VHDL-AMS - ELDO model.

Domaines: Informatique [cs]

Dimitri Galayko, Rodrigo Pizarro, Philippe Basset, Ayyaz Mahmood Paracha, Gilles Amendola. Optimization and AMS modeling of capacitive vibration harvester. PowerMEMS Workshop on Micro and Nanotechnology for Power Generation and Energy Conversion Applications, Nov 2007, Freiburg, Germany. pp.109-112. ⟨hal-01305978⟩