Philippe Basset

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This paper presents an analysis, behavioral modeling and functional design of a capacitive vibration energy harvester, composed from a mechanical resonator, capacitive transducer and a conditioning circuit based on the BUCK DC-DC converter architecture. The goal of the study is to identify the optimal scenario of the BUCK switch commutation and to propose a(More)
—This paper reports on a new approach for the analysis and design of vibration-to-electricity converters [vibration energy harvesters (VEHs)] operating in the mode of strong electro-mechanical coupling. The underlying concept is that the mechanical impedance is defined for a nonlinear electromechanical transducer on the basis of an equivalence between(More)
This paper reports on an investigation of dynamic behavior of an electrostatic Vibration Energy Harvester (e-VEH) which uses gap-closing capacitive transducers and operates in a constant-charge mode. This work provides a deep insight into stability issues of a e-VEH investigating four dynamic modes, among which only one corresponds to a regular, stable and(More)
—This letter deals with an innovative design for a silicon MEMS dc/dc converter, to be used in autonomous mechanical-energy scavengers, based on electrostatic transduction. The device is made of bulk silicon and is fabricated using a batch process. It is 27 mm 3 in volume and resonates at 250 Hz. We demonstrate a net vibration-to-electricity power(More)
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— In this paper, we present an analysis of an electro-static vibration harvester operating in the constant-charge mode. The goal of the study is to bound regions of control parameters where the system displays steady-state harmonic oscillations as required for practical use. We show how the system can be presented as a nonlinear oscillator and analysed(More)
This paper reports a new functional design and modeling of a vibration energy harvester composed from a mechanical resonator (MEMS), capacitive transducer and a conditioning circuit based on the BUCK DC-DC converter architecture. The basic configuration of conditioning circuit from [1][2] is enhanced with two major features for the power management(More)
This paper presents a simple analytical method to optimize the efficiency of two types of electrostatic Vibration Energy Harvesters (VEH): the out-of-plane (OPGC) and in-plane (IPGC) gap-closing converters. The electrical and mechanical behaviours of the transducer are addressed simultaneously, while a voltage limitation on the transducer's terminals is set(More)
This paper presents the results of modeling of a mixed non-linear, strongly coupled and multidomain electromechanical system designed to scavenge the energy of ambient vibrations and to generate an electrical supply for an embedded microsystem. The system is operating in three domains: purely mechanical (the resonator), coupled electromechanical(More)