Modelling and analysis of vibration energy harvesters with charge pump conditioning circuits

Abstract : Vibration energy harvesting is a technique for the generation of electricity from ambient vibrations. Electrostatic vibration energy harvesters (e-VEHs) are particularly compatible with microtechnology and can serve as a source of energy for autonomous microsystems. E-VEHs require conditioning electronics to effectively sequence different phases of energy conversion. One of the most promising circuits for e-VEHs is the charge pump, presented here with a resistive return circuit. E-VEH as a system is composed of a mechanical resonator coupled with a conditioning circuit and is strongly nonlinear. We discuss different models of this system and show how steady-state oscillations of the system can be analysed. In order to do so, the system is represented as a nonlinear oscillator and a perturbation technique, such as the multiple scales method, can be applied.
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Contributor : Dimitri Galayko <>
Submitted on : Saturday, May 13, 2017 - 11:06:01 AM
Last modification on : Thursday, March 21, 2019 - 2:34:12 PM

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Eoghan O'Riordan, Elena Blokhina, Orla Feely, Dimitri Galayko. Modelling and analysis of vibration energy harvesters with charge pump conditioning circuits. Circuits and Systems (ISCAS), 2014 IEEE International Symposium on, Jun 2014, Melbourne VIC, Australia. ⟨10.1109/ISCAS.2014.6865368⟩. ⟨hal-01522176⟩

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