Wideband electrostatic Vibration Energy Harvester (e-VEH) having a low start-up voltage employing a high-voltage integrated interface

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Title: Wideband electrostatic Vibration Energy Harvester (e-VEH) having a low start-up voltage employing a high-voltage integrated interface
Authors: Dudka, Andrey
Basset, Philippe
Cottone, Francesco
Blokhina, Elena
Galayko, Dimitri
Permanent link: http://hdl.handle.net/10197/5400
Date: Dec-2013
Abstract: This paper reports on an electrostatic Vibration Energy Harvester (e-VEH) system, for which the energy conversion process is initiated with a low bias voltage and is compatible with wideband stochastic external vibrations. The system employs the auto-synchronous conditioning circuit topology with the use of a novel dedicated integrated low-power highvoltage switch that is needed to connect the charge pump and flyback - two main parts of the used conditioning circuit. The proposed switch is designed and implemented in AMS035HV CMOS technology. Thanks to the proposed switch device, which is driven with a low-voltage ground-referenced logic, the e-VEH system may operate within a large voltage range, from a pre-charge low voltage up to several tens volts. With such a high-voltage e-VEH operation, it is possible to obtain a strong mechanical coupling and a high rate of vibration energy conversion. The used transducer/resonator device is fabricated with a batch-processed MEMS technology. When excited with stochastic vibrations having an acceleration level of 0.8 g rms distributed in the band 110-170 Hz, up to 0.75 μW of net electrical power has been harvested with our system. This work presents an important milestone in the challenge of designing a fully integrated smart conditioning interface for the capacitive e-VEHs.
Funding Details: Science Foundation Ireland
Type of material: Conference Publication
Publisher: IOP Publishing
Keywords: Electrostatic vibration energy harvesterAccelerators, beams and electromagnetismElectronics and devicesInstrumentation and measurementSemiconductorsNanoscale science and low-D systems
DOI: 10.1088/1742-6596/476/1/012127
Language: en
Status of Item: Peer reviewed
Is part of: Journal of Physics: Conference Series, Volume 476 conference 1
Conference Details: PowerMEMS, The 13th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications, 3-6 December, London, UK
Appears in Collections:Electrical and Electronic Engineering Research Collection

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