High-voltage low power analogue-to-digital conversion for adaptive architectures of capacitive vibration energy harvesters

Abstract : This paper presents a design and modeling of a block allowing converting a high voltage into a digital code which is used in a smart adaptive conditioning circuit to calibrate an electrostatic harvester for vibration energy. A smart energy management in the harvester is needed to achieve an optimal conversion of the vibration energy. This block is achieved with a successive approximation analogue-to-digital converter (SA ADC) and a voltage divider to reduce the voltage applied on the ADC. The design is done in Austrian Microsystem CMOS035HV technology. This study is validated by VHDL-AMS/ELDO modeling for the harvester, the divider and the harvester.
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Raouf Khalil, Andrii Dudka, Dimitri Galayko, Philippe Basset. High-voltage low power analogue-to-digital conversion for adaptive architectures of capacitive vibration energy harvesters. 10th International Workshop on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (PowerMEMS 2010), Nov 2010, Louvain, Belgium. pp.147-150. ⟨hal-00590733⟩

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