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Autonomous CMOS Power Management Integrated Circuit for Electrostatic Kinetic Energy Harvesters e-KEH

Abstract : In this paper we present an autonomous Power Management Integrated Circuit PMIC for an electret-biased electrostatic kinetic energy harvester with a Bennet's doubler conditioning circuit. The circuit is designed in high voltage 0.35 μm standard bulk CMOS technology. It supplies a low voltage load from the energy extracted from a high voltage transducer. The circuit is provided with a "cold start" mechanism and with a "safe mode" (Recovery) feature that permits to the system to stay active (awake) for a longer time after external vibrations stop temporarily. An ultra-low static power hysteresis comparator is designed for a specific control of the capacitive transducer's conditioning circuit. The autonomy of the system is ensured by a voltage regulator that supplies the internal blocks of the circuit with 1.1 V. The proposed design consumes less than 400 nW making it adequate for use with existing state-of-the art capacitive harvesting MEMS devices.
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https://hal.archives-ouvertes.fr/hal-02471284
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Submitted on : Friday, February 7, 2020 - 9:33:46 PM
Last modification on : Tuesday, June 2, 2020 - 7:36:04 AM
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Abdelkrim Bessaad, Amine Rhouni, Philippe Basset, Dimitri Galayko. Autonomous CMOS Power Management Integrated Circuit for Electrostatic Kinetic Energy Harvesters e-KEH. 26th IEEE International Conference on Electronics, Circuits and Systems (ICECS 2019), Nov 2019, Genoa, Italy. pp.338-341, ⟨10.1109/ICECS46596.2019.8964736⟩. ⟨hal-02471284⟩

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