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![Abdelkrim Bessaad Headshot](https://confcats-catavault.s3.amazonaws.com/CATAVault/ieeecass/master/files/styles/cc_user_photo/s3/user-pictures/21451.jpg?h=2c4e73f8&itok=KavrA6AT)
- Affiliation
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AffiliationSorbonne Université
- Country
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 0.35μm 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 measured end-to-end efficiency of the implemented system is 55% when the available input power was of 21 uW.