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Micromachines (Basel) ; 11(10)2020 Oct 15.
Article in English | MEDLINE | ID: mdl-33076268

ABSTRACT

We present the design of a power management integrated circuit that processes harvested energy from radio frequency waves and piezoelectric vibrations. The rectification of piezoelectric and RF sources has a power conversion efficiency (PCE) of 87.73% and 74.70%, respectively. The asynchronous and microcontroller-less integrated circuit (IC) is designed to be low power, so the bulk of the harvested energy goes to three loads. The output peak powers of 111 µW, 156 µW, and 128 µW will be sufficient to run small devices for RF communication systems.

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