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Project TitleUltra Low Power Method and Device for Integrated Circuits
Track Code2017-133
Short DescriptionPrincipal Investigator: Benton Calhoun
Abstract

The number of everyday objects that can connect to the Internet is projected to exceed desktops and mobile phones by 2020. Making everyday objects “smart” and power-efficient will require special improvements in battery, microelectronic, and communication technologies. Batteryless modules using energy harvesting features are widely known and used. As everyday integrated circuit (IC) designs become more complicated based on data use and needs, a power consumption problem arises due to the static power overhead of duty-cycled components (e.g. voltage references, bias generators etc.) and always-on circuits such as reference generators, real-time-clocks etc. To address these problems, researchers at the University of Virginia, have developed an Energy Harvesting and Power Management Unit (EH-PMU) for next generation sub-microWatts (µW) ICs. The researchers demonstrated an EH-PMU system, with about 80x power reduction used by the reference generator alone. Achieving peak end-to-end efficiency of over 70% (while powering a 1 µW load w/ 0.13μm chip), their EH-PMU platform holds promise for significantly boosting performance of batteryless IC microsystems.

 
Tagssystems-on-chip; energy harvesting; wireless sensors; integrated circuits; "sub-threshold" microchips; microprocessors; ASIC
 
Posted DateJul 17, 2017 12:21 PM