Energy-Autonomous MCU Operating in sub-VT Regime with Tightly-Integrated Energy-Harvester : A SoC for IoT smart nodes containing a MCU with minimum-energy point of 2.9pJ/cycle and a harvester with output power range from sub-µW to 4.32mW
Metadata
Show full item recordAbstract
We describe a SoC achieving zero-net-energy operation by using energy harvesting and sub-threshold design. It consists of a microcontroller for data acquisition, data processing, and communication and an energy harvester unit enabling energy-autonomous operation. The microcontroller built with latch-based design achieves robust operation in a wide frequency range from 5 kHz to 40 MHz with a minimum energy point of 2.9 pJ/cycle @ 0.375V and 21 MHz. With this SoC, the battery lifetime is extended indefinitely thanks to the energy harvesting unit, which is capable to handle output power range from sub-μW to 4.32 mW with peak conversion efficiency of 65%. The tight integration of MCU and harvester enables the development of customized firmware algorithms for energy optimized operation with very diverse energy sources.Publication Reference
2019 IEEE/ACM International Symposium on Low Power Electronics and Design (ISLPED), pp. 1-4Year
2019Collections
Related items
Showing items related by title, author, creator and subject.
-
Application-independent protocol for predicting the efficiency of lithium-ion battery cells in operations
Brivio, C.; Musolino, V.; Alet, P. J.; Merlo, M.; Hutter, A.; Ballif, C. (2018)Despite a continuous reduction in battery prices, investment in storage systems carries a high risk. Indeed, many applications lack an adequate test protocol and method to predict the performance of batteries in operations. ... -
Optimised Heat Pump Management for Increasing Photovoltaic Penetration into the Electricity Grid
Sanchez, C.; Bloch, L.; Holweger, J.; Ballif, C.; Wyrsch, N. (2019)Advanced control of heat pumps with thermal storage and photovoltaics has recently been promoted as a promising solution to help decarbonise the residential sector. Heat pumps and thermal storage offer a valuable flexibilisation ... -
Analysis of lithium-ion cells performance, through novel test protocol for stationary applications
Brivio, C.; Musolino, V.; Alet, P. J.; Merlo, M.; Hutter, A.; Ballif, C.; et al. (2017)Renewable energy sources (RES) are changing the operating conditions of power systems. In this context, battery energy storage systems (BESSs) could be a viable technical solution to maximize the local consumption of RES ...