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
| Autor: | J. Deng, J-L Nagel, L. Zahnd, M. Pons, D. Ruffieux, C. Arm, P. Persechini, S. Emery |
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| Rok vydání: | 2019 |
| Předmět: |
business.industry
Firmware Computer science 020208 electrical & electronic engineering Energy conversion efficiency Electrical engineering 02 engineering and technology computer.software_genre 020202 computer hardware & architecture Power (physics) Microcontroller Data acquisition Hardware_GENERAL 0202 electrical engineering electronic engineering information engineering business Energy source computer Energy harvesting Energy (signal processing) |
| Zdroj: | ISLPED |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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