Abstract
We report on the circuit design and experimental demonstration of a battery-less, self-powering temperature sensor node, powered entirely by a piezoelectric (PZE) ambient vibrational energy harvester, and enabled by a novel ultra-low-power application-specific integrated circuit (ASIC). The ASIC collects and stores energy generated by the PZE transducer into a supercapacitor, powers both the on-ASIC temperature sensor and the on-board RF module for wireless temperature sensing applications. The ASIC is fabricated using a standard 0.5 μm CMOS process. The quiescent current in the entire ASIC is only 55 nA for energy harvesting, and 255 nA when temperature sensing is further included. Such self-powering temperature sensors can help enable low-cost transformation of today's ordinary buildings into energy-efficient smart buildings.
| Original language | English |
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| Title of host publication | IEEE International Symposium on Circuits and Systems |
| Subtitle of host publication | From Dreams to Innovation, ISCAS 2017 - Conference Proceedings |
| ISBN (Electronic) | 9781467368520 |
| DOIs | |
| State | Published - Sep 25 2017 |
| Event | 50th IEEE International Symposium on Circuits and Systems, ISCAS 2017 - Baltimore, United States Duration: May 28 2017 → May 31 2017 |
Publication series
| Name | Proceedings - IEEE International Symposium on Circuits and Systems |
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| ISSN (Print) | 0271-4310 |
Conference
| Conference | 50th IEEE International Symposium on Circuits and Systems, ISCAS 2017 |
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| Country/Territory | United States |
| City | Baltimore |
| Period | 5/28/17 → 5/31/17 |
Bibliographical note
Publisher Copyright:© 2017 IEEE.
Keywords
- application-specific integrated circuit (ASIC)
- energy harvesting
- piezoelectric (PZE) transducer
- quiescent current
- self-powering
- ultra-low-power
- wireless temperature sensor
ASJC Scopus subject areas
- Electrical and Electronic Engineering