A battery-less, 255 nA quiescent current temperature sensor with voltage regulator fully powered by harvesting ambient vibrational energy

Shiquan Fan, Liuming Zhao, Peng Wang, Ran Wei, Xu Qian Zheng, Zenghui Wang, Philip X.L. Feng

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

7 Scopus citations

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 languageEnglish
Title of host publicationIEEE International Symposium on Circuits and Systems
Subtitle of host publicationFrom Dreams to Innovation, ISCAS 2017 - Conference Proceedings
ISBN (Electronic)9781467368520
DOIs
StatePublished - Sep 25 2017
Event50th IEEE International Symposium on Circuits and Systems, ISCAS 2017 - Baltimore, United States
Duration: May 28 2017May 31 2017

Publication series

NameProceedings - IEEE International Symposium on Circuits and Systems
ISSN (Print)0271-4310

Conference

Conference50th IEEE International Symposium on Circuits and Systems, ISCAS 2017
Country/TerritoryUnited States
CityBaltimore
Period5/28/175/31/17

Bibliographical note

Funding Information:
ACKNOWLEDGMENT We thank Soumyajit Mandal, Wen H. Ko and Steve J. A. Majerus for technical support and helpful discussions. We thank support from the U.S. Department of Energy (DOE) EERE Grant (DE-EE0006719), the National Natural Science Foundation of China (61504105), the National Key R&D Program of China (2016YFB0400200), the China Postdoctoral Science Foundation (2015M582658), and the China Scholarship Council (CSC No. 201506285143).

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

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