Multi-source in-door energy harvesting for non-volatile processors

Caiwen Ding, Soroush Heidari, Yanzhi Wang, Yongpan Liu, Jingtong Hu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

11 Scopus citations

Abstract

Due to size, longevity, safety, and recharging concerns, energy harvesting is becoming a better choice for many wearable embedded systems. However, harvested energy is intrinsically unstable. In order to overcome this drawback, nonvolatile processors (NVPs) was proposed to bridge intermittent program execution. However, even with NVPs, frequent power interruption will severely degrade system performance. In this paper, we will propose a multi-source energy harvesting system to combine multiple harvesting sources to provide a more stable power supply using real-life ambient in-door irradiation level and thermal energy power trace. Maximum power extraction and converter parameter optimization techniques will be discussed. Experimental results show that by optimizing the MOSFET switch size in DC-DC converters between the harvesting system and NVPs, the average output power of the multi-source harvesting system can be increased. The proposed architecture is very promising in providing a stable energy source for NVPs.

Original languageEnglish (US)
Title of host publicationISCAS 2016 - IEEE International Symposium on Circuits and Systems
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages173-176
Number of pages4
Volume2016-July
ISBN (Electronic)9781479953400
DOIs
StatePublished - Jul 29 2016
Event2016 IEEE International Symposium on Circuits and Systems, ISCAS 2016 - Montreal, Canada
Duration: May 22 2016May 25 2016

Other

Other2016 IEEE International Symposium on Circuits and Systems, ISCAS 2016
CountryCanada
CityMontreal
Period5/22/165/25/16

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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  • Cite this

    Ding, C., Heidari, S., Wang, Y., Liu, Y., & Hu, J. (2016). Multi-source in-door energy harvesting for non-volatile processors. In ISCAS 2016 - IEEE International Symposium on Circuits and Systems (Vol. 2016-July, pp. 173-176). [7527198] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ISCAS.2016.7527198