A 42nJ/conversion on-demand state-of-charge indicator for miniature IoT Li-ion batteries

Junwon Jeong, Seokhyeon Jeong, Chulwoo Kim, Dennis Sylvester, David Blaauw

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

Abstract

An energy efficient State-of-Charge (SOC) indication algorithm and integrated system for small IoT batteries are introduced in this paper. The system is implemented in a 180-nm CMOS technology. Based on a key finding that small Li-ion batteries exhibit a linear dependence between battery voltage and load current, we propose an instantaneous linear extrapolation (ILE) algorithm and circuit allowing on-demand estimation of SOC. Power consumption is 42nW and maximum SOC indication error is 1.7%.

Original languageEnglish
Title of host publicationASP-DAC 2018 - 23rd Asia and South Pacific Design Automation Conference, Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages281-282
Number of pages2
Volume2018-January
ISBN (Electronic)9781509006021
DOIs
Publication statusPublished - 2018 Feb 20
Event23rd Asia and South Pacific Design Automation Conference, ASP-DAC 2018 - Jeju, Korea, Republic of
Duration: 2018 Jan 222018 Jan 25

Other

Other23rd Asia and South Pacific Design Automation Conference, ASP-DAC 2018
CountryKorea, Republic of
CityJeju
Period18/1/2218/1/25

Fingerprint

Extrapolation
Electric power utilization
Networks (circuits)
Electric potential
Internet of things
Lithium-ion batteries

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Computer Science Applications
  • Computer Graphics and Computer-Aided Design

Cite this

Jeong, J., Jeong, S., Kim, C., Sylvester, D., & Blaauw, D. (2018). A 42nJ/conversion on-demand state-of-charge indicator for miniature IoT Li-ion batteries. In ASP-DAC 2018 - 23rd Asia and South Pacific Design Automation Conference, Proceedings (Vol. 2018-January, pp. 281-282). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ASPDAC.2018.8297320

A 42nJ/conversion on-demand state-of-charge indicator for miniature IoT Li-ion batteries. / Jeong, Junwon; Jeong, Seokhyeon; Kim, Chulwoo; Sylvester, Dennis; Blaauw, David.

ASP-DAC 2018 - 23rd Asia and South Pacific Design Automation Conference, Proceedings. Vol. 2018-January Institute of Electrical and Electronics Engineers Inc., 2018. p. 281-282.

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

Jeong, J, Jeong, S, Kim, C, Sylvester, D & Blaauw, D 2018, A 42nJ/conversion on-demand state-of-charge indicator for miniature IoT Li-ion batteries. in ASP-DAC 2018 - 23rd Asia and South Pacific Design Automation Conference, Proceedings. vol. 2018-January, Institute of Electrical and Electronics Engineers Inc., pp. 281-282, 23rd Asia and South Pacific Design Automation Conference, ASP-DAC 2018, Jeju, Korea, Republic of, 18/1/22. https://doi.org/10.1109/ASPDAC.2018.8297320
Jeong J, Jeong S, Kim C, Sylvester D, Blaauw D. A 42nJ/conversion on-demand state-of-charge indicator for miniature IoT Li-ion batteries. In ASP-DAC 2018 - 23rd Asia and South Pacific Design Automation Conference, Proceedings. Vol. 2018-January. Institute of Electrical and Electronics Engineers Inc. 2018. p. 281-282 https://doi.org/10.1109/ASPDAC.2018.8297320
Jeong, Junwon ; Jeong, Seokhyeon ; Kim, Chulwoo ; Sylvester, Dennis ; Blaauw, David. / A 42nJ/conversion on-demand state-of-charge indicator for miniature IoT Li-ion batteries. ASP-DAC 2018 - 23rd Asia and South Pacific Design Automation Conference, Proceedings. Vol. 2018-January Institute of Electrical and Electronics Engineers Inc., 2018. pp. 281-282
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