NDLI: Micro power battery state-of-charge monitor

Content Provider	IEEE Xplore Digital Library
Author	Mundra, T. Kumar, A.
Copyright Year	1975
Abstract	This paper presents the design and implementation of a micro power battery state of charge monitor. The novelty of this design lies in the extreme low power consumption and accurate prediction of the battery reserve time. The average current drawn is successfully limited to 60 muA, which is significantly smaller than those in currently available devices. The proposed design predicts the reserved battery charge with an accuracy of 5% under different discharge conditions. The automated learning scheme using software is utilized. Protection of the battery against excessive current drain and usage outside the specified temperature range is incorporated. This paper details the proposed technique adopted for power reduction. The battery temperature and current sensing circuits are normally in power down mode, they go into active mode for the microcontroller to take measurements. An ON/OFF ratio of 1:153 is achieved which results in power reduction by a factor of 59.30. The average current requirement of the proposed design is reduced from 3302.79 muA to 55.69 muA with the adoption of power reduction approach. The proposed design has been tested on a NiMH, NiCd and Li-Ion battery packs and the experimental results confirm the utility of the proposed design .
Sponsorship	IEEE Consumer Electronics Society
File Size	3474470
File Format	PDF
ISSN	00983063
Volume Number	54
Issue Number	2
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-05-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Monitoring Temperature sensors Energy consumption Protection Temperature distribution Circuits Microcontrollers Current measurement Battery charge measurement Power measurement
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering Media Technology

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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