40 nm CMOS Ultra-Low Power Integrated Gas Gauge System for Mobile Phone Applications

This paper presents a fully integrated gas gauge system for mobile phone applications. It aims to consume a very small amount of power (less than 5%) compared to the whole system consumption during standby, maintaining a good level of accuracy in measuring battery energy in and out. It does not use...

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Bibliographic Details
Published in:IEEE transactions on circuits and systems. I, Regular papers Regular papers, 2013-04, Vol.60 (4), p.836-845
Main Authors: Neri, F., Cimaz, L.
Format: Article
Language:English
Subjects:
Batteries
Battery charge measurement
Battery charger
Cell phones
Circuits
CMOS
Coulomb counter
Discharges (electric)
Energy consumption
Gages
gas gauge
Gauges
Li-ion
Mobile handsets
mobile phone
Power consumption
Radiation detectors
Resistors
state-of-charge
Temperature measurement
Voltage measurement
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Summary:This paper presents a fully integrated gas gauge system for mobile phone applications. It aims to consume a very small amount of power (less than 5%) compared to the whole system consumption during standby, maintaining a good level of accuracy in measuring battery energy in and out. It does not use any external bulky and expensive components beside the sense resistor and it has been manufactured in a CMOS 40 nm process and successfully validated in the lab.
ISSN:1549-8328
1558-0806
DOI:10.1109/TCSI.2012.2209729