Energy efficiency of recharging a mobile device

Jussi Ruutu; Jukka K. Nurminen; Kari Rissanen

doi:10.1109/NGMAST.2011.39

Energy efficiency of recharging a mobile device

Jussi Ruutu, Jukka K. Nurminen, Kari Rissanen

Not published at VTT

Aalto University

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

3 Citations (Scopus)

Abstract

Because of losses in electricity conversion and storage only part of the energy taken from the power grid produces useful work in a battery-operated mobile device, the rest evaporates as heat. We analyze the recharging activity of a mobile phone to understand the efficiency of the different units involved (charger, EPM chipset, battery). Our measurements show that the efficiency is quite low, only about 15% of the electricity from the power grid ends up being used for the actual computing and communication elements of the mobile phone. It seems that there is room for improvement in the recharging efficiency. However, as the consumption of electricity of a single phone is small the incentive for improvements has been weak. © 2011 IEEE.

Original language	English
Title of host publication	International Conference on Next Generation Mobile Applications, Services, and Technologies
Publisher	IEEE Institute of Electrical and Electronic Engineers
Pages	175-179
Number of pages	5
ISBN (Electronic)	978-0-7695-4496-0
DOIs	https://doi.org/10.1109/NGMAST.2011.39
Publication status	Published - 2011
MoE publication type	Not Eligible

Keywords

Efficiency
Energy
Mobile phone
Power
Recharging

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10.1109/NGMAST.2011.39

Cite this

@inproceedings{0384c052bd294e958519778ed07be0e6,

title = "Energy efficiency of recharging a mobile device",

abstract = "Because of losses in electricity conversion and storage only part of the energy taken from the power grid produces useful work in a battery-operated mobile device, the rest evaporates as heat. We analyze the recharging activity of a mobile phone to understand the efficiency of the different units involved (charger, EPM chipset, battery). Our measurements show that the efficiency is quite low, only about 15% of the electricity from the power grid ends up being used for the actual computing and communication elements of the mobile phone. It seems that there is room for improvement in the recharging efficiency. However, as the consumption of electricity of a single phone is small the incentive for improvements has been weak. {\textcopyright} 2011 IEEE.",

keywords = "Efficiency, Energy, Mobile phone, Power, Recharging",

author = "Jussi Ruutu and Nurminen, {Jukka K.} and Kari Rissanen",

year = "2011",

doi = "10.1109/NGMAST.2011.39",

language = "English",

pages = "175--179",

booktitle = "International Conference on Next Generation Mobile Applications, Services, and Technologies",

publisher = "IEEE Institute of Electrical and Electronic Engineers",

address = "United States",

}

Energy efficiency of recharging a mobile device. / Ruutu, Jussi; Nurminen, Jukka K.; Rissanen, Kari.
International Conference on Next Generation Mobile Applications, Services, and Technologies. IEEE Institute of Electrical and Electronic Engineers, 2011. p. 175-179.

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

TY - GEN

T1 - Energy efficiency of recharging a mobile device

AU - Ruutu, Jussi

AU - Nurminen, Jukka K.

AU - Rissanen, Kari

PY - 2011

Y1 - 2011

N2 - Because of losses in electricity conversion and storage only part of the energy taken from the power grid produces useful work in a battery-operated mobile device, the rest evaporates as heat. We analyze the recharging activity of a mobile phone to understand the efficiency of the different units involved (charger, EPM chipset, battery). Our measurements show that the efficiency is quite low, only about 15% of the electricity from the power grid ends up being used for the actual computing and communication elements of the mobile phone. It seems that there is room for improvement in the recharging efficiency. However, as the consumption of electricity of a single phone is small the incentive for improvements has been weak. © 2011 IEEE.

AB - Because of losses in electricity conversion and storage only part of the energy taken from the power grid produces useful work in a battery-operated mobile device, the rest evaporates as heat. We analyze the recharging activity of a mobile phone to understand the efficiency of the different units involved (charger, EPM chipset, battery). Our measurements show that the efficiency is quite low, only about 15% of the electricity from the power grid ends up being used for the actual computing and communication elements of the mobile phone. It seems that there is room for improvement in the recharging efficiency. However, as the consumption of electricity of a single phone is small the incentive for improvements has been weak. © 2011 IEEE.

KW - Efficiency

KW - Energy

KW - Mobile phone

KW - Power

KW - Recharging

U2 - 10.1109/NGMAST.2011.39

DO - 10.1109/NGMAST.2011.39

M3 - Conference article in proceedings

SP - 175

EP - 179

BT - International Conference on Next Generation Mobile Applications, Services, and Technologies

PB - IEEE Institute of Electrical and Electronic Engineers

ER -

Energy efficiency of recharging a mobile device

Abstract

Keywords

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