Maximum Power Point Tracking (MPPT) for on-body Context Systems

descriptionPublicationkeyboard_double_arrow_right Article , Conference object 01 Oct 2006Publisher:IEEEJournal:2006 10th IEEE International Symposium on Wearable Computers (issn: 1550-4816,

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Authors: Nagendra Bhargava Bharatula; Jamie A. Ward; Paul Lukowicz; Gerhard Tröster;

doi: 10.1109/iswc.2006.286363

Maximum Power Point Tracking (MPPT) for on-body Context Systems

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Abstract

In this article we present the use of MPPT (maximum- power-point-tracking) for miniaturized on-body activity recognition systems. We evaluate different solar cells and apply MPPT to study the suitability for on-line activity systems. With a wrist worn solar cell, MPPT allows us to track power levels of 1.35 mW for indoors/wood-workshop lighting and 7.21 mW during dull outdoor lighting conditions. The overall efficiency of the proposed technique is 96% in the best-case scenario and 80% in the worst-case.

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ETH Zurich
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University of Passau
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