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Lookup NU author(s): Dr Delong Shang, Dr Fei Xia, Professor Alex Yakovlev
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DC/DC conversion has been an integral part of the power delivery chain in energy harvesting systems because the conventionally targeted synchronous computation load demands stable Vdd, which cannot in general be supplied by power harvesters directly. However, asynchronous computation loads, in addition to their potential power-saving capabilities, can be made tolerant to a much wider range of Vdd variance. This may open up opportunities for much more energy efficient methods of power delivery to be adopted. This paper presents in-depth investigations into the behavior and performance of different power delivery methods driving both asynchronous and synchronous load for the first time. A novel power delivery method, which employs a capacitor bank for adaptively storing the energy from power harvesters depending on load and source conditions, is developed. Its advantages, especially when driving asynchronous loads, are demonstrated through comprehensive comparative analysis.
Author(s): Zhang XF, Shang DL, Xia F, Yakovlev A
Publication type: Conference Proceedings (inc. Abstract)
Publication status: Published
Conference Name: 17TH IEEE International Symposium on Asynchronous Circuits and Systems (ASYNC)
Year of Conference: 2011
Pages: 89-98
ISSN: 1522-8681
Publisher: IEEE
URL: http://dx.doi.org/10.1109/ASYNC.2011.16
DOI: 10.1109/ASYNC.2011.16
Library holdings: Search Newcastle University Library for this item
ISBN: 9781612849737
