High-Resolution Physically-Windowed Sensors for Power Electronics Applications
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Leeb_High-resolution physically-windowed.pdf
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1.02 MB
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Adobe PDF
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Author(s)
Wichakool, Warit
Paris, James
Avestruz, Al-Thaddeus
Leeb, Steven B.
Date Issued
March 2010
Journal
2010 Twenty-Fifth Annual IEEE Applied Power Electronics Conference and Exposition
Publisher
Institute of Electrical and Electronics Engineers (IEEE)
Citation
Wichakool, Warit et al. “High-resolution Physically-windowed Sensors for Power Electronics Applications.” 2010 Twenty-Fifth Annual IEEE Applied Power Electronics Conference and Exposition, IEEE, 2010. 580–587. © Copyright 2010 IEEE
Version
Final published version
Abstract
This paper presents a high-resolution, physically-windowed sensor architecture that is well-suited for energy scorekeeping and diagnostic applications. The sensor can track a large-scale main signal while capturing small-scale variations. The prototype system measures a small current signal using a closed-loop Hall sensor, and extends the range by driving a compensation current through an auxiliary winding. The system combines the compensation command and the sampled output of the residual sensor to reconstruct the input signal. Results show that the prototype can measure both dc and ac currents with 10 mA resolution over a 160 A current range.
MIT Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1109/APEC.2010.5433611
