NDLI: A new digital modulated interface for a precise and robust current sensor

Content Provider	IEEE Xplore Digital Library
Author	Bouabana, A. Sourkounis, C.
Copyright Year	2011
Description	Author affiliation: Ruhr-University Bochum, Universitaetsstr. 150, Bochum, Germany (Bouabana, A.; Sourkounis, C.)
Abstract	Compared to conventional current sensors, the proposed topology is advantageous because of its high resolution throughout its full measurement range, thus reducing offsets to a minimum. This aim is reached through active offset compensation using an analog/digital chopper/de-chopper. A further advantage is the excellent suppression of 1/f noise and a low noise density (35 nV/√Hz) down to the DC-threshold. Common current sensors may be replaced with this technology whose one output is likewise analog. The power supply requirements are also far lower than for standard topologies as only a single supply is needed. The F-PWM modulation method and therefore the current sensor, results for current control units a high performance. The measurement current is directly coded in a “digital current value”, which can be decoded and used for the control unit. An AD-Converter is not more necessary for signal conversion, compared to the typical analog output current sensor based on the Hall-Effect. The coded signals can be transmitted potential — free with an optocoupler.
Starting Page	1
Ending Page	9
File Size	542843
Page Count	9
File Format	PDF
ISBN	9781612841670
e-ISBN	9789075815146
e-ISBN	9789075815153
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-08-30
Publisher Place	United Kingdom
Access Restriction	Subscribed
Rights Holder	EPE ASSOCIATION
Subject Keyword	Resistors Electric potential Semiconductor device measurement Voltage measurement Current measurement modulation Noise Modulation galvanic isolation Components for measurement measurement sensor F-PWM
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
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7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
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