Publication

Open-loop CMOS Current Transducer with Low Temperature Cross-sensitivity

Radivoje Popovic
2011
Conference Papers

Abstract

We present an open-loop CMOS current transducer without magnetic core consisting of a bus bar and a CMOS integrated magnetic sensor. The magnetic sensor is a combination of a circular vertical Hall device for low-frequency range and a pick-up coil for high-frequency range. The temperature cross-sensitivity of the Hall device is removed by measuring the angle of the magnetic field vector rather than its magnitude. The first measurement results show nonlinearity less than 1.5 % over 0-150 A range, wide dynamic range 0-2.8 kA, high slew-rate 14 MA/s and low temperature cross-sensitivity 500 ppm/degrees C over 100 degrees C. (C) 2011 Published by Elsevier Ltd.

Official source

https://infoscience.epfl.ch/entities/publication/7dfad5c2-7d56-44e7-8bf8-fe561dd37e55

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Radivoje Popovic
2011
Conference Papers

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/7dfad5c2-7d56-44e7-8bf8-fe561dd37e55

About this result

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High dynamic range

High dynamic range (HDR) is a dynamic range higher than usual, synonyms are wide dynamic range, extended dynamic range, expanded dynamic range. The term is often used in discussing the dynamic range of various signals such as s, videos, audio or radio. It may apply to the means of recording, processing, and reproducing such signals including analog and digitized signals. The term is also the name of some of the technologies or techniques allowing to achieve high dynamic range images, videos, or audio.

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Open-loop CMOS Current Transducer with Low Temperature Cross-sensitivity

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