Current spinning and signal conditioning circuit for high-performance magnetic field sensing

Kumar, S and Narayanan, G and Muralidharan, R (2020) Current spinning and signal conditioning circuit for high-performance magnetic field sensing. In: 9th IEEE Power India International Conference, PIICON 2020, 28 February- 1 March, 2020, SonePat, India.

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Abstract

Magnetic field sensing is important in many power electronic and motor control applications. By exploiting the capabilities of emerging wide band-gap materials and structures, such as AlGaN/GaN heterojunctions, high-performance magnetic field sensors can be realised. Such sensors can be used for reliable field sensing at extreme temperatures. A Hall sensing element typically generates a low-magnitude output voltage with a relatively large offset due to non-uniformities and stresses in the sensing element. In this work, an electronic subsystem is designed, fabricated and calibrated, whereby the method of current spinning is used alongside a signal conditioning network to cancel the effect of these offsets.

Item Type:	Conference Paper
Publication:	PIICON 2020 - 9th IEEE Power India International Conference
Publisher:	Institute of Electrical and Electronics Engineers Inc.
Additional Information:	The copyright of this article belongs to Institute of Electrical and Electronics Engineers Inc.
Keywords:	Aluminum gallium nitride; Energy gap; Gallium nitride; Heterojunctions; III-V semiconductors; Magnetic circuits; Magnetic fields; Strain measurement; Timing circuits; Wide band gap semiconductors, AlGaN/GaN heterojunction; Electronic subsystems; Extreme temperatures; Magnetic field sensing; Magnetic field sensors; Non-uniformities; Sensing elements; Wide band-gap material, Signal conditioning circuits
Department/Centre:	Division of Electrical Sciences > Electrical Engineering
Date Deposited:	25 Aug 2020 07:36
Last Modified:	25 Aug 2020 07:36
URI:	http://eprints.iisc.ac.in/id/eprint/65990

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