CMOS magnetic field sensor using a pick-up loop

for measuring electric currents

Master thesis (2022)

Authors

J. Boele Electrical Engineering, Mathematics and Computer Science

Contributors

C.J.M. Verhoeven Electronics - EEMCS (supervisor 1)
A.J.M. Montagne Electronics - EEMCS (supervisor 1)
J. Dong DC systems, Energy conversion & Storage - EEMCS (supervisor 2)
C van den Bos (coach)
Faculty
Electrical Engineering, Mathematics and Computer Science
Copyright: © 2022 Jelle Boele
Magnetic field Sensor system CMOS Current measurement Pick-up loop Hall plate
More Info
expand_more

Published Date

31-01-2022

Language

English

Reuse Rights

Other than for strictly personal use, it is not permitted to download, forward or distribute the text or part of it, without the consent of the author(s) and/or copyright holder(s), unless the work is under an open content license such as Creative Commons.

Faculty

Electrical Engineering, Mathematics and Computer Science

Abstract

This thesis describes the design of a CMOS magnetic field sensor system for measuring electronic currents. A hybrid system, using Hall plates and a pick-up loop is chosen to obtain improved performance compared to conventional Hall based magnetic field sensors. The pick up loop enables to reduce the current consumption and increases the bandwidth of the system. The design of the pick-up loop and readout amplifier are described in detail. Simulation results of the pick-up loop signal path offer a factor 10 increase in bandwidth using 24% less current compared to a system consisting of two Hall plate channels.