High Bandwidth Integrator for Differential, PCB Integrated Rogowski Coils

  • This paper provides an accurate and high-bandwidth current measurement method, using a differential, PCB integrated Rogowski coil. This measurement is ideal for switching characterization of wide-bandgap semiconductors, which are progressively improving switching speeds of power electronic circuits and require a PCB design with low parasitic inductance. A design workflow for system integration of a differential Rogowski coil, including the necessary signal processing circuits onto a printed circuit board is provided. Different parasitic effects have been analyzed, and an amplifier topology for high bandwidth and superior Common Mode rejection is presented. The calculations are verified by simulation and measurements.

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Metadaten
Author:Markus Zocher, Veit Starost, Norbert Grass, Michael Schmidt, Timo Wilfling
DOI:https://doi.org/10.1109/EDPE58625.2023.10274019
Parent Title (English):2023 International Conference on Electrical Drives and Power Electronics (EDPE)
Publisher:IEEE
Document Type:conference proceeding (article)
Language:English
Release Date:2024/06/20
Tag:ogowski, current measurement, differential coils, PCB, high bandwidth, common mode rejection, WBG
First Page:1
Last Page:8
institutes:Fakultät für Elektrotechnik Feinwerktechnik Informationstechnik
Institut für leistungselektronische Systeme ELSYS
Research Themes:Energie & Ressourcen
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