A Novel Reset-Less Rogowski Switch Current Sensor

High-frequency power electronics require a more tailored design process, as well as compatible instrumentation necessary for operation and maintenance. Hence, there is a need for high-bandwidth, compact, and accurate current measurement solution to serve the trending high-frequency power electronics...

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Bibliographic Details
Published inIEEE transactions on power electronics Vol. 38; no. 4; pp. 1 - 4
Main Authors Niakan, Hossein, Sirat, Ali Parsa, Parkhideh, Babak
Format Journal Article
LanguageEnglish
Published New York IEEE 01.04.2023
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Current measurement
Electronics
Inductive sensing
Power electronics
Probes
rogowski coil
Semiconductor device measurement
Steady-state
switch current
Switches
Voltage measurement
Waveforms
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Summary:High-frequency power electronics require a more tailored design process, as well as compatible instrumentation necessary for operation and maintenance. Hence, there is a need for high-bandwidth, compact, and accurate current measurement solution to serve the trending high-frequency power electronics. Embedded Rogowski sensor is among the favorites, due to its high-bandwidth, compactness, and integrability. However, the inability to measure DC components is setting it back to be used as an integrated switch current sensor for wide-bandgap power electronics. This letter presents a Rogowski-based switch current detector, including a novel DC compensation technique. The proposed sensor can detect very fast switch current waveforms, not requiring any external resetting functions to correct the sensor measurement errors.
ISSN:0885-8993
1941-0107
DOI:10.1109/TPEL.2022.3227536