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Wide Bandwidth Current Sensor for Characterization of High Current Power Semiconductor Modules
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| Author(s) |
Philipp ZIEGLER |
| Abstract |
This paper presents a current sensor for commutation current measurement of high current powersemiconductor modules with a bandwidth from DC up to 240 MHz. It is integrated in the commutationpath with a coaxial housing generating a specified measurement point adding a low insertion inductanceof 1.8 nH. It consists of tunnel-magnetoresistance sensors for low frequency current measurement anda PCB integrated Rogowski coil for high frequency current measurement. The measurement techniquesare combined using the HOKA principle. The DC current linearity, the dynamic behavior as well as thesignal-to-noise ratio of the current sensor is characterized. |
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| Filename: | 0046-epe2021-full-08414396.pdf |
| Filesize: | 1.64 MB |
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| Type |
Members Only |
| Date |
Last modified 2022-03-15 by System |
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