The Transactions of the Korean Institute of Power Electronics (전력전자학회논문지)

The Korean Institute of Power Electronics (전력전자학회)
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PCB Integrated Spiral Pattern Pick-up Coil Current Measurement Scheme with High Sensitivity for WBG Devices

WBG 소자를 위한 높은 측정 감도를 가지는 PCB 내장형 Spiral 패턴 Pick-up Coil 전류 측정 기법

  • Kim, Kyeong-Mo (Dept. of Electrical Engineering, HYPEC-EPECS Lab., Hanyang University) ;
  • Cha, Hwa-Rang (Dept. of Electrical Engineering, HYPEC-EPECS Lab., Hanyang University) ;
  • Kim, Rae-Young (Dept. of Electrical Bio-Engineering, Hangyang University)
  • Received : 2019.12.20
  • Accepted : 2020.02.14
  • Published : 2020.06.20
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Abstract

In this paper, we report our study of the current measuring technique by implementing a pick-up coil in the PCB pattern instead of the current measuring sensor in a power converter using a WBG device. The proposed PCB pattern coil structure has a higher mutual inductance value than the conventional pattern by constructing the coil using the multi layer board. It has high sensitivity and is configured without additional process outside the PCB. In the current measurement, the integrator is measured by integrating the coil at the back end and the current waveform measured using proposed pick-up coil is confirmed by comparing it with the original current waveform through DPT simulation.

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References

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