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In addition to interference, high \({\text{d}V}_{\text{DS}}/{\text{d}t}\) can also introduce common-mode current, posing another challenge when using SiC MOSFETs. Mentioning common-mode current in power converters generally refers to the common-mode current in the power path, leading to external EMI issues. Due to the higher switching speed of SiC MOSFETs, EMI problems caused by common-mode currents become more severe. Relevant research and mitigation methods are well-documented, and we won't elaborate on them extensively in this book.

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Impact and Countermeasures of High dv/dt—Common-Mode Current

  • 章节

  • 发表日期：

    2025年

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  • Yuan Gao,
  • Yan Zhang

摘要

In addition to interference, high \({\text{d}V}_{\text{DS}}/{\text{d}t}\) can also introduce common-mode current, posing another challenge when using SiC MOSFETs. Mentioning common-mode current in power converters generally refers to the common-mode current in the power path, leading to external EMI issues. Due to the higher switching speed of SiC MOSFETs, EMI problems caused by common-mode currents become more severe. Relevant research and mitigation methods are well-documented, and we won't elaborate on them extensively in this book.