KEPCO Journal on Electric Power and Energy

  • 제6권4호
  • /
  • Pages.473-480
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  • 2020
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  • 2465-8111(pISSN)
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  • 2466-0124(eISSN)
한국전력공사 (Korea Electric Power Corporation)
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DC-DC 벅 컨버터의 차동모드 노이즈 분석을 위한 고주파 등가회로 모델

High-Frequency Equivalent Circuit Model for Differential Mode Noise Analysis of DC-DC Buck Converter

  • Shin, Juhyun (Department of Electrical Engineering, Chung Nam National University) ;
  • Kim, Woojung (SK Innovation) ;
  • Cha, Hanju (Department of Electrical Engineering, Chung Nam National University)
  • 투고 : 2020.07.13
  • 심사 : 2020.10.15
  • 발행 : 2020.12.30
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초록

In this paper, we proposed a high frequency equivalent circuit considering parasitic impedance components for differential noise analysis on the input stage during DC-DC buck converter switching operation. Based on the proposed equivalent circuit model, we presented a method to measure parasitic impedance parameters included in DC bus plate, IGBT, and PCB track using the gain phase method of a network analyzer. In order to verify the validity of this model, a DC-DC prototype consisting of a buck converter, a signal analyzer, and a LISN device, and then resonance frequency was measured in the frequency range between 150 kHz and 30 MHz. The validity of the parasitic impedance measurement method and the proposed equivalent model is verified by deriving that the measured resonance frequency and the resonance frequency of the proposed high frequency equivalent model are the same.

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과제정보

본 연구는 한국전력공사의 2020년 선정 기초연구개발 과제 연구비에 의해 지원되었음 (과제번호: R20XO02-36)

참고문헌

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