전력전자학회:학술대회논문집 (Proceedings of the KIPE Conference)
- 전력전자학회 2002년도 전력전자학술대회 논문집
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- Pages.91-94
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- 2002
전도성 EMI저감을 위한 능동형 공통모드 EMI 필터
A Novel Active Common-mode EMI Filter for Mitigating Conducted EMI
- Son Yo-Chan (School of Electrical Engineering and Computer Science, College of Engineering, Seoul National University) ;
- Sul Seung-Ki (School of Electrical Engineering and Computer Science, College of Engineering, Seoul National University)
- 발행 : 2002.07.01
초록
This paper presents a novel active common-mode EMI filter for the PWM inverter application. The proposed filter is based on the current sensing and compensation circuit and it utilizes a fast transistor amplifier for the current compensation. The amplifier utilizes an isolated low-voltage dc power supply for its biasing and it is possible to construct the active filter independent of the source voltage of the equipment. Thus the proposed active filter can be used in any application regardless of its working voltage. The effectiveness of the proposed circuit is verified by experimental results.
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