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- Kim, Jingook
- Integrated Circuit and Electromagnetic Compatibility Lab.
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A Transformer-Isolated Common-Mode Active EMI Filter Using a Low-cost BJT Amplifier with Feedforward Structure
- Author(s)
- Sangyeong Jeong, Shin, Dongil, Kim, Jingook
- Issued Date
- 2019-05-30
- Citation
- 2019 10th International Conference on Power Electronics-ECCE Asia (ICPE 2019-ECCE Asia)
- Abstract
-
This paper proposes a fully transformerisolated feedforward current-sense current-compensation (CSCC) active EMI filter (AEF). The proposed AEF is estimated by circuit analysis, and a design guide is developed. The proposed AEF can be implemented with a low-cost BJT amplifier and operated in an independent low voltage dc supply. The noise attenuation performance of the proposed
AEF is verified by using simulation and vector network analyzer (VNA) measurement. The proposed AEF achieves additional CE noise reduction up to 30dB at frequency range from 150kHz to 3Mhz.
- Publisher
- Korean Institute of Power Electronics
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