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http://dx.doi.org/10.6113/JPE.2016.16.3.1236

Design and Implementation of an Active EMI Filter for Common-Mode Noise Reduction  

Lee, Kuk-Hee (Department of Control and Instrumentation Engineering, Gyeongsang National University)
Kang, Byeong-Geuk (Department of Control and Instrumentation Engineering, Gyeongsang National University)
Choi, Yongoh (Department of Control and Instrumentation Engineering, Gyeongsang National University)
Chung, Se-Kyo (Department of Control and Instrumentation Engineering, Gyeongsang National University)
Won, Jae-Sun (Wireless Power Transfer Team, Samsung Electro-Mechanics)
Kim, Hee-Seung (Wireless Power Transfer Team, Samsung Electro-Mechanics)
Publication Information
Journal of Power Electronics / v.16, no.3, 2016 , pp. 1236-1243 More about this Journal
Abstract
This paper presents the analysis and design of an active electromagnetic interference (EMI) filter (AEF) for the common-mode (CM) noise reduction of switching power converters. The features of the several types of AEFs are discussed and compared in terms of implementation. The feed-forward AEF with a voltage-sensing and voltage-cancellation (VSVC) structure is implemented for an LLC resonant converter to replace a multiple-stage passive EMI filter and thereby reduce CM noise. The characteristics and performance of the VSVC-type AEF are investigated through theoretical and experimental works.
Keywords
Active EMI filter; Common-mode noise; EMI; Noise reduction;
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