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Passive EMI filters occupy significant volume in a power converter. This work involves the study of utilizing Active EMI Filters (AEF) and Hybrid EMI Filters (HEF) to reduce the volume of passive filters. The DUT under consideration is a 30 W AC-DC converter. Since the power level less than 65 W it does not have a PFC stage. In this work, noise sensing is carried out using voltage sensing methodology...