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The performance of the electromagnetic interference (EMI) filter under the condition without the Une impedance stabilization network (LISN) are revealed and analyzed from the perspective of the common mode (CM) and differential mode (DM) impedances of the switched-mode power supply (SMPS), AC mains, and LISN. The in-circuit CM and DM impedances of the SMPS, AC mains, and LISN are extracted with an...
Common mode (CM) and differential mode (DM) conducted emissions without the line impedance stabilization network (LISN) is investigated from the perspective of CM and DM impedances. Using a switched-mode power supply (SMPS) as an equipment under test (EUT), the in-circuit CM and DM impedances of the actual measurement setup with and without LISN are extracted so that the deviation of conducted emission...
To demonstrate the impact of the line impedance stabilization network (LISN) on conducted electromagnetic interference (EMI) measurement, an in-circuit impedance extraction method based on inductive coupling approach is developed to extract the common mode (CM) and the differential mode (DM) noise impedances of AC mains, LISN, and switched-mode power supply (SMPS) under operating condition. By treating...
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