How to Model, Measure, and Reduce EMI Noise (Download)

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This article offers ways to reduce and even avoid electromagnetic interference (EMI)—noise—in their designs. We’ll look at some electronic system design examples plagued or even damaged by EMI and some tried and true methods of reducing or even eliminating harsh EMI disturbances.

EMI Noise Modeling

Two common-mode (CM) noise sources make up the CM noise model of the three-level T-type inverter (3LT²I) used in adjustable-speed-drive (ASD) systems.⁵ The 3LT²I holds some significant advantages over a two-level voltage source inverter (2L-VSI).