About the classification of electromagnetic interference of converters electricity

The procedure of energy transformation inthe converters of switch-mode power supply(SMPS) as electromagnetic interference (EMI)sources are considered. Analytic survey of theprocesses of EMI generation from SMPS is given. Spectral levels of real and standard pulsessequences are compared. It’s shown that EMIlevels sometimes exceed standards, thereforeit’s necessary to elaborate the classification ofSMPS converter as EMI sources