New Modeling of EMI Simulation in Flyback Converters

ABSTRACT:This paper looks at the fundamental factors determining the EMI generated by flyback switching power converters. It uses simple simulations of typical circuits to show the influence of several converter topologies and the effects of various components on EMI performance, particularly the common mode components which are responsible for many of the interference problems experienced. The produced interference can be in the form of conduction or radiation. In this paper, some techniques are used in switching converters to suppress EMI with emphasis on the conduction form. EMI analysis and evaluation of a flybackconverter is achieved by simulation results which is done in SABER.