Electromagnetic Compatibility Considerations for Switched Mode Power Supplies

Electromagnetic Compatibility Considerations for Switched Mode Power Supplies

Switched Mode Power Supplies (SMPS) generate Electromagnetic Interference (EMI) by virtue of their inherent design characteristics. This paper examines the rules and regulations governing control of EMI, discusses types of noise generated by SMPS, and provides basic guidance for EMI mitigation for SMPS, whether installed in other equipment as part of a larger system or a SMPS designed for stand-alone applications.