Merits and limitations of full-bridge rectifier with LC filter in meeting IEC 1000-3-2 harmonic-limit specifications

Abstract

The feasibility of the single-phase, full-bridge rectifier with an LC filter to meet the IEC 1000-3-2, class D harmonic specifications is assessed. It is found that this passive LC filter approach can meet the required specifications if a proper inductance value of the filter choke is selected. Choke design considerations and performance evaluation results that include the power loss, volume, and weight estimates for applications with power levels between 75 W and 600 W are presented.