REDUCTION OF CURRENT AND VOLTAGE STRESSES IN SINGLE-STAGE AC/DC POWER FACTOR CORRECTION CONVERTERS WITH REDUCED REPEATED POWER PROCESSING AND INHERENT INPUT CURRENT CONTROL

摘要: In this paper, a new family of single-stage AC/DC power factor correction converters (S2PFCC), which possesses reduced voltage stress across the storage capacitor and no extra current on switch, is proposed. The are realized by repeated processing concept in part input transferred to load directly after first process. This results lower than that previously developed S2PFCCs but maintaining high factor. addition, inherent control allows reduce line automatically when becomes light, preventing excessive amount energy being stored capacitor. Although proposed employed two switches, simple single-loop controller for S2PFCC achieve (PFC) tight output regulation also Experimental reported verify operation S2PFCC.