Novel single-stage power factor correction AC/DC converter

This paper presents a single-stage PEC (power factor correction) AC/DC converter that uses a tapped inductor. This converter can also operate in the current continuous-conduction mode (CCM) as the single-stage PFC converter that uses two inductors. Making reasonable use of the leakage inductance in the tapped inductor can reduce the number of components. The operating principles of designing the circuits are analyzed, the simulation and the experiments on the circuits are studied. Experimental results verify that the line current complies with the international regulations of IEC61000-3-2 Class D when the input voltage changes in a wide range of 100-240 V and a high efficiency of 87% is obtained.