New power factor correction AC/DC converter with reduced storage capacitor voltage

Single-stage power factor correction (PFC) AC/DC converters usually present a high storage capacitor voltage stress and voltage variation. The series inductance interval (SII) PFC converters allow obtaining a bulk capacitor voltage lower than the peak value of the line voltage and even lower than output voltage. In this paper the novel single-stage SII-B-2D PFC converter is presented. This topology combines as three main advantages a low value and not much variable storage capacitor voltage, input current harmonics under EN61000-3-2 Class D limits, and an advantageous component count.