A bridgeless interleaved power factor correction circuit, comprising: an AC input voltage source having a first input terminal and a second input terminal and providing an AC input voltage; a PFC inductor configured to receive the AC input voltage, the PFC inductor comprising four input inductors (L1a, L1b, L1c, L1d) formed as four windings on a single core, a first (L1a) and third (L1c) input inductors having first ends connected to the first terminal of the AC input voltage source, and a second (L1b) and fourth (L1d) input inductors having first ends connected to the second terminal of the AC input voltage source; first, second, third, and fourth active switches each having a control terminal receiving a respective control signal for turning the respective active switch on or off, each active switch having a first terminal connected to a second end of a respective one of the input inductors and a second terminal coupled to a first output terminal; first, second, third, and fourth rectifier elements each having an anode terminal connected to the second end of a respective one of the input inductors (L1a, L1b, L1c, L1d) and a cathode terminal connected to a second output terminal; and an output filter circuit connected across the first and second output terminals, the first and second output terminals providing a DC output voltage, wherein the first (L1a) and second (L1b) input inductors, the first and second active switches and the first and second rectifier elements form a first bridge boost converter; and the third (L1c) and fourth (L1d) input inductors, the third and fourth active switches and the third and fourth rectifier elements form a second bridge boost converter; wherein the first and second bridge boost converters are operated out of phase in response to the control signals to store energy in and to release energy from the input inductors (L1a, L1b, L1c, L1d) to generate the DC output voltage from the AC input voltage source; and wherein the direction of each of the four windings on the single core is selected as a function of the phase each input inductor (L1a, L1b, L1c, L1d), to cancel the flux from windings in a different phase. an AC input voltage source having a first input terminal and a second input terminal and providing an AC input voltage; a PFC inductor configured to receive the AC input voltage, the PFC inductor comprising four input inductors (L1a, L1b, L1c, L1d) formed as four windings on a single core, a first (L1a) and third (L1c) input inductors having first ends connected to the first terminal of the AC input voltage source, and a second (L1b) and fourth (L1d) input inductors having first ends connected to the second terminal of the AC input voltage source; first, second, third, and fourth active switches each having a control terminal receiving a respective control signal for turning the respective active switch on or off, each active switch having a first terminal connected to a second end of a respective one of the input inductors and a second terminal coupled to a first output terminal; first, second, third, and fourth rectifier elements each having an anode terminal connected to the second end of a respective one of the input inductors (L1a, L1b, L1c, L1d) and a cathode terminal connected to a second output terminal; and an output filter circuit connected across the first and second output terminals, the first and second output terminals providing a DC output voltage, wherein the first (L1a) and second (L1b) input inductors, the first and second active switches and the first and second rectifier elements form a first bridge boost converter; and the third (L1c) and fourth (L1d) input inductors, the third and fourth active switches and the third and fourth rectifier elements form a second bridge boost converter; wherein the first and second bridge boost converters are operated out of phase in response to the control signals to store energy in and to release energy from the input inductors (L1a, L1b, L1c, L1d) to generate the DC output voltage from the AC input voltage source; and wherein the direction of each of the four windings on the single core is selected as a function of the phase each input inductor (L1a, L1b, L1c, L1d), to cancel the flux from windings in a different phase.