Power supply for power factor correction and driving method thereof

The present invention relates to a power device and a driving method for the power factor correction to improve the power factor and efficiency by reducing the current ripple of the power factor correction circuit. Power supplies for power factor correction in accordance with an embodiment of the present invention with the alternate current power source, and the power factor correction circuit by using a switch element to improve the power factor of the AC power supplied through the AC power converted into DC power, the power factor gaeseonhoe DC converting a direct current power from the desired direct-current power supply - and a DC conversion circuit, in accordance with an input voltage input to the power factor correction circuit controls the switching element to a controller for varying an output voltage of the power factor correction circuit It characterized. Such, the present invention can improve the power factor and efficiency by reducing the current pulse, a current ripple of the power factor correction circuit.