Patent ID: 8654552

Claim:
An interleaved type power factor correction circuit, comprising: a rectifying unit configured to rectify a commercial alternating current (AC) power; a transformer including first and second inductor windings configured to individually receive the rectified power from the rectifying unit and to perform energy charge and discharge according to a switching operation, a bobbin part including a bobbin body having a predetermined length, a through hole penetrating the bobbin body in a lengthwise direction of the bobbin body, and a winding area provided on an outer circumferential surface of the bobbin body and having the first and second inductor windings wound therearound and a partition physically separating the first and second inductor windings, and a core part including a pair of cores having a first leg formed by magnetic coupling through the through hole of the bobbin part and second and third legs formed by magnetic coupling without passing through the through hole; a switching unit configured to individually switch the power transmitted to the first and second inductor windings; a controlling unit configured to control the switching operation of the switching unit in order to allow a phase difference between a current and a voltage of the switched power to satisfy a predetermined phase difference; and a stabilizing unit configured to stabilize the switched power from the switching unit.