Lsis Co., Ltd.

Ho Sang Jin

Jae Ho Lee

Chun Suk Yang

Chan Gi Park

Provided is a power factor correction circuit correcting a power factor of AC voltage. The power factor correction circuit includes: a rectifying unit stopping rectifying the AC voltage in a transient state and generating an rectified voltage by rectifying the AC voltage in a steady state; a power factor correction unit generating a power-factor-corrected voltage by correcting the rectified voltage; a smoothing unit generating a smoothed voltage by smoothing the power-factor-corrected voltage; and an inrush current limiting unit providing a limited current by limiting an inrush current generated by the AC voltage in the transient state and stopping providing a current to the smoothing unit.

Correction circuit limiting inrush current

The present invention provides an apparatus for charging a high voltage battery of an electric vehicle by performing a control operation when the apparatus operates abnormally, the control operation discontinuing operations of a rectifier, a boost PFC (Power Factor Control) circuit and a DC-DC converter and receiving a power source from an auxiliary power supply unit, the power source charged by discharging a DC-link capacitor.

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Ansan-si, South Korea

Ho Sang Jin