| 摘要 |
The present invention relates to a power supply device and, more specifically, to a power supply device which can effectively remove harmonics of an AC input and effectively improve the power conversion efficiency by improving a power factor at the same time; does not require an additional filter to an external device receiving a constant voltage and a constant current by removing the harmonic from an output of the constant voltage and the constant current; and stops the operation of a converter portion of an input side when an abnormal current occurs, in order to protect the device. |
