POWER SUPPLY AND APPARATUS COMPRISING THE SAME

摘要

According to an embodiment of the present invention, a power supply device controls a plurality of power factor improvement circuits in response to a load information signal inputted from the outside, and comprises: a control signal generation unit to output a control signal in response to the load information signal inputted from the outside; a control unit to output a first gate signal or output the first gate signal and a second gate signal in response to the control signal; a first correction power supply unit to operate in response to the first gate signal; and a second correction power supply unit to operate in response to the second gate signal.