POWER SUPPLY APPARATUS AND APPARATUS AND METHOD FOR CONTROLLING SWITCHED-MODE POWER SUPPLY (SMPS)

摘要

A power supply apparatus may include: a pulse voltage generating unit generating a pulse voltage; a direct current (DC) voltage output unit converting the pulse voltage into a DC voltage; a sensing unit sensing a level of the DC voltage and a level of an output current output from the DC voltage output unit; a calculating unit calculating an amount of output power based on the level of the DC voltage and the level of the output current sensed by the sensing unit; and a controlling unit controlling the pulse voltage generating unit based on the amount of output power calculated by the calculating unit and an amount of reference power.