Power supply device, electronic apparatus including same, and power supply method

A power supply device comprising:

• a rectifier circuit configured to rectify alternating current (AC) power;
• a power factor correction (PFC) converter configured to match a voltage and a current of the rectified AC power in the same phase;
• an inverter configured to transform output power of the PFC converter into power of a predetermined first size and output the power, and
• wherein the PFC converter is configured to:
• identify a harmonic component of the current rectified at the rectifier circuit, and
• match the voltage and the current of the rectified AC power in the same phase based on the identified harmonic component.

A method of controlling an electronic apparatus, the method comprising:

• rectifying alternating current (AC) power through a rectifier circuit of the electronic apparatus;
• selectively outputting the rectified AC power by using a power factor correction (PFC) converter configured to match a voltage and a current of the rectified AC power in the same phase;
• transforming an output voltage of the PFC converter into power of a predetermined first size and outputting the power;
• and
• providing a first control signal for controlling a motor of the electronic apparatus based on the power of the predetermined first size to a motor driver of the electronic apparatus,
• wherein the selectively outputting comprises:
• identifying a harmonic component of the rectified current;
• generating a second control signal for matching the voltage and the current of the rectified AC power in the same phase based on the identified harmonic component;
• and
• providing the generated second control signal to a switch configured to selectively output the rectified AC power.