| 摘要 |
<p>A power supply control apparatus and method are provided. The apparatus includes a controller (100) outputting a first pulse width modulation (PWM) signal for supplying an electric power and a second PWM signal to be compared to the first PWM signal, a first PWM signal input unit (200) converting the second PWM signal to a direct current (DC) signal, a second PWM signal input unit (300) receiving the converted second PWM signal, a comparator (400) comparing the first PWM signal and the converted second PWM signal, a switching unit (500) generating a waveform having a voltage according to the comparison result of the comparator (400), a transformer (600) transforming the voltage of the generated pulse waveform according to the switching result of the switching unit (500) and a rectifier and voltage divider (700) for rectifying and voltage-dividing the transforming result of the transformer (600), wherein the controller (100) adjusts the second PWM signal by receiving the rectifying and voltage-dividing result of the rectifier & voltage divider.</p> |
