| 摘要 |
<p>According to an embodiment of the present invention, a power supply device comprises: a conversion part to convert the level of input power to transmit it to a light source; and a constant current driving part to supply a constant current to the light source using a voltage delivered from the conversion part. According to the embodiment of the present invention, the power supply device reduces the flicker of the driving current of the light source by comparing the voltage of the conversion part with the voltage of the light source and controlling the driving current, thereby stably supplying the driving current to the light source.</p> |
