| 摘要 |
A power control system for a display apparatus comprises: a reactor, including a pair of inductors, for calibrating a power factor of an AC voltage supplied from an external source; a rectifier for rectifying the AC voltage having the power factor calibrated by the reactor; a power supply for outputting the rectified voltage with a plurality of voltage levels so as to allow them to be supplied to a power-consuming component; a switch unit for selectively connecting the pair of inductors in series or in parallel based on a driving power according to the levels of the AC voltage supplied to the reactor; and a microcomputer for determining whether a DPMS is in an off mode so as to cut off the power supply to the component, and for cutting off the power supply to the switch unit when it is in the off mode. With this configuration, since the power supply to the switch unit is cut off in the off mode, power consumption in the off mode can be minimized. A power control method for a display apparatus comprises steps corresponding to the functions described above relative to the power control system.
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