| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a power supply control apparatus which can supply, when a load which is connected to an uninterruptible power supply to receive the power therefrom is in the function having a large load current in the power failure condition, the power from the uninterruptible power supply to such load until the operation of such function is completed and also can reduce the rated power capacity of the uninterruptible power supply. SOLUTION: This power supply control apparatus comprises a current determining section for determining an amplitude of a load current, a frequency determining section for determining the frequency of power, a power determining section for determining supply of power, and a switch section for turning ON and OFF the power of the uninterruptible power supply to a load. Consequently, when the power supply fails, an AC power supplied from the uninterruptible power supply is supplied only to a load in the function where a load current is large immediately before the power fails during the power failure until such function is completed.</p> |
