| 摘要 |
In a power supply control apparatus for controlling turn-on/turn-off of power of a main power supply to a load via a switch section, a drive signal producing section produces a drive signal for controlling ON/OFF operations of the switch section, based on an activation signal output from an activating section. A standby power supply supplies operation power to the activating section 11 and the drive signal producing section. A power failure monitoring section produces an energization signal indicative of a result of monitoring of an output of the main power supply, and outputs the signal to the activating section. The activating section outputs the activation signal based on the energization signal.
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