Patent ID: 8271815

Claim:
A standby power control device capable of connecting a signal output terminal or a voltage output terminal of a computer for controlling an ON/OFF state of a power of the computer and a plurality of peripheral devices thereof, the standby power control device comprising: a power input unit, being connected to an external AC power source; a power transformation unit, being coupled to the power input unit for transforming an AC power of the external AC power source to DC power; a switching unit, being coupled to the power transformation unit and having a start button and an indication light, wherein to press the start button makes the DC power be conducted to a next circuit stage of the switching unit and the indication light be turned on simultaneously; a start control unit, being coupled to the switching unit and the power transformation unit, the start control unit having a time capacitor and a start transistor, wherein after pressing the start button the DC power is able to charge the time capacitor to produce a trigger voltage, and then the trigger voltage turning on the start transistor to carry the DC power out; a power control unit, being coupled to the power input unit, the power transformation unit and the start control unit, the power control unit being capable of controlling the output of the AC power of the external AC power source; a power output unit, being coupled to the power input unit and the start control unit, the power output unit being able to receive the external AC power so as to facilitate the computer and the plurality of peripheral devices to obtain the AC power by connecting to the power output unit; a micro-process unit, being connected to the signal output terminal and coupled to the start control unit, wherein when the computer is booted, the signal output terminal outputting a boot signal to the micro-process unit, and then the micro-process unit outputting a voltage signal to the start control unit to continuously turn on the start transistor, when the computer is shut down, the micro-process receiving a shut down signal from the signal output terminal and then the micro-process stopping to output the voltage signal to the start control unit, so that the power control unit stops the input of the external AC power, a standby power of the computer and the peripheral devices being turned off automatically; a switching connection aperture, being connected to the switching unit via a switching connection line, so that the switching unit is capable of being placed outside of the standby power control device; and a voltage input plug, being connected to the micro-process unit or the transformation connection unit to introduce the voltage signal into the start control unit through the voltage connection line.