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POWER CONTROL SYSTEM

  • US 20160274630A1
  • Filed: 05/18/2015
  • Published: 09/22/2016
  • Est. Priority Date: 03/20/2015
  • Status: Active Grant
First Claim
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1. A power control system comprising:

  • a first comparison unit configured to receive a switch voltage and a first reference voltage, compare the switch voltage with the first reference voltage and output a first comparison voltage;

    a second comparison unit configured to receive the first comparison voltage and a second reference voltage, compare the first comparison voltage with the second reference voltage and output a second comparison voltage;

    a switching unit configured to receive the second comparison voltage and convert a power control voltage to the switch voltage in dependence on the second comparison voltage; and

    a power supply unit configured to receive the switch voltage and output a working voltage to wake up a motherboard in dependence on the switch voltage, wherein the power supply unit only wakes up the motherboard when the power supply unit is completely discharged.

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