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Data protective receptacle with power saving function

  • US 6,396,166 B1
  • Filed: 11/23/1999
  • Issued: 05/28/2002
  • Est. Priority Date: 09/22/1999
  • Status: Expired due to Fees
First Claim
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1. A data protective receptacle with power saving function, comprising:

  • power control means connected with one of two alternating-current power lines supplying power to a main device and at least one peripheral appliance, said power control means for sensing a presence of a leakage current between a peripheral appliance and one of the two power lines and generating a signal to control the power being supplied to said at least one peripheral appliance and a signal for controlling the power supplied to the main device;

    a diode for bridge-rectifying leakage current sensed by said peripheral appliance power control means;

    an amplifier for amplifying the direct current voltage which is bridge-rectified by said diode to a given level;

    a first resistance and a second resistance for setting a reference voltage by changing the level of the DC voltage supplied from the outside;

    a comparator for comparing said set reference voltage with said voltage outputted from the amplifier and outputting the comparative results;

    a SCR for controlling the current of a relay coil according to the outputted signal from said comparator and generating said peripheral appliance power control signal according to the outputted results from said comparator;

    power switch means for controlling the AC power lines to be on or off according to said main system power control signal as generated by said power control means;

    a peripheral appliance power control means for controlling the AC power supplied to said at least one peripheral appliance according to the peripheral appliance power control signal as generated by said power control means;

    said power switch means comprising, respectively, in a hot line and a neutral line of the AC power lines and including a first power switch and a second power switch which switches can be on or off separately according to the leakage current of the main system power control signal outputted by said power control means; and

    said power switch means causing said first power switch and said second power switch to be on or off at any time intervals sequentially when the power control signal generated by said power control means is the on-signal.

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