×

DC POWER SUPPLY SYSTEM AND OUTPUT CONTROL METHOD

  • US 20120019210A1
  • Filed: 04/14/2010
  • Published: 01/26/2012
  • Est. Priority Date: 04/15/2009
  • Status: Abandoned Application
First Claim
Patent Images

1. A DC power supply system comprising:

  • a DC load whose power consumption varies;

    a rectifying unit that rectifies and converts AC power into DC power;

    a secondary battery to be charged upon receiving the DC power supplied from said rectifying unit;

    an output suppression time zone setting unit that sets an output suppression time zone defined as a desired time zone;

    a threshold storage unit that stores, as a threshold, suppliable power per unit time from said secondary battery to said DC load during the output suppression time zone;

    a power consumption measuring unit that measures a current power consumption of said DC load;

    an output control unit that, during the output suppression time zone, compares the threshold with the current power consumption of said DC load measured by said power consumption measuring unit, if the current power consumption of said DC load is not more than the threshold, stops power supply from said rectifying unit to said DC load and covers the power consumption only by power accumulated in said secondary battery, and if the current power consumption of said DC load is more than the threshold, covers the power consumption up to the threshold by the power accumulated in said secondary battery and covers the power consumption more than the threshold by power from said rectifying unit.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×