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METHODS OF CHARGING AUXILIARY POWER SUPPLIES IN DATA STORAGE DEVICES AND RELATED DEVICES

  • US 20120117409A1
  • Filed: 09/13/2011
  • Published: 05/10/2012
  • Est. Priority Date: 11/08/2010
  • Status: Active Grant
First Claim
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1. A method of operating a data storage device comprising:

  • powering on or hot plugging a data storage device including a semiconductor memory as a main storage unit;

    supplying a first power and a second power to the data storage device;

    supplying the first power to internal elements of the data storage device;

    charging an auxiliary power supply with the second power after the second power is applied to the data storage device and a predetermined time elapses; and

    supplying power from the auxiliary power supply to the internal elements of the data storage device upon a sudden loss of power to the data storage device.

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