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APPARATUS FOR PORTABLE FUEL CELLS AND OPERATING METHOD THEREOF

  • US 20100021775A1
  • Filed: 12/08/2006
  • Published: 01/28/2010
  • Est. Priority Date: 10/26/2006
  • Status: Active Grant
First Claim
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1. An apparatus for portable fuel cell comprising:

  • a fuel cell comprising a unit cell or a stack of the unit cells;

    a secondary battery which is chargeable and dischargeable; and

    a power management system (PMS) having a DC-DC converter, the PMS receiving power produced from the fuel cell and supplying the power to an appliance, being connected with the secondary battery to receive or supply power, supplying power for operating the fuel cell, measuring voltage of the fuel cell and regulating power supply based on the measurement,wherein the PMS is supplied with power from the fuel cell at a stabilization state that voltage measured from the fuel cell reaches a constant state after initial operation of the fuel cell.

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