Fuel cell power system and method of controlling a fuel cell power system
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United States of America Patent
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Feb 5, 2008
Grant Date -
Oct 7, 2004
app pub date -
Apr 22, 2004
filing date -
May 17, 2000
priority date (Note) -
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Abstract
A fuel cell power system includes a fuel cell which has an optimal voltage; an energy storage device having a nominal voltage substantially similar to the optimal voltage of the fuel cell; and an electrical switch that, in operation, selectively electrically couples the fuel cell and the energy storage device to charge the energy storage device. A method includes providing a fuel cell having a nominal voltage; providing an energy storage device having a nominal voltage which is substantially similar to the nominal voltage of the fuel cell and electrically coupling the energy storage device to a load; and selectively electrically coupling the fuel cell to the energy storage device to substantially maintain the energy storage device above a predetermined voltage threshold.
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