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Voltage supplying apparatus using a fuel cell

  • US 7,557,532 B2
  • Filed: 10/02/2006
  • Issued: 07/07/2009
  • Est. Priority Date: 09/27/2005
  • Status: Expired due to Fees
First Claim
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1. A voltage supplying apparatus, used to output a total output voltage, comprising:

  • a fuel cell used to output a first output voltage;

    a DC-DC Voltage Converter used to receive said first output voltage and perform a conversion of said first output voltage to a second output voltage, where a positive input terminal of said DC-DC Voltage Converter and a negative input terminal of said DC-DC Voltage Converter are electrically connected with a positive output terminal of said fuel cell and a negative output terminal of said fuel cell respectively, a positive output terminal of said DC-DC Voltage Converter is electrically connected with a negative output terminal of said fuel cell, and a positive output terminal of said fuel cell with a negative output terminal of said DC-DC Voltage Converter are used to supply said total output voltage, wherein said total output voltage equal to the sum of the first output voltage and the second output voltage; and

    a control circuit used to control the voltage conversion of said DC-DC Voltage Converter.

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