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Measuring cell voltages of a fuel cell stack

  • US 6,140,820 A
  • Filed: 12/27/1999
  • Issued: 10/31/2000
  • Est. Priority Date: 12/27/1999
  • Status: Expired due to Term
First Claim
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1. A system usable with a stack of fuel cells that have cell terminals, comprising:

  • scanning units coupled to the stack and establishing different groups of the fuel cells, each scanning unit having a ground referenced to a different one of the cell terminals and being adapted to measure the voltages of the fuel cells in an associated one of the groups and indicate the measured voltages; and

    a circuit adapted to receive the indicated voltages from the scanning units.

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