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Power cell system with means for detecting a discontinuity

  • US 8,907,676 B2
  • Filed: 03/18/2010
  • Issued: 12/09/2014
  • Est. Priority Date: 03/18/2009
  • Status: Active Grant
First Claim
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1. A device for detecting a discontinuity in electrical connections of series connected power cells of a power cell system, the power cell system having a plurality of n power cells, the device for detecting comprising:

  • a plurality of n first resistances,each of the plurality of n first resistances being connected as a shunt resistor to an associated power cell so that the n power cells and the n first resistances form a ladder circuit,n electronic filters, an input of each electronic filter having a first connection to a first node of the ladder circuit between two of the first resistances, each electronic filter comprising a second resistance and a capacitor connected to the second resistance,n switches, each of the n switches being connected to an output of an electronic filter,wherein an output of each electronic filter is connected to a voltage monitoring unit, the voltage monitoring unit measuring a dynamic voltage response of an output of the correspondent electronic filter.

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