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BATTERY FAULT TOLERANT ARCHITECTURE FOR CELL FAILURE MODES SERIES BYPASS CIRCUIT

  • US 20120091964A1
  • Filed: 10/14/2010
  • Published: 04/19/2012
  • Est. Priority Date: 10/14/2010
  • Status: Active Grant
First Claim
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1. A battery by-pass circuit comprising:

  • a battery including a plurality of battery cells electrically coupled in series;

    a first switch electrically coupled in series with at least one battery cell;

    a by-pass line electrically coupled around the at least one battery cell;

    a second switch electrically coupled within the by-pass line and electrically coupled in parallel with the at least one battery cell; and

    a controller being configured to control the position of the first and second switches, said controller closing the first switch and opening the second switch during normal operation of the at least one battery cell and opening the first switch and closing the second switch during a performance loss of the at least one battery cell.

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