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Network for minimizing current imbalances in a faradaic battery

  • US 5,313,152 A
  • Filed: 06/19/1992
  • Issued: 05/17/1994
  • Est. Priority Date: 06/19/1992
  • Status: Expired due to Term
First Claim
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1. A circuit for connecting a faradaic battery with means for monitoring the condition of the battery, said battery comprising a plurality of serially connected modules (VS1 . . . VSn) each having positive and negative terminals, said battery having a reference node establishing a reference voltage at one of the terminals of one of the modules (VS1 . . . VSn), said circuit comprising:

  • a plurality of voltage divider networks (VD1 . . . VDn), each including a monitoring node and first and second terminating nodes;

    one terminating node of each of said networks being connected to said reference node;

    the other terminating node of each of said networks being connected to the other of said terminals of respective ones of said modules (VS1 . . . VSn) to draw currents (I1 . . . In) respectively;

    compensating network means including resistors (CR1 . . . CRn) respectively connecting said other of said terminals of respective ones of said modules (VS1 . . . VSn-1) to the other of said terminals of the last of said serially connected modules (VSn), the resistors (CR1 . . . CRn) being respectively sized to draw currents substantially equal to the respective currents (I1 . . . In-1);

    whereby the current drawn by the compensating network means of the battery is substantially uniform and equal to the sum of currents flowing in the divider networks (VD1 . . . VDn).

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