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Electronic circuit for measuring series connected electrochemical cell voltages

  • US 6,411,097 B1
  • Filed: 12/20/2000
  • Issued: 06/25/2002
  • Est. Priority Date: 12/31/1998
  • Status: Expired due to Term
First Claim
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1. A voltage transfer circuit for measuring voltage signals in an energy storage device, comprising:

  • a plurality of battery segments forming the energy storage device;

    an amplifier circuit connected across one of the battery segments for converting a differential voltage to a reference current;

    a sense resistor associated with the amplifier circuit to convert the reference current to a voltage signal which is proportional to the voltage across the battery segment; and

    a voltage measurement node associated with the sensing resistor for measuring the voltage signal.

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