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IMPEDANCE MEASUREMENT CIRCUIT AND METHOD

  • US 20110208458A1
  • Filed: 10/08/2009
  • Published: 08/25/2011
  • Est. Priority Date: 10/16/2008
  • Status: Active Grant
First Claim
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1. An impedance measurement circuit comprising:

  • a current source arrangement (12);

    a voltage measurement arrangement (14); and

    a processor (60),wherein the circuit is operable in a two-point measurement mode and a four-point measurement mode, andwherein the processor is adapted to derive the impedance to be measured (Z) by combining the measurement voltages from the two-point and the four-point measurement modes.

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