Electronics/Op-Amps/Non Linear Configurations/Negative Impedance Converter

Configuration

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Operation

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Creates a resistor having a negative value for any signal generator

  • In this case, the ratio between the input voltage and the input current (thus the input resistance) is given by:
 

In general, the components  ,  , and   need not be resistors; they can be any component that can be described with an impedance.