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

Configuration

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:

R_{\text{in}}=-R_{3}{\frac {R_{1}}{R_{2}}}

In general, the components $R_{1}$ , $R_{2}$ , and $R_{3}$ need not be resistors; they can be any component that can be described with an impedance.

This article is issued from Wikibooks. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.