Negative Impedance Converter. V in a v in v o v o r r nr c f nc f c apacitance m ultiplier 1 sr nc 1 1 a 1 v v in f o f o nrc 1 9. Negative impedance converter nic and applications 1.
The nic shown in figure 1 uses an op amp and resistors to produce an input impedance of z in z. The reality of the situation is that we get another practical application of nrcs by considering them as negative impedance converters which we should probably start calling nics. This is achieved by adding or subtracting excessive varying voltage in series to the voltage drop across an equivalent positive impedance.
The negative impedance converter nic is a one port op amp circuit acting as a negative load which injects energy into circuits in contrast to an ordinary load that consumes energy from them.
If we can predict i1 for a given vin then we can use ohm s law to calculate the effective resistance rin seen by the voltage source at vin. The reality of the situation is that we get another practical application of nrcs by considering them as negative impedance converters which we should probably start calling nics. The negative impedance converter nic is a one port op amp circuit acting as a negative load which injects energy into circuits in contrast to an ordinary load that consumes energy from them. Negative impedance converter nic and applications 1.
