Nullator

As Nullator is known in systems theory a theoretical dipole, by the current does not flow and the no voltage drops. The Nullator provides two limiting network equations, and with which the network is determined. To compensate for the additional network equation must each Nullator a Norator exist, which is the dual dipole to Nullator. The pair of Nullator and Norator is called Nullor. A Nullor is most often used to model an ideal operational amplifier in the linear region or an ideal bipolar transistor in the forward mode. The Nullator is linear, passive, non-polarized and lossless. The Nullator is a special case of the fixator.