Ideal operational amplifier
The Op-Amp block models an ideal operational amplifier (op-amp). The figure shows the implementation schematic.
The block implementation is based on the following assumptions:
The ideal op-amp gain A is assumed to be infinite
Then, for finite output, must have V1 = 0
Ideal op-amp also implies current from p to n is zero (i1 = 0)
These assumptions result in the following equations for the block:
equations v1 == p.v - n.v; v1 == 0; i1 == 0; end
For more information, click the Source code link in the block dialog box.
The Op-Amp block has no parameters.
You can initialize the Current into output node variable prior to simulation. For more information, see About Variable Initialization.