GFT summary,
GFT manual
In this analysis (actual GFTee.SCP file), we use a behavioral multiplexer within a subcircuit named
Xgft to reconfigure the null parameters for each of the 13 AC simulations.
To make the script work in a general sense, it is necessary for the
user to ALWAYS name the GFT model Xgft. There are 16 GFT models to choose
from. Look in GFT templates to see how
to match the model with the appropriate template. The variations account
for different methods of signal injection and input/output signal variation
for voltage gain, current gain, transadmittance and transimpedance. The GFT template is used to
get an accurate measure of a control system characteristic equations,
including "the" loop gain and closed loop gain even when the
loop cut or injection point experiences significant loading. After running
the simulation, you can plot the various control system parameters using
the IntuScope calulator\GFT menu. The following examples are available
only with the full ICAP/4 versions, they do not ship with the demo:
Voltage
Gain, Current
Gain, Transimpedance,
Transadmittance
Other simulation templates for the GFT include GFTE,
GFT, GFTJ, GFTJJ,
GFTS and GFTTIME
