PI Model Options Dialog Box
Clicking on the Model Options button in the Output PI Model dialog box opens the PI Model options dialog box which allows you to input parameters for generating the PI Spice model.
Rmax text entry: This value specifies the largest resistor allowed for inclusion in the SPICE PI model, in ohms. The default value is 1000.0 ohms.
Cmin text entry: This values specifies the smallest capacitor allowed for inclusion in a SPICE PI model in pF. The default value is 0.1 pF.
Lmax text entry: This values specifies the largest inductor allowed for inclusion in a SPICE PI model, in nH. The default value is 100.0 nH.
Kmin text entry: This values specifies the smallest coupling coefficient allowed for inclusion in a SPICE PI model; it is a dimensionless ratio. The default value is 0.01.
Rzero text entry: This value specifies the resistor to go in series with all lossless inductors, in ohms. This parameter is provided for those versions of SPICE which require inductors with some small loss, to avoid numerical difficulties. The default value of 0.0 disables this capability.
Separation (%): This value is a percentage used to select the gap between the two frequencies used to generate a SPICE model. The default value is 10%. In this case, a SPICE model is generated using the first frequency and the next highest frequency which provides a 10% gap. This continues until there are no more frequencies.
Remember settings checkbox: Turn this on if you wish to retain the values entered above for the next time the dialog box is opened.
Factory Defaults: Clicking on this button changes all the settings in this dialog box to the defaults used upon installation of the software.