In LTspice XVIIx64 I want to create a subcircuit and use it in other schematics but the content of the subcircuit should not be visible to other users. The users are students who are advised to find out the content/components of a filter or resonant circuit by doing AC analysis.
I know how to create subcircuits in LTSpice and how to define symbols and use them in other schematics. However there is the disadvantage the I have to supply symbol and corresponding asy-Schematic in order that the symbol can be used in the top schematic. By suppling the asy-schematic the components values can be seen by opening the file. There is also the -encrypt function in LTspice as a xviix64.exe execution command and I am able to encrypt the underlining asy schematic. Creating a symbol for it and placing it in the top level schematic results in simulation that LTspice says: "Trouble generating netlist for SPICE run".
Are there any other possibilities to get this working?