Encryption is used to protect some perceived commercial advantage of a particular SPICE version. The exceptions are the encrypted files provided by some publishers. LTspice can, however, run PSpice semiconductor and behavioral models and is generally a much higher performance simulator, so you might move your PSpice simulations to LTspice. I believe, for example, that LTSpice can read and process model files that use the PSPICE extensions. If you can open a SPICE model file with a standard text editor (such as 'Notepad++) then it can probably be used directly, or readily converted, for any SPICE-based simulator. After a little study of the original SPICE syntax, most of the SPICE model files intended for a particular version of SPICE can be converted to other versions. Fortunately, a true SPICE model file, or netlist file, is (like KiCAD’s files) human-readable. SPICE models that exploit such alterations may, or may not, be compatible with SPICE versions published by other companies. Most of these included some kind of “improvements”, “supplements”, “additions”, or “extensions” of the original SPICE program. Numerous commercial versions of SPICE have been developed and released (and, in some cases, abandoned) over that time span. (I believe the first PUBLIC release was in 1972 or '73.) That makes it almost half a century old! I won’t go into all the ways computing has changed over those five decades, but it’s a tribute to the program’s original authors that it remains a viable piece of software today. The SPICE circuit simulation program originated in the early 1970’s. The web is replete with PSpice models but Spice Models need more effort to search and include in the schematics. Requesting clarifications so that I can get over this job of having to find very specific Spice Models. How can that be used?Ĭan I simulate in LTSpice and bring the netlist to PCBNew? That way, I can ensure fewer errors in the PCB design. Why does the Generate NetList dialog have a Plugin button?Īgain in the Generate Netlist window, there is a simulation command. lib) and use it as a Spice model for a vendor provided component?

How should encrypted models be used in KiCAD? Can they be deciphered by the simulator (or the plugin)?ĭo all PSPice models work with ngspice? What I infer from the web is that PSpice models are for the PSpice simulators while ngspice is based on Spice3.Ĭan I take an LTSpice model from the LTSpice libraries and rename it (from. I have several questions about using the ngspice simulator.

Load a macspice file