Finite Element Method Magnetics

LTSpice is an excellent SPICE circuit simulator available free of charge from LTC. However, I some parts that I like to use are not included as standard components. The purpose of this page is to provide download links to LTSpice models these parts to save myself the future effort of searching for them. The .sub, .lib, or .mod file goes in the LTSpice/lib/sub directory, the .asy files go in the LTSpice/lib/sym directory (or a subdirectory such as opamps, if appropriate):

• TL431 and TLV431 shunt regulators.
• LM339 quad comparator.
• LM324 quad op amp.
• TL082 wide bandwidth dual JFET opamp.