ngspice

ngspice: A very useful signal circuit simulation app for building electric and electronic circuits.

ngspice is designed to be an Open source mixed-level - signal circuit simulation app and it will come in handy for users that want to build or experiment with electric and electronic circuits.

The base design of the program is based on Spice3f5, Cider1b1, and Xspice, and it was developed to improve the spice3f5 circuit simulator, while also being compatible with PSPICE and LTSPICE, but will also be able to read HSPICE device libraries .

Circuits can include diodes, transmission lines, JFETs, MOS and bipolar transistors, and even other interconnected devices, and can simulate both standard and digital circuits, from single to complex gates, regardless of the level of complexity.

ngspice is an accessible signal circuit simulation application that is very useful for suers who want to build electric and electronic circuits.