ngspice

Open-source SPICE circuit simulator for analog and digital circuit analysis

brewmacoslinux
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Source

About

Spice circuit simulator

Commands

ngspice

Examples

Run a SPICE netlist simulation in batch mode$ ngspice -b circuit.cir -o output.log
Interactive simulation with command-line input$ ngspice circuit.cir
Execute SPICE commands from a script file$ ngspice -b script.sp