Ngspice Examples. Active capacitor measurement in this crude implementation of a circuit described by marc kodrnja. Since the dependent voltage source e isn t considered a load to voltage source v 1 spice interprets v 1 to be open circuited and will refuse to analyze it.
2018 06 28 holger vogt. Note that an op amp is a pre existing circuit and not a device. Example noninverting op amp circuit.
The first entry is a tutorial dedicated to ngspice newbies.
The digital circuit is described in verilog synthesized and translated to xspice by yosys and is finally combined with an analog circuit in an ngspice netlist. Ng start exe is a ms windows application loading ngspice dll dynamically. If you are interested in getting more in depth information you may refer to our book page or to a list of third party tutorials. The fix is to connect r bogus in parallel with v 1 to act as a dc load.
