Templates for ngspice

[tomhajjar]

I'm slowly making a "Template" folder with analysis examples including Nutmeg equations needed to plot data.

[tomhajjar]

I've improved most of the examples in the project and added more. New submissions are welcomed.

[ra3xdh]

I have uploaded Ngspice templates to examples/templates_ngspice subdirectory. Closing as completed. Thanks for the contribution!

[iwbnwif]

Thank you, these templates are really useful. A few observations:

1. AC_TRAN_FOUR_OpAmp.sch has the "open data display after simulation" checked even though there are no charts on the .dpl page.
2. genericopa_sub.sch is missing file genericopa.cir
3. Pwr-Amp_wingspread_analysis.sch doesn't appear to have a 'dd' label, thus v(dd) is invalid?
4. S-parameter_file_analysis.sch is missing FL455kHz.s2p

[tomhajjar]

The "missing" files including the dpl file were in the original zip. "dd" is in the nutmeg equation.

[ra3xdh]

genericopa_sub.sch is missing file genericopa.cir

I have added missing file

S-parameter_file_analysis.sch is missing FL455kHz.s2p

I excluded this schematic from examples pack. The attached s2p file was about 1Mb size. It's better avoid to keep such large files in git.

[iwbnwif]

"dd" is in the nutmeg equation.

Ah, sorry I see it now. Should the Nutmeg Simulation=SW1 instead of =dc?

[tomhajjar]

@ra3xdh

I redid the s-parameter file example to use the s-parameter file "137MHz_BPF.s2p". This is the same filter in S-parameter_passive_analysis.sch so is a better example. The files are also smaller.

On a side note, 137MHz_BPF.s2p was created by Qucs using qucsconv on the original LC filter. It's a feature Qucs-S doesn't have.

Templates_ngspice_prj.zip

[iwbnwif]

@tomhajjar
Shouldn't this be Simulation=SW1?

[tomhajjar]

I created the schematic from the ngspice example, 100W.sp. I simplified the analysis to 8 Ohms.

Vadim wrote the Nutmeg equations and Parameter sweep entries and got it to work.

See #405.