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incorect ac simulaton

Hi!

AC:

Making ac simulation of simple source-R-C-gnd serial circuit on eSim i always get flat curve at 0v.

Ngspice return, plot of Vsource(?!) and Vc, wich are **both** zero ...

Why is v source zero?

I tried with ac, sine and other sources, always the same.

DC:

If i add resistor R2 in paralel with C, then i get correct values for input Vs and output V_{R2}, for the case of sweep of value of R2.

With that resistor in paralel with C, for ac analisis Vc and Vs are again zero.

TRANSIENT:

Second nag is that making transient simulation i get already from ngspice one dimensiolal graf, values have extension only in y directon.

For all specified cases I have no error mesages from ngspice.

Thanks

Matjaz

eSim

__Answers:__

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Hi,

Can you please share the content of your *.cir.out file ?

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