Re: [Qucs-help] Subcircuit with parameters

[Stefan J. <st...@gr...>]

Am Do, 9.03.2006, 13:31, schrieb Sergio Callegari:

>>> just a couple of quick questions...
>>>
>>> 1) Is it possible to have a subcircuit with parameters in Qucs?
>>> I would like to make a generic Op-amp type building block, including
>>> smooth passing from the high-gain to the saturation region and a single
>>> pole.  When instantiating the subcircuit I would like to be able to
>>> fill-in the DC gain and pole.
>>>
>>
>> Not yet.  It's already on our todo list for some time.
>>
> Thank you very much. This change will be more than welcome when ready.
> Indeed, it is indispensable to build simplified behavioural models of
> building blocks such as OpAmps, OTAs, etc... which in turn are extremely
> useful in education.
> With them it is possible to show the results of second-order effects
> introducing them one by one.
> Another very welcome improvement would be the addition of nonlinear
> controlled sources, with the ability of specifying arbitrary algebraic
> input-output relations (e.g. V=tanh(V(foo)-V(bar)) )

*sigh*.  so much work to do...

anyway.  your last request is already somewhere on my todo list...

>>> 2) Is it possible to convert a subcircuit into a library part?
>>>
>>
>>
> With this and the above, it will be possible for anyone to contribute to
> the functionality of qucs, by providing either physical or abstract
> circuit building blocks.

thanks for your comments,
  stefan.

...a bit overloaded.