I saw that you had said "In the past I was using ngspice, but I was
tired of making circuit netlists by hand."
If you install all of the gEDA package you can use gschem for
schematic capture and export a spice netlist.
You can then run this in ngspice or gnucap
On 27 June 2011 14:30, Andy Fierman <andyfierman@...> wrote:
> Oops. My misunderstanding.
> If K=1 is invalid then an ideal AC transformer cannot be made using
> the mutual inductors. Hence, isn't that a case for keeping the ideal
> DC transformer? Then an ideal AC transformer can be realised by
> putting an inductor across the primary.
> Even so this is not a complete solution because any dc resistance
> added to this inductor would then generate a DC output from the
> secondary for a DC input to the primary.
> Would a preferred solution not be to allow the range for K to =+1 and -1?
> I know QUCS is not SPICE but most other simulators allow k=+/-1.
> On 27 June 2011 14:13, Carsten Koegler <ckoegler@...> wrote:
>> Hi Andy,
>>> I have found on QUCS 0.0.16 that the mutual inductor model will not
>>> allow k=1 even though the error message when setting k=1 states that
>>> k=1 is valid:
>>> "checker error, value of `k' (1) is out of range `]-1,1[' in `MUT:Tr1'".
>> The error message states, that -1 and 1 are invalid. The endpoint of the interval are excluded.