On Wed, Jun 20, 2012 at 1:18 PM, V G <x.solarwind.x@gmail.com> wrote:

> On Wed, Jun 20, 2012 at 8:09 AM, V G <x.solarwind.x@gmail.com> wrote:
>
> > Hi all,
> >
> > In LTspice, for transient analysis (NOT frequency domain analysis), how
> > would I create a voltage or current source that linearly rises? It
> doesn't
> > have to be repetitive.
> >
> > For example, I want to create a voltage source that steadily rises 1V/s=
,
> > and a current source that pushes an increasing 1A/s to test transient
> > inductor behaviour.
> >
>
>
> Update: please ignore, I figured out another way. Not the ideal way, but =
it
> will do. - Using a PWL directive like this: PWL(0 0 10 10)
>
>
Use the pulse setting, and do something like ths:

Vinitial =3D 0V
Von =3D 10V
Tdelay =3D 0s
Trise =3D 10s
Tfall =3D 1s
Ton =3D 10s
Tperiod =3D 11s
Ncycles =3D 1

Then just plot from 0 to 10s in the time domain and you should see the
source rising by 1V/s.
--=20
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