Re: [Ngspice-users] Newbie question on simulating a mosfet inverter

[gary <li...@la...>]

You get a warning about the lack of a DC value on the pulse statement, 
but not an error. It assumes the initial value of the pulse. In your 
simulation, you start at 5V, but the pulse is set up to start at zero. 
When you run the simulation, the input starts at zero for the transient. 
  I already shut down that linux window, but I suspect the operation 
point was computed with vin=5v. If you insist on using the DC in the 
line, I'd set it to zero.


Daniel Cabrini Hauagge wrote:
> Gary,
> 
> Thanks for the advice but it was of no help. I've put the DC voltage
> at Vgs because
> ngspice was complaining that there was none.