mario.chillemi wrote:
thank you Mr Bordodynov,the circuit is perfect.Can I use
".AC DEC frequece1 frequence2 frequence3" to make a study in frequence?
Yes. You will need to assign AC values to one or both of the sources,
V3 or V2. Right-click on the voltage source, click the "Advanced"
button, find the "Small signal AC analysis" area, and fill in a
non-zero value for the "AC Amplitude". (Note that AC analysis and
Transient analysis are totally separate from one another, so don't
bother with the PULSE, SINE, etc. area unless you intend to do a
Transient analysis instead.)
You could give AC values to both V3 and V2, in which case you might
want one of them to have AC Phase = 180 degrees (balanced input).
Note that the capacitance values in Bordodynov's version are rather
large. The MOSFETs default to 20 by 20 microns, which is old
technology.
Regards,
Andy
