Hi guys, Im trying to simulate the circuit from this link:**broken link removed**
But the problem is I really don't get the same waveforms as the shown in the link, the output signal at the negative portion, does not reach -4.5 volts(as desired), and also the zero portion(when the pulse is at zero) is not entirely zero, some portions are negative.
what is it that I should change to get the same waveforms as in the link above?
The attached files might be of help to get what I have done so far.
But the problem is I really don't get the same waveforms as the shown in the link, the output signal at the negative portion, does not reach -4.5 volts(as desired), and also the zero portion(when the pulse is at zero) is not entirely zero, some portions are negative.
what is it that I should change to get the same waveforms as in the link above?
The attached files might be of help to get what I have done so far.