Larry_80
|
For example for circuit a.) I was trying to find out the polarity, and this was how i went through it... Vin increases, Id1 increases, id2 reduces,this makes Vd2 increase?, since vd2 is connected to gate of M3(PMOS), this makes Id3 reduce?, reduction in id3 means drop across R1 reduces as a result vout reduces which makes Id2 reduce=> Positive feedback. I might be doing something wrong somewhere as u said it was negative feedback.
|