I guess I don't understand it either.I can give you some hints. The output will swing until the "+" input is equal to the "-" input.
Hence my first post way back where I said the problem was gibberish.Guys, the question is pretty clearly asking the student to determine whether
Vout = A*Vin
or perhaps
Vout = A*Vin + B
applies to this circuit.
Now, since the OP is limited to the knowledge they have obtained up through mechatronics, and since I have no idea what they have been exposed to up to that point (I'm assuming "mechatronics" refers to some specific part of their curriculum) there is no way to really guide the OP toward a suitable answer.
I think you are being overly generous. Posting a circuit like this and asking questions about "amplification" teaches nothing, the term does not even apply in the conventional way. IMHO, the question is gibberish and it serves no purpose and teaches nothing.I suspect the problem was written just the way the person intended. I think the point is for the student to discover the impact of having positive feedback and it might well be a way to drive home the point that you can't just ignore the polarity of the input connections. It's hard to say because we don't know if they have gone through comparator circuits or if, perhaps, this is part of the lead-in to comparator circuits.
But the question intentionally implies something false. Seems pretty clear the person who wrote the question screwed up.If I had to grade this problem, there are a few things I would be looking for the student to recognize. Depending on the explanation they gave -- and what it reveals about the perspective from which the circuit is being viewed -- I could accept either Yes or No as a reasonable answer. If they just said Yes or No, however, they would not get a lot of credit (especially since the question specifically calls for them to back up their answer).
Lol ,, the teacher said nooo questions ..Seems pretty clear the person who wrote the question screwed up.
My point is: when a teacher gave me a question that made no sense, I went to that teacher and made him explain it so that either I would then understand what he meant or he realized he had made a mistake.
There doesn't appear to be any feedback (no connection between Vout and anything feeding back to the op-amp inputs).thanks so much guys ..
No .. We didn't study comparator circuits but I think he just mentioned the name as an example of circuits that can be made using an Op-amp ..
This is a simple problem that I solved .. It sums up everything I know about op-amp
http://i.imgur.com/7cUJm.jpg
Probably not. The assumption of a circuit short between the two opamp inputs assumes that the op-amp is in its active region (i.e., not saturated or "railed").Would I be able to solve the question with my knowledge?
by Jake Hertz
by Aaron Carman
by Jake Hertz