Q
qwerty
- Jan 1, 1970
- 0
I've been reading about some basic op-amp circuits. The book has the
circuit and then it gives the analysis. The analysis doesn't make
much sense to me. For example, it says that when the op-amp is
working in it's linear area (sorry if the translation from the book's
lanugage is sloppy) the two inputs have the same voltage.
But how do we know that the op-amp is working in its linear area? I'm
trying the circuits on SPICE and it seems that if I use a circuit
with feedback (http://img58.imageshack.us/img58/4422/opampgm9.png)
the op-amp will work in its linear area, but if I remove the feedback
then it won't. Why?
Should I worry too much about those details or should I just learn
the circuits and move on?
circuit and then it gives the analysis. The analysis doesn't make
much sense to me. For example, it says that when the op-amp is
working in it's linear area (sorry if the translation from the book's
lanugage is sloppy) the two inputs have the same voltage.
But how do we know that the op-amp is working in its linear area? I'm
trying the circuits on SPICE and it seems that if I use a circuit
with feedback (http://img58.imageshack.us/img58/4422/opampgm9.png)
the op-amp will work in its linear area, but if I remove the feedback
then it won't. Why?
Should I worry too much about those details or should I just learn
the circuits and move on?