Hello,
I'm having problems understanding basic opamps, and what "decides" the gain.
I'm able to look at examples, such the models for inverting and non inverting amplifiers and etc. and calculate a gain. Basicly, I can look at previous examples and change out the nessecery variables to get the write answere. But in reality, I don't really know what I'm doing.
I don't understand exactly what decides what the gain is...? Is it the difference between the + and - terminals of the opamp? Or is it the voltage at the point where to resistors are in parallell (sorry, bad description but cant think of any better way of explaining it). Or is it different for all the different models?
When solving problems with opamps at higher levels, say for example you want to find Vout in this **broken link removed**. How would one go around doing it? Do we use those basic models, and find one that "fits" and looks simuler?
Hope someone can help me
- Psytrox
I'm having problems understanding basic opamps, and what "decides" the gain.
I'm able to look at examples, such the models for inverting and non inverting amplifiers and etc. and calculate a gain. Basicly, I can look at previous examples and change out the nessecery variables to get the write answere. But in reality, I don't really know what I'm doing.
I don't understand exactly what decides what the gain is...? Is it the difference between the + and - terminals of the opamp? Or is it the voltage at the point where to resistors are in parallell (sorry, bad description but cant think of any better way of explaining it). Or is it different for all the different models?
When solving problems with opamps at higher levels, say for example you want to find Vout in this **broken link removed**. How would one go around doing it? Do we use those basic models, and find one that "fits" and looks simuler?
Hope someone can help me
- Psytrox