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Thanks a lot guys!!!
I got it now, so: i choosed my Vi=5V and the output current (Ie) that i wanted to obtain (≈20mA), because this circuit it's an U-I Converter. AND i got the Ie to 18.52mA, which is very ok and i'm happy.
Now i have calculate the VCE on the transistor (with formulas and...
Ok, so... I changed a lot of things. Now I'm confused about the Vi: doesn't matter what value i choose for Vi, the output of the opamp is the same (12v like his supply)..
Hello everyone, I have this problem where i need to propose the supply/input voltage and the output current (that I want to obtain) and then to calculate and choose the correct components so my circuit can work.
So, I choose the supply to 5V and the output that i want to obtain to 20mA. From...
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