I've the following analog amplifier:
The Vin is the input voltage of the amplifier and the V- system and the V+ system are the two points where I can controll the motor with the amplifier.
The questions I've are:
- Has this amplifier a specific name?;
- I think that the resistor R1 is a resistor to limit the current, but how does it do that?;
- I think that R2 is a resistor to controll the voltage at the input of the voltage follower, but I can I caluclate that volateg?