Hello my friends
I try to build voltage regulator how you can see in attached figure. I removed resistors R1 and R2, so the Input/Output relationship is Vout=Vin. This scheme work properly if the circuit is not loaded or loaded with pure ohmic load with resistance higher than 10ohms. For inductive load such DC motor is unstable (output of the op amp and emitor voltage (Vout) oscilates). For pure ohmic load with resistance RL=4ohms it starts oscilate for voltages higher then 7volts. Has anybody idea how can i solve this problem?
Thank you very much