hi, please help me, i have a power supply with output voltage range from 0 to 32 V, and the interval is 1mV per change, and i can give the value of voltage (desire state) to the power supply via keypad, but the output current of the power supply is small since the last stage is an op amp. i want to boost the output current, so, i tried using 2N3055 with current booster configuration, but i found that while the inverting input of op amp connected to the emitter of 2n3055, the V+ become different from V-, and the 3055 is in cut off. so i tried bias the transistor with voltage divider bias, i can boost the output current with that configuration, and i can adjust the output current by change the Ib, but while i change the resistance, the output voltage changed, please help me, i want to boost the output current without any changes of the input voltage.. thanks you..