Hi,
I am studying electronics and am trying to figure out how to use transistors. I have a TIP 31 NPN transistor that I am using to sink the DC motor load (like the image attached). I don't have a resistor from the PIC to the base.
I tested it and it works just fine. When my PIC input goes high it runs, when it goes low it stops just as anticipated. HOWEVER, the motor moves slowly. I don't get it. Can someone help me understand what is going on?
I've read many many threads regarding this topic, but I can't seem to answer my question.
Thanks