Gentlemen,
I know I have a specific topic for the improved project, but I'm still trying to understand some things in the original project.
I can not understand the operation of transistor Q1 in the circuit. It has been said here in the forum that this transistor works as a protection system, could someone explain to me how this works?
Does the power supply need no protection fuse in the output? How does it protect itself in the case of a simple polarity change, for example: a battery being connected with the polarities exchanged in the output with the whole circuit without power in its entrance? Or even if it is powered, but with the polarities of a load on its output inverted? That is, is she going to protect herself against dodgems like me?
Thank you again,
Algot.