Lm393 ne555 overcurrent protection problem


New member
I am trying to adjust my overcurrent protection with this well known schematic but even the slightest change in load, or just touching something on the board, even static electricity from distance just gets the protection excited with no reason. I have tried decoupling capacitors and built the same circuit on a breadboard but the result is the same. Did someone experienced the same problem? Maybe I should try another overcurrent circuit. Thank you in advance. View attachment 7520