Hi all,
I built a current sence circuit which trips out at about 5amps using a a
0.1R Ressitor, Which should give around 400mV, which works fine. The problem is I can't for the life of me remember how I worked out the resistor value. I would assume that 0.047R would give me 400mV drop at 10amps though thats only a guess. So how do you work it out ?thanks, Chris