I was trying set a current limit for my bench top power suplly by shorting the input and output cables but then this happened
Is 4.2 volt reading on a wire normal or is my supply broken. (I used crocodile clips)
I was trying set a current limit for my bench top power suplly by shorting the input and output cables but then this happened
Is 4.2 volt reading on a wire normal or is my supply broken. (I used crocodile clips)
That way you are short-circuiting the power source. If that is of good quality, the internal protections will have come into operation, if not, you have been able to burn it.
To correctly perform this test, place a power resistor on that cable and make measurements on it, comparing them with what the source indicates.
Greetings.
Thanks for the answer but in this video he said " The way we set the current limit is shorting the leads together.". (in 2.43)
Is he wrong?
looks normal, what is that you are concerned about? with current dial you can set max current now
Thanks for the reply,
I am worried because the cable gets very hot. I can t touch the cable while setting the current. After gonpezzi replied I measured the cable resistance with four wire resistance measurement technique and measured the resistance of this cable 1 ohms also I measured another cable and that was 20 milliohms. The other cable dindn't get hot at all. Is the resistance the real problem here.
This topic was automatically closed 120 days after the last reply. New replies are no longer allowed.