The total voltage is outside the meter range but I won't be using above 20V vary much if ever. The meter will display a - if it is over range.
I have not tested to see if there is conductance between the negative side of the +5V power supply and the negative sense input, but from the DIY panel...
I have. If I use a separate power supply for the volt meter and connect both sense inputs from the adjustable output the Voltmeter reads correct.
My problem is that I want to use the +5 and ground from the same power supply as the -12 and +12 that I want to measure.
Here is a pic of the...
Hello all,
I made a custom power supply using a standard ATX computer PSU. I took the -12V and +12V leads to get 24V then put a LM338 on the positive side for a 1.25V to 22V adjustable ouput. Works great.
I wanted to put a digital voltmeter on the adjustable output so I would know what...