Re: Switching PSU problem
The PSU case and the 0V ground rail of my PCBs are all connected to earth through the 3-pin mains plug.
If I put a multimeter probe on the PSU case and the other probe on my PCB ground it measures over 1,300V.
With the mains disconnected I can confirm that there is definitely continuity between these points and with less resistance than my multimeter will measure.
one or more of those statements cannot be true
power = voltage squared divided by resisence
if the case to gnd rail resistence was 0.1 ohms then
{ridiculous amount of power} 16.9 mega watts = 1300v x 1300v / .1 ohm
where is all the heat ?
Warning I'm not a teacher
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