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Author Topic: Switching power supply - 0.5V between GND and Earth  (Read 930 times)

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Offline anderingTopic starter

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Switching power supply - 0.5V between GND and Earth
« on: September 17, 2016, 10:18:02 pm »
Hello,
I just got switching (LED) power supply (220V -> 24V) and tried measure voltage between Earth and GND(24V) and got 0.5V - 1V ,
is that vital ?

Thank you.
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Offline Psi

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Re: Switching power supply - 0.5V between GND and Earth
« Reply #1 on: September 17, 2016, 10:57:07 pm »
Does it have any current behind that voltage? or are you just picking up random noise that happens to be showing as 0.5-1V on the DMM.

I think you will find it's just noise/leakage and becomes zero the instant you load it a little. (eg 470R resistor between earth and negative)
« Last Edit: September 17, 2016, 10:58:49 pm by Psi »
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