EMI from 60Hz sources is almost always around however I've noticed a strong 60Hz signal on my DC power supply output wires. I can see it on the oscilloscope without hooking up the probes. If I unplug the the output cables or the power supply it diminishes significantly so its broadcasting off the output wires.
How is this getting through from the house outlet? I've tried turning off some things around the house to see if somethings leaking but its not that obvious a source. Could it be the supply itself leaking on the AC side even when turned off?
How to trouble shoot?
How is this getting through from the house outlet? I've tried turning off some things around the house to see if somethings leaking but its not that obvious a source. Could it be the supply itself leaking on the AC side even when turned off?
How to trouble shoot?