eagle1109
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Hi,
I'm working to troubleshoot and repair our power electronics training kits and today I noticed something and didn't expect it.
When I put the DMM at AC and put one of the probes at the DC ground, there's a voltage from 8 to 13 AC !
I checked it out with the oscilloscope and yep, there's an AC voltage:
I'm working to troubleshoot and repair our power electronics training kits and today I noticed something and didn't expect it.
When I put the DMM at AC and put one of the probes at the DC ground, there's a voltage from 8 to 13 AC !
I checked it out with the oscilloscope and yep, there's an AC voltage: