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The sync signal and the waveform signal must be the same frequency or a multiple of that frequency
Have you tried syncing with the primary side?The primary side of the Ratio step down transformer is grounded and the secondary is floating the AC waveform
You can't use the secondary side to be the reference because it's floating , why is that? the waveform can't sync to the sync signal , its free running
Have you tried syncing with the primary side?
I have no idea what that sentence even means. It usually is that things are either connected to ground or 115Vac or something in between, but I have yet never heard of 115Vac being ground. Could you elaborate on that?Why does it work when the 115VAC 400hz is ground and not floating? it won't sync when it's floating why?
Because perhaps, when floating it er isnt connected to groundWhy does it work when the 115VAC 400hz is ground and not floating? it won't sync when it's floating why?
If you want to look at the 400Hz signal on the 'scope then why don't you switch the 'scope sync input to the 'scope channel that has the 400Hz signal?
If you want to look at the 400Hz signal on the 'scope then why don't you switch the 'scope sync input to the 'scope channel that has the 400Hz signal?
So you are measuring two signals and caputre them based on a 400hz trigger?The 400hz is a external sync signal , has nothing to do with being the same frequency as the waveform i'm measuring , can be floating or or has a ground either way they are both two different things