I'm looking at the output of a wall powered driver on a scope. The bottom of the square wave, (meaning 0v), is messy, presumably because the output ground isn't tied to the input ground, so it's floating.
I want to use this output to control a device I will make, but not sure what to do to eliminate this noise.
I want to use this output to control a device I will make, but not sure what to do to eliminate this noise.