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Square wave edge noise on power rail causing issues with low current AC detector

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leonababy:

--- Quote from: StillTrying on September 01, 2019, 09:06:13 pm ---I can't see how 100mv of noise on the 5V DC effects the HCPL-3700. At only 100Hz you've got options to put a small cap. filter on the AC or DC side, across pins 2 & 3 on the AC side.

--- End quote ---

AC side - this appeared to me to be to filter noise on the AC input, so I did not try it since the noise was on the rail.  DC side (of bridge) - same reasoning as AC.  DC output - adding capacitance here is for filtering the output pulses so that a change in output only occurs when the AC comes on or off - for app's that desire this function.  This would slow the signal down of my pulses and wreck the shape of it, and it may not solve the problem that I had, was my interpretation.

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