Author Topic: Wireless Four Channel 'Honest' RMS AC Power Monitor  (Read 5034 times)

TomWS

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Re: Wireless Four Channel 'Honest' RMS AC Power Monitor
« Reply #15 on: November 26, 2015, 03:07:26 PM »
@Tom: in your schematics (and apparently on your board) I see you're using electrolytic caps for AC decoupling. Doesn't it cause problems for you? I see that the cathode of the caps is biased to +1V, but on the anode the voltage can swing from -1 to +1. On the long term, shouldn't it cause damage and malfunction? I might be seriously overlooking something simple, though...
Ooops!  Good catch!  Yes, the caps are backwards.  I haven't had any problems with the two units I deployed, but I should update the schematic.

Thanks,
Tom