El miércoles, 30 de octubre de 2013 22:31:43 UTC+1, Przemek Klosowski escribió: > > Ouch, and another ouch since you seem to live in a 220VAC country. You > can't just connect 220V to a voltage regulator---it has maximum allowed > input voltage around 35V---you'd exceed that by a factor of almost 10. > > You probably should either do some reading about line voltage electronics > and 220V power supplies (hint---what you propose could work if you used a > transformer to get 220V down to 12V or so). > >
Maybe I didn't explain it correctly: I'm connecting a current transformer and a current voltage transformer (220/9) to the circuit in the scheme. So the voltage regulator is receiving 9v (about 12.7 V , but with about 0.6v less because of the diode rectifier) > My suggestion to you would be to consider a low-cost commercial power > meter like Kill-A-Watt ($20 or so) then point a BBB with a webcam at its > display, and do > a little image processing to read out the power. > I don't like this solution, too many things to add... > People also cracked them open and interfaced directly to their internal > circuitry. > mmm, do you know if there are any publications of the results of these cracks? They might provide me some ideas. > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
