Ac to Dc converter.

286

05:17:43

There it is! That's about as smooth of a 5v DC signal as anyone could ask for. Stepped down from the standard 120v AC from a household wall outlet, rectified and smooth like butter. Perfect for a cell phone charger.  The two capacitors absorb almost all current fluctuations, keeping the variance down to .02v.  I know this is easy for most experienced guys but an  accomplishment for me lol.  If anyone has any tips for me, please comment.  Thanks.

published 10 years ago

celrey

10 years ago

Hola buenos días, oye y de casualidad no tendrás algún guía didáctico para aprender a hacer o resolver problemas de voltaje, resistencia y amperajes y más

faceblast

10 years ago

put more capacitors in it

rich11292000

10 years ago

The standard 120v AC wall outlet is 120rms not 120peak. So take 120*1.414 to find the peak value of 170. 170 is the value you need to select on the source. If this were 240 volts, you would take 240(rms)*1.414 to give you 339(peak). EC requires the peak to properly simulate real world conditions. So in real life if you plug this in you get 5volts*1.414 = 7volts dc, which will not be good.

faceblast

10 years ago

7V output is enough to run a 78L05 though lol

Mrogala

10 years ago

That is valuable info lol. I did not know that however it makes perfect sense. Thanks for the tip.

cdrake

9 years ago

So rich, if wanted to build one of these, what would I need to modify to get the voltage of 5 volts?

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