Would this work? (simple circuit diagram)

Well, i'm pretty much clueless about electronics, so I was just wondering whether or not this diagram would work, and if not, why? Thanks =]

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LinuxH4x0r9 years ago
Does this help? (works of 120 without transformer)
whitelednight.jpg
That's a cute trick!

That first capacitor essentially limits how much charge is injected into the rectifier bridge each half cycle, essentially suplying a constant current to the LEDs, regardless of how many you have in series (provided you stay <<110V).

This is the original page at discovercircuits.com, in case you have a hard time reading the circuit diagram above.

Here's an even simpler version:

AC Line Powered LED Pilot Light

And a more complicated version, with a light sensor to shut off during the day:

Modified LED Night Light
guyfrom7up9 years ago
it might work, what's the voltage supply?
Weissensteinburg (author)  guyfrom7up9 years ago
Haven't figured that out yet, nor that resistor value. There will be more LEDs than that, too. I'm mainly trying to make sure that the wiring configuration would work.
that could work, but it's recomended to have a resistor for each individual led
plus as good hart said each led will only be on 40% of the time, put a bridge rectifier in and it'll be on 80% of the time
Weissensteinburg (author)  guyfrom7up9 years ago
Whys that?
oops, I meant to say 50%, this setup only takes half the wave.
Weissensteinburg (author)  guyfrom7up9 years ago
half the wave?
half of the sine wave, the other half is negative and the leds won't conduct
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