Re: Connecting LED's to direct 120VAC?



John Fields wrote:
On Sat, 06 May 2006 18:31:39 -0700, Jamie
<jamie_ka1lpa_not_valid_after_ka1lpa_@xxxxxxxxxxx> wrote:
not sure if the reverse side of the diooe would cause some
---
{lots of crap removed}
Nope. you need at least an antiparallel diode across the LED or two
LEDs in antiparallel in order to keep the reverse voltage from
killing the single LED.
---

we have some LED upgrades for incandescent lamp holders for
control panels which you can clearly see that they are a
LED and Resistor combo for a 120 vac fixture.(no back diodes).


---
Nope. See above.
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i don't know what to tell you, we must be using magic LED's
then. last night i set up a test on the bench using a zip cord
and a network of resistors operating a Jumbo, a small RED led
and a green one that i had in my junk box. , no back diodes
on any of them. as i sit and type this i can look over to the bench
and they are operating just fine.
we have been slowly updating our panel lights that are in a range
of 6,12, 24 and 120 volt ac types with LED's with nothing but a
Resistor in series. as far as i know they are all still working accept
for maybe one of them that needed replacing due to a electrician putting
a 6 volt set up in a 24 volt fixture.
i'll leave it as this point, maybe we are using special LED's that i am not aware of. who knows. all i can say is they work..

--
Real Programmers Do things like this.
http://webpages.charter.net/jamie_5

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