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help needed abt bi colur led

N

nitin

Jan 1, 1970
0
i need information abt bi colour leds.pls direct me to the site which
can give me the constructional details abt bi colur leds thanks
 
M

Michael A. Terrell

Jan 1, 1970
0
nitin said:
i need information abt bi colour leds.pls direct me to the site which
can give me the constructional details abt bi colur leds thanks


http://www.google.com


--
Service to my country? Been there, Done that, and I've got my DD214 to
prove it.
Member of DAV #85.

Michael A. Terrell
Central Florida
 
T

The Grim Reaper

Jan 1, 1970
0
LOL!

I can't decide whether that's funny or cruel :D
________________________________________
The Grim Reaper
 
N

nitin

Jan 1, 1970
0
i already tried that .i didnt get what i expected so i was here
thinking that some may know the related sites that can have the full
constructional details.
 
N

nitin

Jan 1, 1970
0
nitin said:
i already tried that .i didnt get what i expected so i was here
thinking that some may know the related sites that can have the full
constructional details.


hey end up
its the first time i was searching for the bicolur led.
i dont even know how they work.
so i thought some may help me.
now i tried and i know the bicolur led its bit small abt the
construction than i expected it would be.
anyhow thank you
 
C

Chris

Jan 1, 1970
0
nitin said:
hey end up
its the first time i was searching for the bicolur led.
i dont even know how they work.
so i thought some may help me.
now i tried and i know the bicolur led its bit small abt the
construction than i expected it would be.
anyhow thank you

Hi, Nitin. If you're still there, I would have suggested you first try
to get the manufacturer's part number or some more information -- at
least, whether it's a two- or three-lead device.

Two lead bi-color LEDs are made with inverse-parallel diodes, like this
(view in fixed font or M$ Notepad):

| ~
| R~
| o---o--|<--o---o
| | |
| '-->|--'
| ~G
~
(created by AACircuit v1.28.6 beta 04/19/05 www.tech-chat.de)

You would use a current limiting resistor with this, of course. If you
apply current in one polarity, one of the LEDs will light up. If you
apply current in the other polarity, the other LED will light.

Other bicolor LEDs have three leads. They've also got two separate
LEDs in one package, and either the cathodes or anodes are the middle
(3rd) lead, like this:

| ~
| R~
| o---o--|<---o
| |
| '--|<---o
| ~G
~
(created by AACircuit v1.28.6 beta 04/19/05 www.tech-chat.de)

Specifications on electronics components are available at the
manufacturers' websites. For instance, a bicolor LED available at
Jameco traces back to the manufacturer's site as:

http://www.ledtech.com.tw/images/pdf/LT0362-24-D61.pdf

If this doesn't answer your question, possibly you could take a second
or two and be more specific about your problem?

Cheers
Chris
 
M

Michael Black

Jan 1, 1970
0
nitin" ([email protected]) said:
hey end up
its the first time i was searching for the bicolur led.
i dont even know how they work.
so i thought some may help me.
now i tried and i know the bicolur led its bit small abt the
construction than i expected it would be.
anyhow thank you

But if you expect real answers, you need to actually ask proper questions.

In your original post, you said:
"i need information abt bi colour leds.pls direct me to the site which
can give me the constructional details abt bi colur leds thanks"

That says nothing about what information you need, it doesn't indicate
whether you are asking how to make them or how to connect them, and it
sure doesn't convey anything about why you couldn't do some searches
yourself (or that you did and weren't successful).

If you'd said "I no bi-color LEDs can show two colors, but I don't
understand how they work...." that might have gotten some answers. Or
"I know you can change the colors of these by reversing polarity, but
I don't understand how I can do that in a circuit...." There are likely
lots of questions you could ask that would get a response far better
than your vague original post, because then it would be clearer exactly
what it is you want to know, and give us an idea of where you are on
the electronic knowledge tree, so there'd be an answer to provide, and
in terms that you could understand.

If people can't ask proper questions, then they shouldn't get upset
when they don't get the answer they want. Because it's not the people
trying to be helpful that are at fault, but the original question
that gives them little to work with.

Note that even a properly phrased question does not get an automatic
answer. People aren't here to answer questions, they are here for
a variety of reasons and they answer questions when they feel like it.
Badly phrased questions provide less incentive to bother, but even a good
question may get the "do a websearch" for the simple reason that the person
replying has decided it doesn't deserve a better answer.

Michael
 
H

Homer J Simpson

Jan 1, 1970
0
hey end up
its the first time i was searching for the bicolur led.

First, spelling helps a lot. Grammar helps make your intentions clear as
well.
 
M

Michael A. Terrell

Jan 1, 1970
0
The said:
LOL!

I can't decide whether that's funny or cruel :D


Once you learn to ask the right questions, any decent search engine
will tell you what you need to know. You can't use bad spelling and
abbreviations to find anything online.

The word tutorial, along with proper spelling will usually ring up
plenty of useful pages of information. "Datasheet" will do the same, if
you have a good description, or even better, a part number.


--
Service to my country? Been there, Done that, and I've got my DD214 to
prove it.
Member of DAV #85.

Michael A. Terrell
Central Florida
 
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