We have ordered from a supplier some high power leds - 20W RGB. They dont have any data sheet , and so we where thinking that we would try and find quickly how to connect them .
Everything we tried failed, we even checked a few of them, and nothing worked.
Well, what happens is that sometimes it flashes for a second and then never turn on again, and sometimes we see a very low green light from it .
We have the right voltage and current supply for it (600mA,32V) , but i guess we still had not guess the right configuration.
Please check this image : 
We tried also to switch the vcc/gnd, we also tried to ground the body and then give ground to one of the rgb pins, but nothing ...
I guess it works in low, so that you give it a vcc, then you ground the r/g/b to get the right color .
What are we missing here ?
Answer
It seems you might have some luck, googling 20W RGB turns up stuff that looks mostly like yours; so go through those links and try to find some info or call/email the sellers: google.com/search?q=20W+RGB&tbm=isch
And I don't think the pinout is much of an issue.
On the other hand you might need different voltages for each color, same here, here, or here.
It seems like your voltage and current spec don't match anything visually similar found in that search; those are generally 300-350mA per chain/color and 18-20V for G & B but only 10-15V for R.
In response to your questions in the comments: In all likelihood, those are simply DC voltages. Each of the three color chains is a series of 6 (it seems) LEDs. These three chains are connected as in the diagram below:
simulate this circuit – Schematic created using CircuitLab
No comments:
Post a Comment