hey luvdemshrooms, congrats for an amazing project.
could you please tel us a lot of more about the driver, please?
do you have a link to the electric diagram? or did design it on your own, or you got the desing somewhere else?
thanks a lot
Another CXA3050 thread
- Thread starter luvdemshrooms
- Start date
hey luvdemshrooms, congrats for an amazing project.
could you please tel us a lot of more about the driver, please?
do you have a link to the electric diagram? or did design it on your own, or you got the desing somewhere else?
thanks a lot
I think the driver could be one from IXYS, such as CPC9909. It seems like it matches the amount of components used and package. I'm trying to design a driver using it and am having trouble with fuse selection, it says in the application note to choose a fuse 5x the peak input current and with the specs I've selected, would mean a 30+A fuse? Doesn't make sense to me, argh.. more reading for me.
luvdemshrooms
Member
The actual SOIC-8 driver is a Supertex HV9910BLG-G
Looks like there's a demo board that shows a good starting point for a circuit that runs off 110VAC and drives 1.4A 40V.
luvdemshrooms
Member
Well, crap. I've been fighting with this light for some time only to find out my calculations were quite far off. I intended this light to replace a 600 watt HPS. Yeah... not so much.
New 600 watt HPS bulb at 16" = 66000 LUX
My light with 3 CXA3050's at 16" = 38000 LUX.
I'm not sure where I made the mistake but with a 60% yield reduction, action had to be taken.
As well, several LED's failed despite running at 60c or so. I believe the failures stemmed from my method of mounting them. The screws that clamped them in place didn't allow for expansion. I'll be rebuilding this with 6 of the CXA3050's and I'll report back.
(A similar tale of woe (slightly different numbers) shall appear in my CXA3590 thread)
New 600 watt HPS bulb at 16" = 66000 LUX
My light with 3 CXA3050's at 16" = 38000 LUX.
I'm not sure where I made the mistake but with a 60% yield reduction, action had to be taken.
As well, several LED's failed despite running at 60c or so. I believe the failures stemmed from my method of mounting them. The screws that clamped them in place didn't allow for expansion. I'll be rebuilding this with 6 of the CXA3050's and I'll report back.
(A similar tale of woe (slightly different numbers) shall appear in my CXA3590 thread)
lostenspace
Member
Hello, nice work. Where did you get your light meter for testing? I made two light bars 40" long with 4 vero 29 spaced 10" running at 1.4A. Just a room fan blowing on the plants and light bars. Did you use thermal paste when applying your cobs, you mentioned a failure from heat?
Its not as pretty as yours but I'll post pics if you're interested. My plants seem happier and I was able to cover more space than my 600w.
Its not as pretty as yours but I'll post pics if you're interested. My plants seem happier and I was able to cover more space than my 600w.
luvdemshrooms
Member
You can find inexpensive meters on many sites, Amazon among them. While more expensive and accurate meters are available, as I'm using them for comparing different sources, this wasn't of great concern.
Arctic Silver thermal grease was used.
Arctic Silver thermal grease was used.
