Drivers for CXB3590 LEDS

Organja

Organja

Well-Known Member
hey everyone. I'm searching and searching and can't figure this shit out.

I want to use individual drivers for Cree cxb 3590 cob units.

Maybe that's not the best bet. But I want to build smal, units to start, and go from there.

Supra, I know you're out there, and own the knowledge base that is LEDs!

I want to do this right. Just don't know what the hell I need, and now all this adds up. I savvy electricity, and whatnot, but this is next level for me...
 
alesh

alesh

Well-Known Member
Organja said:
hey everyone. I'm searching and searching and can't figure this shit out.

I want to use individual drivers for Cree cxb 3590 cob units.

Maybe that's not the best bet. But I want to build smal, units to start, and go from there.

Supra, I know you're out there, and own the knowledge base that is LEDs!

I want to do this right. Just don't know what the hell I need, and now all this adds up. I savvy electricity, and whatnot, but this is next level for me...
Click to expand...
There are very limited options for driving single 72V CXB3590.
I'd consider getting the 36V version or CXB3070.

How hard would you like to run it?/What is the space you want to cover?
 
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alesh

alesh

Well-Known Member
p4id said:
I use philips fortimo led driver 1100 2000 TD to run individual 72v cxb3590's
they also have a 12v line for the fan which saves on a bit of wiring.
Click to expand...
Right, these would work well. Unfortunately, they don't seem to be available for a reasonable price.
 
Organja

Organja

Well-Known Member
It just gets more and more confusing. Different voltages for chips, running the chip at less or more power... Arg!

So how does one need to shop for a driver? Once this clicks I'll be all on board, but until my internal lightbulb goes on, I'm uber confused.

I want to run best efficiency, best temps, etc, as opposed to really pushing my unit.

quality is key. I want components that are high standard.

Thanks guys!
 
Organja

Organja

Well-Known Member
So I am slowly piecing this together, but I'm missing data connections in my mind to make a complete thought from all this.

So there are two voltages for the cxb 3950s. 36 or 72.
I understand higher voltage means decreased amperage in commission to running them at same wattage. But aside from that, what is the reason for having these choices? A driver that can powers 2 @ 36 V would also power a single at 72V? Is this logical thinking in this regard?

Also, running at more or less ma. Why? Efficiency control? How do I calculate what the chip requires for optimal efficiency, and then how does that translate to a driver? I know a lot of people want a link to a driver, but I need a more deeper understanding of how this all works in order to make sense and understand it.

Thanks guys! I'm a quick learner, and I appreciate everyone's time and patience towards questions likely already asked. Trust me I'm researching relentlessly to find these answers...
 
alesh

alesh

Well-Known Member
Organja said:
So I am slowly piecing this together, but I'm missing data connections in my mind to make a complete thought from all this.

So there are two voltages for the cxb 3950s. 36 or 72.
I understand higher voltage means decreased amperage in commission to running them at same wattage. But aside from that, what is the reason for having these choices? A driver that can powers 2 @ 36 V would also power a single at 72V? Is this logical thinking in this regard?

Also, running at more or less ma. Why? Efficiency control? How do I calculate what the chip requires for optimal efficiency, and then how does that translate to a driver? I know a lot of people want a link to a driver, but I need a more deeper understanding of how this all works in order to make sense and understand it.

Thanks guys! I'm a quick learner, and I appreciate everyone's time and patience towards questions likely already asked. Trust me I'm researching relentlessly to find these answers...
Click to expand...
Yes, a driver that can power 2 36V 3590s can run single 72V 3590. The thinking could be that higher voltage drivers are generally more efficient.

The softer LED runs the more efficient it is. It's difficult to say what the optimal efficiency is. Either you can set an efficiency level you want to achieve and run your COBs accordingly or you can set the price level for output and choose the lowest current that meets the price level.

Basically you choose the current you want the COB to run at. Then find the voltage it needs at that current (in the data sheet). Then find the driver which puts out the desired current and has the voltage range in which is the forward voltage of the COB.
 
Organja

Organja

Well-Known Member
alesh said:
Yes, a driver that can power 2 36V 3590s can run single 72V 3590. The thinking could be that higher voltage drivers are generally more efficient.

The softer LED runs the more efficient it is. It's difficult to say what the optimal efficiency is. Either you can set an efficiency level you want to achieve and run your COBs accordingly or you can set the price level for output and choose the lowest current that meets the price level.

Basically you choose the current you want the COB to run at. Then find the voltage it needs at that current (in the data sheet). Then find the driver which puts out the desired current and has the voltage range in which is the forward voltage of the COB.
Click to expand...
You are referring to the mA correct? 1200ma=1.2 amps. Etc.
I appreciate your response.
 
EfficientWatt

EfficientWatt

Well-Known Member
Hi p4id,

Could you tell me more about your fortimo driver please :mrgreen:

How did you connect the DC side to the cob ? looks to me like there is some weird connection interface :confused:
fortimo 1cxb3590 driver.jpg

Looks like it's rated for 46W, so 2-3W short ... Did you or test for actual operating values ?

Thanks

p4id said:
I use philips fortimo led driver 1100 2000 TD to run individual 72v cxb3590's
they also have a 12v line for the fan which saves on a bit of wiring.
Click to expand...

Anyone else got a good dimmable driver for a 3590 to recommend ?
 
sanjuan

sanjuan

Well-Known Member
Assuming a 72Vf COB running a maximum of 50W, the Mean Well HLG-60H-C700 is a good match; 700mA and dimmable. Constant current region is 50 to 100V.
 

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