DIY COB LED Calculator

[bggrass]

those apply to the one single chip that supra measured. you could easily derive an equation from crees data as well *IF* they presented data below 1.4A which they do not, which is why i used supras data

Thanks Bobby

 

[bggrass]

i really dont know how to open this tool

Just download the file from the link in the first post, double click on it, and it should run.

 

[Mr. Candiano]

Thanks Bggrass, if anyone can figure how to download this to an iPhone it would be much appreciated.

 

[bggrass]

Thanks Bggrass, if anyone can figure how to download this to an iPhone it would be much appreciated.

I belive the problem is not with downloading it on iphone, but iphone does not have support for java.

 

[Mr. Candiano]

I belive the problem is not with downloading it on iphone, but iphone does not have support for java.

I downloaded Java app and still nothing, I'm stumped.

 

[BOBBY_G]

run it on a computer not an itoy

 

[Mr. Candiano]

run it on a computer not an itoy

Itoy is my computer! Shit 2016 is the first time I've ever had wifi. Stone Age but I'm getting better

 

[captainmorgan]

Can you add CXB3070 BB 3500k

 

[bggrass]

Can you add CXB3070 BB 3500k

Sure. Do you have the spreadsheet? Post it here

 

[captainmorgan]

Here's sheets for top bin CXB3070 BB 3500k and CXB3070 BD 5000k

 

[bggrass]

I found this program that is supposed to digitize a graph from a jpeg file. I thought if I can get it to work, I can plug in the graphs from the cree datasheets and that could give us the formulas. If that happens, I might be able to just create a box for input amperage which will give more flexibility, let's say someone wants to use a driver with an amperage that is not in the spreadsheets, it will still calculate everything at that amperage. The problem is, I can't get it to run on my computer. I think it's something to do with my OS. Here's the link and a sample graph if someone wants to play with it.

http://digitizer.sourceforge.net/

 

[Mr. Candiano]

I found this program that is supposed to digitize a graph from a jpeg file. I thought if I can get it to work, I can plug in the graphs from the cree datasheets and that could give us the formulas. If that happens, I might be able to just create a box for input amperage which will give more flexibility, let's say someone wants to use a driver with an amperage that is not in the spreadsheets, it will still calculate everything at that amperage. The problem is, I can't get it to run on my computer. I think it's something to do with my OS. Here's the link and a sample graph if someone wants to play with it.

http://digitizer.sourceforge.net/

Your really putting in work brother. Your going to make me buy a PC or android phone.

 

[klx]

I found this program that is supposed to digitize a graph from a jpeg file. I thought if I can get it to work, I can plug in the graphs from the cree datasheets and that could give us the formulas. If that happens, I might be able to just create a box for input amperage which will give more flexibility, let's say someone wants to use a driver with an amperage that is not in the spreadsheets, it will still calculate everything at that amperage. The problem is, I can't get it to run on my computer. I think it's something to do with my OS. Here's the link and a sample graph if someone wants to play with it.

http://digitizer.sourceforge.net/

Cant get it to work either. I tried to install the missing dll and still no go.

 

[Mr. Candiano]

Cant get it to work either. I tried to install the missing dll and still no go.

I tried everything, don't think it's going to happen on iPhone iPad

 

[klx]

I tried everything, don't think it's going to happen on iPhone iPad

Nah the tool works fine for me, I was referring to the digitizer app. You wont be able to use the tool on those devices as you cant run Java I dont think.

 

[bggrass]

Here's sheets for top bin CXB3070 BB 3500k and CXB3070 BD 5000kView attachment 3619068 View attachment 3619069

OK. Added both the BD 5000k and the BB 3500k. Same link for the update.

 

[captainmorgan]

OK. Added both the BD 5000k and the BB 3500k. Same link for the update.

Thanks for all the work your putting in to help others,this will come in handy for playing with set ups.

 

[bggrass]

Thanks for all the work your putting in to help others,this will come in handy for playing with set ups.

It's more of a community work. I just do my part. It helps me too, I play with the configurations as well .

 

[bggrass]

Cant get it to work either. I tried to install the missing dll and still no go.

I get the same error on my PC with windows. I have an older computer that I installed Ubuntu on it, but I'm not very good at it. Tried it there but I can't seem to find the application file to start the program...

 

[audiophilepj]

Love the calculator, thx! Only issue: Can't resize the program window... must be a java issue. 1.0 was larger then my laptop display, 2.0 cuts off the left edge. No resizing options available.

Thanks again,