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Old 11/11/2019, 03:53 PM   #28
oreo57
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Join Date: Apr 2013
Posts: 1,716
Sorry never kept track and most were freshwater and frankly knew the diodes were disposable at like 10/$1...

There are a lot of things that work contrary to "best practices".. just not my cup of tea.

One thing though is I consider it an obligation to mention "alternate views" to people who have little to zero understanding of what they are doing..

https://www.powerelectronicsnews.com...iver-selection

Like I said, you can "properly" run those chips but adds about $100 to the cost.
In a sense you are putting a lot of faith in very cheap components..there is very little stability to begin with..

to end this let's just say that is not the way "I'D" do it..

OK key point if one could THEORETICALLY tailor the voltage output to the chip as to only allow a safe current flow (sadly ignoring each row will be electrically different to begin with) it is possible to run err "driverless" with success both short and long term.

Problem is components never stay the same and it doesn't take much of a change to have diodes "pull" more current than they are designed for especially if you are already running at the edge.
https://www.waveformlighting.com/pcb...ting-resistors



On the upside, don't see you burning down your house...

Quote:
Bottom Line:
LED devices are inherently current-controlled devices, and do not respond well to fluctuations in voltage.
If you are building an LED system using constant voltage power sources, you must absolutely be prepared to use current limiting resistors to ensure stable and safe operation of LED devices.




Last edited by oreo57; 11/11/2019 at 04:08 PM.
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