LED lighting batten drivers

[onextwo]

Hi,

In my workshop I have 12 LED lighting battens and the some of the drivers have failed.

In side there is 2 aluminium PCB with a 72 LED on each PCB as ‘current' Schematic.

I am looking the get some constant current led driver to replace them.
is it there any problem wiring as ‘option 1' Schematic or is it best as ‘option 2' Schematic.

With option 2 I would have to modify the all PCBs, so a lot more work.

[stj]

option2 is going to be less effected by led failures.
having said that - the original is using 51v to drive 4 leds - 12.5v per led - are they single-chip?
if they need 12v you need to use a 100v driver

whats failing anyway?
better to sort the problem - if these are sealed units it may be overheating so un-casing them would help
or the caps could be dead from heat

[redwire]

cross-posted https://www.eevblog.com/forum/projec...batten-drivers

[onextwo]

Hi stj thanks for your help.

Yes I have got it all wrong. See correct schematic.

[onextwo]

The question I should have asked is:
What is the better circuit design Schematic 1 or Schematic 2

[stj]

1 is best - the panels cant effect each other much