Weird issue with meanwell drivers powering samsung strips

[TEKNIK]

You could use a 1-10V potentiometer to do it. Not sure about using resistor pots.

I will try to get a diagram drawn for you today.

[randorson]

Thanks! Ive only used linear taper pots for dimmers in the past. I use a 50K pot to dim pairs of Mean Well drivers.

[bilabong007]

Hi,

I had a thought on your problem with the strips being marginally high in voltage. It may be a daft one, so be gentle.

Could you not find the diode grouping on the strips and short one of the diodes on each parallel leg? Essentially just soldering a link around\across it to drop that strips voltage.

Wish you well whatever way it works out, it's been yet another great and informative read going through your thread.

B

[randorson]

Hi,

I had a thought on your problem with the strips being marginally high in voltage. It may be a daft one, so be gentle.

Could you not find the diode grouping on the strips and short one of the diodes on each parallel leg? Essentially just soldering a link around\across it to drop that strips voltage.

Wish you well whatever way it works out, it's been yet another great and informative read going through your thread.

B

Thanks for the suggestion. I'm not familiar with "diode groupings".

[TEKNIK]

You would really want to have a rework bench before trying to drop an led out of each string.

Sorry for being late with the wiring diagram

[bilabong007]

One last thought was to use conductive paint (the stuff to repair heated car glass) rather than soldering.

I have too much time on my hands

[bilabong007]

Thanks for the suggestion. I'm not familiar with "diode groupings".

From my rudimentary understanding of strips (and i m no expert) they are groups of 3v diodes.

E.g. 5 parallel groups of 12 diodes in series (12x3v) = 36v 60 diode strip

If you work out how your strips are grouped you could short diodes to drop the voltage. There is probably a much easier way to fix this, i would listen to one of the more knowledgeable folk.

B

[randorson]

You would really want to have a rework bench before trying to drop an led out of each string.

Sorry for being late with the wiring diagram

No apology necessary. I def want to see the diagram so that I can advance my thinking on combining series and parallel circuits. The customer does want to pay to upgrade these lights. I believe I'm going the route of rewiring the 8 existing strips in parallel to be powered, by a HLG-600H-48B, and then adding 3 additional strips to each light, which will be powered by one of the HLG-320H-C1750B's. I believe this will make a decent CO2 ready light.

So can I use that software you told me about to determine the PPFD of the design I am proposing?