Need help with complex LED circuit

Thread Starter

martnl

Joined Feb 6, 2020
1
I have the following LEDS that I want to glue to a water cooled block (with thermal glue):

100W COB LED (rated @ 30-34V, 3400mA max)
10x LEDS Vf: 1.8-2.4, 700mA max (different colors)
14x LEDS Vf: 3.0-3.4, 700mA max (different colors)

My questions:
What circuit would be best in this case? keeping in mind the fact it's water cooled
How many LED drivers should I use?
could I pull it off with a single driver somehow?
LED longevity is an important issue, so I hope a (partial) parallel circuit would be possible? I can't have all LEDs quitting on me when a single LED dies in the case of an entire series circuit.

and help is very much appreciated!!
 

Dodgydave

Joined Jun 22, 2012
8,866
You need two led drivers, one for the Cob leds, and one 2Amp min rated for the others. Most led drivers can be run in series to save money and time wiring..
 

dl324

Joined Mar 30, 2015
10,072
Welcome to AAC!

What is the voltage of your power source.

LED longevity is an important issue, so I hope a (partial) parallel circuit would be possible? I can't have all LEDs quitting on me when a single LED dies in the case of an entire series circuit.
The lifetime of LEDs is measured in decades when operated within their specs. The failure mode is typically decreased light output vs an open.
 
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