I want to create a luminaire (a lighting unit) comprised of the following:
- 5 Nichia LEDs running @ 70.2W / 39V / 1.8A
- 6 Cree LEDs running @ 2.2W / 3.2V / 700mA
- 14 Cree LEDs running @ 1.61W / 2.3V / 700mA
I have included two schematics, the first separating the luminaire into 6 circuits:
- The 20 Crees running on 1 circuit
- The 5 Nichias running on separate circuits.
The second circuit groups the 20 Crees with 1 Nichia, and then 2 Nichias per circuit.
I want to drive the circuits using a DC to DC 10-32V to 10-46V 150W Boost constant current power supply Regulator like the one found here:
- http://bit.ly/KzHhID (eBay Link)
My questions are these:
- Does my first schematic work? And does my second schematic work?
- What kind of consideration should I take in running the two Nichia LEDs in parallel if any?
- Is the DC - DC Driver stable enough since it is constant current?
- Any other suggestions to make it more stable? (When using only 3 drivers as opposed to 6)?
Finally, does anyone have any idea how to maybe run this rig more efficient? I mean, how can I create this same light with only 2 circuits?
- Circuit A: Run the 20 Cree LEDs @ 700mA - 39W
- Circuit B: Run the 5 Nichia LEDs @ 1.8M - 351W
Does anyone know of drivers or chips that can handle that much power? 350 Watts? And is the choice of my PSU ok? It will be either 24V/16.7A/400W or 12V/33.3A/400W.