I hope you can help me!
I’m going to categorize this into A) B) C)
Recently just bought a NUBM08 Nichia Laser Array and need to know how to get this boy working!
So for this Spec Operating Voltage = Mid 34V & Max 38V Operating Current = Mid 3.1A & Max 3.5A
So how exactly do I get this working!? If you haven’t already watched; Styropyro has done this, Titled 40W Laser Shotgun on YouTube. So clearly it is possible.
From our Values above the wiring configuration would equal:
Series = 4.25V in each LD and 3.1A in each LD Parallel = 34V in each LD and 0.3875A in each LD
So from here I think its going to be a Series Configuration
What do I do next…
Using an LM317 current Regulator Formula Resistor Required (Ohms) = 1.25V / Nominal LED Current (3.1A) = 0.4 Ohms
However I read that LM317’s lose there Efficiency after 0.2A or .200mA and I know they don’t work over 1.5A, therefore 3.1A / 0.2A = 15.5 LM317. so 16 LM317 are needed to make this run as efficiently as possible.
16 LM317’s Will run in Parallel so that Amps are shared between them all hence the reason for 16 LM317’S. This would now equal 1.25V / 0.2A = 6.3A
So now that’s all done and I hope you understand and follow with me. How do I select the portable Power supply!?
Remember I have a Voltage of 34V and 4.25V across each LD a 34V battery would be big and Amps also very high.
Do I need a Voltage regulator also?
I’m all very confused and really hope you guys can help me here.