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Made a compact custom driver for the 300W NUBM31T / NUBM36 V3: 3A, 82V 97.45% efficiency at 3A I out: 0~3.5A V in: 35~60V V out: 60~90V All components are on the top of the PCB and a heatsink is on the bottom. I don't know how this will perform for thousands of hours.

I was able to contract develop a compact driver and firmware for a 50W laser array. Good learning process. It took around 3500usd

Good luck! What do you think the cost would be to develop something like this? Hours + material I was thinking for brightness control, we can just control the 4 individual arrays for: 0, 25, 50, 75, 100% It would technically be 4 individual drivers if done this way.

Thank you very much for the help and ideas! I have tried a 1200W DC boost converter before: However, this one has voltage overshoot: Maybe there is a way to have them slowly ramp up in voltage? Does the driver you recommend have any overshooting? Thank you for referring me to the power...

I have a module that has a built in laser array, optics, and phosphor. The laser array is a nubm36. Basically a 240W array @3A. I am searching on my own already, but I might as well ask here: Do you guys have a recommendation for someone capable of producing a custom driver that is more...

I run my nubm31t, all 4 arrays in parallel. Here is the data after running for 30 minutes. (I use liquid cooling) array 1: 3.386A array 2: 3.328A array 3: 3.436A array 4: 3.306A Use this data and decide if you would take the risk. In my opinion and my own limited hobby tinkering, these high...

I currently use this driver for 100% duty cycle, but I believe it may be well suited for clean PWM control. Maiman Electronics SF6060 https://www.maimanelectronics.com/product-page/high-power-laser-diode-driver-oem-cw-15%D0%B0-40v-sf6060 Unfortunately, this requires the array to be used in all...

I am not sure how this will affect things in the long run, Here is a test when I connected the output side of a 1200W DC boost converter that is set to 1A constant current. *The boost converter is already ON and resting at 48V input. As you can see here, even when set to 1A output, the voltage...

Lol, they wouldn't last a second. I mean as an additional attachment for your goggles. Kinda similar to a monocle with but with a rotating knob?

You could use plastic polarized sheets cut in a circular shape for variable brightness control based on the rotation in relation to each other. For examining laser spots or directly at LEDs I need 3 polarized sheets.

If I run it all in series, how often would a diode fail? I don't mind if it fails after about 20 hours of use. I have this driver: https://www.laserdiodecontrol.com/shop/15A-40V-high-power-laser-diode-driver-module I really like its 97% efficiency. However I need to run all 4 channels in...

Thank you for the insight. The Drok driver does say it has CC/CV capabilities?? Maybe I am reading it wrong, but there is an individual POT each for CC and CV. Is 100-200mv ripple bad? I would assume it would be an issue for a single diode, but over 20 diodes it seems no problem to me. I was...

Im not too experienced with exactly what is a good driver, but I plan to use these Drok booster Would there be any issues? I plan to add a 4A fuse inline with the system incase of any issues. haha I have looked everywhere and this is the most reasonable option that is below 1000USD...

3 nubm31t combined and slightly overdriven for 300W output

You were able to remove the lens and test the distances?

These arrays were built for laser projectors pairs with phosphor wheels. The best balance for intensity/efficiency/max output is at 2x2mm. Any smaller would overheat the PW (phosphor wheel) resulting in reduced efficiency and maximum power output. Any larger and the efficiency and max output...

Very interesting you were able to directly contact Nichia. Were you able to get a price? I had to pay 350USD each to get my nubm31t from China. I think @absolute has a strong argument for Nichia to deny everything unless it is directly through them. It is equivalent to selling a weapon with all...

I looked around on what types of lens we can use, and it all seems pointless if you are just trying to focus one wavelength. A simple convex lens, aspherical if possible will do the job with lowest cost, most options, and availability. I talked to some fiber coupled companies and the cost is...

A way to get smaller spot size is use a shorter focal length convex lens. Do you think a cylindrical mirror or lens can squeeze things down even more? I'm thinking if there are any 2mm fiber optic I can buy. My goal is to have 1mm spot, but 2mm is a good balance too.

Maybe I used the term wrong. In my case, I can build the setup like a knife edge, but I won't be aiming the arrays to be parallel, but to a single spot. Physically speaking, it is easier to stack more than 4 arrays if my setup is like a knife edge instead of the "pyramid mirror" I am using on...