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ArcticMyst Security by Avery

Custom laser array driver

likevvii

Member
Joined
Mar 2, 2020
Messages
72
Points
18
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 compact than the one I have in the picture?
I want a wider input voltage range so I can use a li-ion battery pack.
I am looking for something that is similar to this in size:
https://www.maimanelectronics.com/product-page/high-power-laser-diode-driver-oem-cw-15а-40v-sf6060

I want the unit cost to be under 100USD so it can be a consumer product.

Do you think 3500usd is enough to develop a driver?

Thanks.

I'm also trying to customize an aspherical fresnel lens, 165mm diameter, 120mm focal length, AR coated.

uc

uc


nubm36.png
1676799175736.png
 





Borislav@87

Active member
Joined
Mar 20, 2022
Messages
285
Points
28
These work stably. You just need to use two drivers to power every two rows of 10 laser diodes. I use the same converter with 18pcs 18650 batteries


600W Aluminum Plate DC-DC Boost Converter Adjustable 10A Step Up Constant Current Power Supply Module Led Driver
 

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likevvii

Member
Joined
Mar 2, 2020
Messages
72
Points
18
Thank you very much for the help and ideas!
I have tried a 1200W DC boost converter before:
1676882111160.png

However, this one has voltage overshoot:
20210220_161554 (1).jpg


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 electronics company, ill give them a go and see what happens.
 
Joined
Aug 3, 2018
Messages
1
Points
1
In order to organize a soft start in such drivers, it is enough to solder a 10 mF capacitor to the terminals of the voltage adjustment potentiometer
 

likevvii

Member
Joined
Mar 2, 2020
Messages
72
Points
18
Can definitely do that but it needs to wait till summer time due to me taking some national exams for a possible E.E scholarship
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.
 

Giannis_TDM

Well-known member
Joined
Apr 27, 2019
Messages
875
Points
93
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.
The BOM should not surpass 50 dollars.
 

Giannis_TDM

Well-known member
Joined
Apr 27, 2019
Messages
875
Points
93
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.
Honesty I do not really have a solid number to give as some prototyping runs will need to be done to iron out any sort of bugs, besides that I expect it to be lower than the figure you have on your post.
 




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