marcoreps
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Laser driver on GitHub
🕑 Added 2018-09-10 10:22:37 +0000 UTC With the 20 projects going on at the same time, I thought I should at least take the time and wrap this up nicely and professionally:https://github.com/marcoreps/laser_driver
Comments
Marco Reps
ACASN1002S1002P1AT seems to be an equivalent part number avaiable everywhere. That's just 2 resistors on the same substrate for thermal matching - because a tiny difference in those resistors would cause large reading errors. Good luck with your YAG 😁 post some pics on discord if you have time
Brian Thurston
Hi Marco, I'm sourcing parts to build a couple of these laser drivers and I'm having trouble finding the exact part for RN1 in the schematic. I've found parts in the same family, but I'm not sure what the exact resistance values should be. I'm hoping your design to drive some 40 watt diode bars in a YAG laser I'm building.
Marco Reps
Sure! Something like this will do the job nicely <a href="https://www.circuitlab.com/editor/" rel="nofollow noopener" target="_blank">https://www.circuitlab.com/editor/</a>#?id=ysgp7h
David Miedema
As the OSMU is not in hand... is there a easy way to set variable current limit.? Looking for driving lower power laser diodes say 7.5W eleksmaker diode laser (and not always at full power).
Marco Reps
Yes, the guy who sent me that fiber coupled laser module for the development of a cc driver has a fennec, so I am sending him a little sculpture with the latest version. Want one too? If so, PM me your address
Andrew
Omg is that the low-poly fennec fox model printed in resin?! So jealous! Attempts to print that on my FFF printer always results in the legs breaking off when removing the supports :( Although I've printed a few of those in a light shade of woodfill (ColorFabb's Woodfill) and they look amazing once the legs are glued back on! That wood filament is the perfect colour for fennecs! (My housemate/ex-gf is a huge fox - and especially fennec fox - fan, so of course she loves it!)
