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808nm "lethal" supply

dzrick

New member
Joined
Nov 7, 2013
Messages
23
Points
3
Thanks GSS !

Well, I've been a bit busy but here am I, this is something I am sketching right now, the resistor array has the wrong package, hence the spacing, also, I need to take care of those capacitors and the pot placement, I suspect I'm using the wrong measurements there (wrong package again... maybe). Regarding the fets and it's heat dissipation, I need to calculate it, but I'll most likely put a 12cm fan over the whole and the respective heatsinks with thermal thingy thing and call it a day. q-:p

I could also get creative and find a way to TEC cool it as I have some laying around... but I'm saving them for the laser!

63588
Tell me what do you think...

Oh, I'm also working on the routing (first autorouted, now I need to thicken the traces and correct possible conflicts), but still, I need refine it:


63589

And of course... the respective circuit! :)

63590

It's a work in progress but I might start making some tests with dummy loads real soon..!

Regards,
Ricardo !
 



dzrick

New member
Joined
Nov 7, 2013
Messages
23
Points
3
So a rather quick post:

63698

Here is the board ready... now all I have to do is machine it! :)

63700
 

m3vuv

Member
Joined
Feb 21, 2019
Messages
83
Points
8
why use a smps psu,why not wind your own seconderys on an old microvave oven transformer?
 

dzrick

New member
Joined
Nov 7, 2013
Messages
23
Points
3
Hello!

Well, the answer is quite simple actually:
- Precision.

I will use this attached to a 12v and a 5v / 3.3v PC PSU, also with this I can control the voltage amount fed into the laser module whilst limiting the current.

Thanks for asking thou!
 




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