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Thanks for the knowledge on this, it was very interesting :) I didn't intend on wiring it in a voltage regulation form as I know diodes are greedy with current and will take as much as they can and blow themselves. I didn't intend to use my circuit as voltage regulation so sorry if I came...

Thanks for the help cyparagon, for some reason it won't let me quote you!.. there's a lot of valued information there that I've thought of doing like using the voltage regulator and the current regulator working together and if you can use them both in the circuit, but as Uve just told me you...

Thanks for your help encap; the link was very useful. And okay that's good then, someone's already done it and yea I could do. Is he still active ?

Yea thanks encap I know the data sheet as I've pretty much studied it ha. I'll see what cyparagon has to say about the above rated voltage he seems to know quite a lot about the very technical bits Rach

Ah thanks for this, this is useful! Can I ask why he doesn't increase the voltage tho? With the new battery I will be using (11.1V) it's 3.5V drop out voltage for the regulator = 7.6 minus heat maybe 0.6V = 7V 7V is well over the 4.8V he uses. He uses that because it's the max rating for...

Thanks for your comments cyparagon, I will move my battery to 11.1V in this case. I hope it doesn't damaged the LD. Just to make you all I aware the LD I am using is the 08 N1ch!@. Dont know if u guys have any experience of this kind of LD but it is quite powerful :) In sum I have a 10uF cap...

Thanks for the calculations in that, I think I've seen this before when I tried to work out what resistor I needed! It just slipped my mind :D

Thanks Diachi What wattage would I need to cover this with ? I'd say 1W would be okay ? And would I need a diode going in there so there is no short circuiting from the resistor or will the resistor not do that ? Thanks again, Sorry for the silly questions :p :D !!!!

Okay thanks wizard. I'll make sure I do that. So they just got across from the positive side then go over to the negative side of the laser ? Just like the capacitor is on the picture ? On the picture the capacitor goes across the positive and negative before it goes to my LD do I do the exact...

Okay thanks wizard I will have a look st the wiring schematic, I took my schematic of a basic drawing so that's probably why it's wrong. Thankful it hasn't damages my LD tho. The 7.4v is a lithium polymer battery. It works in the midium voltage of the LD data sheet, minus the lm317 share of...

So I've wired up from the lm317 incorrectly then? And I could only get a 7.4V. I would go 8V but I can't find a hobby pack of that voltage. Would taking th caps of be better then or still leave them on ?

https://postimg.org/image/fctw6amwd/ Here the link of the pic. It's the one on the right. Should be able to see what I've done. Thanks :)

Hi brad, No I've only ran it twice. So I have no reason why it wouldn't have blown! Really hope not, but I don't think it should have. I've been really careful with them so I would be very confused! I haven't checked the connection yet, but will tonight or tomorrow. I've got a old picture...

Hi brad Yes that is correct :p I have a picture I can upload if needed but yes you know what I've done :)

That's good idea checking the out puts on the lm317 tbf, I'll check that out in the troubleshoot plan I have 4 LD in parallel with each other. They all run off their separate circuits with 3xlm317 also in parallel. - hope that helps I think db might be right tho, maybe I'm just reading what I...

Wizard and Diachi, I should've considered this, however I have 3 x lm317 in parallel with each other with a 1ohm resistor = 1.25... X 3 = 3.75 to answer that question! Then this is ran in parallel with the other 4 in the same way. It's parallel parallel if that makes sense :p

Sorry I wasn't clear wizard, Each laser has its own circuit (lm317) ran in parallel with each other.

thanks for ur comment db. I'm thinking along the same lines as you. It can be possible! Since the battery was so low Yes I think it's very interesting of science to cut off the last one! Exciting. They 4W and they have burnt a hole in my leather purse. This time they haven't even burnt tissue...

I just have standard resistors with my lm317. Like I said it might be the connectors to the laser, just wasn't sure if this would be a problem with the battery running low. The circuit is fine, Visually, everything goes to where it should, maybe Its static ? Can't see why it's not showing...