*Possible* Cheap Pre-built LD Driver!

[ericab]

anybody think any of these drivers would be appropriate in driving SenKat's GB Diode?

specifically im looking at the "EU-37 laser diode driver board" or the
"EU-38 laser diode driver board"

h t t p:// w w w.roithner-laser.com/Drivers.htm

-eric

 

[LarryQ]

Ummm...You forgot the link.....

Of what driver do you speak????

LarryQ

 

[justin07]

iam not to good with electronics but you would have to look at the ma out put for what i know and theres no link

 

[ericab]

LOL! sorry

 

[Gazoo]

Yes, the EU-38 would work. It is good up to 1.2 amps. The EU-37 is only good to 200ma.

http://www.roithner-laser.com/Drivers.htm

From what I understand shipping is astronomical so it would be beneficial only if someone wanted to do a group buy on them.

 

[ericab]

gazoo; wouldnt the EU-37 laser diode driver board be more realistic since the GB diode from SenKat in CW mode only draws 130mA?

 

[corim123]

It can draw more though if you push it. I am pretty sure.

 

[ericab]

in other words;

if i was to 'overclock' my diode, rated at 130, 200 would be as much as i'd want to risk it no?

 

[Hemlock_Mike]

I've pushed one of the GB diodes to 500 mA !!!!  That's with TEC cooling.

I would recommend staying at 250 to 275 mA ( WITH HEATSINKING) untill you have a feel for the circuit and diode.  Once you are happy with the laser, push the other one to the MAX !!!  Be Careful..

Mike

I must have a computer problem here, many posts here don't show capital letters or punctuation.  I gotta check this out - It makes reading difficult for me.

 

[Gazoo]

The point is even if you want to run your diode at 130ma, what are you going to do 6 months from now if we find 300ma diodes. If someone did a GB for the EU-38, I would but a few.

And Mike is right, don't push your diode too hard to begin with. You will be surprised what 200ma of current can do.

 

[Hemlock_Mike]

Gazoo --  

You got it -- Start in a LD "safe" area, enjoy and then start pushing the limits.  There's a bunch of us who went for the MAX right away and went to bed unhappy.
Ooohhh -- you won't believe what 350 mW can do !!! Slash tape !!!

Mike

 

[Gazoo]

Well I have already went to bed unhappy a couple of times. I don't think it is because I pushed the diode too hard, but rather ran it too long. I need to be more careful.

I have my TEC cooler and LD independently powered by two of daedal's circuits, but running off the same power supply.

My RS rheostats came today so I have very good control over the TEC and LD.

 

[SenKat]

I must have a computer problem here, many posts here don't show capital letters or punctuation.  I gotta check this out - It makes reading difficult for me.

LOL !!! Yer KILLIN ME !

G !

 

[LarryQ]

THose EU-38's look good to me!!!

Does anyone know the cost per unit, or what the shipping works out to be....

I can see myself getting 1/2 dozen or so right off the bat!!!

Maybe we can coerse Daedal to do another sample deal for testing.....that way we can know what we're getting before we order!

If I had the proper equipment to be able to test .......

Oh well....

But seriously..those look like WINNERS to me!!!

Just imagine the flashlight mods we could do!!!!

WOOHOOOOOO

LarryQ

 

[Gazoo]

Here is a pic of the peltier with the two LM317T's heat sinked:

 

[Gazoo]

And here is the other side with the rheostats. I love 3M double sided sticky tape.. ;D