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BluRay Driver?!

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Daedal

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Yea Ken, that's what I said... this thing is very small... Can effectively fit inside the chromed AixiZ module easily.

Steve, this is the 102 that I ordered... I looked through all the different ones they have and they are all the same. I was at a loss trying to decide which one would work, so I just randomly picked.

Hope the pictures help... will be supplying actual practical data later on;
DDL
 





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stevetexas

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I just bought 5 of each, but I think they're probably identical... Let me know how well this driver does with the reds...
 
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Daedal

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Sounds great man... I went with the USPS first class and had a ton of stuff shipped in the same box for $2 and for them in 2 days... so I'd suggest that for you :) Their packaging is something to idealize. I will make some measurements and see what this thing can do. The sheet says can drive diodes up to 1W, but I'm guessing that is 9V - 3V nominal = 6V Then 6V * 200mA = 800mW for a safe barrier and can maybe go up to 1W but may need some cooling.

I doubt it'd be anything useful for the red diodes, I'm definitely using it for the BluRay though. At 7.5 - 8V Supply I'd have 4.5 - 5V output and I can regulate the current... Can't go wrong really.

3 heads are better then one. There's yourself, SenKat and I now working on these, we're bound to come up with something;
DDL
 
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stevetexas

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Just curious why it wouldn't be useful for the reds?? I think that with the potentiometer on board, you should be able to adjust the current to whatever output you like.

Am I missing something??? :-[
 
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Daedal

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Well... Assuming a perfect 3:2 input:eek:utput, at 200mW we'd need 300mA. This thing maxes out at 200mA... so, we may be able to drive it by maxing the driver's output, but it would probably be quite insufficient...

At least that's how I see it;
DDL
 
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Daedal

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With the testing that I have done already... I can report as follows...

1. The controller is GO!
2. I noticed a rather quick ramp up in power when starting the diode.
3. IT IS SMALL!!! AND HARD TO SOLDER TO... :(
4. The little pot on there is extremely sensitive... :mad:
5. Very nice control and doesn't heat up as much as I suspected.
6. I have ramped it up to 160mA, didn't need to go any further, and as such that is where I stopped. It seems to warm up at such high drive power though... :-/
7. I like it, and trust it with driving a BluRay diode, and that is what I got it for ;) :D

GL;
DDL
 
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Daedal

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Scratch that... It gets pretty damn hot at 100mA. :mad:

Well... I suppose a little non-conducting thermal paste and having it transfer the heat out to the metal is a possible solution, but I doubt it... It's really nicely packaged and organized, but the heat factor is not very promising... :-/

--DDL
 
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Daedal

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Ok, tested it on a BluRay diode... This is pretty much useless! IT powers the diode up to about 10mW and then stops... I managed to get it up to 18.5mW MAX, after which it did the exact same thing :(

Bummer;
DDL
 
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zerafiel

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Isn't the ns102 the same driver as those found on cheap red laser pointers?

10mW seems like a decent and good operational output since the blu-ray diode is rated at only 20mW. What do you mean by it brings it up to 10mW and then stops. Does the diode stop lasing or does the power output stop increasing?

I would be quite happy if I can use this driver to drive a blu-ray diode up to 10mW. So is this good enough for that? I know you guys always want max output!

I thought the br diode threshold current is ~30-40mA and this site
http://www.fineartradiography.com/hobbies/lasers/blu-ray/index.html
suggests operating it at only 10mA above that for good lifetime so how come Daedal is looking at 100mA and above for operating his br diodes??
 
marks47

marks47

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I thought the br diode threshold current is ~30-40mA and this site : fineartradiography
suggests operating it at only 10mA above that for good lifetime so how come Daedal is looking at 100mA and above for operating his br diodes??
Click to expand...

I wonder that myself.
I bought the first driver circuit on the diodes & drivers page (I can't post a link yet)from meredith instruments and it seemed to work at first, until I realized (too late) I was giving the diode too much voltage. I started off with a weak-ish 9volt that seemed to be doing OK, but then I switched to 6 AA's and it went 90% dim on me. It had been running at 50ma with both batteries... I just didn't realize the voltage would be that much different, or make that much difference.
So I am guessing I wasted my money and diode on this driver. What diode would be taking that much voltage (over 8 volts) at 100+ma?
 
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Ashton

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Some of us would be concent to get even 5mw of Bluray laserlight! I agree, for the price 10mw is not bad. and it's so small it could be mounted, as stated, inside the axiz case! jsut extend the case a tiny bit and your whole laser fits inside! incredable!

Though a question... any way to use this to access the bluray AND red diodes on the BR diode? maybe sodering to a switch then to the two legs?
 
marks47

marks47

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the consensus I've seen seems to be not to do it. first and foremost because of heat if you were to use them both at once. but it would also be semi-useless because you'd have to re-focus the lens to infinite each time you switch colors.
 
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BlueFusion

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If I were to get one of these, what is a good current for a bluray diode? Safe that is. I think 10 mw is OK for a violet!
 
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Daedal

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From experience you'll need a minimum of 30mA for the diode to lase. Although, I've had some that need up to 40mA before they start to lite up :eek:

In terms of output power, I wouldn't suggest much more than 5mW. A good limit is once the pattern becomes clearly evident, go up only another 5mA and a max of 10mA above that :)

--DDL
 
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