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ArcticMyst Security by Avery

GGW 6x blu ray voltage, current






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Feb 5, 2008
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@ High Clown (?) , GGW diodes used to be ran at some 200mA and lived long, now lately they appear to be of lower quality and I do not reccomend crossing 150mA with it. All of Bluray diodes when ran at their optimal-to-maximum currents will use around 4.8-5.0 V.
But make sure you use regulated CURRENT driver, not regulated voltage.

@Lotus Darkhorse. Really?! If you don't want to help him, don't say anything at all.
 
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Thats what's been confusing me lately, id say its a pretty high quality diode then, i was experimenting a few days ago and i pumped like 12v battery with like 180mA or so, the dot was naturally a lot brighter (i mean what a normal laser pointer looks like) but i mean this was brighter then when i pumped ~5v in. Is this just cause the mA were more stable, or is it the voltage that makes it brighter
 
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Hold on, what? You have connected your laser diode to a 12V source?!

Why would you do that?

Are you using any sort of current regulation electronics? What kind of battery are you even using?
 
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its not connected like soldered it was just a test i guess, i just matched the leads to it.

it was a 12v battery cell, the charge was like 8-10v and a stable 180mA, so no there was no regulation but again it was just a test.

my actual laser was gonna be like 4.5-5v at 190mA, so being new to this and these specs "4.8-5.0 V." you gave me, im really confused

i guess what im trying to confirm is that, the voltage should be as kept as low as possible; enough to still power it so like 4.5v and really doesnt have anything to do with the power of the laser. The mA should be regulated at 200mA, and its the mA that control how much power and brightness a laser has.
 
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Well, constant current sources are different than say, batteries which are constant voltage sources.

Current source gives you say, 200mA to work with, and whatever you connect on it, the source will provide as much voltage as needed for the diode to use exactly 200mA.

Voltage source gives you exactly , example, 4.2 V to work with, and what ever you connect on it, it will draw as much current as it can with 4.2 V of voltage.

Now, diodes operate on constant current sources. Since batteries are not it, we have electronics circuits to regulate the current, and thus imitating the battery+driver as one constant current source.

Though, since you have already connected the diode to 12V, it is most likely dead.

Nevertheless, you should go ahead and try to construct, or buy if can't make, a driver set to some 150mA and see if the diode lights up brightly.

If it only gives you a faint glow, like a very weak LED, then it's dead.
 




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