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ArcticMyst Security by Avery

Question on blue ray build, and type of connector

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Can anyone help me ? I have looked through threads and I know answer is there somewhere I just have not found yet.(new, sorry). I put order in for group buy on blue ray diodes. Can someone tell me what the operating current and voltage will be for these blue ray diodes? Also does any one know what type and or size(what there called) the connectors are that connect the laser module with heat sink to the driver board, on the 5V 70mW red laser w/ driver board, that can be purchased from Deal Extreme for $17.24. I purchased a handfull of these from DX and was using the driver boards with other mods. I wanted to order the little 2 pin connectors online, but don't know what there called. Thanks for any help, DREW8110
 





Abray

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Re: Question on blue ray build, and type of connec

the blu-ray should have ~38 mA of current running to it, and at least 5 V to lase. However, if you are using Daedal's circuit(many people use that circuit, including me!), then you will need a 9V battery.

however, I don't know what you are talking about those connectors...sorry
 
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Re: Question on blue ray build, and type of connec

And the resistor in should be 33 ohm. Mine lase at 4.3 v, the BR's are very different from diode to diode, so dont expect that yours will will be the same.
 

Abray

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Re: Question on blue ray build, and type of connec

FireMyLaser said:
BR's are very different from diode to diode, so dont expect that yours will will be the same.

very true, mine starts lasing at around 20 mA(I haven't tried it at any lower current), and the highest its been is 40mA. They can go over 40mA, but they last longer when they don't, and I want mine to last a long time ;D
 
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Re: Question on blue ray build, and type of connec

Laseig threshold is 23ma for my diode.
 
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Re: Question on blue ray build, and type of connec

a bluray needs a minimum of 4.5volts to work and 38ma to start lasing but each diode is different and you may require less current
 

chido

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Re: Question on blue ray build, and type of connec

Toked, I think you mean that 38mA is as high as you can go, they start lasing at about 20-25mA, it depends on the diode, just look at all the posts above. 38mA is as much as you want to go with these if you want them to have a long and happy life. ;D
You might be able to go higher, like 45 or 50 but it's easier to just leave it at 38 since all you need is a 33ohm capacitor, no pot. Plus the higher current won't make much of a difference in but it will greatly affect the diode's lifetime.
 
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Re: Question on blue ray build, and type of connec

the type of connector you're looking for is called 60/40 rosin flux core solder.
 

Gazoo

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Re: Question on blue ray build, and type of connec

pseudolobster said:
the type of connector you're looking for is called 60/40 rosin flux core solder.

Right ON... ;)

I finally harvested another BR. It doesn't start lasing until I have it up to 55ma's. It puts out around 20mw's at 75ma's. It is acting exactly like the Nichia diode. Look at the table for it on Leslie's website:

http://www.fineartradiography.com/hobbies/lasers/blu-ray/diode.html
 

jayrob

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Re: Question on blue ray build, and type of connec

Gazoo said:
[quote author=pseudolobster link=1203382422/0#7 date=1203398897]the type of connector you're looking for is called 60/40 rosin flux core solder.

Right ON... ;)

I finally harvested another BR. It doesn't start lasing until I have it up to 55ma's. It puts out around 20mw's at 75ma's. It is acting exactly like the Nichia diode. Look at the table for it on Leslie's website:

http://www.fineartradiography.com/hobbies/lasers/blu-ray/diode.html

[/quote]

Hi Gazoo, you got that diode from a PS3?
Jay
 

Gazoo

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Re: Question on blue ray build, and type of connec

Sure did. I know it's strange. My other BR started acting weird. The most current it would take was 30ma's....this is using a 5 volt regulator. I don't know if ESD damaged it or not but I don't know what else it could have been...I was running it from a PSU through the 5 volt regulator.

This new one easily takes 75ma's and I know I could go higher. But I have it backed off to 65ma's or about 12mw's. It does seem a lot brighter too. I am stumped. I am running the BR's with batteries from now on.
 

jayrob

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Re: Question on blue ray build, and type of connec

Gazoo said:
Sure did. I know it's strange. My other BR started acting weird. The most current it would take was 30ma's....this is using a 5 volt regulator. I don't know if ESD damaged it or not but I don't know what else it could have been...I was running it from a PSU through the 5 volt regulator.

This new one easily takes 75ma's and I know I could go higher. But I have it backed off to 65ma's or about 12mw's. It does seem a lot brighter too. I am stumped. I am running the BR's with batteries from now on.

75mA! That would kill most PS3 diodes huh? I have another one of those writer drives on the way. I got it for $220. I'm going to set my driver for 75mA's. If it is the same as the one I started the graph on, it should put out around 50 to 55mW's at that current. Gazoo, I should be able to do the voltage test to the case, without turning it off & on correct? Just have it on, and with one probe on the heatsink, touch the other to either pin...
Jay
 

Gazoo

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Re: Question on blue ray build, and type of connec

I would start out with 10ma's or so just to make sure everything is hooked up correctly. You should still be able to see some light emitting from the diode. The best way to check continuity is to use the resistance setting on your ohm meter. Be very careful about ESD...I think these diodes are very sensitive to it.
 

Abray

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Re: Question on blue ray build, and type of connec

sorry for the off topic, but what's ESD?

and thats crazy that it doesn't even lase until 55 mA!!!! it must be rare to find one like that.
 

chido

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Re: Question on blue ray build, and type of connec

Electro
Static
Discharge
;D ;D ;D
 

Gazoo

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Re: Question on blue ray build, and type of connec

Abray said:
sorry for the off topic, but what's ESD?

and thats crazy that it doesn't even lase until 55 mA!!!! it must be rare to find one like that.

Yup it is crazy. I am almost tempted to take it up to 30mw's output. But I only have one sled left so I want this diode to last awhile. :D
 




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