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Old 12-13-2011, 08:52 PM #1
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Default S06J Diode Problem?

I have some SO6J diodes I just opened out of the pack, and I was gonna try them out by connecting them to one of mohrenberg's 568mA driver boards, and I don't get anything out of them. None of them lase off this driver.

I read 2.7vdc out from the driver when it's connected to a 18650, so I wouldn't think (at first) to be the issue. I'm thinking its the diodes. Can anyone confirm this? Or is there some other newbish mistake I'm making somewhere in this proccess?



Mike W.

EDIT:: I just remembered that, according to some tests done on these diodes in another thread, these only begin lasing with at least 3.7v... So, would I be correct in trying to swap driver boards?



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Old 12-13-2011, 08:54 PM #2
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Default Re: S06J Diode Problem?

Did you use two 18650 batteries ? The Moh drivers need 7-8volts to run.
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Old 12-13-2011, 08:58 PM #3
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Default Re: S06J Diode Problem?

You will need two Li-Ions in series with that driver to get it to output anything. A single 18650 is 4.2V and the forward voltage on these diodes is around 6V. I would assume his driver has a 1V-1.5V drop out so you would need at least 7.5V to the driver to stay in regulation. Try two 18350's in series which should give you 8.4V fully charged but that is still only 1-1.5V away from dropping out of regulation.

EDIT I see Blord beat me to it.

Also be careful with hot swapping the diode. Make sure you are shorting the output leads on the driver before connecting diodes to them in case they have a charge in their capacitor.

Last edited by DTR; 12-13-2011 at 09:00 PM.
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Old 12-13-2011, 09:45 PM #4
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Default Re: S06J Diode Problem?

! Thanks guys. Didn't know the driver boards needed that much. I have another 18650 coming in, so I guess I'll have to wait until the other one gets here to try this out. I don't currently have any stable 7-8v sources.

Last edited by MikeWilson; 12-13-2011 at 09:46 PM.
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