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GB: PL520 murder fund






bloompyle

bloompyle

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Do not use an X-Boost with more than 4.2V! Direct word from Angelos, these weren't meant for that type of voltage. I'm running my 520 fine with an X-Boost and a single 18650. These are boost drivers, they were MADE for LOW voltage builds.
 
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Blord

Blord

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I made a mA/mW chart from the data.

attachment.php
 

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ARG

ARG

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Thanks Blord! :) The diode is now up to HALF AN AMP and still lasing :eek: I thought it was about to die soon after 400mA.

By the way guys, you can open a chat on the wide of the spread sheet. Click on the "Other viewers" in the top right.
 
ARG

ARG

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It stopped outputting light at 760mA. I drove it up to 1A after that and it didn't die, still outputs the same when I turn the current back down. This is the most resilient diode I have ever come across.

From the data of the first diode I would say a cap of 350mA for these diodes.

I think to kill it I will have to see what kind of wavelengths it makes at 100°C ;)
 
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DTR

DTR

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This seems to be a common theme with newer diodes that are coming out. We have seen it in diodes like the 445's, 638's and that new 405 that Lazeerer got a few samples of which was also a 3.8mm diode.
 
ARG

ARG

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I'm glad they are this resilient now. My first few laser diode experiences were not happy ones :p

I hope nobody minds if I go in 10-25mA steps for the second diode, this first one took all afternoon to catalog. I was expecting these to die at around 400mA so I thought 10mA steps would be ideal. :rolleyes:

I'll make the graphs after the data from both diodes is obtained.
 
ApexProxy

ApexProxy

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I did drive mine up to 500mA and it is still kicking perfectly though the output saw no benefit at over ~350mA. I am now set on driving mine a little harder than I was first going to. I did however notice a barely visible wavelength difference as I cranked mine up past 400mA.
 
IsaacT

IsaacT

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I am thinking about driving mine at 300mA, does this sound reasonable for decent lifetime?
 
ApexProxy

ApexProxy

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I don't think any of us have enough research on them to even know the direct effects of high current on the lifetime. They seem resilient but until we have a lot more runtimes on them I don't see it being possible to make a very good guess. Based on our driving of other diodes we typically get away with double currents and the diodes appear to survive quite well.
 
IsaacT

IsaacT

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Oh well...I still have to figure out driver setup. I have a C6 Host coming my way from Mohgasm....I may just wire it up in there for the time being. I could use a Linear Driver with 2 Cells for an easy build that I could take apart once I get my Host and Driver for the MS-V4 build....
 
Tw15t3r

Tw15t3r

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Seems to be asymptotic at around 130mW... So since they're that resilient, might as well target to run them at 130mW?
 
ApexProxy

ApexProxy

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From my exp its generally best to run below the maximum output point. For my builds, I usually target somewhere in the middle of between the point of greatest efficiency and greatest output.
 
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