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Old 04-24-2016, 06:46 AM #1
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Default Which kind of drivers do CNI 589nm use?

Hello, does anybody know if the 589nm laseres which CNI produces (those which Dragonlasers calls "Spartan") use linear or switch mode laser drivers?
I am asking because I'd like to modify one.
Having a 589nm with visible beam must be awesome but sometimes I want to make it eye safe. For this case I wanted to build a little switch mode driver in thes size of an 16340 battery and use a 16340 battery to drive the laser.
The switch mode driver will output a lower voltage so the laser does not operate at full power.
If they use linear drivers it should be easy to do such a modification. If they use a switch mode driver I would have to look up how they behave.


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What I have to say first: Sorry for all mistakes I make. But I hope everyone understands my english, thank's
Lasers:
RGB Laser *click me HARD*
<1mW 337,1nm TEA-laser HOMEMADE!*click me HARD*
150mW 405nm RIP HOMEMADE!
500mW 405nm pen HOMEMADE!*click me HARD*
1000mW 445nm 3D Printed Host Build HOMEMADE! *click me HARD*
1000mW 447nm Dragonlasers Spartan
300mW 532nm Skylaser 517mW peak H532L-S300B skylaser
50mW 589nm Dragonlasers Spartan Variable Power Mod *click me HARD*

500mW 635nm HOMEMADE!*click me HARD*

My first tesla coil! : *click me HARD*
My first BIG one! : *click me HARDER*


Want to make a simple diffraction grating?
http://laserpointerforums.com/f49/di...tml#post952546

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Old 04-26-2016, 01:57 AM #2
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Default Re: Which kind of drivers do CNI 589nm use?

Pretty much any portable laser with an IR pump is going to use a LDO driver (linear). I would not recommend altering the drive current. Because of the nature of DPSS and the unstable environment of a handheld device, the output is not linearly proportional to the input current. In some cases, lowering the current by 10% will lower the output power by 90% while making it flicker. Output attenuation might be a better method.

Of course, if you use proper safety precautions, all lasers are eye-safe.
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Old 04-26-2016, 04:09 PM #3
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Default Re: Which kind of drivers do CNI 589nm use?

Thanks Cyparagon. So you mean I should dim it via PWM? That would be another way to go. I don't want to decrease the amount of output by a specific value. Actually I wasn't sure if I should order the 5mW or 50mW model.
Attenuating the output might be a solution but then the laser still comsumes the full current and gets warm too. I guess this wont be as easy as expected.
__________________
What I have to say first: Sorry for all mistakes I make. But I hope everyone understands my english, thank's
Lasers:
RGB Laser *click me HARD*
<1mW 337,1nm TEA-laser HOMEMADE!*click me HARD*
150mW 405nm RIP HOMEMADE!
500mW 405nm pen HOMEMADE!*click me HARD*
1000mW 445nm 3D Printed Host Build HOMEMADE! *click me HARD*
1000mW 447nm Dragonlasers Spartan
300mW 532nm Skylaser 517mW peak H532L-S300B skylaser
50mW 589nm Dragonlasers Spartan Variable Power Mod *click me HARD*

500mW 635nm HOMEMADE!*click me HARD*

My first tesla coil! : *click me HARD*
My first BIG one! : *click me HARDER*


Want to make a simple diffraction grating?
http://laserpointerforums.com/f49/di...tml#post952546
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