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Thread: laser diode drivers

  1. #1
    Join Date
    Nov 2014
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    mid michigan
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    792

    Default laser diode drivers

    quick question,
    for laser diode drivers that are constant current, is there a difference between the ones used for red diodes vs ones for blue and 405nm, I know the voltage is different but with CC does that matter?

    my back up driver exploded and i am not sure what to replace it with on a tight budget. I had used it for different diodes over the last few years, that and i don't remember where i got it from
    Polk SDA SRS, Parasound HCA 3500, Luxman M117, Onkyo 504, 7.62X39, sometimes a ball on a string is the greatest of toys for us nonhuman types. oh and some lasers, lots of lasers

  2. #2
    Join Date
    Jan 2006
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    Charleston, SC
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    2,147,489,114

    Default

    Some red diode drivers can't handle the higher forward voltage drop of the blues and greens. (Example: The new 520 nm greens need nearly 8 volts across them.) If your red driver is only designed to run on a 5 volt supply, then it won't be able to run a 445 nm blue.

    If it runs off a 12 volt supply and can handle the higher current, then it should work.

    Adam

  3. #3
    Join Date
    Oct 2012
    Location
    Germany
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    Default

    ... my own drivers runs with 12V, so no difference ... and actually I'm testing an 'industry' driver with 24V - so even more voltage, if needed.

    But one of my scavanged 652nm-modules needs >160Volts to run!! ... it was used in a medical device for intravascular treatment and emits up to 20 Watts out of 60 combined 400mW-diodes, which are hooked up serial ...

    Viktor

  4. #4
    Join Date
    Nov 2014
    Location
    mid michigan
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    Default

    Thank you for the info, That confirms what i thought, one of these days i will have 420 green, i just wish they where not as pricy.
    Polk SDA SRS, Parasound HCA 3500, Luxman M117, Onkyo 504, 7.62X39, sometimes a ball on a string is the greatest of toys for us nonhuman types. oh and some lasers, lots of lasers

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