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Thread: laser power supplys

  1. #1
    Join Date
    Jul 2007
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    west sussex uk
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    Default laser power supplys

    i am thinking of driving all of my lasers from one larger supply
    instead of having three supplys i want to use a single 5v 30amp to drive all three and save space in a already clutterd case
    question is will it be safe to do so and will this cause any problems with any of the lasers?
    hope somone knows the answer

  2. #2
    Join Date
    May 2006
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    Native Floridian
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    Default

    I have 3 lasever lasers in my projector and they are all run off of a 5V 20A supply. The supply is overkill, however it still takes up less space than the 3 original supplies. I don't see how it could cause a problem, prior to me using the single supply I had problems with the 3 not wanting to work properly together, then when I switched to the single supply the problems went away.

  3. #3
    Join Date
    Jul 2008
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    Eugene Oregon
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    Default

    where did you find the 5 volt 20 amp supply?
    -Josh

  4. #4
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    Default

    I like using Jameco for electronic parts and supplies. They've changed thier web site a bit recently and its a bit harder to find supplies in my opinion. If you just place 1 order they start sending you catalogs all the time, which is nice! The supply I use is a Meanwell.

    www.jameco.com

  5. #5
    Join Date
    Dec 2006
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    Essex, UK
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    Default

    i run all 3 lasever module and 4 fans off a computer psu

    outputs 5v at 20amps
    Eat Sleep Lase Repeat

  6. #6
    Join Date
    Nov 2007
    Location
    Sydney, Australia
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    Default

    I currently run 3 Laserwave lasers (200mw Green, 250mW Blue & 400mW Red) of one 5V 30A supply (cosel brand) and it runs fine

    Keeps the clutter down

    Just gotta watch how you do the cabling as you might end up drawing high current DC through it, I'm using proper heavy duty DC cabling (stuff made for battery chargers, solar panels) from the power supply to a distrubution point where the lasers connect and it gets warm
    RTI Piko RGB 4 Projector
    CT6215 Scanners & CT 671 Amps; CT6210 & Medialas Microamps. GS124PD
    RGBLaser Systems 6000mW RGB Module - 638nm/445nm/532
    LD2000 Pro + QM2000.net + Beyond
    Etherdream + LSX

    Old Projector Build


  7. #7
    Join Date
    Jul 2005
    Location
    Tampa Florida
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    502

    Default one supply Vs three

    This will work fine and reduce size, weight and "clutter". The only downside is if the supply should fail you will have NO light and...it could cook all three of your lasers at the same time; that would supremely suck. Make sure the one you choose is reliable and reated for the total current with a saftey margin. Phil 142laser
    Phil Bergeron( AKA 142laser)

  8. #8
    Join Date
    Mar 2007
    Location
    Rotorua New Zealand
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    Default

    What about fitting a heavy "crowbar" Zener with a fuse in each feeder cable to each laser.
    If the voltage exceeds say 5.2volts it blows the fuses.

    Then should the power supply go ape and go overvoltage at least your lasers stand a chance of survival ..
    Just an idea ..

    Cheers

    Ray
    NZ

  9. #9
    Join Date
    Jul 2008
    Location
    Eugene Oregon
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    Default

    Quote Originally Posted by Pitts View Post
    What about fitting a heavy "crowbar" Zener with a fuse in each feeder cable to each laser.
    If the voltage exceeds say 5.2volts it blows the fuses.

    Then should the power supply go ape and go overvoltage at least your lasers stand a chance of survival ..
    Just an idea ..

    Cheers

    Ray
    NZ
    a man using his head

    that would be a lot safer!
    -Josh

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