RAMPS 1.4 convert 12V on D9 to 6-8.4V

Discussion in 'The Projects Forum' started by canteen334, May 12, 2016.

  1. canteen334

    Thread Starter New Member

    May 12, 2016
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    0
    Hello, I ordered this laser and a RAMPS 1.4 outputs 12V on D9. The laser says it can input 6-8.4V so I need to step down the voltage on the RAMPS 1.4. I am completely new to this so I don't know what to get. I was thinking on getting either this or this. Please leave your opinion on whether this would work or not. Thank you.
     
  2. dl324

    Distinguished Member

    Mar 30, 2015
    3,250
    626
    Welcome to AAC!

    If you just bought the power supply, is returning it an option? You'd be better off getting one closer to your requirements. If you want to keep the supply, the first option you mentioned would be more efficient.
     
  3. mcgyvr

    AAC Fanatic!

    Oct 15, 2009
    4,771
    971
    either one should work just fine..
    You could just make your own with a LM317, a few resistors and capacitors too..
     
  4. canteen334

    Thread Starter New Member

    May 12, 2016
    3
    0
    I'm currently using an atx power supply that someone gave me and I'm trying to keep the build within a budget. Thank you for your response.
     
  5. canteen334

    Thread Starter New Member

    May 12, 2016
    3
    0
    Thanks for the response!
     
  6. dl324

    Distinguished Member

    Mar 30, 2015
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    You can modify the ATX supply to give you a variable output option. Google "ATX variable bench power supply".
     
  7. GopherT

    AAC Fanatic!

    Nov 23, 2012
    6,073
    3,856
    What does one do with a 1.5W green laser?
     
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