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please help me wire up a laser module

Discussion in 'LEDs and Optoelectronics' started by rjlwest, Jul 2, 2016.

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  1. rjlwest

    rjlwest

    4
    1
    Jul 2, 2016
    Hi, I have 4 x 10mw 3.2vdc laser module and I have an AC adapter with a DC3.2V 500mA output.

    I bought these last year and can't remember the research I put in, I think my plan was to put them in parallel but now I think I may need resistors?

    Please could someone guide me, maybe even link to a tutorial so I can learn it all.

    cheers.


    Mod Note: edited title and OP's post]
     
    Last edited by a moderator: Jul 3, 2016
  2. Krapoman

    Krapoman

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    Jul 3, 2016
  3. davenn

    davenn Moderator

    13,880
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    Sep 5, 2009
    hi there
    welcome
    can you tell us more about the laser module. make / model and a photo or 2 would help


    Dave
     
  4. rjlwest

    rjlwest

    4
    1
    Jul 2, 2016
  5. Krapoman

    Krapoman

    5
    0
    Jul 3, 2016
    They have to be wire in parallel.
    And you don't need a resistor. eventually a fuse..
     
  6. rjlwest

    rjlwest

    4
    1
    Jul 2, 2016
    cool, thanks.
     
  7. davenn

    davenn Moderator

    13,880
    1,964
    Sep 5, 2009
    yes, those laser modules have a laser diode and a driver circuit built into the casing
    so they are all go for putting across the 3.2V supply
     
  8. rjlwest

    rjlwest

    4
    1
    Jul 2, 2016
    thanks, before I switch everything on, barring a bit of insulation tape, do these connections look ok? is this everything a parallel connection needs?

    http://imgur.com/a/EZENb
     
    davenn likes this.
  9. Krapoman

    Krapoman

    5
    0
    Jul 3, 2016
    All positives wired with positive, all negatives wired with negative.
    On the pictures, it looks ok.
     
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