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Thread: "Big Blue" quad laser diode driver with H-bridge TEC controller and buck converter

  1. #1
    Join Date
    Nov 2010
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    Default "Big Blue" quad laser diode driver with H-bridge TEC controller and buck converter

    Previous thread is too confusing, I decided to start another one

    This is not a selfie, just a photo
    Click image for larger version. 

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    This blue board includes:

    4 channel highside analog LD driver with bias standby (SBS). Upto 3A/ch
    2 channel buck dc-dc converter
    1 channel H-bridge (bidirectional) TEC controller. Upto 6/10A @12V

    as well as:
    start delay, soft start, diodes, baseplate and pcb overheat control and many other features

    The project is under improvement at the moment...

  2. #2
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    and how about some sort of output so this information could be displayed in a screen using an arduino?
    Eat Sleep Lase Repeat

  3. #3
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    Nov 2010
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    such as temperature? It is not difficult, but it is not claimed for me )

  4. #4
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    Dec 2006
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    yes temps, diode current, if somethings over heating etc...
    Eat Sleep Lase Repeat

  5. #5
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    Nov 2010
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    I use NTC as temperature sensors, they are not too accurate for this.. Also, to accurately shows current, need to add a few sensors. For the rest, eg overheating, there are 3 LED's on the board

  6. #6
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    Dec 2006
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    3 leds = very helpful when sealed inside a projector case
    Eat Sleep Lase Repeat

  7. #7
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    Nov 2010
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    arduino = very helpful when projector case fixed on the traverse and folks dancing around
    decision - to transmit data through wi-fi, he-he
    Last edited by Bbe; 07-27-2014 at 11:59.

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