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Thread: The big TEC driver thread!

  1. #401
    Join Date
    Feb 2011
    Location
    New Hampshire
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    3,509

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    Dave,

    Thanks for the link. Very interesting site. He does seem to have "some skills".

  2. #402
    Join Date
    Nov 2005
    Location
    Melbourne, Australia
    Posts
    3,662

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    The Arduino post by Wolfgang inspired me to start tinkering with the project i began on an Atmel XMEGA ages ago.

    Previously, I had ported the Arduino PID code to the xmega, today I got the NTC front end working. Tomorrow Ill try to get the PWM working... Maybe

    IMG_9418.JPGIMG_9417.JPG
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  3. #403
    Join Date
    Jan 2006
    Location
    Switzerland
    Posts
    129

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    I will post my Arduino software soon, I had to rewrite a lot, esp interfacing via USB to tty and LabVIEW. This is now pretty final but almost nothing is done for the LD driver. I am looking into a low noise setup, perhaps involving those ultra-low noise Zeners 2DW232 I had been studying for a while. But low noise and "PWM" (for TEC) are an inherent contradiction, so that remains to be seen..

    Nice work Dave1

  4. #404

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    Oh, I see this thread is back to life ))
    I suspect that my driver was born prematurely, it has linear h-bridge TEC section and uart interface, but I deliberately did not use digital temperature sensors there. So it was just an ordinary TEC controller

  5. #405
    Join Date
    Nov 2005
    Location
    Melbourne, Australia
    Posts
    3,662

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    Finally something finished

    TEC.JPG

    A couple of changes later, I am pretty happy with this little guy.... Whilst it seems more than stable enough for my application which is in some projectors, I'll do some tests to see how accurate it is when i have a bit more free time.
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