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ATmega8535 for 3 phase DC

Discussion in 'AVR' started by zxc33, Oct 7, 2014.

  1. zxc33

    zxc33 New Member

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    The task is to make the drive to the ATmega8535 for 3 phase DC motor 24V, 40-100 W, and 800 rev / min. without Hall sensors.
    No experience. Advise where to start?
    Maybe there is something ready schematics and software solutions?
     
  2. kubeek

    kubeek Well-Known Member

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    Id suggest searching on sensor-less bldc controllers, there are quite a few appnotes on that topic. Also there will be a few desings you can look at and see how they are done.
     
  3. zxc33

    zxc33 New Member

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    And what? And is there any documentation ready?
     
  4. dave

    Dave New Member

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  5. kubeek

    kubeek Well-Known Member

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    http://bit.ly/1oQ4ZgX Why don´t you check yourself? I can see at least five pdfs that show how its done.
     
  6. zxc33

    zxc33 New Member

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    Thank you, I've seen it all. But I thought I would find a ready drive circuit.
    And I have a particular controller.
     
  7. kubeek

    kubeek Well-Known Member

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    You can download this http://ng.uavp.ch/releases/ngos-0.68.zip and there is ngbldc somewhere inside, its using some atmega and the code should be there too, so you should not have too much trouble adapting it to your needs.
     
  8. zxc33

    zxc33 New Member

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    This is very useful. How to read these files? I could only read *.Pdf , *.Png.
     
  9. kubeek

    kubeek Well-Known Member

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    you dont know how to open a zip? download 7zip or something.
     
  10. zxc33

    zxc33 New Member

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    I poorly explained. In the archive many files with different extensions.
    What program need to install to open them?
    Which development environment to create these files?
     
  11. kubeek

    kubeek Well-Known Member

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    In ngos-0.68\sources\ngblc-4mini\ you have three directories with three different controller firmwares for the atmegas, apparently written in assembler. Use any IDE you like, but the atmel studio 6 should work ok. Or just read the readme files.
    In ngos-0.68\doc\hw-ngblc-4mini-r2\ you have pdfs with the schmatic and the board layout.
     
  12. zxc33

    zxc33 New Member

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    What is different about these programs ngos-0.68\sources\ngblc-4mini\ ?
    My motor with the photoelectric sensor feedback for 720 pulses per rotation. Can I use it instead of the Hall sensors?
    Do the circuit on the ATmega8535 with Hall sensors?
     
  13. kubeek

    kubeek Well-Known Member

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    Frankly I have no idea, you can go through the code and see how it is done and what is different.
    Not sure about the second one, you would need to check with the manufacturer of the controller.
    Third question makes no sense whatsoever.
     
  14. zxc33

    zxc33 New Member

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    Thank you very much for wanting to help.
    I wanted to use a chip ATmega8535 - it is I already have.
    I need different versions of the drive circuits for reflection, it is desirable with this chip.
     
  15. Overclocked

    Overclocked Member

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  16. zxc33

    zxc33 New Member

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  17. Overclocked

    Overclocked Member

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    No, but it shouldnt be too hard to port the Code. I recall seeing an Arduino with a larger processor like yours.
     
  18. zxc33

    zxc33 New Member

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    And what documentation in other folders, how do they differ?
    ngos-0.68\doc\hw-ngblc-4mini-r1\
    and so on ?
     

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