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Thread: Building driver for bipolar step motor

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    Question Building driver for bipolar step motor

    First of all I would like to hello everyone on forum and say this is my first thread.

    I am in stage of collecting pieces for my machine.
    I have 5 of Nanotec-Munich Modell: 4T5618S2404-A motors.

    Bipolar-Parallel
    Nennspannung / Phase = 1,25 V
    Nennstrom / Phase = 3,6 A
    Nennhaltemoment 2 Phasen = 0,79 Nm
    Schrittwinkel = 1,8°
    Widerstand / Wicklung = 0,35 Ohm
    Induktivität bei 1 kHz = 1,2 mH
    Wicklungszahl = 4
    Litzen = 4

    For a long time I am looking for drivers for them.I have to say that I want to build them (DIY).In first I was thinking something like L297/L298 or similar.
    But I read it would be better that drivers have microstep mode.So,I started to search for that kind of drivers.I found a few of them but none for current my motors are rated( 3.6A ).
    In one moment A3986 seem to be prefect for me ( one small chip ,few external components ,current limit, external MOSFETs...). But as I have read A3986 has some problems.
    So,I am asking can somebody help me to solve my problem - DIY driver for motors above?

    Boogi
    P.S. Since English is not my mother tongue I have to apologize if I made some mistakes


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    Nobody?
    I saw TMC249.
    Any suggestions?


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    Have you looked at the Toshiba TB6560 driver Chip?


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    This one can do 5amps. http://www.cnczone.com/forums/steppe...o-stepper.html



    I just realized that this is an old thread.
    Last edited by KOC62; 02-17-2012 at 09:15 AM. Reason: Old thread


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    Quote Originally Posted by KOC62 View Post
    This one can do 5amps. http://www.cnczone.com/forums/steppe...o-stepper.html



    I just realized that this is an old thread.
    Hello;

    The above mentioned drive is neither for sale nor available for DIY anymore, the bipolar output stage's design and commercialization rights were sold a few years ago to a local company who uses them in a proprietary robotic mechanism.

    The PC interface (K4) board's schematics, firmware, B.O.M. etc are posted on a CNCzone thread and are 100% free, you can use the K4 PC interface with 80v 8 Amps unipolar (Mardus Kreutz) power stages. Note that the K4 requires a few 0603 SMD components and the assembly level is not recommended for beginners.

    Best regards,

    Kreutz


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    Is the current of 3,5A enough for my motors?


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    Thank you Kreutz,

    I was looking your post about Allegro A3986 and schematic called ster3986-07_sch.png.
    I am planing to buid it and I was wondering could you send me values of components on schematic?
    Thanks in advance


  • #8
    Registered KOC62's Avatar
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    You list your motor in your first post as 3.6A.
    Yes, 3.5A is enough for your motors.


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