Electronics 9v brushless dc motor

Discussion in 'Modding' started by Snipes0990, 16 Apr 2007.

  1. Snipes0990

    Snipes0990 What's a Dremel?

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    i am looking to control a 9v brush less dc motor (the Lego mindstorms kind) using pwm signals to control speed generated by a basic stamp micro controller can anyone recommend a schematic. thanks
     
    Snipes0990, 16 Apr 2007
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  2. Xiachunyi

    Xiachunyi What's a Dremel?

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    I've never dealt with brushless motors before but after some searching, this might be of some help to you.
     
    Xiachunyi, 16 Apr 2007
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  3. Snipes0990

    Snipes0990 What's a Dremel?

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    Ok never mind the brush less part, lets just say that i want to control two 9vdc motors using pwm signals to control the speed generated by a BASIC stamp micro controller, i am wondering if anyone has done this so that i can avoid buying an actual chip that controls this stuff for sozbots
     
    Snipes0990, 25 Apr 2007
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  4. Wolfe

    Wolfe What's a Dremel?

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    Lego doesn't have brushless motors.

    They are brushed.


    FYI, Brushless motors are far more complex to drive than normal brushed motors.
     
    Wolfe, 27 Apr 2007
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  5. cpemma

    cpemma Ecky thump

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    PC fan motors are brushless; they're easy enough to PWM control. ;)
     
    cpemma, 27 Apr 2007
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  6. Macaba

    Macaba What's a Dremel?

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    Thats missing a crucial fact though, Wolfe is right. Its just that PC fan motors have built in controllers, which are able to withstand PWM.
     
    Macaba, 27 Apr 2007
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  7. Xiachunyi

    Xiachunyi What's a Dremel?

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    Xiachunyi, 27 Apr 2007
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  8. Wolfe

    Wolfe What's a Dremel?

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    Har Har
     
    Wolfe, 28 Apr 2007
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  9. Snipes0990

    Snipes0990 What's a Dremel?

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    ok nvm the whole brushless thing, lets just say i wanted to control a 9v motor and drop the speed using a lm317t voltage regulator i could have multiple lm317's set for diff voltages and thus diff speeds but is there a way to adjust one or resistance using a pwm signal generated by a basic stamp micro controller
     
    Snipes0990, 8 May 2007
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