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Motor speed controller design for a Faulhaber 1509 6V

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Replies: 7

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Hi ,

I need to control four brushless DC motors of 6V with three hall sensors, my requirements are to have a precise control at low speed, to work on a low supply voltage (5V will be fine) and to be the smaller as possible. Do you have some suggestions of design for me ?

data sheet of the motor :www.micromo.com/.../1509_B_DFF.pdf

Thanks for your help.

  • Hello Hugo,

    I believe the TI reference design that would help you is TIDA-00196 which can be found at http://www.ti.com/tool/TIDA-00196. If you are not able to make this work for your design, more TI reference designs for Hall Effect sensors can be found at https://e2e.ti.com/support/sensor/hall-effect-sensors/f/966/t/355909. If none of these are able to help you, let me know and I'll see what we can do.

    Best Regards,

    Mitch M, TI Sensing Products Applications Support

    Getting Started with Current Sensing Video Training Series

    Hall Effect Sensor Video Training Series

    TI makes no warranties and assumes no liability for applications assistance or customer product design. You are fully responsible for all design decisions and engineering with regard to your products, including decisions relating to application of TI products. By providing technical information, TI does not intend to offer or provide engineering services or advice concerning your designs. All information in this correspondence and in any related correspondence is provided "as is"  and is subject to TI's Important notice and disclaimer.

  • In reply to Mitch M:

    I was looking at the drivers before you answer and I saw the DRV10970 , at first look it could be good, what do you think about this for my application ?
  • In reply to Hugo Paquet:

    Hello Hugo,

    For your information, I am reaching out to the Motor Drivers team for your last question, and I will let you know what I find out.

    Best Regards,

    Mitch M, TI Sensing Products Applications Support

    Getting Started with Current Sensing Video Training Series

    Hall Effect Sensor Video Training Series

    TI makes no warranties and assumes no liability for applications assistance or customer product design. You are fully responsible for all design decisions and engineering with regard to your products, including decisions relating to application of TI products. By providing technical information, TI does not intend to offer or provide engineering services or advice concerning your designs. All information in this correspondence and in any related correspondence is provided "as is"  and is subject to TI's Important notice and disclaimer.

  • In reply to Mitch M:

    Hugo,

    To keep you posted, The Motor Drivers team won't be able to get back to me until after the holiday weekend.

    Best Regards,

    Mitch M, TI Sensing Products Applications Support

    Getting Started with Current Sensing Video Training Series

    Hall Effect Sensor Video Training Series

    TI makes no warranties and assumes no liability for applications assistance or customer product design. You are fully responsible for all design decisions and engineering with regard to your products, including decisions relating to application of TI products. By providing technical information, TI does not intend to offer or provide engineering services or advice concerning your designs. All information in this correspondence and in any related correspondence is provided "as is"  and is subject to TI's Important notice and disclaimer.

  • In reply to Mitch M:

    Hi Hugo,

    Sorry for delayed response. DRV10970 should be perfect fit for your application. DRV10970 works with 3 hall sensor input and can even provide power to hall sensor using 5 V regulated output. 

    Regards,

    Krushal 

  • In reply to Krushal:

    Fantastic - we have the same need, and I have that particular motor and driver eval board (DRV10970EVM) in front of me.  We are having a hard time getting it to work, however - the motor attempts to spin up, but then almost instantly goes into "locked mode."  I'm betting at this point that we don't have the correct U/V/W and A/B/C correspondence between the coil outputs, motor drive inputs, and Hall sensor hookups.  I don't suppose anybody happens to have solved that what this match-up is?

    Also, I am using jumpers J5/7/8 since the Hall sensor outputs are "IC style", but not using any resistors on R17/18/19 ... is that a problem?

    Thanks much!

  • In reply to Jeffrey Chrisope:

    Hi Jeffrey,

    Output of Hall ICs are generally open drain and they need pull ups. Can you please monitor hall signals and make sure that they have clean square output. Resistor R17/R18/R19 are connected in such way that they act as pull up for hall inputs.

    For identification of hall input for corresponding phase, please refer Application Information section and mainly toward end of the section.

    Can also monitor phase current and provide some wave forms.


    Regards,
    Krushal

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