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[DRV8301-69M-KIT] Question from customer

Ichiro Fukui
Intellectual 1310 points
Other Parts Discussed in Thread: DRV8301-69M-KIT, MOTORWARE, BOOSTXL-DRV8301, LVSERVOMTR

Hi,

Our customer bought DRV8301-69M-KIT and I got following question from them.

1. When the customer use the GUI composer and spin the motor, is it possible to change the PWM frequency? If it is possible, could you let me know the instruction?

2. Could you let us know the list of motors which is proven with DRV8301-69M-KIT?

Thanks in advance.

regards,

 Fukui

  • 0
    TI__Guru** 114905 points
    Hi Fukui-san,

    1. When the customer use the GUI composer and spin the motor, is it possible to change the PWM frequency? If it is possible, could you let me know the instruction?

    Will provide this information soon.

    2. Could you let us know the list of motors which is proven with DRV8301-69M-KIT?

    The kit is designed to work with motors at less than 40A and 60V. It may be easier to provide your motor specs and we can confirm if it will work.
  • 0 in reply to Rick Duncan
    TI__Intellectual 1310 points

    Hi Rick-san,

    Thank you.

    They are using maxon 404080 motor, which is 24V, 30W. From this, DRV8301-69M-KIT should be able to spin it. The coustomer mentioned that the motor spins, but it is not smooth.

    regards,

     Fukui

  • 0 in reply to Ichiro Fukui
    TI__Guru** 114905 points
    Hi Fukui-san,

    Can you provide more details? When the motor does not spin smoothly, what is the motor accelerating or running at a set speed? When the motor running is not smooth, what speed is the motor?
  • 0 in reply to Ichiro Fukui
    TI__Guru** 119420 points
    1. to change the PWM frequency you need to run the projects in MotorWare

    the Maxon motor is only 1.25A
    The kit supports 40A motors
    Current resolution for this combination is poor.

    To get better performance
    1. use a more appropriate inverter, such as DRV8312-69M-KIT which supports 7A or BOOSTXL-DRV8301 which supports 14A
    2. properly tune the speed controller
  • 0 in reply to ChrisClearman
    TI__Guru** 119420 points
    2. thousands of motors have been run with this kit. from the motors that TI provides I would recommend LVSERVOMTR