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CCS/BOOSTXL-DRV8301: Input Current Limitation

Jinan
Intellectual 480 points

Part Number: BOOSTXL-DRV8301
Other Parts Discussed in Thread: MOTORWARE

Tool/software: Code Composer Studio

Dear TI team,

 I am working with F28069M launchpad and DRV 8301 to spin a small motor, however I want to control the input current that loads the motor. 

Example from 5A to 2.8 A. 

Is there a way to do so ?

If you can point me any example (explanation, etc. )

Regards, 

  • 0
    TI__Guru 66550 points

    Jinan,

    Thanks for posting on the forum!

    Are you using our motor driver EVM? Or your own board? 

    Are you using some GUI software or your own code?

    The way this is usually done is by implementing a current control loop or using an on board current measurement and limiting the current in the software.

    Regards,

    -Adam

  • 0 in reply to Adam Sidelsky
    Intellectual 480 points

    Dear Adam, 

    thanks for your reply. I am using my own board (F28069M Launchpad development kit and a Boostxl-DRV8301 evaluation module), working with ccs v9 and GUI universal from within the ccs. 

    I am still a fresh beginner with this environment, and I am applying labs from the Motorware. 

    I am not so into coding, hence it would be helpful if you point out where can I find 'current control loop', I mean a similar example, or application.

    Best Regards, 

  • 0 in reply to Jinan
    TI__Guru 66550 points

    Jinan,

    Since you are using TI boards and software the C2000 team should be able to help you with the current control. 

    I will forward your post to them, the post will stay here in this location.

    Regards,

    -Adam

  • 0 in reply to Adam Sidelsky
    TI__Guru** 117160 points

    You can control the output current to motor on TI's EVM board you used, which will control the input current indirectly. You have to add a dc bus current sensor if you want to control the input current directly.