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F28069 experimental kit and DRV8301(F28035)

KV
Expert 1800 points
Other Parts Discussed in Thread: DRV8301, MOTORWARE, DRV8301-69M-KIT, LVSERVOMTR

Hi,

I have F28069 experimental kit and F28035 DRV8301-HC-EVM RevC motor control kit.  By connecting these I intend to implement TRM InstaSPIN FOC and Motion. 

Is it feasible?.

Pl suggest.

Thx & rgds

KVRao

  • 0
    TI__Guru** 118790 points

    Unfortunately not.

    For the MCU you need an F2806x that is InstaSPIN-FOC and/or -MOTION enabled.  These are designated with an (F) or (M).  The (M) is the superset and can run all (F) projects.  For all the kits we use TMDSCNCD28069MISO

    For the DRV8301 EVM it looks like you have a version several years old. We have been using - and all of the software for the GUIs and MotorWare - use Revsion D.  This is nearly identical except we populate the external op-amps (NOT using the internal DRV8301 PGAs) and changed some of the R/C components to give the scaling we like.  You COULD adapt the MotorWare code to use the feedback from the DRV8301 PGAS, but it would take a bit of time and adds some risk.

    I know the kits aren't cheap at $299, but since you need to buy a new controlCARD at $99 anyways, I would just buy the entire up to date package of DRV8301-69M-KIT

     

  • 0 in reply to ChrisClearman
    Expert 1800 points

    Thanks Chris for the inputs.  I intend to use the kit for automotive application and if I am right InstaSPIN-FOC and or Motion are sensorless.  Noticed from other threads in e2e for automotive application its better go with encoder.  Could I implement the same with the DRV8301-69M-KIT.  Of course with DRV8301 EVM I modified the code to adopt the encoder.

    Pl suggest.

    Thx & rgds

  • 0 in reply to KV
    TI__Guru** 118790 points

    indiantuktuk,

    InstaSPIN-FOC is sensorless, using the FAST observer.

    InstaSPIN-MOTION can be sensorless velocity (using FAST observer) or sensored (encoder/resolver) velocity or position+velocity with IS-FOC as the inner torque loop

    The encoder projects are in MOTION (proj_lab12x, proj_lab13x).

    It is NOT true to say that automotive applications should be sensored.  MOST three phase motors in a transportation application can/should be sensorless: pumps, compressors, fans, lifts, etc.

    There certainly are some applications that require a sensor today (power steering, some traction) for position control, ultra slow speed velocity control, or safety reasons.

    Yes, the DRV8301 EVM can interface with a motor with an incremental encoder.  The Encoder projects in IS-MOTION are built for this kit and use the Teknic LVSERVOMTR as teh demonstration motor.