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InstaSpin BLDC GUI PU current

Omar Mohammed1
Prodigy 180 points

Other Parts Discussed in Thread: CONTROLSUITE

The current listed in the InstaSpin BLDC GUI is in pu how do I calculate the actual current (pu= actual/base)? When I don't have information on any of the parameters?

Thank you,

  • 0
    TI__Guru** 119680 points

    It's in those pesky quick start guides.

    From

    C:\ti\controlSUITE\development_kits\DRV830x-HC-C2-KIT_v104\~GUI\QSG-DRV830x-HC-C2-KIT-GUI.pdf

    or

    C:\ti\controlSUITE\development_kits\DRV8312-C2-KIT_v128\~GUI\QSG-DRV8312-C2-KIT-GUI-InstaSPIN_BLDCv100.pdf

    Page 7

    Current: The knob adjusts the per-unit (PU) commanded current through the motor. Note: The DRV830x-HC-EVMs have a measureable current range of +/-82.5A which is normalized to a +/-1.0 per-unit (PU) scale.