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CPU load - Sensorless FOC vs Sensorless Trapezoidal

Anton Karlsson
Prodigy 130 points

Other Parts Discussed in Thread: CONTROLSUITE, INSTASPIN-BLDC

Hi TI,

As the subject suggests I am interested in the difference in CPU load between the two (sensorless) control algorithms. I have been able to track down the following document:

6518.5811.Motor Control Benchmark.pdf

This however seems to focus on the sensored FOC solution and the sensorless trapeziodal ditto. 

So the question is; are there any data available regarding this issue?

Kind regards
Anton

  • 0
    TI__Guru** 119680 points

    your link was for a Hercules ARM Cortex R4 device. Not sure if that's what you're looking for or not....

    In C2000 MCUs, for our "standard" solutions in controlSUITE there is always a project document which has the CPU cycles for the project. Ex:

    C:\ti\controlSUITE\development_kits\HVMotorCtrl+PfcKit_v2.1\HVPM_Enhanced_Sensorless_2803x\~Docs

    943 cycles

    C:\ti\controlSUITE\development_kits\HVMotorCtrl+PfcKit_v2.1\HVBLDC_Sensorless\~Docs

    431 cycles

    then there are more advanced InstaSPIN solutions

    InstaSPIN-BLDC

    C:\ti\controlSUITE\development_kits\DRV830x-HC-C2-KIT_v105\InstaSPIN_BLDC\~Doc

    749 cycles

    InstaSPIN-FOC

    http://www.ti.com/lit/pdf/spruhi9

    2425 cycles

  • 0 in reply to ChrisClearman
    Prodigy 130 points

    Perfect, thanks! 

    I must have missed those documents.

    /Anton