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DRV8312-C2-KIT: Abnormal high-speed operation

user4708725
Expert 1030 points


The software path I used:  D:\ti\controlSUITE\development_kits\DRV8312-C2-KIT_v128\BLDC_Sensored

Hardware:DRV8312EVM RevD

I set the program to run in Level6.When I use the BLDC motor provided by TI development kit (DT 4260-24-055-04) I can control the speed in any of those cases  .

I'm trying to use the different motors such as Maxon.

The phase voltage waveform of the motor at 1000 rpm is as follows.

The phase voltage waveform of the motor at 6000 rpm is as follows.

1.At 6000 rpm, the waveform of phase voltage is seriously distorted. How should we solve this problem?

2.My ultimate goal is to run the motor to 40000 rpm, BLDC_Sensored can it be realized?

  • 0
    TI__Guru** 116460 points

    As replied to you in former threads you posted, check if the feedback speed (peed1.Speed) is right, if not, go back to use level2/3/4 to make sure that the connection sequence of both motor and hall sensor wires are correct. Follow the application guide to run the project from level 1 to level 4 as well, that should be easy to run a new motor for you.