TMDSHVMTRPFCKIT: Noisy running Level5

Green Deng

Part Number: TMDSHVMTRPFCKIT

Dear team:

My customer is using the R1.1 version of the kit to control the operation of the motor, using a servo motor control routine.
In Level5, when RunMotor=1 is set, the motor rotates, but there is a lot of noise, which is completely different from the previous test module. There was almost no noise during the previous speed test, but the position test was very loud. What is the reason?

Best regards

over 4 years ago

0 Santosh Jha over 4 years ago

TI__Guru 50611 points

Hi Green,

Due to holiday break, the subject matter experts are out of office until end of the year. So please expect response by end of first week of January. Sorry for inconvenience.

0 Yanming Luo over 4 years ago in reply to Santosh Jha

TI__Guru** 116350 points

Which reference code is using? And what PWM frequnecy is setting in the reference? Could you please post some current waveforms when the motor is runnning in Level 5?

0 Rong over 4 years ago

Prodigy 30 points

I also have the same problem. The transformer makes noise and the motor can’t rotate smoothly. I’m afraid that the transformer is broken, so I can’t receive the current or voltage signal.

+1 Yanming Luo over 4 years ago in reply to Rong

TI__Guru** 116350 points

Check if the current sensing signals are good if you are using your own board, and check if the sensoed or estimated rotor angle is correct if run the motor with closed-loop.

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TMDSHVMTRPFCKIT: Noisy running Level5