This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

motor with rated load current waveform distortion

Evaluation board:  drv8301-hc-evm revd

Lab 10a Overmodulation

Motor with small load current waveform is basically sinusoidal wave, motor with rated load current waveform distortion,

changing which parameters can improve the motor with large load current waveform?

The waveform measured at the motor speed of 400rpm is as follows:

The current waveform of motor with small load is as follows:

The current waveform of the motor with large load is as follows:

The motor parameters are as follows

Nominal voltage V                  24

No load speed rpm                60800

No load current mA               282 

Nominal speed rpm               57500

Nominal torque (max. continuous torque) mNm           23.6

Nominal current (max. continuous current) A               6.45

Stall torque mNm                  561

Stall current A                      149