Hi ChungChing,
What you see the voltage waveform on Rsense is normal and no need to be filtered. If you have current probe on the motor phase, you will see the sine waveform without the noise you see from the Rsense. The Rsense voltage is including the driving current and the recirculation current from ground to VM through the body diodes.
Best regards,
What you see the voltage waveform on Rsense is normal and no need to be filtered. If you have current probe on the motor phase, you will see the sine waveform without the noise you see from the Rsense. The Rsense voltage is including the driving current and the recirculation current from ground to VM through the body diodes.
Best regards,
