Hi Kirana, Sorry for my delay. I was on work travel all last week and just got back today. For the phase imbalance issue you can see that the U-phase is higher than V-phase at some speeds and lower at others. I think steps to diagnose the root cause of the imbalance need to be taken. Since you said you've had success using the DRV8353 and the f2800157 launchpad eval boards the issue must be related to the (1) custom hardware or (2) the software configuration for your custom hardware. Can you use a current probe and available plotting tools (DAC output, CCS plotter, etc.) to compare the different phase current sensing? You need to verify that the magnitude and phases are correct for each sensing. The current sensing needs to be closely validated. Running BL#2 with low load should help with verifying this. Check if the phase voltages are balanced by probing them. Does the HW layout for the different phases differ? i.e. length / trace width / etc. Are the connections to all 3 motor phases properly made? Best, Kevin
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