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BOOSTXL-DRV8301: Current sensing

Safwat Ahmed Choudhury
Intellectual 285 points
Part Number: BOOSTXL-DRV8301
Other Parts Discussed in Thread: LAUNCHXL-F28379D

Hello,

I want a sensored control PMSM with BOOSTXL-DRV8301 and LAUNCHXL-F28379D. I see that it has low side current sensing system in the hardware schematic. but what about the high side current sensing? as for motor control we need to know the 3 phase current. how the high side current sensing (SH A, SH B,SH C) is done?

thanks

safwat

  • 0
    TI__Guru 65410 points
    Safwat,

    There is no High Side current sensing. Using the control method of the EVM, there is always one high side and one low side ON, so therefor we can directly measure the HIGH side and LOW side current directly using only the LS sensing.

    Regards,

    -Adam