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TMS320F28062F: Over modulation with two hall sensors

Eric Ma
Intellectual 2630 points
Part Number: TMS320F28062F
Other Parts Discussed in Thread: MOTORWARE

Hi Champion,

My customer used two hall current sensors to sample 2 phase motor current.

But customer want to use the over modulation, wan to check the max value of USER_MAX_VS_MAG_PU .

ERIC

  • 0
    TI__Guru** 116090 points

    Hall current sensor samples continuous current of motor phase, don't need to use the OVM current sample function in motorWare. Can't set USER_MAX_VS_MAG_PU to maximum value or other smaller value.

  • 0 in reply to Yanming Luo
    TI__Intellectual 2630 points
    Hi Yanming,
    Sorry I cannot understand why hall current sensor cannot use over modulation, even use three hall? In my opinion, C2000 sampling hall current still in PWM count = 0, it is similar with shunt sampling, and will also affect by MOS noise in high modulation.
    Can you give more additional description?
    ERIC