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TMS320F2800137: Motor Control Solution: dmpfc

Ankit Saxena
Prodigy 220 points
Part Number: TMS320F2800137
Other Parts Discussed in Thread: C2000WARE

Hi,

We are doing some POC on dmpfc solution, where we are unable to sense stable AC RMS voltage. Can someone tell us what is calculation for setting USER_PFC_MEASURE_THRESHOLD_V (40.0f mentioned in the solution code).

We are giving 100 V from power source to board, but we are getting 137-180 V.

Thanks in advance.

  • 0
    TI__Guru** 116570 points

    You may take a look at POWER_MEAS_SINE_ANALYZER module in Digital_Power_Library_Users_Guide-1.03.00.00.html under the folder as below if you have installed digital power SDK.

    C:\ti\c2000\C2000Ware_DigitalPower_SDK_5_01_00_00\docs

    And you need to set the right AC frequency in user_pfc.h as below

    //! \brief Defines the AC source frequency, Hz
    #define USER_GRID_AC_FREQ_Hz (60.0f) // 60Hz