• State TI Thinks Resolved
  • Locked Locked
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 82 subscribers
  • Views 449 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

CCS/TMS320F28379D: TIDM 1000: what is the nature of ILmeas current (sine, triangular?)

Avi P
Expert 1100 points
Part Number: TMS320F28379D


Tool/software: Code Composer Studio

Hello there,

I am looking into TIDM 1000, In the main code, there are IL1meas, IL2meas, IL3meas, what are the nature of that signals? Are they triangular or sinusoidal or what in nature? Also, are they in 120-degree phase difference? 

Also In the schematic of this, what is SD_data and RSH? what is the main use of that?

  • 0
    TI__Genius 15935 points

    Hi Avi,

    1.I am looking into TIDM 1000, In the main code, there are IL1meas, IL2meas, IL3meas, what are the nature of that signals? Are they triangular or sinusoidal or what in nature? Also, are they in 120-degree phase difference? 

    [Chen] They are sensed current values after averaging. So theoretically, they are discrete and sinusoidal values if you look at them from AC input perspective. Yes, they are 120 degree phase shifted with each other phase.

    2.Also In the schematic of this, what is SD_data and RSH? what is the main use of that?

    [Chen] SD_data is the sensed current value through sigmal delta filter module which is the not the default option for customer to use. But they could also try to use it instead of ADC. RSH is the input to the AMC modulator.

    Regards,

    Chen