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Thread: How to Phase Shift or Invert PWM in the TC3x7 Series

  1. #1
    Beginner Beginner NYT is on a distinguished road
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    How to Phase Shift or Invert PWM in the TC3x7 Series

    Hi,

    I want to try out the phase shift full bridge control with the following three features.
    Can you provide me with a sample or method to simply check them?


    1. Outputs 8 channels of pwm

     We think it is possible to add the ATOM channel of the previously tried sample.
     Do you have any concerns when considering No. 2 and 3?

     *https://www.infineonforums.com/threa...tion-Kit-TC3x7


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    2.Output the pwm inversion signal.

     I think it's possible to achieve this by using a dead-time module.
     Is there sample code available for reference to use the DTM?

    Click image for larger version

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    3.Output phase-shifted pwm

     The CCU6 would make this happen, but there are only three units, CC60-CC62.
     If you want to combine No.1 and 2 to achieve this with 4 phase x 2 channels, could you please tell me how to achieve the same function with GTM? 

    Click image for larger version

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    Thanks,

  2. #2
    Beginner Beginner NYT is on a distinguished road
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    Hi,

    I will describe the results of the trial after I post it.

    -------------------------------------------
    Board used: KIT_A2G_TC377_5V_TFT
          https://www.infineon.com/cms/en/prod..._tc377_5v_tft/
    Reference source: GTM_ATOM_PWM_1_KIT_TC397_TFT
          https://www.infineon.com/dgdl/Infine...72e73cc93f0236
    -----------------------------------------

    Question 1.
     I specified P02_00 to P02_07 on the evaluation board and output PWM for 8 channels.
     However, when I specified two specific pins, a bus error occurred and it was not possible to output.

      ・IfxGtm_ATOM0_0_TOUT9_P00_0_OUT
      ・IfxGtm_ATOM0_0N_TOUT17_P00_8_OUT

     Can you tell me why some pins cannot be output?

    Question 2.

     I achieved the signal inversion without using DTM by changing the signalLevel of each channel.
     However, this does not allow me to set dead time.
     How do I specify dead time?

      ・atomConfig.signalLevel = Ifx_ActiveState_low or Ifx_ActiveState_high

    Question 3.

     Progress has not been good.


    Thanks,

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