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C2000 controllers AC/DC EVM kit-fuse blowing again and aagain

mahesh kumbhar
Prodigy 130 points

Hi

I am mahesh am using C2000 controllers  AC/DC EVM kit- which has PFC stage and phase sifted DC-DC stage. I am using acdc.pjt file but when i choosing options Debug--->Reset CPU command at that time auxillary supply current increases and fuse is blowing.

Please tell me possible solution.and testing points to verify.

  • 0
    TI__Genius 10995 points

    Please never reset the controller while the AC/DC power stage is powered directly from the AC source. You should turn the AC power off, apply only the +3.3V power for the controller and then you can reset the controller.

    Please follow the documentation provided with the kit to power it up.

    Also, as a suggestion, this is a very old kit. You can find much improved version and higher power kits similar to this at TI website. We have high voltage PFC kit and high voltage PSFB kit. These are new kits and we suggest you work with those kits.

    Shamim

  • 0 in reply to Shamim Choudhury
    Prodigy 130 points

    Thank you for solution.

    On same kit i am working on PHF2PHIL hardware part. upto build number 6 i am able to run hardware.but at build 7 and build 8 i am facing problem.

    When i am running programme  Gui_Vpfcset is not changing it reaming at zero  position  only.so that i am not able to run Full PFC stage on this kit.

    i also tried with Vpfcset variable.but it is not changing

    Please suggest solution to run this part.

    Thank you.