• State Resolved
  • Locked Locked
  • Replies 2 replies
  • Subscribers 82 subscribers
  • Views 491 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/TMS320F28335: TMS320F28335

Ishfaq Muhammad
Prodigy 30 points
Part Number: TMS320F28335


Tool/software: Code Composer Studio

Hello!

i am working with 3 level Modular Multilevel converter. For PWM generation i am using TMS320F28335 controller board. the PWM signals 1A,1B and 2A,2B are applied to upper arm of Phase A and PWM signals 3A,3B and 4A,4B are applied to lower arm of phase A  having phase shift of 90 degree between PWM signals. Now i want to apply PWM signals to Phase B and Phase C. and we know that the phase angle difference between phase A,B and C is 120 degree.  kindly help how i have to give pwm signals to phase B and C? i have attached the line diagram of modular multilevel converter

 

  • 0
    TI__Mastermind 42195 points

    Isfaq,
    If you wish to control each of these gates independently you will need at least 24 PWM channels. The device you have selected only has 12 ePWM channels, along with a few rudimentary APWMs. It simply doesn't have enough channels to drive all of the gates.

    You could use two F28335 devices with external synchronization, or switch to another device that has more PWM channels, for example any of the F2837x devices found here: www.ti.com/.../products.html

    Regards,
    Cody

  • 0 in reply to Cody Watkins
    Prodigy 30 points
    Thank you Respected Cody Watkins. i would definitely consider your valuable suggestion.