Issue of PWM implementation in F2812 for 3-level inverter

Thiru

Prodigy 90 points

I am working in F2812 MCU for generating PWM's for 3 Level inverter.

Please refer Fig 1 as the 3 level topology and Fig 2 as the my proposal to generate PWM's for 3 level inverter.

Issue of this proposal is synchronization configuration is not available between Timer 1 and Timer 3.

My requirement is Timer 1 and Timer 3 should have same count value after enabling those timers.

Any TI expert can you please help me on the same issue.

Thank you

Thiru

Fig 1: 3-Level topology

Fig 2: Proposal of PWM generation for 3-Level topology

over 13 years ago

0 Thiru over 13 years ago

Prodigy 90 points

Hi Again

I need of valueable support from TI, Kindly provide me some suggestion w.r.t previous mail.

Thank you

Thiru

0 ChrisClearman over 13 years ago in reply to Thiru

TI__Guru** 119680 points

I suggest you move to any device beyond F2812 that has independent ePWM modules instead of the Event Managers. These ePWM modules make it possible to more flexibly share time bases.

F28335 is the most logical step for this type of research, or you could use any Piccolo device (we often use the F28069 as our main development platform).

0 Thiru over 13 years ago in reply to ChrisClearman

Prodigy 90 points

Hi Chris,

Thank you very much for the suggestion.

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Issue of PWM implementation in F2812 for 3-level inverter