TMS320F28035: how to find the example code for Software Library: PWM with Dead Band Compensation

Dear  Ramesh ,

Thanks for replying.

.in your comment you mentioned "it is a  pretty old method."

you mean it is not accurate method ?

would you please tell me what makes TI to switch to other method ?

I am using TMS320F28027F ,so would it be possible to use CLB in that chip?

thanks for attention

Dave.

Dave,

I have not seen what you are referring to, but suspect it may be current sensing based method. If true, it may be prone to zero crossing related jitters. Compared to that, with our CLB based devices, we can implement votlage based scheme that may perform better. In any case, i dont have access to the code you are referring to, to provide any help with that.

Ramesh Ramamoorthy said:

I have not seen what you are referring to

hi , I am running 6kw  550VDC ACIM motor  scaler control (V/F) ,motor vibrate so badly and current oscillate between 1~12A!!!

it turn out that this problem is from wave distortion due to dead band!

now I want to find the solution to solve this problem.

thanks dear Ramesh 

Dave.

thanks dear Ramesh ,