Duty Cycle Control

Hi everyone,

I am using XC164CS DSP. I need to programme in such a way that duty cycle can be controlled. According to application, its a close loop current or voltage control but I didnt manage to do it in order to get the phase shift between the two legs of the converter. I need to get the phase shift by calculating duty cycle. it's a 20khz frequency of the signal

Can anyone help me on this?

Thanks,

Vivek