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.

IL_PFC works only in open loop

Other Parts Discussed in Thread: TMS320F28027

Dear all,

I tryed to work a IL_PFC project with TMS320F28027 device.

In a open loop it works very fine (the PWM signal vary with dutyA_DC, the ADC module works) but when I

passed to incr_build 2 or 3 (close current loop and then current and voltage loop) the duty_cycle is always 0,1 and it

doesn't change if I change the input voltage or  load or a variable "Vbus_cmd".

Please can someone help me becouse I am very confused