Hello,
Can anyone help me understand how the transfer function of the GPWM_PS(f) (equation 107) in the datasheet of the UCC28180 was derived ?
The GPWM_PS(f) is the control-to-output transfer function of the PFC, but what is the "control law" this IC uses.
In the following link, the control-to-output transfer function and its control law of the conventional PFC is clearly stated:
ridleyengineering.com/.../276-a23-small-signal-analysis.html
A block diagram would be very helpful or any kind of explanation or documentation.
Thank you very much for your time !
