As I tried to derive the transfer function of the boost converter(peak current mode control) in CCM and DCM as Vout(s)/Verr(s) using the CC-PWM switch model accordingly to the book of Pr.Christophe Basso, I am currently facing some issues regarding the PWM switch model in Current mode. because in the Voltage mode I can derive the equations however when it comes to the current mode I cannot really derive it as I am completely confused about the PWM switch itself how is it derived. If I want to structure my questions, I will start first by showing you the model on the picture of the Pr.Christophe Basso ;
my questions are: as he derived his PWM switch model; I am wondering where is the term Verr and instead I find the term Vc which I don#t understand how he derived it? How do I replace the Vap and Vcp here, it seems to me for example in boost converter I have to use just the average value?
in the reference given, I checked the Dissertation Of Dr.Cuk but I found out that he was using state space machine and I want to learn to do it in PWM switch model for current control mode.