Could u please give proof for Imax formula of peak rectifier with capacitor ??

 

This is not a simple formula to derive. You need to know the phase angle when the diode turns on and turns off.
Simple approximations can give reasonable estimates of peak diode current.

See this:

http://www.zen22142.zen.co.uk/Design/dcpsu.htm

 

Could u please give proof for Imax formula of peak rectifier with capacitor ??

What kind of rectifier? A schematic would certainly help.

 

http://whites.sdsmt.edu/classes/ee320/notes/320Lecture8.pdf

page 6 of 10 .formula of Idmax. Please have a look this link.

 

Your lecture notes have shown how it is derived.

 

I want to see where this Imax comes from with the formula The Lecture notes is not enough for me.

 

Then follow the approach outlined in the lecture notes and do your best to answer your question. Show your work here and we will tell you when/if you go off track and help get you back on.