SFIV Super/Ultra Combo Controls Help

So, I’m kinda new to SFIV and I’m trying to get a hang of the controls but the only thing I can’t do is Super/Ultra Comb, was wondering if anybody has any tips as to pulling these off with PS3 controllers.

I noticed you can do a 120 with the control stick in any direction (E.G. instead of left to right, you can do do bottom to top) do pull off EX moves but thats pretty much the extent of my “skill” lol

Anyways thanks for the help, I appreciate it