This is what a TRACKING PRE REGULATOR looks like | Power supply design series ep. 2

Today we put together a tracking pre regulator with an lm2756, it functions, but it’s pretty noisy.
Also I try to explain how it works, but I really don’t know at the moment. If you do know, we need your help!
If you only ever do what you understand you will never learn anything new. Humans need to fail to learn so this is that in a sense….