I have found a good document from TI on how to calculate the passive components required to design a stable compensation network/analogue feedback loop, here: http://www.ti.com/lit/an/slva662/slva662.pdf. It says in the document that "We can find the required C1, C2, C3, R2, and R3 once we select R1 with the desired fp0, fp1, fp2, fz1, and fz2 as follows." However, it gives absolutely no explanation as to how to find the desired poles and zeroes of the system? In my case I have a resonant switched mode power supply and a CLC pi filter on the output to filter ripple. How would I decide where to place the poles and zeroes without trial and error?
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