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Hi,
I would like to ask regarding Rcomp and Ccomp nearby COMP pin.
These components are included in the following calculator.
PMP40555_LM5155_56_Excel_Quickstart_Calculator_for_Flyback_Regulator_Design.xlsx
Why are these components required nevertheless phase is compensated at the series regulator(e.g. TL431) side?
Best Regards,
Kuramochi
Tadahiko-san,
the Ccomp and Rcomp at the COMP pin is there to compensate the pole created from Rpullup and Cce (or Copto).
regards,
Julian