Best way to adjust/set SMPS comp / compensation parts


I’m having difficulties with settings the right values for the comb / compensation for some SMPS circuits I’m working one.
Is there a good way to set them right? To make sure of stable operation in the full load range of the SMPS.

Hope some one can give me some tips on what the best way is for this

Best Answer

I assume you mean the resistor and capacitor in series that you'll find on many Linear Technology switcher ICs that compensate the regulation loop.

Usually standard values are given in the datasheet, but Design Note 186 from Linear Technology describes how you can actually test the transient response dynamically which allows you to optimize the component values. It's a compromise between settling time and over/undershoot.