I have read in many design documents that Peak Current Mode Control eliminates the pole due to the filter inductor of the DC-DC converter. I would like to know how it eliminates it. I would like to work out on my own and see the result as to how the Inductor pole is eliminated in the case of Peak Current Mode Controlled simple Buck Converter. Can anyone help out please... I would like to design a controller for this. So if the Inductor pole is not there in the Transfer Function, the compensator will be a simple PI controller. But I am not able to eliminate the pole due to Filter Inductor in a simple buck converter transfer function which is causing me to use a slightly complex compensator transfer function. So I would like to know how this Inductor pole is eliminated in Peak Current mode controlled Buck Converter.
If you consider that the inductor current in your buck converter is under apeak current mode control, then you will be abloe to find that the two poles of the converter are real and one of them is much larger than the other one. This simplifies the design of the compensator by neglecting the high frequency pole.
Thanks for your reply sir.
Sir, I would like to know how to arrive at a point so as to neglect the Inductor Pole.
I mean to ask what are the transfer functions we need to derive so as to come to this conclusion. I have been searching for documents in support of this fact, but I could not find one. Can you guide me in this aspect so that I can derive those transfer functions and get convinced about this fact.
Thank you sir for your valuable time.
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