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Design >> Analog Design >> loop gain of hysteretic buck regulator
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Message started by xuedashun on Jun 9^th, 2012, 8:37pm

Title: loop gain of hysteretic buck regulator
Post by xuedashun on Jun 9^th, 2012, 8:37pm

I am working on a hysteretic buck regulator. I know this topology is
always stable. But I have a question about the open loop gain of this
topology. Since the comparator is a non-linear circuit and I do not know
how to use linear model to represent this block. I just got a feeling that
the loop gain is not very high.

Does anybody know how to calculate the loop gain of this topology? Could you provide some document? Thank you very much!