Yabut, R_out is inside the opamp feedback loop, and C_esr isn't. (If I'm following correctly) GH
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4 years ago
Opamps as voltage sources (C-loading)
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4 years ago
But L_out dominates even more, that's the problem. (The goal of the RCRC network, of course, is to dominate both, so the amp is stable by itself, /and/ the output is kept accurate.)
Tim
-- Seven Transistor Labs, LLC Electrical Engineering Consultation and Design Website: https://www.seventransistorlabs.com/
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4 years ago
Yes, and it's the whole feedback loop that determines stability. R_out is part of that.
NT
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4 years ago
I guess just treating it as (increasing) R_out was my error.
NT