Specify Gain And Phase Margins On All Your Loops
When purchasing a power supply, the knowledgable buyer should specify the
gain and phase margins of all feedback loops within a power supply. The
commonly- specified main loop should be specified for stability margins not
only as shipped with local sense, but with remote sense and extra output
capacitance as well. Any separately-regulated additional outputs should be
specified too, and also the margins of the current limit loops if the supply
has active current limiting.
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