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发表于 2013-4-9 21:31:04
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when an ac source initial phase is 0 deg connected to the amp's positive input terminal, then, your phasemargin curver is start from 0 deg;when an ac source initial phase is 0 deg connected to the amp's negative input terminal by a couple cap, then, your phasemargin curver is start from 180 deg |
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