walid Posted July 8, 2005 Report Share Posted July 8, 2005 I read this: "The ideal parameters are never fully realized but they present a very convenient method for the preliminary analysis of circuitry. So important are these ideal definitions that they are repeated here. The ideal amplifier possesses1. Infinite gain2. Infinite input impedance3. Infinite bandwidth4. Zero output impedanceFrom these definitions two important theorems are developed.1. No current flows into or out of the input terminals.2. When negative feedback is applied, the differential input voltage is reduced to zero."My question is about the last line, that is what the meaning of the differential input voltage? Quote Link to comment Share on other sites More sharing options...
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