Solved: Most practical amplifiers have internal feedback
Chapter 6, Problem 6.112(choose chapter or problem)
Most practical amplifiers have internal feedback that make them nonunilateral. In such a case, depends on To illustrate this point we show in Fig. P6.112 the equivalent circuit of an amplifier in which a feedback resistance models the internal feedback mechanism that is present in this amplifier. It is that makes the amplifier nonunilateral. Show that Evaluate and for the case k M mA/V, and k Which of the amplifier characteristic parameters is most affected by (i.e., relative to the case with )? For k , determine the overall voltage gain, with and without present.
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