The parameters of the transistors in the circuit in Figure P17.27 are (beta_{F} equiv beta=25) and (beta_{R}=0.1).

Question:

The parameters of the transistors in the circuit in Figure P17.27 are \(\beta_{F} \equiv \beta=25\) and \(\beta_{R}=0.1\).

(a) Determine the values of \(i_{1}, i_{2}, i_{3}, v_{1}\), and \(v_{O}\) for (i) \(v_{I}=0.1 \mathrm{~V}\) and (ii) \(v_{I}=2.5 \mathrm{~V}\).

(b) Determine the values of \(v_{I}\) and \(v_{1}\) at the point (i) where \(Q_{o}\) just begins to conduct and (ii) where \(Q_{o}\) just goes into saturation.

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