# Consider the transformer-coupled common-emitter circuit shown in Figure P8.33 with parameters (V_{C C}=12 mathrm{~V}, R_{E}=20 Omega, R_{L}=8

## Question:

Consider the transformer-coupled common-emitter circuit shown in Figure P8.33 with parameters \(V_{C C}=12 \mathrm{~V}, R_{E}=20 \Omega, R_{L}=8 \Omega, R_{1}=\) \(2.3 \mathrm{k} \Omega\), and \(R_{2}=1.75 \mathrm{k} \Omega\). The transistor parameters are \(\beta=40\) and \(V_{B E}(\) on \()=0.7 \mathrm{~V}\).

**(a)** Determine the quiescent value \(I_{C Q}\).

**(b)** Determine the turns ratio \(a\) such that the maximum power is delivered to the load.

**(c)** Determine the maximum power that can be delivered to the load if the voltage \(v_{1}\) is to remain in the range \(2 \leq v_{1} \leq 20 \mathrm{~V}\).

**(d)** Using the results of part (c) and neglecting currents in the bias resistors, find the conversion efficiency.

## Step by Step Answer:

**Related Book For**

## Microelectronics Circuit Analysis And Design

**ISBN:** 9780071289474

4th Edition

**Authors:** Donald A. Neamen