Chapter 6, Problem 6.10EP

Reconsider the circuit in Figure 6.38. Let $\beta =120$ , $V_{BE}\text{(on)}=0.7\text{V}$ , and $V_A=\infty$ . The circuit parameters are given in Exercise Ex 6.7. (a) Plot the dc and ac load lines on the same graph. (b) Determine the Q−point values. (c) Determine the maximum symmetrical swing in the output voltage for $i_C>0$ and $0.5\le {\upsilon }_{CE}\le 9\text{V}$ . (Ans. (b) $I_{CQ}=0.884\text{mA}$ , $V_{CEQ}=2.9\text{V}$ ; (c) $\Delta {\upsilon }_{ce}=4.8\text{V}$ , peak−to−peak)