Repeat the analysis of problem 15 for the network of Fig. 9.80 with the addition of a source resistance and signal source as shown in Fig. 9.84. Plot the gain Avs = and comment on the change in low-frequency cutoff as compared to problem 15.

Fig. 9.84

problem 15

For the network of Fig. 9.80 :

a. Determine r_e.
b. Find Avmid = V_o/V_i.
c. Calculate Z _i.
d. Determine f_LS, f_LC, and f_LE.
e. Determine the low cutoff frequency.
f. Sketch the asymptotes of the Bode plot defined by the cutoff frequencies of part (d).
g. Sketch the low-frequency response for the amplifier using the results of part (e).

Transcribed Image Text:

Vo (Vs/