For the common-base network of Fig. 5.176 :

a. Determine Z_i, Z_o, and A_vNL.
b. Sketch the two-port model of Fig. 5.63 with the parameters of part (a) in place.
c. Determine A_vL and A_vs.
d. Determine A_vL and A_vs using the r e model and compare with the results of part (c).
e. Change R s to 0.5 k and R L to 2.2 k and calculate A_vL and A_vs. What is the effect of changing levels of R_s and R_L on the voltage gains?
f. Determine Z_o if R_s changed to 0.5 k with all other parameters as appearing in Fig. 5.176. How is Z_o affected by changing levels of R_s?
g. Determine Z_i if R_L is reduced to 2.2k. What is the effect of changing levels of R_L on the input impedance?
h. For the original network of Fig. 5.176 determine A_i = I_o > I_i.

Transcribed Image Text:

+1 τ R₂ 0.1 ΚΩ 4.7 με Η Τ 6 V 2.2 ΚΩ αξί FIG. 5.176 -22 V 4,7 ΚΩ 4.7 με H Τα RL ανο 15.6 ΚΩ