For the source-follower network of Fig. 8.91:a. Determine AvNL, Zi, and Zo.b. Sketch the t...

For the source-follower network of Fig. 8.91:

a. Determine A_vNL, Z_i, and Z_o.

b. Sketch the two-port model of Fig. 5.75 with the parameters determined in part (a) in place.

c. Determine A_vL and A_vs.

d. Change R_L to 4.7 kΩ and calculate A_vL and A_vs. What was the effect of increasing levels of R L on both voltage gains?

e. Change R_sig to 20 kΩ (with R_L at 2.2 kΩ) and calculate A_vL and A_vs. What was the effect of increasing levels of R_sig on both voltage gains?

f. Change R_L to 4.7 kΩ and R_sig to 20 kΩ and calculate Z_i and Z_o. What was the effect on both impedance parameters?

FIG. 8.91

FIG. 5.75 Emitter-follower configuration with a Darlington amplifier.