For the network of Problem 1:a. Determine re.b. Find hfe and hie.c. Find Zi and Zo using t...

For the network of Problem 1:

a. Determine re.

b. Find hfe and hie.

c. Find Zi and Zo using the hybrid parameters.

d. Calculate Av and Ai using the hybrid parameters.

e. Determine Zi and Zo if hoe = 50 µS.

f. Determine Av and Ai if hoe = 50 µS.

g. Compare the solutions above with those of Problem 1. (Note: The solutions are available in Appendix E if Problem 2 was not performed.)

Problem 1

The input impedance to a common-emitter transistor amplifier is 1.2 kΩ with β = 140, ro = 50 kΩ, and RL = 2.7 kΩ. Determine:

a. re.

b. Ib if Vi = 30 mV.

c. Ic.

d. Ai = Io/Ii = IL/Ib.

e. Av = Vo/Vi.

Problem 2

For the network of Fig.:

a. Determine Zi and Zo.

b. Find Av.

c. Repeat parts (a) and (b) with ro = 20 kΩ.

FIG.