For the emitter-follower (common- collector) amplifier circuit shown in Fig. 1. determine: (@) Voltage gain, A, = V.V, (b) Current gain. A~ L1, (©) Input impedance, Z, and (d) Output impedance, Z.. Assume that: B = =100, 7e=30Q, and hi = fr. = 3KQ. Hint: Solve the homework and draw the ac equivalent circuit by using 1. or h model.
Extracted text: For the emitter-follower (common- collector) amplifier circuit shown in Fig. 1, determine: (a) Voltage gain, A, VV. (b) Current gain, A, = LI. (c) Input impedance, Z, and (d) Output impedance, Zo. R120A2 Assume that: R30kN B= hy = 100, r= 30 2, and he =B.r. 3 k2. Hint: Solve the homework and draw Fig. 1 the ac equivalent circuit by using r, or h model.