Problem:
1. An emitter follower with a BJT biased at IC = 2 mA and having β = 100 is connected between a source with Rsig = 10 kΩ and a load RL = 0.5 kΩ.
(a) Find Rin , vb/vsig, and vo/vsig.
(b) If the signal amplitude across the base-emitter junction is to be limited to 10 mV, what is the corresponding amplitude of vsig and vo?
(c) Find the open-circuit voltage gain Gv o and the output resistance Rout . Use these values first to verify the value of Gv obtained in (a), then to find the value of Gv obtained with RL reduced to 250Ω