Chapter 8, Problem 8.35P

A BJT emitter follower is coupled to a load with an ideal transformer, as shown in Figure P8.35. The bias circuit is not shown. The transistor current gain is $\beta =49$ , and the transistor is biased such that $I_{CQ}=100\text{mA}$ . (a) Derive the expressions for the voltage transfer functions ${\upsilon }_e/{\upsilon }_i$ and ${\upsilon }_o/{\upsilon }_i$ .(b) Find $n_1:n_2$ for maximum ac power transfer to $R_L$. (c) Determine the small−signal output resistance looking back into the emitter.

Figure P8.35