The BJTs in the circuit of Fig. P12.38 have P =10, N =100, VBE = 0.7 V, and VA = 100 V

Chapter 12, Problem 12.38

(choose chapter or problem)

The BJTs in the circuit of Fig. P12.38 have P =10, N =100, VBE = 0.7 V, and VA = 100 V. (a) Find the dc collector current of each transistor and the value of VC. (b) Replacing each BJT with its hybrid- model, show that vo vi gm1 ro1 N (ro2 Rf) (c) Find the values of vo/vi and Rin. Figure P12.38

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