Question

Question 3 (1 point) Rsig vse {cB+1)re Bin La SRC SRL Vout The model for a common-emitter small-signal BJT amplifier is shown. Determine the peak-to-peak value of Vout if Vsig = 100 mVpp- Assume B = 100, re = 20 s and ro = 50 k12. Other circuit values are Rsig = 1 ks, RC = 4k22 and RL = 10 k22 Ovout = 8.95 Vpp Ovout = 20.3 Vpp Ovout = 13.4 Vpp Ovout = 6.55 Vpp

Answer 1

To S(BH)re vout = -fib (vollecu RL) vin = b (stilre AVAL - Nout . -Pib (80l/R/IR,) ib(btire voltage Av gain -R(Toll RcIIRL) (Btljare ge division nele at Alp side Vin = using (A+) Ve (Btire | Cán + (+1) (Rtbre -Poollhell Rz) (Bujve Riig +(BH)ve vout = vrig -B (voll Re I/ RL ) Rrig + (PH)ee

vout vag -100 (sok lluk II 10K ) Ik +(100+1) 201 Vout 84v/v vrig where viig = 100 m Up-p vout = 89.49 X100X10S vout = 8.95 Upp