(d) Figure 2.3 shows the circuit diagram of a typical npn BJT common emitter amplifier. The values of RB1-30 kOhm, RB2-10.XY kOhm, Rc-4.XY kOhm, Ic=3.XYmA and Vcc=32 V. If the transistor current gain ß = 50 determine using the full analysis and assuming VBE = 0.7 V the value of RE, hence identify the location of the Q-point (Ic, VCE, Iв and VBE). Now sketch the AC circuit model of this amplifier and determine the value of the ac open circuit voltage gain Av and the ac short circuit current gain A₁. (Assume that Vth = 26 mV).

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XY=54

(d) Figure 2.3 shows the circuit diagram of a typical npn BJT common emitter
amplifier. The values of RB1-30 kOhm, RB2=10.XY kOhm, Rc-4.XY kOhm,
Ic=3.XYmA and Vcc=32 V. If the transistor current gain ß = 50 determine using
the full analysis and assuming VBE = 0.7 V the value of RE, hence identify the
location of the Q-point (Ic, VCE, IB and VBE). Now sketch the AC circuit model
of this amplifier and determine the value of the ac open circuit voltage gain Av
and the ac short circuit current gain A₁. (Assume that Vth = 26 mV).
+ Vcc
RB1
Cin
HH
lin
Vin
RB2
mw
ww 11
Rc
VB
RE
Vc Cout
VE
ww11
HT
Figure 2.3
Vout
C₂
lout
Transcribed Image Text:(d) Figure 2.3 shows the circuit diagram of a typical npn BJT common emitter amplifier. The values of RB1-30 kOhm, RB2=10.XY kOhm, Rc-4.XY kOhm, Ic=3.XYmA and Vcc=32 V. If the transistor current gain ß = 50 determine using the full analysis and assuming VBE = 0.7 V the value of RE, hence identify the location of the Q-point (Ic, VCE, IB and VBE). Now sketch the AC circuit model of this amplifier and determine the value of the ac open circuit voltage gain Av and the ac short circuit current gain A₁. (Assume that Vth = 26 mV). + Vcc RB1 Cin HH lin Vin RB2 mw ww 11 Rc VB RE Vc Cout VE ww11 HT Figure 2.3 Vout C₂ lout
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