Rs G= Cs HH R₁ Vcc Cc Rc HH RL R₂ RE CE Vs Figure 6: a BJT amplifier. Q3. Figure 6 shows a BJT amplifier. The current gain of the transistor is ẞ = 60 and junction resistances are r₂ = 46 and r = co. The values of the resistors and capacitors in the circuit are R₁ = 100 kn, R₂ = 25 kn, Rc = 3 kn, R₂ = 3 kn, Rs = 35, R₁ = 4.8 kn, Cs = 0.47 uF, Cc = 1.0 μF, C₂ = 6.8 μF, Vcc = 12V and Am = -40. a) Explain briefly the function of the capacitor, Cs. b) Determine the lower cut-off frequency of the amplifier. Based on the results obtained in b), sketch the corresponding part of the Bode plot of the amplifier (magnitude only).
Rs G= Cs HH R₁ Vcc Cc Rc HH RL R₂ RE CE Vs Figure 6: a BJT amplifier. Q3. Figure 6 shows a BJT amplifier. The current gain of the transistor is ẞ = 60 and junction resistances are r₂ = 46 and r = co. The values of the resistors and capacitors in the circuit are R₁ = 100 kn, R₂ = 25 kn, Rc = 3 kn, R₂ = 3 kn, Rs = 35, R₁ = 4.8 kn, Cs = 0.47 uF, Cc = 1.0 μF, C₂ = 6.8 μF, Vcc = 12V and Am = -40. a) Explain briefly the function of the capacitor, Cs. b) Determine the lower cut-off frequency of the amplifier. Based on the results obtained in b), sketch the corresponding part of the Bode plot of the amplifier (magnitude only).
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Transcribed Image Text:Rs
G=
Cs
HH
R₁
Vcc
Cc
Rc
HH
RL
R₂
RE
CE
Vs
Figure 6: a BJT amplifier.
Transcribed Image Text:Q3. Figure 6 shows a BJT amplifier. The current gain of the transistor is ẞ = 60 and
junction resistances are r₂ = 46 and r = co. The values of the resistors and
capacitors in the circuit are R₁ = 100 kn, R₂ = 25 kn, Rc = 3 kn, R₂ = 3 kn, Rs =
35, R₁ = 4.8 kn, Cs = 0.47 uF, Cc = 1.0 μF, C₂ = 6.8 μF, Vcc = 12V and Am =
-40.
a) Explain briefly the function of the capacitor, Cs.
b) Determine the lower cut-off frequency of the amplifier.
Based on the results obtained in b), sketch the corresponding part of the
Bode plot of the amplifier (magnitude only).
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