Question

VCC = +16 V ? = 100 Rout Ignore Early Effect Rin RC = 6.8 k? Q1 RS = 0.5 k? Cc1 + vo RL = 6.8 k? Cc2 RB = 10 k? RE = 3 k? VEE = -6 V For the single stage BJT amplifier circuit as shown above, find out the followings (i) Determine the DC operating point (Q-pt) (30 points) (ii) Find out the values of gm, r?, and ro. The symbols have their usual meanings. (10 points) (iii) Derive the expression of small signal voltage gain, Av (= vo/vs). (30 points) (iv) Calculate the value of the voltage gain, Av. (10 points) (v) Derive the expression of input resistance, Rin. (10 points) (vi) Calculate the value of the input resistance, Rin. (10 points) Assume, for the BJT device, ? = 100 and VA = ?, where the symbols have their usual meanings.

          VCC = +16 V
? = 100
Rout
Ignore Early Effect
Rin
RC = 6.8 k?
Q1
RS = 0.5 k?
Cc1
+
vo
RL = 6.8 k?
Cc2
RB = 10 k?
RE = 3 k?
VEE = -6 V

For the single stage BJT amplifier circuit as shown above, find out the followings
(i) Determine the DC operating point (Q-pt) (30 points)
(ii) Find out the values of gm, r?, and ro. The symbols have their usual meanings. (10 points)
(iii) Derive the expression of small signal voltage gain, Av (= vo/vs). (30 points)
(iv) Calculate the value of the voltage gain, Av. (10 points)
(v) Derive the expression of input resistance, Rin. (10 points)
(vi) Calculate the value of the input resistance, Rin. (10 points)

Assume, for the BJT device, ? = 100 and VA = ?, where the symbols have their usual meanings.

VCC = +16 V
? = 100
Rout
Ignore Early Effect
Rin
RC = 6.8 k?
Q1
RS = 0.5 k?
Cc1
+
vo
RL = 6.8 k?
Cc2
RB = 10 k?
RE = 3 k?
VEE = -6 V

For the single stage BJT amplifier circuit as shown above, find out the followings
(i) Determine the DC operating point (Q-pt) (30 points)
(ii) Find out the values of gm, r?, and ro. The symbols have their usual meanings. (10 points)
(iii) Derive the expression of small signal voltage gain, Av (= vo/vs). (30 points)
(iv) Calculate the value of the voltage gain, Av. (10 points)
(v) Derive the expression of input resistance, Rin. (10 points)
(vi) Calculate the value of the input resistance, Rin. (10 points)

Assume, for the BJT device, ? = 100 and VA = ?, where the symbols have their usual meanings.

Added by Victor P.

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