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(a) Figure 1 shows two bias circuits using bi-polar junction transistor (BJT). Assuming the value and are A kn, B kn and C kn respectively. i. Perform dc analysis on both circuits to obtain and for two different values of Beta which are = 70 and = 140. Assume = 15V and (kQ) is the sum of the last three digit your matric number (i.e., matric number 0123456789, value is 7 + 8 +9 = 24 kN). ( Co1, PO2, WK3, WP1) ' ii. Based on the analysis above, shows that the bias circuit in Figure 1(b) is more stable compared to the one in Figure 1(a). (C4, CO1, PO2, WK4, WP1, WP2) I (b) Illustrate the ac equivalent network for the circuit in Figure 1(b) by substituting the equivale circuit into the network. (C6, CO1, PO2, WK3, WP1) (c) Determine the following parameters,,, and using the equivalent circuit in part (b). Assume (C4, CO1, PO2, WK3, WP1) (d) If in the case of D kN, compute the difference in percentage (%) of values obtain for each of parameters in (c)ICA C01 PO2 WK3 WD1)

(a) Figure 1 shows two bias circuits using bi-polar junction transistor (BJT). Assuming the value and are A kn, B kn and C kn respectively. i. Perform dc analysis on both circuits to obtain and for two different values of Beta which are = 70 and = 140. Assume = 15V and (kQ) is the sum of the last three digit your matric number (i.e., matric number 0123456789, value is 7 + 8 +9 = 24 kN). ( Co1, PO2, WK3, WP1) ' ii. Based on the analysis above, shows that the bias circuit in Figure 1(b) is more stable compared to the one in Figure 1(a). (C4, CO1, PO2, WK4, WP1, WP2) I (b) Illustrate the ac equivalent network for the circuit in Figure 1(b) by substituting the equivale circuit into the network. (C6, CO1, PO2, WK3, WP1) (c) Determine the following parameters,,, and using the equivalent circuit in part (b). Assume (C4, CO1, PO2, WK3, WP1) (d) If in the case of D kN, compute the difference in percentage (%) of values obtain for each of parameters in (c)ICA C01 PO2 WK3 WD1)

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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Question 1 Vcc RC Vcc R1 Vo В RC V; Zo t. RB Vo E I C2 R2 Rɛ CE Zo (b) (a) (a) Figure 1 shows two bias circuits using bi-polar junction transistor (BJT). Assuming the value of , and are A kn, B kN and C kn respectively. i. Perform dc analysis on both circuits to obtain and for two different values of Beta which are = 70 and = 140. Assume = 15V and (kQ) is the sum of the last three digits of your matric number (i.e., matric number = 0123456789, value is 7 + 8 + 9 = 24 kN). (C4, Co1, PO2, WK3, WP1)' ii. Based on the analysis above, shows that the bias circuit in Figure 1(b) is more stable compared to the one in Figure 1(a). (C4, CO1, PO2, WK4, WP1, WP2) I (b) Illustrate the ac equivalent network for the circuit in Figure 1(b) by substituting the equivalent circuit into the network. (C6, C01, PO2, WK3, WP1) (c) Determine the following parameters,,, and using the equivalent circuit in part (b). Assume. (C4, CO1, PO2, WK3, WP1) " (d) If in the case of D kN, compute the difference in percentage (%) of values obtain for each of the parameters in (c). (C4, CO1, PO2, WK3, WP1)
Transcribed Image Text:Question 1 Vcc RC Vcc R1 Vo В RC V; Zo t. RB Vo E I C2 R2 Rɛ CE Zo (b) (a) (a) Figure 1 shows two bias circuits using bi-polar junction transistor (BJT). Assuming the value of , and are A kn, B kN and C kn respectively. i. Perform dc analysis on both circuits to obtain and for two different values of Beta which are = 70 and = 140. Assume = 15V and (kQ) is the sum of the last three digits of your matric number (i.e., matric number = 0123456789, value is 7 + 8 + 9 = 24 kN). (C4, Co1, PO2, WK3, WP1)' ii. Based on the analysis above, shows that the bias circuit in Figure 1(b) is more stable compared to the one in Figure 1(a). (C4, CO1, PO2, WK4, WP1, WP2) I (b) Illustrate the ac equivalent network for the circuit in Figure 1(b) by substituting the equivalent circuit into the network. (C6, C01, PO2, WK3, WP1) (c) Determine the following parameters,,, and using the equivalent circuit in part (b). Assume. (C4, CO1, PO2, WK3, WP1) " (d) If in the case of D kN, compute the difference in percentage (%) of values obtain for each of the parameters in (c). (C4, CO1, PO2, WK3, WP1)
In a FET Ham Radio receiver audio amplifier, there are three types of circuit combination has been used which are Common Source, Common Base and Common Drain. You decide to develop a Common Source FET configuration circuit as shown in Figure 1 to replace a broken circuit in your radio receiver. The specific parameters are given as VTN = 4 V, K = 1 mA/V²,A = 0, VDp = 5 V, R,= 20 k2, R, = 10 k2, Rs = 0.5 kN and Rp = 2 k2, C1 = C2 = CS = 2.2 uF and ra can be neglect. +VDD Rp C2 R1 HE D C1 G Zo R2 Zi Rs Figure 1 or Ipo, VGso, transistor's (a) Record all your calculation and steps to obtain values transconductance gm, input impedance Zi and Output impedance Z,. (b) Derive the equations to calculate the voltage gain with source effect, A, if given a source resistor, R, = 100 2 is connected to the circuit (in series with C,). (c) Given in the data sheet: C, = 10 pF, Cd = 4 pF, Cas = 1 pF, Cwi = 2 pF and Cw. = 3 pF. Assume the amplifier is operating at high frequency, you must calculate the high frequency response of the circuit, fi and fuo. As an engineer, please comment your findings in the report and sketch the low pass filter bode plot graph.
Transcribed Image Text:In a FET Ham Radio receiver audio amplifier, there are three types of circuit combination has been used which are Common Source, Common Base and Common Drain. You decide to develop a Common Source FET configuration circuit as shown in Figure 1 to replace a broken circuit in your radio receiver. The specific parameters are given as VTN = 4 V, K = 1 mA/V²,A = 0, VDp = 5 V, R,= 20 k2, R, = 10 k2, Rs = 0.5 kN and Rp = 2 k2, C1 = C2 = CS = 2.2 uF and ra can be neglect. +VDD Rp C2 R1 HE D C1 G Zo R2 Zi Rs Figure 1 or Ipo, VGso, transistor's (a) Record all your calculation and steps to obtain values transconductance gm, input impedance Zi and Output impedance Z,. (b) Derive the equations to calculate the voltage gain with source effect, A, if given a source resistor, R, = 100 2 is connected to the circuit (in series with C,). (c) Given in the data sheet: C, = 10 pF, Cd = 4 pF, Cas = 1 pF, Cwi = 2 pF and Cw. = 3 pF. Assume the amplifier is operating at high frequency, you must calculate the high frequency response of the circuit, fi and fuo. As an engineer, please comment your findings in the report and sketch the low pass filter bode plot graph.
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