A bipolar junction transistor (BJT) network is shown in FIGURE Q1. Vcc 12 V 2.2 k2 220 ka 10 µF Z. 10 uF B = 60 ro = 15 k2 %3D Z FIGURE Q1 a. What will be the impact on input impedance, Z, and output voltage, v, if: i. Vec is doubled? ii. load resistor, R1. = 2kQ is added? Compare your answers with original network in FIGURE Q1. b. Sketch the equivalent r. network model for part a(ii) with all parameter values. C. Determine and calculate low cut-off frequency for FIGURE Q1 given R, = 1 kQ and R, = 2 kQ.

Introductory Circuit Analysis (13th Edition)
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ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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A bipolar junction transistor (BJT) network is shown in FIGURE Q1.
Vcc = 12 V
2.2 k2
220 k2
10 µF
HE
Vo
Zo
Vi
B = 60
ro = 15 kQ
10 µF
Zi
FIGURE Q1
What will be the impact on input impedance, Z, and output voltage, vo if:
а.
i.
Vcc is doubled?
ii.
load resistor, R. = 2kQ is added?
Compare your answers with original network in FIGURE Q1.
b.
Sketch the equivalent re network model for part a(ii) with all parameter
values.
Determine and calculate low cut-off frequency for FIGURE Q1 given
R, = 1 kQ and RL = 2 kQ.
C.
Transcribed Image Text:A bipolar junction transistor (BJT) network is shown in FIGURE Q1. Vcc = 12 V 2.2 k2 220 k2 10 µF HE Vo Zo Vi B = 60 ro = 15 kQ 10 µF Zi FIGURE Q1 What will be the impact on input impedance, Z, and output voltage, vo if: а. i. Vcc is doubled? ii. load resistor, R. = 2kQ is added? Compare your answers with original network in FIGURE Q1. b. Sketch the equivalent re network model for part a(ii) with all parameter values. Determine and calculate low cut-off frequency for FIGURE Q1 given R, = 1 kQ and RL = 2 kQ. C.
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