9. a. Draw the load line for the network of Fig. 4.122 on the characteristics of Fig. 4.121 using Bfrom problem 8 to find IBQ. b. Find the Q -point and resulting values ICQ and VCEQ. c. Find the value of B at the Q -point. d. How does the value of part (c) compare with b = 125 in problem 8? e. Why are the results for problem 9 different from those of problem 8? 8. For the emitter-stabilized bias circuit of Fig. 4.122, determine:a.b. IcơC.d. Vc.e. Vg.f. Vg-C BIASING-BJTS20 V470 2270 kQ+B=125C9oVE2.2 k2FIG. 4.122Problems 8, 9, 12, 14, 66, 69, 72, and 76.9. a. Draw the load line for the network of Fig. 4.122 on the characteristics of Fig. 4.121 using Bfrom problem 8 to find Iggb. Find the Q-point and resulting values Ico and VCE,-c. Find the value of B at the Q-point.d. How does the value of part (c) compare with B = 125 in problem 8?e. Why are the results for problem 9 different from those of problem 8?On J63 I(mA)C11010809.70 µA60 µA50 uVeE (V)1015202530FIG. 4.121Problems 5, 6, 9, 13, 24, 44, and 57.世

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Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

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9. a. Draw the load line for the network of Fig. 4.122 on the characteristics of Fig. 4.121 using B
from problem 8 to find IBQ.
b. Find the Q -point and resulting values ICQ and VCEQ.
c. Find the value of B at the Q -point.
d. How does the value of part (c) compare with b = 125 in problem 8?
e. Why are the results for problem 9 different from those of problem 8?

8. For the emitter-stabilized bias circuit of Fig. 4.122, determine:
a.
b. Icơ
C.
d. Vc.
e. Vg.
f. Vg-
C BIASING-BJTS
20 V
470 2
270 kQ
+
B=125
C9
oVE
2.2 k2
FIG. 4.122
Problems 8, 9, 12, 14, 66, 69, 72, and 76.
9. a. Draw the load line for the network of Fig. 4.122 on the characteristics of Fig. 4.121 using B
from problem 8 to find Igg
b. Find the Q-point and resulting values Ico and VCE,-
c. Find the value of B at the Q-point.
d. How does the value of part (c) compare with B = 125 in problem 8?
e. Why are the results for problem 9 different from those of problem 8?
On J63

I(mA)
C110
10
80
9.
70 µA
60 µA
50 u
VeE (V)
10
15
20
25
30
FIG. 4.121
Problems 5, 6, 9, 13, 24, 44, and 57.
世

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