Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN: 9780133923605
Author: Robert L. Boylestad
Publisher: PEARSON
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Textbook Question
Chapter 21, Problem 17P
The network shown in Fig. 21.58 is to resonate at
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4. Consider the circuit. Use the symbol ||
to indicate the parallel of resistors in the
following questions.
(a) Express the input resistance Rin in terms of
the terminal resistance and other necessary
resistor values. (In other words, RiB, Ric, and
RIE are given.)
C₁
R₁
R₂
+Vcc
Rc
C3
R3
C2
ی
RE
-VEE
(b) Express the output resistance Rout in terms of the terminal resistance and other necessary
resistor values. (In other words, RiB, Ric and RiE are given.)
(c) Express the voltage gain A₁ = ∞ in terms of terminal voltage gain Avt, the terminal
Vi
resistance, and other necessary resistor values. (Avt, RiB, Ric and R₁E are given.)
+51
2. ẞ 100, VBE(on)= 0.7 V, and VCE(sat) = 0.2 V for the BJT. We want
to find the Q-point through the following steps. Show your work.
a) Find the bias voltage VTH Using Thevenin's equivalent circuit.
R1|| R2
www
+5 V
R₁ = 20 k
IB
VTH
Answer: VTH =
V
b) Find the base current voltage IB.
www.
Answer: IB =
μA (note the unit.)
c) Find the collector voltage Vc (with reference to the ground).
RC= 2.3 k
B
E
R₂ = 30 k
-5 V
www
R₁ =
5 ΚΩ
ww
AHI›
RE=
5 ΚΩ
3. Consider the circuit, in which R₁ = 10 KQ2, R2 =
5 KQ, R3 = 1 KQ, and RE = 8 KQ. The supply
voltages are +Vcc = 10 V and -VEE = -5 V. Other
parameters are ẞF = 100, VBE(On) = 0.7 V, and
VCE(Sat) 0.2 V. Rc value will be specified later.
(a) (3 points) Draw the dc equivalent circuit of the
circuit.
VI
+Vcc
Rc
R2
RI
R₁
RE
-VEE
υο
R3
(b) Find the Thevenin equivalent voltage source VEQ and input resistance REQ of the DC
equivalent circuit. Show your work.
+Vcc
Rc
UC
VEQ
www
REQ
VE
VEQ =
REQ =
ΚΩ
RE
VEE
Chapter 21 Solutions
Introductory Circuit Analysis (13th Edition)
Ch. 21 - Find the resonant s and fs for the series circuit...Ch. 21 - For the senes circuit in Fig. 21.51 : a. Find the...Ch. 21 - For the senes circuit in Fig. 21.52 : a. Find the...Ch. 21 - For the circuit in Fig. 21.53: a. Find the value...Ch. 21 - a. Find the bandwidth of a series resonant circuit...Ch. 21 - A series circuit has a resonant frequency of 10...Ch. 21 - a. The bandwidth of a series resonant circuit is...Ch. 21 - The cutoff frequencies of a series resonant...Ch. 21 - a. Design a series resonant circuit with an input...Ch. 21 - Design a series resonant circuit to have a...
Ch. 21 - A series resonant circuit is to resonate at s=2106...Ch. 21 - Prob. 12PCh. 21 - For the ideal parallel resonant circuit in Fig. 21...Ch. 21 - For the parallel resonant network in Fig. 21.55:...Ch. 21 - The network of Fig. 21.56 has a supply with an...Ch. 21 - For the network in Fig. 21.57: a. Find the value...Ch. 21 - The network shown in Fig. 21.58 is to resonate at...Ch. 21 - For the network in Fig. 21.59: a. Find the...Ch. 21 - Prob. 19PCh. 21 - It is desired that the impedance ZT of the high Q...Ch. 21 - For the network in Fig. 21.62: a. Find fp. b....Ch. 21 - For the network in Fig. 21.63: a. Find the value...Ch. 21 - Prob. 23PCh. 21 - For the network in Fig. 21.65: a. Find fs. fp, and...Ch. 21 - For the network in Fig. 21.66, the following are...Ch. 21 - Prob. 26PCh. 21 - For the parallel resonant circuit in Fig. 21.68:...Ch. 21 - Verify the results in Example 21.8, That is, show...Ch. 21 - Find fp and fm for the parallel resonant network...
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- The solution is with a pen and paper. Really not smartarrow_forward1. Consider the following mechanical system. Obtain the differential equation model for the system. Write the transfer function of the system also. Note here, input u(t) is force and output x(t) is the displacement of the mass. x (Output) k1 k2 www u(t) m (Input force) No frictionarrow_forwardNO AI PLEASEarrow_forward
- 2. Consider the following mechanical system with two masses. Find the differential equation model for the system. Find the transfer functions X1(s) and U(s) Note, in the figure, x₁ and x2 are displacements and u is the force. X2(s) U(s) also. k₁ www + b₁ " x1 k2 kz www mi www m2 Đ b₂arrow_forward4. Find the transfer function H(s) = = Vo(s) V₁(s) for the following circuit. Vi R₁ ww A R₂ ww Voarrow_forwardAnswer the following questions. Take help from ChatGPT to answer these questions (if you need). But write the answers briefly using your own words with no more than two sentences and make sure you check whether ChatGPT is giving you the appropriate answers in our context. A) Write Newton’s second law of motion. B) What is a dashpot? C) What is Hooke’s law? Why there is a negative sign? D) Write the voltage and current equation for an Ideal Op-amp.arrow_forward
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