Engineering Electromagnetics
9th Edition
ISBN: 9780078028151
Author: Hayt, William H. (william Hart), Jr, BUCK, John A.
Publisher: Mcgraw-hill Education,
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Chapter 7, Problem 7.43P
Compute the
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Homework:
The open-loop transfer function of DC Motor is shown in equations (1),
where the rotational speed is considered as the output and the armature
voltage as the input, (J) is the moment of inertia of the rotor, (b) is the
viscous friction constant of the motor, (La) is the electrical inductance, (Ra)
is the electrical resistance and (V) is the voltage source, with a setpoint of
2000 rpm
e(s)
K₁
G(s)=(s) = (j.s+b)(La.s+ Ra) + K₁ × Kɩ
rad/sec,
sec
(1)
Parameters
Torque constant (Kt)
Value
Electromotive force constant (Kb)
Electrical resistance (Ra)
Viscous friction constant of the motor (b) 0.008 N.m/rad/s
Electrical inductance (La)
Moment of inertia of the rotor (J)
0.5 N.m/A
1.25 V/rad/s
502
0.2 H
0.1 kg.m²
Table 1: Parameters of the DC motor
Design Speed Control of DC Motor Using PID Controller, and then obtain
Overshoot, Rise time, Steady state error, and Settling time
A. Explain the mode of operation for complementry commutation circuit. Find the circuit turn
off time if the load resistances R1-R2-5 2 capacitance C-7.5 μF, V-100 volts.
ng
tu
I
**3- In the following transistor amplifier circuit, assuming that:**
**3-1- Calculate the operating point of the transistor (values of its continuous currents and voltages).**
**3-2- Draw the equivalent circuit of the amplifier for small signals.**
**3-3- Calculate the input resistance \( R_{in} \).**
Chapter 7 Solutions
Engineering Electromagnetics
Ch. 7 - Find H in rectangular components at P(2,3,4) if...Ch. 7 - Prob. 7.2PCh. 7 - Prob. 7.3PCh. 7 - Prob. 7.4PCh. 7 - The parallel filamentary conductors shown in...Ch. 7 - A disk of radius a lies in the xy plane, with z...Ch. 7 - Prob. 7.7PCh. 7 - For the finite-length current element on the z...Ch. 7 - Prob. 7.9PCh. 7 - Prob. 7.10P
Ch. 7 - A solenoid of radius a and of length. L is...Ch. 7 - Prob. 7.12PCh. 7 - Prob. 7.13PCh. 7 - Prob. 7.14PCh. 7 - Prob. 7.15PCh. 7 - A current filament carrying I in the -az direction...Ch. 7 - Prob. 7.17PCh. 7 - Prob. 7.18PCh. 7 - Prob. 7.19PCh. 7 - A solid conductor of circular cross section with a...Ch. 7 - Prob. 7.21PCh. 7 - Prob. 7.22PCh. 7 - Prob. 7.23PCh. 7 - Prob. 7.24PCh. 7 - Prob. 7.25PCh. 7 - Prob. 7.26PCh. 7 - The magnetic field intensity is given in a certain...Ch. 7 - Given H=(3r2/sin)a+54rcosa A/m in free space: (a)...Ch. 7 - Prob. 7.29PCh. 7 - Prob. 7.30PCh. 7 - Prob. 7.31PCh. 7 - Prob. 7.32PCh. 7 - Use an expansion in rectangular coordinates to...Ch. 7 - A filamentary conductor on the z axis carries a...Ch. 7 - A current sheet K = 20 az A/m, is located at p =...Ch. 7 - Let A= (3y-z)ax+2xzayWb/m in a certain regin of...Ch. 7 - Let/N=1000, I=.08 A, p0=2 cm and a=.08 cm for the...Ch. 7 - A square filamentary differential current loop, dL...Ch. 7 - Prob. 7.39PCh. 7 - Show that the line integral of the vector...Ch. 7 - Prob. 7.41PCh. 7 - Show that 2(1/R12)=1(1/R12)=R21/R312.Ch. 7 - Compute the vector magnetic potential within the...Ch. 7 - Prob. 7.44P
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