Electric Motor Control
10th Edition
ISBN: 9781133702818
Author: Herman
Publisher: CENGAGE L
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Textbook Question
Chapter 25, Problem 3SQ
Name the simplest, most rugged, and most reliable type of AC motor. Describe how it operates.
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find the answers for this prelab
Q2:
(30 Marks)
Design a DC/DC converter that produce output waveforms that shown in figures below from a
fixed DC source of 20 volts.
Vo (Volt)
14.1
IL (Amp)
13.9
2.25
1.75
† (msec)
Output voltage
0.18
0.2
t (msec)
L
0.214 0.22
Output current
Chapter 25 Solutions
Electric Motor Control
Ch. 25 - Prob. 1SQCh. 25 - When can full-voltage starting be used?Ch. 25 - Name the simplest, most rugged, and most reliable...Ch. 25 - Define the term slip.Ch. 25 - When the voltage is reduced to start a motor, what...Ch. 25 - Why is it more advisable to start some machines at...Ch. 25 - Prob. 7SQCh. 25 - Prob. 8SQCh. 25 - Prob. 9SQCh. 25 - Prob. 10SQ
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- 5) If the current source supplies 448 watts, then what 15 the value of resistance R? ми R ↑ YA 62 ww 120 } ww 6_02 { wwarrow_forwardWhat is the equivalent resistance of this circuit between terminals A and B ? m 1852 A 7_A 122 도 www 50 ти B ww 36 Ω 201 www www 30√arrow_forward3) A circuit is given as shown. (a) Find and label the circuit nodes. (6) Determine V2, V2, I₂, I₂ and Is © For each circuit element determine how much power it Supplies 15 absorbs. m 20 + 20 www 13 + 20 Z9V H 56 +1 LOV 1/2 1 4A + 3_22 3.2 ми + V₂ I 1arrow_forward
- In this experiment, we are going to use a 2N3904 BJT. Examine the data sheet for this device carefully. In particular, make a note of the current gain (identified by hFE). 1. Obtain the curve trace for a "Darlington Pair" of Bipolar Junction Transistors. A Darlington Pair consists of two transistors with the first BJT driving the base terminal of the second transistor as shown in Figure 1 below. A. Set up the primary sweep voltages for V1 the same as shown in the lecture notes (see the Darlington pair IV curve). B. Set up the secondary sweep currents for 11 to be an order of magnitude smaller than for the single BJT. In the Sweep Type box choose linear and enter the following 3 values: Start Value: 0, End Value: 8u and Increment: 1u (see lecture notes). C. Describe the primary differences you observe between the single BJT Curve Trace and that of the Darlington Pair. Discuss what might cause each difference. Q1 11 Q2 V1 Q2N3904 Figure 1. A Darlington Pair of 2N3904 transistors in a…arrow_forward2. Using the IV plots shown in Fig. 3 (and found in the reintroduction to PSpice) design a BJT biasing circuit that results in the following parameters: VCE = 2 Vand ig = 40 μA. We also require the power supply to be fixed at 5 Volts (this is where the load line intercepts the iB =ic = 0 line). You may use the circuit shown in Example 1. Note that all resistor values in Example 1 must be recalculated. Your solution for the base to ground and base to collector resistors may not be unique.arrow_forwardA circuit is given as shown. (a) Find and label the circuit nodes. (6) Determine I, I₁, I2 and V₂ I₂ +1 I 12V ww 22 2 ти + 보통 162 - ти 4 52 12 50 602 I 1 Mwarrow_forward
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