Electric Motor Control
10th Edition
ISBN: 9781305177611
Author: Herman
Publisher: Cengage
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Question
Chapter 37, Problem 2SQ
To determine
Choose the correct option that causes the motor to run when the red warning lamp and alarm turn ON.
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Students have asked these similar questions
1. Is1 = 2ls2 = 4 × 10-16 A, B₁ = ẞ2 = 100, and R₁ = 5 kQ. Find the VB such that lx = 1 mA.
(30 points)
R1
ww
Q2
+
VB
Figure 1
2-2) Lathi & Ding prob. 2.6-1
2.6-1 Find the correlation coefficient p between of signal x(t) and each of the four pulses g1(1), 82(1),
83(1), and g4(f) shown in Fig. P2.6-1. To provide maximum margin against the noise along the
transmission path, which pair of pulses would you select for a binary communication?
Figure P.2.6-1
x(f)
(a)
8(1)
(b)
82(1)
(c)
1
1
sin 2πt
sin 4πt
-sin 2
0
0.707
83(1)
0
1
(d)
0
M
P
0.707
84(1)
(e)
0
0.5
-0.707
2. Determine the operation point and the small-signal model of Q₁ for each of the circuits
shown in Fig. 2. Assume Is = 8 × 10-16 A, B = 100 and VA = ∞.
a) 20 points
b) 20 points
0.8 V
RC
50 Ω
+
Vcc = 2.5 V
4A"
Figure 2-a
Rc1kQ
+
Vcc = 2.5 V
Figure 2-b
Chapter 37 Solutions
Electric Motor Control
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- Crystallographic positions Crystallographic position is denoted by three numbers, which are coefficients of the position vector, e.g. ½½½ for the red atom. Here the 'new' atom is at a/2 + b/2 + c/2 Silicon crystal has so-called "diamond type lattice". Each Si atom has 4 nearest neighbors. Diamond lattice starts with a FCC lattice and then adds four additional INTERNAL atoms at locations r = a/4+b/4+c/4 away from each of the atoms. In other words, diamond lattice is formed by two FCC lattices sifted by the vector r.arrow_forwardfind the answers for this prelabarrow_forwardQ2: (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 currentarrow_forward
- 6. Build the circuit shown in Figure 2 below in PSpice. Note that the power supply V1 is a VSIN power supply in the SOURCE library. Vcc is a VDC supply found in the SOURCE library. Model this circuit using the Time Domain (Transient) Analysis Type with a Run To Time of 2 ms. A. Paste your output graph showing the voltage at the base terminal, collector terminal and at the load. B. What is the voltage gain of the circuit? (Compare the voltage amplitude at the base terminal input (across Rb2) to that at the collector terminal. C. What happens to the output voltage at the collector terminal if the value of Rb1 is reduced by a factor of 10 (to 14.7 kn)? Simulate this situation and explain the result. D. What happens to the output voltage at the collector terminal if the value of Rb1 is increased by a factor of 3 (to 441 k)? Simulate this situation and explain the result. Rb1 RC 147k 1k C2 C1 Q1 Vcc 1u VOFF = 0 Q2N3904 10Vdc VAMPL = 0.1V1 1u FREQ = 2k R_load Rb2 Re AC = 0 250 40k 20 Figure…arrow_forwardThe input reactance of 1/2 dipole with radius of 1/30 is given as shown in figure below, Assuming the wire of dipole is conductor 5.6*107 S/m, determine at f=1 GHz the a-Loss resistance, b- Radiation efficiency c-Reflection efficiency when the antenna is connected to T.L shown in the figure. Rr Ro= 50 2 1/4 RL -j100 [In(l/a) - 1.5] tan(ẞl)arrow_forward6) For each independent source in this circuit calculate the amount of power being supplied or the amount of power being absorbed + 6V www +3V- www 20 ми ми 352 0.5A + 3Varrow_forward
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