Electric Motor Control
10th Edition
ISBN: 9781305177611
Author: Herman
Publisher: Cengage
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Chapter 30, Problem 2SQ
What element is the heart of the solid-state starter?
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Consider a Continuous- time LTI System
described by
y' (+)+ nycH) = x()
find yet for
a) x(+)o ē+4(H)
b) X(+) = u(+).
c) X(H= 5(+)
Find the Thevenin equivalent representation of the circuit given to the left of the nodes a and b. Find Vth and Rth and draw the equivalent Thevenin circuit. For Rth use a 1 volt test source as your method.
R(s) +
E(s)
100(s+2)(s+6)
s(s+3)(s+4)
C(s)
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Electric Motor Control
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- CONTROL SYSTEMS The system shown below has been tested with three different reference inputs 6u(t), 6tu(t), and 6tu(t). By using steady-state error calculation, identify which could give zero (0) steady state error. The function u(t) is the unit step. R(s) + E(s) 100(s+2)(s+6) s(s+3)(s+4) C(s)arrow_forwardEXAMPLE 3.8 Classify the following signals as energy signals or power signals or neither: a) f₁ (t) = e−t for t≥0 and f₁(t)=0 for t<0, b) f₂(t) = cos(t), and c) f³(t) = e¯†.arrow_forwardEXAMPLE 3.9 Classify the following systems as linear or nonlinear systems: a) y(t)=t2x(t) and b) y(t) = tx² (t). Solutionarrow_forward
- EXAMPLE 3.5 Suppose the signal c₁(t) is defined as follows: {−t+1, |||≤1 C₁(t): 0. |t|>1 Determine c₂(t)=c₁ (2t), c3(t)=c₁ (t/2), and c₁(t) = c₁(-2t).arrow_forwardDo problem 3.5darrow_forwardHomework Use graphical approach to find VGSQ, IDQ and use the mathematical approach to find VDS, VS, VG, VD. a. Rs b. Rs = = 100 Ω. 10 ΚΩ. 1 ΜΩ m 20 V 1 3.3 ΚΩ D G + VGS Rs IDss= 10 mA Vp= -4 V ID= IDSS | VGs=Vp/2 4 VDS =V DD-ID(RS+RD) Vs = IDRS V D=V +Vs DSarrow_forward
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