Electric Motor Control
10th Edition
ISBN: 9781133702818
Author: Herman
Publisher: CENGAGE L
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Chapter 17, Problem 6SQ
To determine
State the most commonly used control voltage in an intrinsically safe system.
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2) Design the circuit shown in Figure 2 to provide bias current of IQ2= 150 uA.
Assume circuit parameters of IREF2 = 250 UA, V+ = 3 V, and V = -3 V. The
transistor parameters are VTP = -0.6 V, λ = 0, K'p= 40 uA/V², W/Lc = 15 and
W/LA = 25.
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A. For the RL-circuit with i(0)=0, Find the current i(t) using LT
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B. Find Invers Laplace Transform for Z(s) =
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1) Taking base current into account, determine the value of I copy in each circuit depicted in Fig
1. Normalize the error to nominal value of Icopy.
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Chapter 17 Solutions
Electric Motor Control
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- 12.2 Evaluate each of the following integrals. (a) G₁: = = √ (31³ +21² + 1) [8(t) +48 (t − 2)] dt -21 (b) G₂ = G2 = 4(e¯2ª +1)[☎(t) −28(t − 2)] dt -2 -20 (c) G3 = 0 3( cos 2π- 1) [8(t) +☎(t − 10)] dt -20arrow_forward3) The differential amplifier in Figure 3 is biased with a three-transistor current source. The transistor parameters are ẞ= 100, VBE (on) = 0.7 V, and VA = ∞. a) Determine I1. Ic2, IC4, VCE2, and VCE4. b) Determine a new value of R1 such that VCE4 = 2.5V. what are the values of Ic4, Ic2, I1, and R₁? +5 V Q1 R₁ = 8.5 ΚΩ IC4 23 RC= • 2 ΚΩ + 24 VCE4 RC= 2 ΚΩ est Ic2 + Q2 VCE2 -5 V Figure 3arrow_forward12.1 Evaluate each of the following integrals: (a) G₁ = √(33-4t²+3)[8(t) +28(t − 2)] dt. (b) G₂ = √442(e³ +1)[8(t) − 28(t − 2)] dt. .16 -31 (c) G3=124t sin(2лt) − 1][§(t − 1) +☎(t − 6)] dt.arrow_forward
- Why is the voltage drop of a self-excited generator greater than the voltagedrop of a separately excited generator?arrow_forwardWhen driving a DC shunt generator with a synchronous prime mover motor, why does the AC amperage to the synchronous motor machine increase as load is added to the generator?arrow_forward100 What is the phase and gain margins of the following system, is it stable or not. Design a PI controller for the following unstable process if any. 50 -120 -130 0 -140 -50 -150 -100 -160 <<-150 -170 -200 -180 10-1 10° 10¹ 102 103 104 105 1071 10° 10¹ 102 103 101 105 Frequency (rad/s) Frequency (rad/s)arrow_forward
- Please assist in the below questionarrow_forwardA. For the RL-circuit with i(0)=0, Find the current i(t) using LT R=2 Ω V(t)=sin3t B. Find Invers Laplace Transform for Z(s) L= 1H 4s2 +2s+3 = s2-3s+2arrow_forwardGiven the circuit diagram in. Find the following voltages: Vda, Vbh, Vgc, Vdi, Vfa, Vac, Vai, Vhf, Vfb, and Vdc.arrow_forward
- L ✓ 30 UF 2mtt The voltage applied across 3-branched circuit of figure 2 is given by v = 100 sin(5000t+ π/4). Calculate the branch currents and total current. v 25ŹR 00arrow_forward10 mA 2 ΚΩ 2 ΚΩ 6 ΚΩ x + ww 4 ΚΩ 4 ΚΩ +1 2 Varrow_forwardFind Vx,V1,V3,V0 according to the case of the circuits using KVLarrow_forward
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