Electrical Motor Controls for Integrated Systems
5th Edition
ISBN: 9780826912268
Author: Gary Rockis;Glen A. Mazur
Publisher: American Technical Publishers
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Chapter 21.2, Problem 1CP
To determine
To explain: The occurrence of change in resistance of a photoconductive cell as light on it increases.
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For the circuit shown, I-20 mA, R₁ =10000 2, R2 =2000 Q, R3 -2000 Q, R₁-6000 2, Vcc 5 V and the
OPAMP is ideal with regions of operation are considered.
The output current lo in mA is (choose the closet value):
R₂
Is
R₁
W
VCC
-VCC
The relative tolerance for this problem is 1 %.
-0.458
-0.833
6.667
-6.667
○ 0.458
0.833
w
R3
w
RL
For the circuit shown, let R₁-4, R2-50, R3-2, R4-77 and Vin-18.
Find the current I₁ and voltage Vo as follows:
Use op-amp building blocks to determine the voltage Vo1: V01 =
Then use Vo1 to find the current 11: 1₁ =
Find the voltage Vo: Vo=
R1
www
Vin
R₂
ww
V01 R3
The relative tolerance for this problem is 9 %.
+
R4
www
+5°
For the circuit shown, let Vs1 = 13, Vs2 = 7 R1-10, R2= 50, assume ideal-op-amp, and find
• The current Is
• The output voltage Vo=
VSI
A
S
R₁
ww
1 R₂
www
V₁₂
+
V
Chapter 21 Solutions
Electrical Motor Controls for Integrated Systems
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- For the circuit shown, let R₁ =16 Q, R₂ =48 2, R3 = 28 2, R4 =84 02, R5 -2002, R6 -80 2, and V₁ =4 mV. Assume ideal op-amp, find (round your answer to three digits) : Va= (MV) Vb = (MV) (mA) Vout = (MV) R₁ R₂ V₁ + R3 Vb W The relative tolerance for this problem is 7 %. ww R4 24 R5 55 R6 VOUTarrow_forwardFor the circuit shown, find the voltage Vo and current l。. Let R₁=8, R2=1, R3-11 and V₂-3. V S (+1 || w R₂ R1 + R3 Vo The voltage Vo is: The current lo is: The relative tolerance for this problem is 3 %.arrow_forwardFor the circuit shown, find currents 11, 12, 13, and the voltage Vo. Assume ideal op-amp, and let R₁=3, R2-40, Ro=85 and 1-6 The current I₁ is: The current 12 is: The current 13 is: The voltage Vo is: R₂ w R₁ 13 w Roarrow_forward
- For the circuit shown, let v₂ = 9, R₁=86, R2= 15, R3 =7, assume ideal-op-amp, and find • The current l₂ = • Voltage gain, Av= Vo/Vs= • The output voltage vo = A US 1+ 1. R₁ R₂ R3 10 +arrow_forwardFor the op-amp circuit shown, find the voltage Vo, and the current lo. Let R₁=8, R2=58, R3-27 and V₂-101. R1 + R₂ ww + V + The voltage Vo The current lo = = The relative tolerance for this problem is 3 % R3arrow_forwardThe circuit shown in Fig. 14.98 has the impedance Z(s) = 1,000(s+1) (s+1+j50)(s+1 – j50) ' s=j@ Find: (a) the values of R, L, C, and G (b) the element values that will raise the resonant frequency by a factor of 103 by frequency scaling Z(s) Figure 14.98 For Prob. 14.81. R 7arrow_forward
- Chapter 14, Problem 57. Determine the center frequency and bandwidth of the bandpass filters in Fig. 14.88. 1 F ΙΩ ww V. (+ 1 F 10 V 1 H m (a) (b) ΙΩ ww ΙΩ 1HV Figure 14.88 For Prob. 14.57.arrow_forwardChapter 14, Problem 43. Calculate the resonant frequency of each of the circuits in Fig. 14.82. C (a) Figure 14.82 For Prob. 14.43. (b) C Larrow_forwardChapter 14, Problem 69. end Design the filter in Fig. 14.94 to meet the following requirements: (a) It must attenuate a signal at 2 kHz by 3 dB compared with its value at 10 MHz. (b) It must provide a steady-state output of v。 (t) input v, (t)=4sin(2 × 108t) V. = 10 sin(2x 108t+ 180°) V for an Rf ww R ww C 1+ Vs Figure 14.94 For Prob. 14.69.arrow_forward
- Chapter 14, Problem 15. Construct the Bode magnitude and phase plots for 40(s+1) H(s) (s + 2)(s+10) s=j@arrow_forwardA series RLC network has R = 2 kQ, L = 40 mH, and C = 1 μ F. Calculate the impedance at resonance and at one-fourth, one-half, twice, and four times the resonant frequency.arrow_forwardChapter 14, Problem 5. For each of the circuits shown in Fig. 14.72, find H(s) = V。 (s)/V¸(s). R www V. R L Vo Vs m R (a) www (b) Figure 14.72 For Prob. 14.5. + CV₂arrow_forward
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