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Home/ece 2620

electricalstudent Latest Questions

venkyelectrical
venkyelectrical
Asked: August 10, 2022In: analog and digital communication systems

Q38: Determine the transfer function H(s)= Vo(s)/Vi(s) for the op amp circuit shown in Figure 13. (Hint Recall that no current flows into the ideal op amp’s inverting and noninverting inputs. This allows a divide and conquer approach for determining the transfer function.)

Q38: Determine the transfer function H(s)= Vo(s)/Vi(s) for the op amp circuit shown in Figure 13. (Hint Recall that no current flows into the ideal op amp’s inverting and noninverting inputs. This allows a divide and conquer approach for determining ...

ece 2620
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venkyelectrical
venkyelectrical
Asked: August 10, 2022In: analog and digital communication systems

Question 36 For Q36,37: Consider the op amp circuit in Figure 13. Q36: If the input voltage is ui=2.00 V, what will the output voltage vo be? Q37: If the input voltage is v 1=-1 V, what will the current io be?

Question 36 For Q36,37: Consider the op amp circuit in Figure 13. Q36: If the input voltage is ui=2.00 V, what will the output voltage vo be? Q37: If the input voltage is v 1=-1 V, what will the current io be?

ece 2620
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venkyelectrical
venkyelectrical
Asked: August 10, 2022In: analog and digital communication systems

Question 33 For Q33-35: Consider the two-port circuit shown in Figure 12. Find the g-parameters for this two port circuit. Recall that the terminal equations for the g-parameters are given by ——- Also, recall that for a reciprocal circuit     g21=-g12 Q33: g11=? Q34: g21=-g12=? Q35: g22=?

Question 33 For Q33-35: Consider the two-port circuit shown in Figure 12. Find the g-parameters for this two port circuit. Recall that the terminal equations for the g-parameters are given by ——- Also, recall that for a reciprocal circuit     g21=-g12 Q33: ...

ece 2620
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venkyelectrical
venkyelectrical
Asked: August 10, 2022In: analog and digital communication systems

Question 31 For Q31,32: Design a series RLC bandpass filter with a center frequency of 4.15 Mrad/s and a bandwidth of 62.8 krad/s. The inductor for the filter is chosen to be 47.0 aH Q31: The value of the capacitor is Q32: The value of the resistor is

Question 31 For Q31,32: Design a series RLC bandpass filter with a center frequency of 4.15 Mrad/s and a bandwidth of 62.8 krad/s. The inductor for the filter is chosen to be 47.0 aH Q31: The value of the capacitor is Q32: The ...

ece 2620
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venkyelectrical
venkyelectrical
Asked: August 10, 2022In: analog and digital communication systems

Question 29. Q29, 30: Design an RC low -pass filter with a cutoff frequency of 3300 Hz using a C=68.0nF capacitor. Q29. What is the value of the resistor in the filter? Q30: If the input to the filter is v(t)=5.0 cos(10t ) V, then the sinusoidal steady-state output uo(t) is given by

Question 29. Q29, 30: Design an RC low -pass filter with a cutoff frequency of 3300 Hz using a C=68.0nF capacitor. Q29. What is the value of the resistor in the filter? Q30: If the input to the filter is v(t)=5.0 cos(10t ) ...

ece 2620
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venkyelectrical
venkyelectrical
Asked: August 10, 2022In: analog and digital communication systems

Question 28 Q28: What type of filter is shown in figure 11? (Hint: Use qualitative analysis to examine behavior at low and high

Question 28 Q28: What type of filter is shown in figure 11? (Hint: Use qualitative analysis to examine behavior at low and high

ece 2620
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venkyelectrical
venkyelectrical
Asked: August 10, 2022In: analog and digital communication systems

Question 25 For Q25-27: Consider the circuit shown in Figure 10. The switch has been in position a for a long time. At time t = 0, the switch instantaneously moves to position b. Q25: The initial condition on the inductor iz (0) is Q26: The Laplace domain voltage Vo(s) is given by Q27: Which qualitative description best fits the behavior of the output voltage vo(t) for t >0? (You do not need to do the full inverse Laplace transform to figure this out.) The output voltage..

Question 25 For Q25-27: Consider the circuit shown in Figure 10. The switch has been in position a for a long time. At time t = 0, the switch instantaneously moves to position b. Q25: The initial condition on the inductor iz ...

ece 2620
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venkyelectrical
venkyelectrical
Asked: August 10, 2022In: analog and digital communication systems

Question 24 Q24: A circuit has transfer function H(o) = The time domain input to the circuit is v1 (t) = 3u(t) V. What is the output vo (t) at steady state, after all transients have died away?

Question 24 Q24: A circuit has transfer function H(o) = The time domain input to the circuit is v1 (t) = 3u(t) V. What is the output vo (t) at steady state, after all transients have died away?

ece 2620
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venkyelectrical
venkyelectrical
Asked: August 10, 2022In: analog and digital communication systems

Q23: What is the expression for the signal f(t) shown in Figure 9?

  Q23: What is the expression for the signal f(t) shown in Figure 9?

ece 2620
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venkyelectrical
venkyelectrical
Asked: August 10, 2022In: analog and digital communication systems

Question 19 For Q1922 Consider a balanced three-phase circuit consisting of a Y-connected source connected to a Y-connected load by transmission lines. The load has impedance 63+j12  ^/¢. The transmission line has impedance 1.2+j0.8  /¢. The source impedance is negligible. The line to-neutral voltage at the source is Van 1200.020  The source has abc phase Q19 The line current I is given by Q20: The line-to-neutral voltage VBN is given by Q21: The line to line voltage at the load Vca is given by Q22: What is the total real power absorbed by the load?

Question 19 For Q1922 Consider a balanced three-phase circuit consisting of a Y-connected source connected to a Y-connected load by transmission lines. The load has impedance 63+j12  ^/¢. The transmission line has impedance 1.2+j0.8  /¢. The source impedance is negligible. The ...

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Recent Comments

  1. venkyelectrical on Bonus Problem (10 points): In this circuit, the op amp is IDEAL. The op amp is NOT operating in the linear region. In this Circuit, V+=V_. The op amp output saturates at +12v. The output is always at saturation, either positive or negative. The output will “toggle” as Vin crosses a “threshold” voltage. Because of the positive feedback, the threshold voltage changes depending on the state of the output voltage. Find the lower and upper values of the threshold voltages to 5 places of precision.
  2. venkyelectrical on Problem #3 Operational Amplifiers (35 pts): The op amp is IDEAL and operating in the linear region. Find the voltage gain (Av) of the circuit. If Vin = -2, find io.
  3. venkyelectrical on Problem #2 Operational Amplifiers (35 pts): Op amp is ideal and operating in the linear region. Find the node voltages in the table.
  4. venkyelectrical on Problem #I Linear Amplifiers (40 pts) (SHOW ALL WORK) In the Problem, all resistor values are in ohms, voltages are volts and currents are amps. Amp “A” is voltage-to-current, Amps “B” and “C” are current-to-voltage. Use /1 = 0.01(V1), v2 = 100(/2) and V3 = 50(/3). Use Vin shown in the table. Find all the values listed in the table. Hint: Observe that R3, R4 and R5 are m parallel.
  5. venkyelectrical on 3. This problem is on the quantization and encoding. Answer to the following: Assume round-off rule for uniform quantization. We have 10 samples from the analog signal and their quantization error qε are found to be distributed as, qε =[0.33, 0.36, -0.38, 0.22, -0.4, 0.07, 0.4, -0.18, -0.25, 0.38] (a) Decide the suitable value of quantization step size ∆. Give reasoning for your answer (3) (b) We assume that qε are uniformly distributed with its probability density function f ∆ (∆) =1 /∆ for the interval [-∆/2, +∆/2]. Calculate the quantization noise power Pqε for the value of ∆ you found in part (a). (3) (c) Per the quantization noise power you calculated in part (b), calculate the signal power S [Watt] if output Signal to Q-zation noise power ratio SNRo = 30 dB. (3) (d) If we encode the quantizer output with binary code with length ‘n’(integer), decide the minimum code length ‘n’ based on the condition given in part (c) (1)

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