2. Design a two-stage amplifier that produces the following output:V₁ = 3√₁ + 2V2 + 4V3a. Draw the block diagram for this systemb. Implement the block diagram for this circuit using op-amps. Ensure that allresistors drawn have values.c. If V₁=1 V, V2=2 V, V3 = 2 V, what should be the minimum Vcc of bothamplifiers so that neither stage is saturated?

Answered: 2. Design a two-stage amplifier that…

Electrical Transformers and Rotating Machines

4th Edition

ISBN:9781305494817

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter3: Inductance In Alternating-current Circuits

Section: Chapter Questions

Problem 6RQ

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A liquid-level process control system is shown in Figure 5a and its closed loop representation is shown in Figure 5b. The system parameters are: A = 2 m², Rf = 15 s/m², H₁= 1 V/m, K₁ = 1 m³/sV, K₁ = 1. What are the values of Ti and when the undamped natural frequency WT = 0.01 rad/s? Answer should be supported with appropriate calculation steps. hul!) Pl hon Controller Control Valve K₁ Pressure transducer H₁ Figure 5a. Tank Area A Outlet valve Resistance R/\10 PI Controller Tank and valve Control valve H₁(s) Ha(s) E(s) U(s) V₁(8) K₁ K₁ R₁ 1+ARS Hm(s) Pressure tranducer H₁ Figure 5b. Ꮵ.
Determine to what value the gain K should be changed to make this closed-loop system stable if, for K=10, the gain margin of the system is negative and equal to -18dB.
QUESTION 3 BAND PASS FILTER Find the transfer function, Vo(s)/Vi(s), for the op-amp system shown in the figure. C R R C Vo Vi V₁(s) V₁(s) ○ V (s) 0 V₁(s) ○ V (s) A V₁(s) WH RCs RCS +1 1 (RCs+1) 2 RCS+1 RCs V₁(s) RCs V₁(s) (RCs+1)²
2. Figure 1 shows a sensor consists of a core, an armature and a variable air gap. The core with 3.0 cm depth and 10000 relative permeability has 200 coil turns. On the other hand, the armature is a steel plate of thickness 0.2 cm and has similar relative permeability with the core. Assuming the relative permeability of air is unity and the permeability of free space is equal to 4x x 10-7 H.m, calculate the inductance of the sensor for air gaps of 0 mm and 2 mm. Please write the answers in 3 decimal places. 2.0 cm 1.0 cm 6.0 cm 3.0 cm 1.5 cm Figure I
For a system with block diagram shown in Figure 3 where S ?1(s) = S+ 10 1 ? 2($)= 3s+2 ?(s) = 2(s +90) (a) Obtain the expression of close-loop transfer function and write it in standard form, identify time constant(s) and gain constant of the system; (b) Obtain the expression of open-loop transfer function; (c) Obtain the expression of amplitude ratio AR, and Phase angle ; (d) Calculate all of the corner frequencies; (e) Manually sketch the asymptotic straightline approximation for Bode magnitude diagram on a semi-log graph paper (page 6). R(s) + Σ C(s) ?1(s) ?2($) ?(s) Figure 3
8. An R-L series circuit has a reactive power of 1234 VARs and an apparent power of 4329 VA. By how many degrees are voltage and current out of phase with each other? 9. An R-L series circuit contains a resistor and an inductor. The resistor has a value of 6.5 22. The circuit is connected to 120 V and has a current flow of 12 A. What is the inductive reactance of this circuit? 10. What is the voltage drop across the resistor in the circuit in Question 9? 11. A phase angle meter connected in an R-L series circuit indicates that the current is 28 degrees out of phase with the voltage. What is the circuit power factor? 12. An R-L series circuit has a power factor of 73%. If the apparent power is 560 kVA, what is the true power in the circuit?
k
3. Please consider the amplifier below: V₁ w R3 7 ΚΩ V2 ww R1 7 ΚΩ 22 R2 70 ΚΩ + ww R4 70 ΚΩ ли VL VO R5 R16 2 ΚΩ Vcc +/-8V 2 ΚΩ a. Determine VO b. Determine VL/V0 c. If V2=3V and V1 = 1V, determine VO d. Calculate power dissipated by the resistor R16 if V2 = 3V and V1 = 1V
Solve for v and I
T4. Sketch the schematic diagram of the Antenna Azimuth control system (position servo motor) as shown in fig. T4, then find the block diagram of the control system. Potentiometer 0;(1) Desired azimuth angle input power amplifier Motor 00(1) Azimuth angle output Fig. T4 Antennal Potentiometer
consider the system The suitable compensator for this system that meets the following specifications: Overshoot less than or equal to 20% and speed gain (Kv) greater than or equal to 10 is: choose an alternative A: B: C: D: None of the alternatives
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