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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lg dlngis In bode plot, the value of phase of G(wj) at the gain crossover frequency is -125 degrees, the PM of the *:systemis 55 degrees -55 degrees 125 degrees O OO0O0 -125 degrees
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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
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
Design an analog Butterworth filter with the following properties. Find the transfer function? Ap=2dB (Passband attenuation Wp-20rad/sec pass bondi frequency As 10 dB (Stop band attenuation WS-30 rad/sec stop body frequency
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
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.
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

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