*Choose True or False False True The steady state error of a stable type 0 unity feedback system for a unit step function is zero Block diagram also provides the information regarding the physical construction of the system A unity-feedback control system has the open-loop transfer function G-4 (1+2s)/s(s+2) if the input to the system is a unity ramp, the steady-state error will be 0.5 While shifting a take-off point after the summing point, should be added Summing point in series with take-off point For overdamped systems a quadratic factor in transfer function can be replaced by two first order factors with .real poles In open loop system the control action depends on system variables For a unity feedback system. with G(s)=k/s(s+2) the settling time of step response is constant for all values of K21 In control systems the word controller includes error detector, control elements and feedback elements The response of an LCR circuit to a step input is Over damped If the transfer function has poles on the negative real axis

*Choose True or False False True The steady state error of a stable type 0 unity feedback system for a unit step function is zero Block diagram also provides the information regarding the physical construction of the system A unity-feedback control system has the open-loop transfer function G-4 (1+2s)/s(s+2) if the input to the system is a unity ramp, the steady-state error will be 0.5 While shifting a take-off point after the summing point, should be added Summing point in series with take-off point For overdamped systems a quadratic factor in transfer function can be replaced by two first order factors with .real poles In open loop system the control action depends on system variables For a unity feedback system. with G(s)=k/s(s+2) the settling time of step response is constant for all values of K21 In control systems the word controller includes error detector, control elements and feedback elements The response of an LCR circuit to a step input is Over damped If the transfer function has poles on the negative real axis

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

See similar textbooks

Similar questions

For a state space system with 1 a A = 1 0 B= with a=7. Find k1 and k2 for a full state feedback controller K = [k1, k2] , such that the closed loop poles are at -2+ 3j . Enter the answer as ki + ką and round your answer to two decimal places. 6.29
A unity feedback system with open-loop transfer function given as:?(?) = ??. ?(? + ?)(? + ?)(? + ??)without affecting its operating point (−1.54 ∓ ??2.66) appreciably a- Design a suitable compensator to drive the step response error to zero.b- Design a suitable compensator to reduce step error by factor of 5.
QUESTION 3 Consider a unity negative feedback control system. Assume that the plant G(s) does not have an integrator and you are using a proportional compensator K. You want to increase the closed-loop step tracking performance. Currently, the steady- state tracking error of the closed-loop system with K=K_old to a unit step signal is 0.1. You would like this error to be reduced to 0.02 with a new proportional compensator K=K_new. How does the proportional gain have to change to make this possible? We assume that the closed-loop is stable for all values of the proportional gain. Do not guess as incorrect answers will incur a penalty. K_new = 6.33 K_old K_new = 5.44 K_old K_new = 5 K_old K_new = 4.66 K_old
A unity feedback system with forward loop transfer function of 5 G(s) = s(s² + 6s + 10) 1- Determine the closed-loop dominate poles. 2- Design a lag compensator such that the velocity constant will increase to 10. 3- Determine the settling time of the compensated system. 4- Discuss the results.
Consider the following control system: R |Ke s+1 + or- What is the unit-step response for negative feedback, withc = 1.0? This is one out of five questions on the same control system. A C() = 0.5(1 -e") B C() = 0.5(1-e*) C() = 1- e- D C) = 1-e05t
Consider the feedback control system; It is required that the system has 16% overshoot to a unit step input and ess = 0.2 steady state error to a unit ramp input. Calculate the values of K1 and Kf such that these specifications are met.
Draw a block diagram for a negative-feedback system that might be used to control the level of light in a room to a constant value.
Given the four statements, which of the following statements are not true about the operation of an op-amp? i. Op-amp's close loop operation employs negative feedback that takes portion of the output and applies it back out of phase with the input. 1i. In an op-amp, amplification of the common input signals is much less than that of the opposite input signals. iii. In open-loop operation, the output of the op-amp is driven to saturation with Vo- +Vsat. iv. Op-amp's close loop operation employs positive feedback that takes portion of the output and applies it back out of phase with the input. O i, iii, iv O i, iv O i i, ii O i, iv
QUESTION 16 Consider a unity negative feedback control system. It is assumed that the plant G(s) includes an integrator and you are using a proportional compensator K. You want to increase the closed-loop ramp tracking performance. Currently, the steady-state tracking error of the closed-loop system with KK_old to a unit ramp signal is 0.1. You would like this error to be reduced to 0.025 with a new proportional compensator K=K_new. How does the proportional gain have to change to make this possible? We assume that the closed-loop is stable for all values of the proportional gain. K_new = 4.33 K_old K_new = 4 K_old K_new = 0.25 K_old OK_new = 5.44 K_old QUESTION 17 Given that G(s) = 2.1(s+10)(s-5)(s(s+6)(s+7)), calculate the phase of G(w) in radians for a frequency of 7 rad/s. Provide your answer with two decimal precision.
77.One condition for positive feedback is that the phase shift around the feedback loop must be _______°. 76.In order to start up, a feedback oscillator requires A. positive feedback greater than 1. B. unity feedback equal to 1. C. no feedback. D. negative feedback less than 1. 75.A circuit that can change the frequency of oscillation with an application of a dc voltage is sometimes called A. an astable multivibrator. B. a voltage-controlled oscillator. C. a crystal oscillator D. a Hartley oscillator 74.Which of the following is required for oscillation? A. The phase shift around the feedback network must be 180º B. None of the above C. ßA > 1 D. Both ßA > 1 and the phase shift around the feedback network must be 180º.
A unity feedback system has an open loop transfer function G(s) = 2/(S-1) 1. Is the open loop system stable 2. Is the closed loop system stable 3. Using Nyquist criterion check the stability of the closed loop system Hint: to solve branch 3, you only need to consider G(s)
Hello, please solve this question , Greetings Q1. Choose the correct answer 1. Which among the following is not an advantage of an open loop system? a. Simplicity in construction & design b. Easy maintenance c. Rare problems of stability d. Requirement of system recalibration from time to time 2. Which notation represents the feedback path in closed loop system representation? a. b(t) b. c(t) c. e(t) d. r(t) 3. Which among the following represents an illustration of closed loop system? a. Automatic washing machine b. Automatic electric iron c. Bread toaster d. Electric hand drier 4. Transfer function of the system is defined as the ratio of Laplace output to Laplace input considering initial conditions________ a) 1 b) 2 c) 0 d) infinite Feedback can always reduce the effects of noise and disturbance on system performance? a) True b) False 6. Which among the following is not an advantage of an open loop system? a. Simplicity in construction & design b. Easy…