
G2 = 2.262931 when G1=4, H=0.08 , Vo=21 ,Vi=4
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An industrial processes a closed loop system as shown below the open op 01 - 4,...
2. Aunity feedback system is shown in the Figure (a) below has open-loop poles at land apero at The root locus plot for the open-loop transfer function for K> is as shown in Figure (b) below. Determine the open-loop transfer function (in) closed-loop transfer function(i) characteristic equation and the liv the break-in point. (4+4 +2.5) (vill the pain K is chosen as 5 will the closed-loop system have an oscillatory response to a step input? Justify your answer mathematically(5) 11
ELEC324/624 2018 Page 4 i) (2 marks) The open-loop frequency response of the LM748 op-amp is shown in the figure be for two different values of the external compensating capacitor, Ci.If provides unity-gain compensation, determine the capacitance the op-amp for a closed-loop gain of 3 dB. C-30 pF required to compensat Open Loop Frequency Response 120 100 80 40 20 -20 FREQUENCY(Hx) j) (2 marks) Describe how delay in the loop of any feedback control system can seriously compromise the...
A5. A unity feedback system has Open loop Transfer system (s+1). What is its Closed loop Transfer function? (5 marks)
If the open loop gain of an op-amp is very large, does the closed loop gain depend upon the external components or the op-amp? Explain the meaning of open loop and closed loop operation of an op- amp? What is a practical op-amp? Draw its equivalent circuit.
2. The inverting OP-AMP shown in the figure has an open loop gain of 100. The closed loop gain VVs is R 10K R 1K GATEpaper.in a.8 b.-9 c.10
A6. A unity feedback system has Open loop Transfer system s(s+1). What is its Closed loop Transfer function? (5 marks) 20 indir
1 00000, ZUUJ. 2.11 Problems 1) For the closed loop system shown below: a. Find the open-loop and closed-loop transfer functions. b. Find the poles of the open-loop and closed-loop transfer functions for k=12. (5 + 25 + 6)
A negative feedback closed-loop system shown in the figure below is subjected to an input of 5 V. Determine the output voltage (volts) if the system has a forward gain (G(s)) of 1 and feedback gain (H(s) of 1. R(S) - G(s) C($) HI O1V 071 2.5 V 5V
Spring 2019 3. Given a closed-loop control system with unity feedback is shown in the block diagram. G(s) is the open-loop transfer function, and the controller is a gain, K. 1. (20) Calculate the open-loop transfer function tar →Q--t G(s) (10) Calculate the steady-state error to a step input of the open-loop system. 7. (in Bode Form) from the Bode plot. (10) Calculate the shortest possible settling time with a percentage overshoot of 5% or less. 8. 2. (10)Plot the...
U Question 25 1 pts The difference between an open loop system and a closed loop system is: Ground connection Actuator Feedback sensor Question 26 1 pts By adding a feedback loop, we get the ability to: None of the above Remove the poles of the system Move the locations of the poles of a system's transfer function Calculate the transfer function