Purchase Solution

Bode Plots for Loop Function

Not what you're looking for?

Ask Custom Question

1. The Bode plot for the loop function of a unity feedback system is shown below:

Determine the gain K which must be added to the system so that a phase margin of 45 degrees is achieved. K=3.5 K=1.4 K=0.17 K=0.83

2. The loop function for a unity feedback system is: G(s) = 2K/s(s+1)2.
Let K=1 so that Kv=2. Design a lag network using a Bode diagram so that the phase margin is 45 degrees. The compensator and the frequency c' used in the design are:

1+32.8s
_______
1+67.3s , 2.4rad/sec

1+27.7s
________
1+135.7s , 0.361rad/sec

1+32.8s
________
1+67.3s , 0.411rad/sec

1+23.5s
________
1+107.6s , 0.836rad/sec

3. The figure below represents the response of a circuit. Find the output voltage of the circuit assuming the input voltage Vin = 1.0V at 0.1 radians/second.

-15V 1.8 0.18 1.2 None of the above

Attachments
Purchase this Solution
Solution Summary

Bode plots for loop functions of a unity feedback system is given. The output voltage of the circuit is determined.

Purchase this Solution
Free BrainMass Quizzes
Air Pollution Control - Environmental Science

Working principle of ESP

Architectural History

This quiz is intended to test the basics of History of Architecture- foundation for all architectural courses.

View More Free Quizzes
Related BrainMass Solutions

  • Bode Plot and Nyquist

    61672 Bode Plot and Nyquist A feedback loop transfer function is give as: L(s) = 9 (s+10)/(s+1)(s-30) Draw the corresponding Bode magnitude and phase angle plots for L(iw) for 0.1

  • Nyquist, Bode Plot and Root Locus

    26348 Nyquist, Bode Plot and Root Locus A) Analyse the closed loop stability of the system with open loop transfer function {see attachment} i)Make a sketch of the Bode diagram and hence the full Nyquist diagram, showing all relavent details ii)

  • Sample Question: Control Systems

    The loop function for a unity feedback system is: Let K=1 so that Kv=2. Design a lag network using a Bode diagram so that the phase margin is 45 degrees.

  • Stable Control Systems

    To derive the Bode plots for amplitude and phase we need to find the poles and zero's of the closed loop transfer function. b.

  • Bode Plots and Harmonic Response

    20488 Bode Plots and Harmonic Response Please see attachment. a) Draw the Bode plot (on semi-logarithmic graph paper) of the transfer function.

  • Nyquist Analysis

    26758 Nyquist Analysis Bode Plots Given the Bode plot of open loop L(s)=..., (i) Make a sketch of the Nyquist diagram and determine the stability of the closed loop system with negative feedback.(ii)If the system is unstable...

  • Bode Plots

    10102 Bode Plot Functions Sketch the Bode magnitude plots for the following functions: (a) T(s)=-10s/(s+20)(s+2000) (b) T(s)=10(s+10)/(s+1000) Bode plots were introduced in my second circuit analysis class, but I really didn't think it was important

  • Control Systems using Matlab to Obtain Nyquist plot

    Determine these both graphically, from the appropriate bode plots, and using the Matlab functions margin and bandwidth Please find the attachment for the solutions. The Matlab scripts for both questions are also included.

  • Systems and Simulation: Bode Plots

    18346 Systems and Simulation: Bode Plots For a "notch" filter with transfer function P(s) = [s^2 + 0.1s + 1]/[s^2 + 10.1s +1] i) Sketch the asymptotic Bode magnitude plot on a piece of logarithmic graph paper ii) Correct your asymptotic sketch at 0.5

View More Related Solutions