Q. The loop gain of an elementary feedback control system(see Figure) is given by G(s)·H(s), which is 10/(1+s/2)(1+s/6)(1+s/50). Sketch the asymptotic Bode plot of the loop-gain function. Gainmargin (GM) is defined by [-20 log| ¯G(ωπ) ¯H(ωπ)|], which is the negative of the magnitude of the loop gain at ω = ωπ ,ωπ represents the angular frequency at which the loop gain reaches a phase of -π. If ωu represents the value of ω where the loop gain has a magnitude of unity, then phase margin (PM) is defined by the phase of the loop gain at ω = ωu plus π. Evaluate GM and PM for this case from the asymptotic Bode plot.

Posted Date: 6/18/2013 1:35:13 AM | Location : United States

Ask an Expert

Related Discussions:- Evaluate gm and pm for the asymptotic bode plot, Assignment Help, Ask Question on Evaluate gm and pm for the asymptotic bode plot, Get Answer, Expert's Help, Evaluate gm and pm for the asymptotic bode plot Discussions

Write discussion on Evaluate gm and pm for the asymptotic bode plot
Your posts are moderated

Write your message here..

Related Questions

Show advantages of oscillators, Q. Show Advantages of Oscillators? Alth... Q. Show Advantages of Oscillators? Although oscillations can be produced by mechanical devices (e.g. alternators), but electronic oscillators have the following advantages:

Energy stored in the capacitor when it is fully charged, An 12µF capacitor ... An 12µF capacitor is connected in series to a 0.5M? resistor across the dc voltage supply of 240V. verify: (a)  Time constant (b)  Initial charging current (c)  Time fo

Describe the physical properties and uses of the brasses, Describe the phys... Describe the physical properties and uses of the Brasses. Brass - It is an alloy of copper and zinc along with 60 percent copper and 40 percent zinc. Its properties are- 1.

Describe common-mode rejection ratio, Q. Describe Common-Mode Rejection Rat... Q. Describe Common-Mode Rejection Ratio ? When there is a common-mode input voltage, i.e., when the input signals are equal and greater than zero, the output voltage of an idea

Calculate the minimum sampling frequency, Three sine waves along with frequ... Three sine waves along with frequencies 100Hz, 200Hz and 350Hz and with amplitudes of 1V, 2V and 1.5V correspondingly, are added together to make a single waveform. What is the min

Explain current divider rule, Explain current divider rule Current flow... Explain current divider rule Current flow through at every resistor that connected by parallel can be find by using current divider rules (CDR).

Machine language - first generation language, Machine Language ( First Gene... Machine Language ( First Generation Language) As we have  already discussed that all digital  circuits  can identify  only two  states which  can be specified  by 0 and i henc

What is the need of coupling, what is the need of coupling what is the need of coupling

Show a schematic diagram of the seven- segment decoder, Q. Digital watches ... Q. Digital watches display time by turning on a certain combination of the seven-segment display device. (a) Show a typical seven-segment display. (b) Develop a truth table f

Antenna fundamentals, Antenna Fundamentals We shall discuss here only t... Antenna Fundamentals We shall discuss here only the fundamental concepts needed to understand the role of an antenna as a power-coupling element of a system. Figure illustrates