Ma6453 Syllabus PROBABILITY AND QUEUEING THEORY Regulation 2013 Anna University free download. PROBABILITY AND QUEUEING THEORY Syllabus free download.
UNIT I RANDOM VARIABLES Ma6453 Syllabus
Discrete and continuous random variables – Moments – Moment generating functions – Binomial, Poisson, Geometric, Uniform, Exponential, Gamma and Normal distributions.
UNIT II TWO – DIMENSIONAL RANDOM VARIABLES PROBABILITY AND QUEUEING THEORY Syllabus
Joint distributions – Marginal and conditional distributions – Covariance – Correlation and Linear regression – Transformation of random variables.
UNIT III RANDOM PROCESSES Ma6453 Syllabus
Classification – Stationary process – Markov process – Poisson process – Discrete parameter Markov chain – Chapman Kolmogorov equations – Limiting distributions.
UNIT IV QUEUEING MODELS PROBABILITY AND QUEUEING THEORY Syllabus
Markovian queues – Birth and Death processes – Single and multiple server queueing models – Little‟s formula – Queues with finite waiting rooms – Queues with impatient customers: Balking and reneging.
UNIT V ADVANCED QUEUEING MODELS PROBABILITY AND QUEUEING THEORY Syllabus
Finite source models – M/G/1 queue – Pollaczek Khinchin formula – M/D/1 and M/EK/1 as special cases – Series queues – Open Jackson networks.
EC6405 Question Bank Control System Engineering Regulation 2013 Anna University free download. Control System Engineering Question Bank free download.
Sample EC6405 Question Bank:
1. What are transient and steady state response of control system?
2. What are the units of kp, kv, ka?
3. Define Transfer Function of the System.
4. What are the advantages of Closed loop System?
5. What are the Properties of Signal flow graphs?
6. Write Mason’s gain formula of Signal flow graph.
7. Name any two dynamic models to represent control system.
8. What is meant by block diagram of a control system? What are the basic components of block diagram?
9. List the basic elements used for modelling a mechanical rotational system.
10. What is feedback? What type of feedback is employed in Control system?
11. Why negative feedback is preferred in control system?
12. Write F-V Analogy for the elements of mechanical rotational system?
13. Write any two rules to be followed in block diagram reduction techniques.
14. Define non-touching loop.
15. What is Control System?
16. What is signal flow graph?
17. Name the two types of electrical analogous for mechanical
system.
18. Write force balance equation of ideal spring, ideal mass.
19. Define open loop System and Closed loop System.
20. What is mathematical model of a system?
21. How a Control system is classified depending on the value of damping ratio?
22. List the advantages of generalized error coefficients.
23. Why derivative controller is not used in Control systems?
24. Give steady state errors to a various standard inputs for type 2 systems.
25. Determine the Damping ratio and natural frequency of oscillation.
26. What is meant by peak overshoot?
27. What is meant by steady state error?
28. Define rise time.
29. The damping ratio and natural frequency of a second order system are o.5 and 8 rad/sec respectively. Calculate resonant peak and resonant frequency.
EC6405 important questions Control System Engineering
EC6405 important questions Control System Engineering Regulation 2013 Anna University free download. Control System Engineering important questions free download.
Sample EC6405 important questions
1. What is control system?
A system consists of a number of components connected together to perform a specific function. In a system when the output quantity is controlled by varying the input quantity then the system is called control system.
2. What are the two major types of control system?
The two major types of control system are open loop and closed loop system.
3. Define open loop control system.
The control system in which the output quantity has no effect upon the input quantity are called open loop control system. This means that the output is not feedback to the input for correction.
4. Define closed loop control system.
The control system in which the output has an effect upon the input quantity so as to maintain the desired output value are called closed loop control system.
5. What are the components of feedback control system?
The components of feedback control system are plant , feedback path elements, error detector and controller.
6. Define transfer function.
The T.F of a system is defined as the ratio of the Laplace transform of output to Laplace transform of input with zero initial conditions.
7. What are the basic elements used for modeling mechanical translational system?
Mass, spring and dashpot.
8. What are the basic elements used for modeling mechanical rotational system?
Moment of inertia J,f dashpot with rotational frictional coefficient B and torsion spring with stiffness K
9. Name two types of electrical analogous for mechanical system.
The two types of analogies for the mechanical system are force voltage and force current analogy.
EC6405 Syllabus Control System Engineering Regulation 2013 Anna University free download. Control System Engineering Syllabus free download.
UNIT I CONTROL SYSTEM MODELING EC6405 Syllabus
Basic Elements of Control System – Open loop and Closed loop systems – Differential equation – Transfer function, Modeling of Electric systems, Translational and rotational mechanical systems – Block diagram reduction Techniques – Signal flow graph
UNIT II TIME RESPONSE ANALYSIS Control System Engineering Syllabus
Time response analysis – First Order Systems – Impulse and Step Response analysis of second order systems – Steady state errors – P, PI, PD and PID Compensation, Analysis using MATLAB
UNIT III FREQUENCY RESPONSE ANALYSIS EC6405 Syllabus
Frequency Response – Bode Plot, Polar Plot, Nyquist Plot – Frequency Domain specifications from the plots – Constant M and N Circles – Nichol‟s Chart – Use of Nichol‟s Chart in Control System Analysis. Series, Parallel, series-parallel Compensators – Lead, Lag, and Lead Lag Compensators, Analysis using MATLAB.
UNIT IV STABILITY ANALYSIS Control System Engineering Syllabus
Stability, Routh-Hurwitz Criterion, Root Locus Technique, Construction of Root Locus, Stability, Dominant Poles, Application of Root Locus Diagram – Nyquist Stability Criterion – Relative Stability, Analysis using MATLAB
UNIT V STATE VARIABLE ANALYSIS EC6405 Syllabus
State space representation of Continuous Time systems – State equations – Transfer function from State Variable Representation – Solutions of the state equations – Concepts of Controllability and Observability – State space representation for Discrete time systems. Sampled Data control systems – Sampling Theorem – Sampler & Hold – Open loop & Closed loop sampled data systems.
Stephen Hawking is Dead but will live forever in our hearts.
His good mind ranged across time and area tho’ his body was paralytic by illness, has died, a family interpreter early in the morning of 14 March 2018 Wednesday.
“He was an excellent soul and a rare man whose work and heritage can go on for several years,” his youngsters Lucy, Robert and Tim same during a statement.
The known theoretical man of science of his time, Hawking wrote thus perspicuously of the mysteries of area, time and black holes that his book, “A transient History of your time,” became a global trade edition, creating him one among science’s biggest celebrities since physicist.
Stephen Hawking is Dead
What happens to Stephen Hawking?
Even though his body was attacked by amyotrophic lateral pathology, or ALS, once Hawking was twenty one, he surprised doctors by living with the ordinarily fatal unwellness for quite fifty years. A severe attack of respiratory disorder in 1985 left him respiration through a tube, forcing him to speak through AN electronic voice synthesizer that gave him his distinctive robotic monotone.
But Stephen Hawking continuing his scientific work, appeared on tv and married for a second time.
Stephen Hawking contributions to science:
As one of Isaac Newton’s successors as Lucasian faculty member of arithmetic at Cambridge University, Hawking was concerned within the hunt for the good goal of physics — a “unified theory.”
Such a theory would resolve the contradictions between Einstein’s General Theory of relativity theory, that describes the laws of gravity that govern the motion of enormous objects like planets, and also the Theory of quantum physics, that deals with the globe of subatomic particles.
Professor physicist, British theoretical man of science. Photographed on the garden of the Centre for Mathematical Sciences, University of Cambridge.
For Hawking, the search was nearly a spiritual quest — he same finding a “theory of everything” would enable human race to “know the mind of God.”
“A complete, consistent unified theory is just the primary step: our goal could be a complete understanding of the events around North American country, and of our own existence,” he wrote in “A transient History of your time.”
In later years, though, he instructed a unified theory won’t exist.
Stephen Hawking followed up “A transient History of Time” in 2001 with the a lot of accessible sequel “The Universe during a shell,” change readers on ideas like super gravity, naked singularities and also the risk of AN 11-dimensional universe.
Hawking same belief during a God United Nations agency intervenes within the universe “to make certain the great guys win or get rewarded within the next life” was fancy.
“But one can not help asking the question: Why will the universe exist?” he same in 1991. “I do not know AN operational thanks to provide the question or the solution, if there’s one, a meaning. however it bothers American state.”
The combination of his popular book and his nearly total incapacity — for a moment he may use many fingers, later he may solely tighten the muscles on his face — created him one among science’s most recognizable faces.
He created anaglyph tv appearances in “The Simpsons” and “Star Trek” and counted among his fans U2 musician the sting, United Nations agency attended a January 2002 celebration of Hawking’s sixtieth birthday.
Stephen Hawking childhood was chronicled within the 2014 film “The Theory of Everything,” with Eddie Redmayne winning the simplest actor honour for his portrayal of the soul. The film targeted still a lot of attention on Hawking’s exceptional achievements.
Some colleagues attributable that celebrity with generating new enthusiasm for science.
Stephen Hawking achievements, and his longevity, conjointly helped influence many who even the foremost severe disabilities needn’t stop patients from living.
EC6404 Important Questions Linear Integrated Circuits
EC6404 Important Questions Linear Integrated Circuits Regulation 2013 Anna University free download. Linear Integrated Circuits Important Questions free download.
Sample EC6404 Important Questions:
1) Mention the advantages of integrated circuits over discrete circuits.
2) What is current mirror? Define input offset voltage.
3) Define an operational amplifier & draw the pin configuration of IC741.
4) What are the assumptions made from ideal op-amp characteristics?
5) Mention the characteristics of an ideal op-amp.
6) What happens when the common terminal of V+ and V- sources is not grounded?
7) Define input offset current. State the reasons for the offset currents at the input of the op-amp.
8) Define CMRR and SVRR of an op-amp.
9) Justify the reasons for using current sources in integrated circuits. What are the applications of current sources?
10) What is the advantage of widlar current source over constant current source?
11) Mention the advantages of Wilson current source.
12) What are the limitations in a temperature compensated zener-reference source?
13) What do you mean by a band-gap referenced biasing circuit?
14) In practical op-amps, what is the effect of high frequency on its performance?
15) What is the need for frequency compensation in practical op-amps? Mention the frequency compensation methods.
16) What are the merits and demerits of Dominant-pole compensation?
17) Define slew rate. What causes slew rate?
18) Why IC 741 is not used for high frequency applications?
19) In response to a square wave input, the output of an op-amp changed from -3V to +3V over a time interval of 0.25μs. Determine the slew rate.
EC6404 syllabus Linear Integrated Circuits Regulation 2013 Anna University free download. Linear Integrated Circuits syllabus free download.
UNIT I BASICS OF OPERATIONAL AMPLIFIERS EC6404 syllabus
Current mirror and current sources, Current sources as active loads, Voltage sources, Voltage References, BJT Differential amplifier with active loads, Basic information about op-amps – Ideal Operational Amplifier – General operational amplifier stages -and internal circuit diagrams of IC 741, DC and AC performance characteristics, slew rate, Open and closed loop configurations.
UNIT II APPLICATIONS OF OPERATIONAL AMPLIFIERS Linear Integrated Circuits syllabus
Sign Changer, Scale Changer, Phase Shift Circuits, Voltage Follower, V-to-I and I-to-V converters, adder, subtractor, Instrumentation amplifier, Integrator, Differentiator, Logarithmic amplifier, Antilogarithmic amplifier, Comparators, Schmitt trigger, Precision rectifier, peak detector, clipper and clamper, Low-pass, high-pass and band-pass Butterworth filters.
UNIT III ANALOG MULTIPLIER AND PLL EC6404 syllabus
Analog Multiplier using Emitter Coupled Transistor Pair – Gilbert Multiplier cell – Variable transconductance technique, analog multiplier ICs and their applications, Operation of the basic PLL, Closed loop analysis, Voltage controlled oscillator, Monolithic PLL IC 565, application of PLL for AM detection, FM detection, FSK modulation and demodulation and Frequency synthesizing.
UNIT IV ANALOG TO DIGITAL AND DIGITAL TO ANALOG CONVERTERS Linear Integrated Circuits syllabus
Analog and Digital Data Conversions, D/A converter – specifications – weighted resistor type, R-2R Ladder type, Voltage Mode and Current-Mode R 2R Ladder types – switches for D/A converters, high speed sample-and-hold circuits, A/D Converters – specifications – Flash type – Successive Approximation type – Single Slope type – Dual Slope type – A/D Converter using Voltage-to-Time Conversion – Over-sampling A/D Converters.
UNIT V WAVEFORM GENERATORS AND SPECIAL FUNCTION ICS EC6404 syllabus
Sine-wave generators, Multivibrators and Triangular wave generator, Saw-tooth wave generator, ICL8038 function generator, Timer IC 555, IC Voltage regulators – Three terminal fixed and adjustable voltage regulators – IC 723 general purpose regulator – Monolithic switching regulator, Switched capacitor filter IC MF10, Frequency to Voltage and Voltage to Frequency converters, Audio Power amplifier, Video Amplifier, Isolation Amplifier, Opto-couplers and fibre optic IC.
