IV B.Tech II Semester Supplementary Examinations, Apr/May 2006 INDUSTRIAL ELECTRONICS ( Common to Electronics & Communication Engineering, Electronics & Instrumentation Engineering and Mechatronics) Time: 3 hours Max Marks: 80 Answer any FIVE Questions All Questions carry equal marks ????? 1. (a) Explain the operation of a two stage D.C amplifier using Miller compensation technique. (b) List out the specifications of a D.C amplifier.
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2. (a) What is the disadvantage of single transistor SMPS and how it can be eliminated using bridge type of configuration?
(b) A single transistor, fly back SMPS operating at 16 kHz is supplying a mean load power of 120W at a mean voltage of 80 V from a dc source of 110 V. Estimate the mark/ space ratio of the output voltage and the value of inductance required in the circuit. [8+8] 3. (a) How is short-circuit current protection provided for an IC regulator? Draw and explain the circuit diagram.
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(b) Explain voltage regulator system using LM 105 IC and with an external pass transistor. [8+8] 4. Design a general SCR pulse-trigger circuit to obtain a range of conduction angle of 90 to 180 degrees. Assume 60 Hz ,115-V rms (163-V peak) line operation, and a trigger device firing voltage of 40 V. [16] 5. Explain the importance of the freewheeling diodes in single-phase full-wave controlled rectifier circuit. And also justify the statement “Freewheeling diode improves the power factor of the system”. [16]
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6. Explain the operation of single-phase bridge inverter with the help of load voltage and load current waveforms. [16] 7. Draw and explain the simple heat control circuit for resistance welding with the help of its voltage waveforms. [16]
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8. (a) What are the properties of materials used in dielectric heating? (b) Explain various methods of coupling electrodes to RF generator in dielectric heating applications. [8+8] ?????
5. Explain the importance of the freewheeling diodes in single-phase full-wave con- · trolled rectifier circuit. And also justify the statement âFreewheeling diode im- · proves the power factor of the systemâ. [16] · 6. Explain the operation of single-phase bridge inverter with the help of load voltage · and load current waveforms.
(a) Compare and explain the role of shunt and series capacitors in P.F. correction. (b) A 400V, 50 cycles three phase line delivers 207KW at 0.8p.f. (lag). It is.
1.a) Define Artificial Intelligence. Explain the techniques of A.I. Also describe the · characteristics of Artificial Intelligence. b) Explain the depth first search with an ...
(b) With the help of diagram, explain the (input/output sub system)IOSS oper- · ations for ... a. A police database the provides information on stolen automobiles.
(a) Explain the various capabilities and limitations of the robot languages. [7] · (b) Describe the following search techniques: · i. Depth-first search · ii. Breadth-first ...
Make a survey of petroleum reserves in the world and compare them with the · reserves available in India. Discuss the various exploration methods for finding.
(b) Derive the equation for the logarithmic decrement. 2. Derive the equation for motion for damped free vibration. 3. (a) Derive the equation for vibration transmissibility of a damped system. (b) A vibratory body of mars 200kg supported on a spring
memory. (b) Differentiate between Release and entry consistency models. [10+6] · 7. Explain the ... 8. (a) Can a DCE client connect to multiple servers ? Explain.
(a) What is the â need of rounding off of capacities in estimating the probabilities of a systemâ. Explain how they are evaluated. (b) Consider that there are four ...
IV-B.Tech. II-Semester Supplementary Examinations, April/May-2004 · DATABASE MANAGEMENT SYSTEMS ... b) Is SQL more powerful than relational algebra? Justify. c) What is a foreign key constraint? Why are such constraints ... What are the fundamental o
... Apr/May 2006. UNIX AND WINDOWS NT ... (b) Write about shell variables · [8+8] ... How the Windows NT operating system can partition the disk? How it can ...
A constant strain triangle in a state of plane stress is subjected to a uniform tem- · perature change of âT. Assuming that the coefficient of thermal expansion is α,.
and disadvantages. 3. (a) Explain glass transition temperature of polymers and its significance. (b) What are Crystalline and Amorphous polymers, give example ...
All Questions carry equal marks · ***** · 1. Explain the ultimate analysis of coal and its importance. [16] · 2. Discuss the importance of catalyst in shift conversion.
Code No: NR420207. NR. IV B.Tech II Semester Supplementary Examinations, Apr/May 2006. MANAGEMENT INFORMATION SYSTEMS · ( Common to Electrical & Electronic Engineering, Electronics & · Communication Engineering, Electronics & Instrumentation Engineer
(a) Why it is necessary of subdivision of system parts at Operator's console? And ... (b) What are the different alarms provided in Operator's console room?
(a) Explain the various capabilities and limitations of the robot languages. ... 3. What are the different tupes of electric drives used in the robots? Describe them.
x + y + z = 6.6; x - y + z = 2.2; x + 2y + 3z = 15.2 · 4.a) · Find the roots of the following polynomial equation using the Newton-Raphson · method. X · 4 · â 8X.
