Kerala University 2009 B.Tech Applied Electronics and Instrumentation V Semester , (2003 Scheme) 03-505 : APPLIED INDUSTRIAL ELECTRONICS (U) - Question Paper

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Reg. No. : ....

Name :.........

V Semester B.Tech. Degree Examination, June 2009

(2003 Scheme)

03-505 : APPLIED INDUSTRIAL ELECTRONICS (U)

Time : 3 Hours    Max. Marks : 100

PART - A

Answer all questions.    (10x4=40 Marks)

I. a) Convert the following into BCD code

i) (A9CB)₁₆ ii) (10101101)₂

b)    Draw the circuit of a D latch and its truth table.

c)    State and prove De Morgans law.

d)    List the advantages of Assembly Language program.

e)    Explain timing and control unit in 8085.

f)    What are the modes of 8255 IC ?

g)    Explain Fetch and execute operation.

h)    Explain forward voltage triggering thyristor turn ON method.

i)    Explain reverse blocking mode of operation of thyristor. j) Draw forward gate characteristics of thyristor.

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PART - B Answer one question from each Module.

Module - I

II.    a) Design a ripple counter to count 0 - 15.

OR

III.    a) With necessary diagram, explain parity generator and its applications.

Module - II

IV.    a) Briefly explain 8251 - USART with schematic diagram.

b) Explain briefly various addressing modes used in Intel 8085. (2x10=20 Marks) OR

V.    a) Draw and explain the architecture of 8085 microprocessor.

b) Explain how you will interface 16 bit ADC with 8 bit CPU. (2x10=20 Marks)

Module - III

VI.    a) Explain and state V - I characteristics of SCR.

b) Describe the working of single phase Half wave Rectifier circuit with RL load, with neat diagram.    (2x10=20 Marks)

OR

VII.    a) Explain with neat block schematics a microprocessor based temperature control

system.

b) Explain briefly thyristor controlled drives for motors.    (2x10=20 Marks)

Attachment: kerala-university-2009-b-tech-applied-electronics-and-instrumentation-39590-1.pdf

Earning:   Approval pending.