# CO1 SET 2

```Student Id:
Student Name:
Sem-In Examinations-I,
B.Tech. (ECE), 2017 Batch
II/I, Summer Term
Course Code: 17EC2101
Time: 1 hours
Course Title: Analog Electronic Circuit Design
Max. Marks: 25
CO1
Part-A
(2X 3M=06M)
1.
2.
Mention the effect of temperature on PN junction Diode
Explain the principle of Varactor Diode
Part-B
(2 X 5M=10M)
5.
Explain briefly the formation of depletion region in a PN junction diode?
6.
Mention any three clipper circuits with neat sketches
Part-C(1 X 9M=09M)
9.
(a) Write a brief note on parallel clippers with reference voltage with relevant sketches(4M)
(b) A full-wave rectifier uses two diodes, the internal resistance of each diode may be
assumed constant at 20 Ω. The transformer r.m.s. secondary voltage from centre tap to each
end of secondary is 50 V and load resistance is 980 Ω.
Find : (i) the mean load current (ii) the r.m.s. value of load current
(5M)
(Or)
10.
(a) What do you mean by voltage regulation? Analyze the line &amp; load regulations of a zener
diode with a neat circuit and necessary equations
(5M)
(b) Write a brief note on LED
(4M)
Note: Test 1 exam is a combination of CO1 and CO2. Exam question paper will be CO
wise, with each CO 25 Marks.
```