Analog Electronics Circuit (February-2023)

(1)

Maulana Azad National Urdu University B.Tech III Semester Examination, February 2023 Paper - BTCS311EST : Analog Electronics Circuit

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8 : p 6 ,

Time : 3 hrs Marks : 70

@ c Z

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» V ß Z Î Ð V x Ó X ì è S g á Z Z ® Å V / n Æ [ Z C Ù X x Î z Ô zx z Ô w Zz z : ì 6 , V & ] Ñ Z Î p ! 6 , t

Z

[ b i Ñ ì ò X ì

C X Ù Z Î

Æ w ò i Ñ [ Z » w Z Î C Ù X ] Ñ Z Î á zZ [ Z ¿ & * * %æFN ( à { & ] Ñ Z Î è z c ] Ñ Z Î ò i Ñ

¹⁰

~ w Zz z

^.1

(10 x 1 = 10 Marks)

X ì

¹

a

V / 6 , ì

X

⁽²⁰⁰⁾

Î z ã ½ [ Z » w Z Î C Ù X ¶ [ Z Æ V ß Z Î õ 0 * ð Ã Ã D ¨ ( ¤ Ð ~ k ÔZ ] Ñ Z Î

⁸

~ zx z

^.2

(5 x 6 = 30 Marks)

X ] Z

⁶

a Æ w Z Î C Ù

V / 6 ,

ì

⁽⁵⁰⁰⁾

Î õ 0 * ã ½ [ Z » w Z Î C Ù X ¶ [ Z Æ V ß Z Î & ð Ã Ã D ¨ ( ¤ Ð ~ k XZ ] Ñ Z Î

⁵

~ x Î z

^.3

(3 x 10 = 30 Marks)

X ] Z

¹⁰

a Æ w Z Î C Ù

Zz z w

(1)

w Z Î Y Ã

V E Z H w Y

@ ì *

?

Oscillators (i)

ä

a Æ

^Generate

Ã

AC Voltage (b)

a Æ ä

^Prevent

Ã

AC Voltage (a)

ä

a Æ

^Rectify

Ã

AC Voltage (d)

a Æ ä

^Amplify

Ã

AC Voltage (c)

D

?

^Diodes

Ä ~

Bridge Rectifier (ii)

@ ì *

X

Produced Light

'

^LED ⁽ⁱⁱⁱ⁾

Unbiased (b) Forward Baised (a)

Z

~ y Ð ð Ã

7

^(d) Reverse Baised (c)

ì

?

Current Controlled Device

y Ã Ð ~ s f z g q

^(iv)

JFET (d) IGBT (c) BJT (b) MOSFET (a)

Á

@ ì *

?

^Resistance

Ð ä { c * i

Temperature

» ¾ Ð ~ s f z g q

^(v)

t

X

^(d) Germanium (c) Silicon (b) Carbon (a)

á Ð ì C

?

^Bond

¾

Semiconductor (vi)

Electro Valent (b) Covalent (a)

Z

~ y Ð ð Ã

7

^(d) Coordinate (c)

H

D

?

Majority Carriers

g Zz

^Minority

~

PN Junction (vii)

g q z s f

~ Ð

¾ Ð ì M

?

^JFET ^(viii)

Tetrode (d) Triode (c) Pentode (b) Diode (a)

D

?

^Terminals

Ä ~

^JFET

g Zz

^MOSFET ^(ix)

1/2

(2)

X

C ì

?

Punch-off Voltage

Å

^JFET ^(x)

25 V (d) 15 V (c) 0.6 V (b) 5V (a)

z zx

z Å

s

#

Reverse Breakdown Voltage

~

^Diode

? ì @ * H

Resistance Dynamic

g Zz

^Static

~

^Diode ⁽²⁾

H

D

?

Reverse Breakdown Mechanisms

~

^Diode

g Zz Ù a Æ

E Z

w D

X

^Purpose

¾ ¾

Common Collector Amplifier (a) (3)

Æ Û K t

X

^MOSFET

g Zz

^{JFET, BJT} ^(b)

¯

Ò

y ,

X

^Diagram

Ã x l Z µ Z µ Z Å

Transistor Configuration (4)

»

Positive Feedback

g Zz

^Negative

g Zz , y Ò

^Effects

Æ

Negative Feedback

~

Amplifiers (5)

H

Û 7 t ,

@ ì *

? Ã

, Ò Ð

y ,

X

RC Phase Shift Oscillator

? ì Z % H Ð

Oscillators (6)

¯

N

X

^Waveforms

g Zz

^Circuits

Ã

^Clampers

g Zz

^Clippers ⁽⁷⁾

Ã

, Ò Ð

y ,

X

Non-Idealities

~

^Op-amp ⁽⁸⁾

g q z s f 6 â , K ^

X

⁽⁹⁾

Zero Crossing Detector (c) Precision Rectifier (b) Voltage Regulator (a)

z x Î

Zz

g

Input Output

~ B X , s # z ¯

^Diagrams

Å

Bridge Rectifier

g Zz

Full Wave, Half Wave (10)

Ì Ã C N

X

Rectification Efficiently

Æ B Ò

y ,

X

^Diagrams

Ã

^Operations

Æ

Depletion Type MOSFET

g Zz

Enhancement Type (11)

Ì K

X

Working Principle

» k Z g q z s f Ò Ã

y ,

X

⁽¹²⁾

Input and Output Ampediance (b) Investing and Non Investing Amplifier (a)

Transresistance (d) Transconduance (c)

Ä

n

Active Filters

? ì t Û H H ~

Passive Filter

g Zz

^Active

? ì Z % H Ð

Active Filters (a) (13)

Æ D

? Å

z s

# , Zz

g â z Æ V

Û H t H

?

Power Amplifiers

g Zz

Differential (b)

H

@ ì *

?

Hysteresis comparator (c)

Zz

g

Ro=5K Rt=15K

X ì

^AV=300

» T

Voltage Series Feedback Amplifier

q - Z

^(a) ⁽¹⁴⁾

,

X

^Calcuate

Ã

Output Resistance

g Zz

^Input

ó

Voltage Gain

»

^Amplifier

k XZ ì Å

b § Z ù E

w D

X

^Amplifier

g Zz

^Switch

Ã

^BJT ^(b)

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