Physics Investigatory Project: Common Base Transistor

8/16/2019 Physics Investigatory Project: Common Base Transistor

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TRANSISTOR COMMON-BASE CONFIGURATION

PHYSICS INVESTIGATORY PROJECT

Name: Joydeep Naskar Class: XII- ScienceRoll:School: Kendriya Vidyalaya,

IIM JokaSession: 20 !- "


2/13

INDEX

S.No.

Title

1 Acknowledgement

2 Certifcate

3 Introduction

4Experiment

-Aim-Materials required

- !ser"ation-#esult

5. $i!liograp%&


3/13

AcknowledgementI would like to t%ank t%e C$SE' (orpro"iding me t%e opportunit& tocarr& out t%is in"estigator&pro)ect* I also take t%isopportunit& to express m& sinceregratitude to m& P%&sics teac%er'Mr. Arin !" O#$!% PGT P$&'i('

)Contr!(t*!l+ ' (or guiding meand imparting a sound !ase o(knowledge pertaining to t%is topicw%ic% ensured t%e success(ulcompletion o( t%is pro)ect* I would

also like to t%ank %im (orunending assistance to ena!lecompletion o( t%e exercise*


4/13

CERTI,ICATE +%is is to %ere!& certi(& t%at t%eoriginal and genuinein"estigator& pro)ect %as !eencompleted sincerel& andsatis(actoril& !& Jo& ee-

N!' !r o( class XII / S(.0en ri&!Vi &!l!&! IIMJo !%0ol !t! ' regarding %is pro)ecttitled , To 't* & t$e e e(t o

!rio*' 'ol*te' on t$eele !tion o oilin -oint o


5/13

6!ter7 as per t%e C$SEpractical work requirement (ort%e session ./0- ./1*

#eacher$s Si%na&'re ()aminer$s Si%na&'re

* &ransis&or is a &hree &erminal ac&i+e de+ice #he &erminals areemi&&er, ase, collec&or In C. con/i%'ra&ion, &he ase is common &o

o&h inp'& emi&&er1 and o'&p'& collec&or1 or normal opera&ion, &he(-. 3'nc&ion is /or4ard iased and C-. 3'nc&ion is re+erse iased

In C. con/i%'ra&ion, I ( is 5+e, I C is 6+e and I . is 6+e


6/13

7i&h an increasin% &he re+erse collec&or +ol&a%e, &he space-char%e4id&h a& &he o'&p'& 3'nc&ion increases and &he e//ec&i+e ase 4id&h87$ decreases #his phenomenon is kno4n as 9(arly e//ec& #hen,&here 4ill e less chance /or recom ina&ion 4i&hin &he ase re%ion7i&h increase o/ char%e %radien& 4i&hin &he ase re%ion, &he c'rren& o/ minori&y carriers in3ec&ed across &he emi&&er 3'nc&ion increases #hec'rren& ampli/ica&ion /ac&or o/ C. con/i%'ra&ion is %i+en y,

;< =I C> =I(

CIRCUIT DIAGRAM

AIM:


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8/13

? Repea& &he a o+e s&ep keepin% VC. a& 2V, @V, and "V *ll &hereadin%s are &a 'la&ed@ * %raph is dra4n e&4een V (. and I ( /or cons&an& VC.

OUTPUT CHARACTERISTICS:

Connec&ions are made as per &he circ'i& dia%ram2 or plo&&in% &he o'&p'& charac&eris&ics, &he inp'& I( is kep& cons&an& a&

0m* and /or di//eren& +al'es o/ V C. , no&e do4n &he +al'es o/ I C? Repea& &he a o+e s&ep /or &he +al'es o/ I( a& 20m*, @0m*, and

"0m*, all &he readin%s are &a 'la&ed

@ * %raph is dra4n e&4een V C. and Ic /or cons&an& I(

OBSER ATIONS:Aeas& co'n& o/ +ol&me&er Vi < 0 V

2 Ran%e o/ +ol&me&er Vi< 0-! +ol&s? Bero error o/ +ol&me&er Vi< No error @ Aeas& co'n& o/ +ol&me&er V0 < 0 V! Ran%e o/ +ol&me&er V0


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D Bero error o/ milli-amme&er< No error

T!"le #o$ %n&'t c(!$!cte$%)t%c)Sl

No

.ase-emi&&er+ol&a%e V(. V1

(mi&&er c'rren& I( m*1 /or

VC. < 0V V C. < -2V V C. < -@V

2 ! 0 0 0

2 ? 0 0 0 0

? @ 2 0 0 0

@ @ " ! " E

! @ D 20 2 2"

" @ E ?D @D F'& o/ ran%e

T!"le #o$ o't&'t c(!$!cte$%)t%c)Sl

No

.ase-collec&or+ol&a%e VC. V1

Collec&or c'rren& IC m*1 /or

I(

0 @ ! E 0 E 0

2 ! 0 E 0 E !


10/13

? 2 ! 0 E 0 E !

@ @ ! ! E ! E !

! ! ! ! E ! E !" " ! ! E ! E !

! ! E ! E !

D D ! ! E ! E !

T!"le #o$ t$!n)#e$ c(!$!cte$%)t%c)Sl

No

(mi&&er c'rren& I(m*1

Collec&or c'rren& IC m*1 /or

VC. < 0V V C. < -2V V C. < -@V

0 0 0 0

2 ! ! ! !

? " " " "

@

! D D D D

" 0 0 0 0

CALCULATIONS


11/13

RESULT#he inp'&, o'&p'& and &rans/er charac&eris&ics are sho4n

in &he ad3oinin% %raphs2 #he c'rren& %ain, ; <? #he +ol&a%e %ain, *+ <

PRECAUTIONS


12/13

#he s'pply +ol&a%es sho'ld no& e)ceed &he ra&in% o/ &he&ransis&or

2 Me&ers sho'ld e connec&ed properly accordin% &o &heir

polari&ies

SOURCES O* ERROR #he &ransis&or may e /a'l&y

BIBILOGRPAH+

2arious !ooks and we!sites werere(erred w%ile making t%is pro)ect3


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/4 P%&sics +ext!ook (or class 5II' Part-I'6CE#+

4 P%&sics 7a!orator& Manual (or class5II' 6CE#+

84 9ikipedia*org

:4 Connect;Edu

04 Youtu!e*com

Physics Investigatory Project: Common Base Transistor

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