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8/18/2019 Introduction to Timer IC 555 & its Applications
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Contents
• LIST OF FIGURES……………………………………………………3
1 ABSTRACT ………………………………………………….………….
2 INTRODUCTION.....................................................................................5
3 THEORY & METHODOLOGY...............................................................6
4 RESULTS & DATA WITH DATA ANALYSIS......................................12
5 DISCUSSION & CONCLUSIONS........................................................13
REFERENCES............................................................................................14
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LIST OF FIGURES
Figu! 2.1" #i$ %$'igu()i$ ' IC 555.....................................................................5
Figu! 3.1" 555 (* ( M$*)(+,! -Ti!/...................................................................6
Figu! 3.2" W(0!' ' M$*)(+,! O!()i$.......................................................
Figu! 3.3" 555 (* ($ A*)(+,! Mu,)i0i+()..............................................................
Figu! 3.4" W(0!' ' A*)(+,! O!()i$..............................................................
Figu! 3.5" E!i!$) 1Ci%ui) i(g(.................................................................7
Figu! 3.6 E!i!$) 2Ci%ui) i(g(..................................................................18
Figu! 3. E!i!$) 3Ci%ui) i(g(..................................................................18
Figu! 3. E!i!$) 4Ci%ui) i(g(..................................................................11
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8/18/2019 Introduction to Timer IC 555 & its Applications
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1. AbstractT9! (i$ u*! ' )9i* *!) ' !!i!$)* i* ) 9(0! ( +(*i% i!( ' )i! IC 555 & i)*
(,i%()i$*. I$ )9i* *!) ' !!i!$)*: %9((%)!i*)i%* ' )9! !* ' )9! )i! &
u*(g!* ' )9! IC ;!! +*!0!.
I$ !!i!$) 1: )9! gi0!$ %i%ui) i(g( ;(* %$*)u%)! ) *)u< )9! 555 IC (* (
M$*)(+,! Ti!. T9!$ +< %9($gi$g )9! 0(,u!* ' )9! !*i*) R & )9! %((%i) C )9!
u)u) ' )9! LED ;(* +*!0!.
I$ !!i!$) 2: )9! gi0!$ %i%ui) ;(* %$*)u%)! ) +*!0! )9! =u(,i)i!* ' 555 (* ($
A*)(+,! Mu,)i 0i+(). >< u*i$g ($ *%i,,*%! )9! ;(0!'* ;!! +*!0! ;9i,!
%9($gi$g )9! 0(,u!* ' )9! !*i*)* & )9! %((%i) C.
I$ !!i!$) 3: )9! gi0!$ i(g( ;(* %$*)u%)! ) u*! 555 IC (* ( (? !)!%). H!!
(* ( !)!%): LDR ;(* u*! & ( *!(?! ;(* u*! ' +*!0! )9! u)u).
I$ !!i!$) 4: )9! gi0!$ %i%ui) ;(* !*ig$! ;i)9 555 IC (* ($ Og($. I)@* %((+,! '
,(
8/18/2019 Introduction to Timer IC 555 & its Applications
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8/18/2019 Introduction to Timer IC 555 & its Applications
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03.Teor! " #etodo$o%!F IC 555 )i!: )9!! (! )9!! !()i$g !*.
M$*)(+,!
A*)(+,! >i*)(+,!
#onostab$e O&eration 'Ti(er)
W9!$ u*i$g 555 (* ( )i!: i) ;?* (* $*)(+,!. I) !($* i) 9(* $! *)(+,! *)()! ;9i%9 i* ''
*)()!. T9! %i%ui) i* (,;(
8/18/2019 Introduction to Timer IC 555 & its Applications
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Astab$e O&eration 'Astab$e #u$ti,ibtator)
I$ )9i* !: )9! )igg! )!i$(, & )9! )9!*9, )!i$(, (! %$$!%)!: )9!!'! *!,')igg! i*
'!: !()i$g (* ( u,)i0i+().
W9!$ )9! )i! u)u) i* 9ig9: i)* i$)!$(, i*%9(gi$g T. )u$* '' & )9! 0,)(g! ' )9!
%((%i) -%/ i$%!(*!* !$!$)i(,,< ;i)9 )9! )i! %$*)($) -R 1R 2/C. W9!$ % )9!
)9!*9, 0,)(g! !(%9!* 2B3%%: )9! %(() u)u) $ )9! )igg! )!i$(, +!%! 9ig9:
Page | 6
Figure 3.2
Figure 3.3
8/18/2019 Introduction to Timer IC 555 & its Applications
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!*!))i$g )9! ',i', ($ )9!$ )9! )i! u)u) +!%! ,;. T9!$ )u$* $ )9! i*%9(gi$g T.
($ )9! %((%i) i*%9(g!* )9ug9 R2 & )9! i*%9(gi$g T. W9!$ % '(,,* +!,; 1B3%%: )9!
%(() u)u) $ )9! )igg! )!i$(, +!%!* 9ig9 & )9! )i! u)u) +!%!* 9ig9 (g(i$.
T9! i*%9(gi$g T. )u$* '' & )9! % i*!* (g(i$.
T9! )i! ' ;9i%9 )9! u)u) i* 9ig9 i* gi0!$ +< T18.-R 1R 2/CT9! )i! ' ;9i%9 )9! u)u) i* ,; i* gi0!$ +< T28.R 2C
T9! ))(, !i ' )9! *%i,,()i$ i* gi0!$ +< T8.-R 12R 2/C
T9! ',,;i$g ;(0!'* *9;* )9! !()i$ ' A*)(+,! !.
E-&eri(ent 1 Te #onostab$e #u$ti,ibrator
T9! %i%ui) ;(* %$*)u%)! (* gi0!$ +!,;.
T9! ;! *u,< ;(* *;i)%9! $ & )9! i% *;i)%9 ;(* !**! ($ )9! !()i$ ;(*
+*!0!. A')! !**i$g )9! i% *;i)%9 ($ () )9! *(! !$) )9! *);()%9 ;(* *)()! ($
)9! ,!$g)9 ' )9! )i! ;9i%9 )9! LED i* $ ;(* !(*u! ($ !%!. R!!()! )9! *(!
%!u! +< 0(
8/18/2019 Introduction to Timer IC 555 & its Applications
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E-&eri(ent 2 Te Astab$e #u$ti,ibrator
T9! %i%ui) ;(* %$$!%)! (* *9;$ i$ )9! ',,;i$g 'igu!.
T9! %9($$!, 1 ' )9! *%i,,*%! ;(* %$$!%)! ) )9! u)u) ' )9! %i%ui) & )9! %9($$!, 2 ;(*%$$!%)! ) )9! i$ 2 ' )9! IC. T9!$ )9! ;! *u,< *;i)%9 ;(* $ ($ )9! ;(0!'* ;!!
+*!0!.
>< 0(
8/18/2019 Introduction to Timer IC 555 & its Applications
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E-&eri(ent 3 Te /ar /etector
A) 'i*) )9! LDR ;(* i,,ui$()! u*i$g )9! ,( & !(*u! )9! !*i*)($%!
' )9! LDR. T9!$ )9! LDR ;(* %0!! ($ )9! !*i*)($%! ;(* !(*u!.
T9!$ )9! %i%ui) ;(* %$$!%)! (* )9! (+0! i(g(.
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Figure 3.6
12
Figure 3.7
8/18/2019 Introduction to Timer IC 555 & its Applications
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A')! )9! LDR ;(* i,,ui$()! ($ *;i)%9! $ )9! %i%ui). T9!$ )9! *)()u* ' )9! %i%ui)
-*!(?!/ ;(* +*!0!. A')! )9() )9! LDR ;(* %0!! & +*!0! )9! u)u) *)()u* ' )9!
%i%ui).
E-&eri(ent Te Or%an
T9! %i%ui) ;(* %$*)u%)! (* )9! (+0! i(g(.
T9!$ *;i)%9! $ )9! ;! *u,< & )9! *;i)%9!* S1S ;!! !**! & +*!0! )9!
;(0!'* ' (!(* $ )9! *%i,,*%!. A')! )9() )9! !*i*)($%! ' R 1R ;!! %9($g!
;9i,! !**i$g S1S & )u$! )9! %i%ui) ) gi0! ;(0!'* ;i)9 gi0!$ !i*.
Fi$(,,< )9! !*i*)($%!* ' R 1R ;!! !(*u! u*i$g )9! igi)(, O9!)! ($ !%! )9!
)(?!$ 0(,u!*.
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Figure 3.8
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0. RESULTS " /ATA IT4 /ATA
ANAL5SIS
05. Discussion and
Conclusion
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8/18/2019 Introduction to Timer IC 555 & its Applications
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T9! *!) ' !!i!$)* ;!! +(*! $ )9! i$)u%)i$ ' )9! !* ' IC 555 )i! & i)*
!(, ;, (,i%()i$*. T9! *u%%!** ?!u) )9!! ;(*$@) ($< +*!0()i$. T9!!' )9! %!%) !%i*i$ ;(* )9! LED ;(* +,i$?i$g () )9()
!$) & i) %u,$@) +! +*!0! +!%(u*! ' i)* '!=u!$%< i* 0!< 9ig9. T9!$ )9! %!%) !*i*)!
;(* 'i! & +*!0! )9! ())!$ ' )9! %i%ui) -LED/.
H!! (,* )9!! ;!! i''!!$%!* +!);!!$ !(*u! & %(,%u,()! 0(,u!*. T9! !(*$* (! )9!
%$!$)* ' )9! %i%ui) ;!! $) i$ !=ui! 0(,u!* +!%(u*! ' )9! ),!($%!: )9! %$$!%)i$*
Page | 12
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' ;i!* ig9) +! ,*! $) 'i))! ) )9! +!( +( %!%),< !**i$g )9! *;i)%9!* S1S i) i* %((+,! )
,(< *i$g,! $)!* i$ )9i* %i%ui). T9! '!=u!$%i!* %($ +! %9($g! ;i)9 )9! 0(i(+,! !*i*)* 1 ) u%! ))(,,< i''!!$) *!) ' $)!*. T9! u*! ' )9! i! & )9! %((%i) ;9i%9 (!
u*! (%** )9! i$u) 0,)(g! i* ) !0!$) 0(i($%!* ' )9! *u,< 0,)(g!: ($ ?!! ( %$*)($)
*u,< 0,)(g!.
F )9!*! *!) ' !!i!$)* i) %($ +! !%i! )9() IC 555 )i! ,(