AB 19 Wzmacniacz o Sprzezeniu RC

8/11/2019 AB 19 Wzmacniacz o Sprzezeniu RC

http://slidepdf.com/reader/full/ab-19-wzmacniacz-o-sprzezeniu-rc 1/18

AB-19CASCODE AMPLIFIER

ANALOG LABEXPERIMENT BOARD

Ver. 1.0

An ISO 9001: 2000 company

94-101, Electronic Complex, Pardesip ra INDORE -4!2010, India"



AB-19

Tel. : 91-#$1-2!#0$01 Fax: 91-#$1-2!!!%4$Ema l : in&o'scientec(")* !e" : +++"scientec(")*

S# e$%e#& Te#&$'l'( e) P*%. L%+. 2

mailto:[email protected]

http://www.scientech.bz/


http://www.scientech.bz/



AB-19

CASCODE AMPLIFIER

AB-19

TABLE OF CONTENTS

1. Introd ction $

,. (eory !

. Experiment 1 o st dy t(e operation o& Cascode Ampli&ier

. Experiment 2 10o st dy t(e &re. ency response o&

Cascode Ampli&ier

/atas(eet 12

/. arranty 14

. ist o& ser ice Centers 1!

. ist o& Accessories +it( A3-19 1%

S# e$%e#& Te#&$'l'( e) P*%. L%+. $



AB-19

INTROD2CTION

AB-19 is a compact, ready to se CASCODE AMPLIFIER experiment )oard" (is )oard is se& l &or st dents to nderstand t(e +or in5 andoperation o& ario s cascade ampli&ier sta5es" It can )e sed as stand alone

nit +it( external /C po+er s pply or can )e sed +it( SCIENTEC3ANALOG LAB ST-, 1, +(ic( (as ) ilt in /C po+er s pply, AC po+ers pply, & nction 5enerator, mod lation 5enerator, contin ity tester, to55les+itc(es, and potentiometer"

L )% '4 B'ar+) :

M'+el Name

AB-01AB-0,AB-0AB-0AB-0/AB-0AB-0AB-05AB-09

AB-1/AB-1AB-1AB-15AB-,1AB-,,AB-,AB-,

AB-,5AB-,9AB- 0AB- 1AB- , AB- AB- 1AB- ,

AB-

/iode c(aracteristics 6Si, 7ener, E/8ransistor c(aracteristics 6C3 P 8ransistor c(aracteristics 6C3 P P8ransistor c(aracteristics 6CE P 8ransistor c(aracteristics 6CE P P8ransistor c(aracteristics 6CC P 8ransistor c(aracteristics 6CC P P8E c(aracteristics

;ecti&ier Circ its

Common Emitter Ampli&ier Common Collector Ampli&ier Common 3ase Ampli&ier ;C-Co pled Ampli&ier Class A Ampli&ier Class 3 Ampli&ier 6p s( p ll emitter &ollo+er8Class C ned Ampli&ier P(ase oc ed oop 6 < /emod lator =

re. ency /i ider>< ltiplier8

< lti i)rators 6Asta)le > <onosta)le8-? and ?- Con erter ?-I and I-? Con erter 7ener ?olta5e ;e5 lator

ransistor Series ?olta5e ;e5 lator ransistor S( nt ?olta5e ;e5 lator

/i&&erential Ampli&ier 6 ransistori*ed8Operational Ampli&ier 6In ertin5 > on-in ertin5 > /i&&erentiator8

Operational Ampli&ier 6Adder>Scalar8

S# e$%e#& Te#&$'l'( e) P*%. L%+. 4



AB-19

AB-

AB- /

AB-/1AB-/,AB-/AB-/AB- /

AB-

AB-

AB-51

AB-5,

AB-5

AB-5

AB-90AB-91AB-9,

AB-9

Operational Ampli&ier 6Inte5rator>/i&&erentiator8Sc(mitt ri55er and Comparator Acti e &ilters 6 o+ Pass and @i5( Pass8Acti e 3and Pass ilter

otc( ilteri)er Optic Analo5 in

P(ase S(i&t Oscillator ien 3rid5e OscillatorsColpitt Oscillator

irc(o&&Bs a+s 6 irc(o&&Bs C rrent a+ =irc(o&&Bs ?olta5e a+8(e eninBs and <axim m po+er rans&er(eorem

;eciprocity and S perposition (eoremelle5enBs (eorem

+o port net+or parameter Optical ransd cer 6P(oto oltaic cell8Optical ransd cer 6P(otocond cti e cell> /;8Optical ransd cer 6P(oto ransistor8

" and many more

S# e$%e#& Te#&$'l'( e) P*%. L%+. !



AB-19

T3EOR6

Sin5le ampli&ier circ its, s c( as a common emitter, common )ase andcommon collector ampli&iers are seldom &o nd alone, as a sin5le sta5eampli&ier, in any system" Denerally, at least t+o or more t(an t+o sta5esare connected in cascade com)ination" I& t(e o tp t o& one ampli&ier isconnected 6co pled8 to t(e inp t o& anot(er ampli&ier t(e sta5es are said to

)e connected in cascade " (e )ene&it o& cascaded ampli&iers is to de elopan o tp t olta5e lar5er t(an eit(er sta5e alone can de elop"

(e 5ain o& a sin5le sta5e is not as important as t(e system 5ain" /esi5nerss ally set indi id al sta5e 5ains relati ely lo+ to red ce si5nal distortion"

One o& t(e ery important re. irements o& cascade is &irst sta5e o tp timpedance o& ampli&ier matc(es to inp t impedance o& second sta5e +(ic(is no+n as impedance matc(in5" (en t(e o tp t impedance o& pre io ssta5e matc(es +it( t(e inp t impedance o& its next sta5e, maxim m po+eris trans&erred"

Ca)#'+e Am7l 4 er :

Cascode ampli&ier is a special case o& cascade ampli&ier" Cascode ampli&ieris a t+o sta5e ampli&ier, +(ic( comprises a CE ampli&ier dri in5 a C3ampli&ier" (e CE ampli&ier (as +it( si5ni&icant c rrent and olta5e 5ainmoderate inp t and o tp t impedance" (e (i5( inp t impedance isdesira)le +(ile t(e (i5( o tp t impedance possess some pro)lems" (e(i5(er t(e o tp t impedance t(e less c rrent can )e dra+n &rom anampli&ier +it(o t a si5ni&icant drop in o tp t olta5e " (e CE is sed most

o&ten &or olta5e ampli&ication "It can pro ide a lar5e o tp t olta5e s+in5"In m ltista5e system t(is o tp t )ecomes t(e inp t o& t(e next sta5e o& t(esystem " (e emitter resistor ampli&ier is similar to t(e CE ampli&ier ) t (aslo+er olta5e 5ain and (i5(er inp t impedance "3eca se o& t(e &eed)ac

present in t(is ampli&ier, internal noise 5enerated )y t(e transistor is almosteliminated"

(e C3 ampli&ier (as lo+ inp t impedance and relati ely (i5( o tp timpedance" (ese properties are less desira)le &or si5nal ampli&ication" I&t(e )ase is )ypassed to 5ro nd +it( a capacitor, t(e ampli&ier (as (i5(

olta5e 5ain ) t t(e c rrent 5ain is less t(an nity " ( s i& t(e so rce

S# e$%e#& Te#&$'l'( e) P*%. L%+. %



AB-19

dri in5 t(e ampli&ier (as a lo+ impedance, and t(e load is dra+in5 littlec rrent, t(e C3 can )e sed as a olta5e ampli&ier "I& t(e dri in5 so rce (asa (i5(er impedance, +e can o&&set t(is ndesira)le e&&ect )y sin5 a CE

ampli&ier to dri e t(e C3 ampli&ier" ( s t(e o erall inp t impedance is(i5("

C r#8 % D a(ram '4 Ca)#'+e Am7l 4 er :

F (.,

In Cascode Ampli&ier ransistor 1 &orms t(e CE ampli&ier and C3ampli&ier tili*es 2 " (is con&i5 ration (as t(e ad anta5e o& increasedo tp t resistance and +ider &re. ency response +(ile maintainin5 (i5(

olta5e 5ain" (e inp t resistance o& t(e CE sta5e is relati ely (i5(" (elo+ inp t impedance o& t(e C3 circ it &orms t(e load resistance &or t(e CEsta5e " (e collector c rrent o& 2 is almost e. al to t(e collector c rrent o&

1, +(ic( in t rn dri es t(e load 6; FF ;c28 in t(is circ it t(e capacitor areconsidered as s(ort circ its" (e dc so rce, ? cc, is set to 5ro nd potentialsince +e are interested in t(e ac component o& t(e si5nals since ; E is

)ypassed )y CE"

S# e$%e#& Te#&$'l'( e) P*%. L%+. #



AB-19

Ba$+ +%& '4 a Ca)#'+e Am7l 4 er :

3and+idt( is de&ined as t(e )and o& &re. ency o er +(ic( t(e ampli&ier5ain is constant"

F (.

(e &1 and &2 points are also no+n as (al& po+er points" (e (al& po+er points are t(e points at +(ic( t(e si5nal amplit de (as dropped to "#0# percent o& t(e maxim m si5nal amplit de" Any &re. ency )elo+ t(e &1 ora)o e t(e &2 point is not considered a sa)le o tp t &rom t(e ampli&ier" (e

)and+idt( o& t(e ampli&ier is t(e di&&erence )et+een t(e &1 and &2 points"

3and+idt( 638 G &2 H &1 "628

S# e$%e#& Te#&$'l'( e) P*%. L%+.



AB-19

EXPERIMENT 1

O" e#% :

T' )%8+; %&e '7era% '$ '4 Ca)#'+e am7l 4 er.

A77ara%8) Re<8 re+ :

1. Analo5 )oard AB-19 "

,. /C po+er s pply 12? &rom external so rce or ST-, 1, A$al'(La" "

. nction Denerator"

. Oscilloscope"

/. 2mm patc( c(ords"

C r#8 % D a(ram :

Circ it sed to st dy t(e operation o& Cascode ampli&ier is s(o+n )elo+ :

S# e$%e#& Te#&$'l'( e) P*%. L%+. 9



AB-19

F (.

S# e$%e#& Te#&$'l'( e) P*%. L%+. 10



Pr'#e+8re :• Connect 12? aria)le dc po+er s pplies at t(eir indicated

position &rom external so rce or ST-, 1, A$al'( La" "

1. Connect 1? p-p , 1 @* Sine +a e si5nal at t(e inp t 6)et+een points? in and 5nd8 o& Cascode ampli&ier AB-19 )oard and o)ser e t(esame on oscilloscope C@ I"

,. O)ser e t(e o tp t +a e&orm )et+een points ?o t and 5nd" onoscilloscope C@ II"

. Calc late t(e ?olta5e Dain 6A ? 8"

Re)8l% :

?olta5e Dain o& Cascode ampli&ier JA ? G ? o t > ? in K G ""

EXPERIMENT ,



AB-19

O" e#% :

T' )%8+; %&e Fre<8e$#; Re)7'$)e '4 Ca)#'+e am7l 4 er.

A77ara%8) Re<8 re+ :1. Analo5 )oard AB-19 "

,. /C po+er s pply 12? &rom external so rce or ST-, 1, A$al'(La" "

. nction Denerator"

. Oscilloscope"

/. 2mm patc( c(ords"

C r#8 % D a(ram :Circ it sed to st dy t(e re. ency ;esponse o& Cascode ampli&ier iss(o+n )elo+:

F (./

Pr'#e+8re :

S# e$%e#& Te#&$'l'( e) P*%. L%+. 1,



AB-19

• Connect 12? aria)le dc po+er s pplies at t(eir indicated position &rom external so rce or S -, 1, A$al'( La" "

1. Connect 1? p-p , 100@* Sine +a e si5nal at t(e inp t 6)et+een points? in and 5nd8 o& ampli&ier o&AB-19 )oard and o)ser e t(e same onoscilloscope C@ I"

,. O)ser e t(e o tp t +a e&orm )et+een points ? o t and 5nd onoscilloscope C@ II"

. Increase t(e inp t &re. ency al e and o)ser e t(e o tp t +a e&ormamplit de on oscilloscope

. <eas re t(e maxim m amplit de o& t(e o tp t sine +a e and t(e&re. ency ran5e &or +(ic( t(e o tp t +a e amplit de is $d3 do+nt(e maxim m amplit de"6t(is +ill 5i e t+o al es o& &re. ency & and & @, t(e lo+er $d3 &re. ency and (i5(er $d3 &re. encyrespecti ely8 as s(o+n in &i5"!"

/. Calc late 3and+idt( o& Cascode ampli&ier sin5 E."2

Re)8l% :

&1 6lo+er $d3 &re. ency8 G """

&2 6(i5(er $d3 &re. ency8 G ""

3and+idt( 6&2 H &18 G

DATAS3EET

S# e$%e#& Te#&$'l'( e) P*%. L%+. 1



AB-19

S# e$%e#& Te#&$'l'( e) P*%. L%+. 1



AB-19

S# e$%e#& Te#&$'l'( e) P*%. L%+. 1/



AB-19

!ARRANT6

1= e 5 arantee t(e instr ment a5ainst all man &act rin5 de&ects d rin5

24 mont(s &rom t(e date o& sale )y s or t(ro 5( o r dealers",= (e 5 arantee co ers man &act rin5 de&ects in respect o& indi5eno s

components and material limited to t(e +arranty extended to s )y t(eori5inal man &act rer, and de&ect +ill )e recti&ied as &ar as lies +it(ino r control"

= (e 5 arantee +ill )ecome INVALID.a= I& t(e instr ment is not operated as per instr ction 5i en in t(e

instr ction man al"

"= I& t(e a5reed payment terms and ot(er conditions o& sale are not&ollo+ed"

#= I& t(e c stomer resells t(e instr ment to anot(er party"+= Pro ided no attempt (a e )een made to ser ice and modi&y t(e

instr ment"

= (e non-+or in5 o& t(e instr ment is to )e comm nicated to simmediately 5i in5 & ll details o& t(e complaints and de&ects noticedspeci&ically mentionin5 t(e type and sr" no" o& t(e instr ment, date o&

p rc(ase etc"

/= (e repair +or +ill )e carried o t, pro ided t(e instr ment isdispatc(ed sec rely pac ed and ins red +it( t(e rail+ays" o and &roc(ar5es +ill )e to t(e acco nt o& t(e c stomer"

DESPATC3 PROCED2RE FOR SERVICE

S(o ld it )ecome necessary to send )ac t(e instr ment to &actory pleaseo)ser e t(e &ollo+in5 proced re:

1= 3e&ore dispatc(in5 t(e instr ment please +rite to s 5i in5 & ll detailso& t(e &a lt noticed"

,= A&ter receipt o& yo r letter o r repairs dept" +ill ad ise yo +(et(er itis necessary to send t(e instr ment )ac to s &or repairs or t(eadL stment is possi)le in yo r premises"

/ispatc( t(e instr ment 6only on t(e receipt o& o r ad ice8 sec rely pac edin ori5inal pac in5 d ly ins red and &rei5(t paid alon5 +it( accessories anda copy o& t(e details noticed to s at o r &actory address"

S# e$%e#& Te#&$'l'( e) P*%. L%+. 1



AB-19

LIST OF SERVICE CENTERS

1. Scientec( ec(nolo5ies P" td"90, Electronic Complex P(: 60#$18 !2029!9Pardesip ra, Email: in&o'scientec(")*I /O;E H 4!2010

,. Scientec( ec(nolo5ies P" td"irst loor, P(": 60118 2%!1$912, 2% %494$

14, Mday Par , ax: 60118 2% %494$" E /E @I H 110049 Email: ndel'scientec(")*

. Scientec( ec(nolo5ies P" td" e+ no"2, Old no"10, 4 t( street P(": 60448 !21 #!4 , !21 #!49

?en ates+ara na5ar, Adyar ax: 60448 !21 #!49C@E AI H %0002! Email: c(ennai'scientec(")*

. Scientec( ec(nolo5ies P" td" 202>19, 4 t( main street P(": 60 08 !12 !011 Dan5ana5ar, ax: 60 08 !12 !022 3A DA O;E- !%00$2 Email: )an5alore'scientec(")*

/. Scientec( ec(nolo5ies P" td" irst &loor, )loc P(": 60228 !%299!4# ;anLit st dio compo nd, ax: 60228 241!!9 4 /ada Sa(e) P(al e road, Email: stplm m' snl"net /adar 6East8 <M<3AI H 400014

. Scientec( ec(nolo5ies P" td" 9 , Sadas(i Pet(, P(": 60208 244%1%#$ Dyan Pra)od(ini ane, ax: 60208 244 240$ PM E H 4110$0 Email: p ne'scientec(")*

S# e$%e#& Te#&$'l'( e) P*%. L%+. 1









AB-19

LIST OF ACCESSORIES

1. 2mm patc( cord 6red8 """1 os"

,. 2mm patc( cord 6)l e8 " 2 os"

. 2mm patc( cord 6)lac 8 """$ os"

S# e$%e#& Te#&$'l'( e) P*%. L%+. 15

Documents

AB 19 Wzmacniacz o Sprzezeniu RC