Module —3 Multistage amplifers Cotcaced cyttemt The two fort sytemt oppwadh is perlcularty Creful for Carcaded cys NoieVian \ aie ka = “Ut, cl pak ae, fick He ; o. Bem Dy Be WH Ha es Don=** ia tf U4 Oak, In above fqure Ay Ayy~-~ Ave OF 2 voltage Gru Bh each Stage under loaded conditont, hed ic Ay it determined with ie input impedana to Ave acting as the [vad on Ava: The total gain % system clebesnied bs . Aye = Avie Avy: Avge es Ava and tetad torent gain fe givin by, | Aty = 7 Avy ZL Re K The fue stoge systern shown in Kaure employs a brancictes emitter- follower con kk qusabion Por te @ Commen-bare ” Corfigarattin to ensure thal He manimuns peitentage A ta applied signaS appeats at the inpud terminals 9 ter comuvenbar amplhier Th que No-load nallagsvalis ex, provided frre cach syttem, with Re excephon ] 2; 4 2p for the emi tlere follower, twohich ate loaded Values - Petermute ofS. Marihal Asst. Professor, E Dept. SGBIT- Belagavi,“i Analog Electronic Circuits-18EE34 agibe waded gain Por each cage ‘the telat gain for Me system, Ay £Ay, c) The tla cewent gain Por “He Syebenn : “the telat gain tor the Syetem WC tRe emitter follower Con Bauration were removed, Sol** @) For emiller “Goiloiser contrquaalion He tooded game it, Vo, 7 Se Ava ve OT Baht By Ay Av x, a Ph ‘ cote Ve 1, Bie T= 20 Ardy aN ee & Avee = 0-684 Vig B® fev Common-hase Coufiguoaton Nea = Re AW Yio = Bde (248) Vip Pet Poo gard Sle = U7 ay Vi2 Ay = WS UTIAnalog Electronic Circuits 1k bY Aya 2 Nu Ave > Corbee) Chara) = Lowe Aver 2 Ay = (lo) C109) Dik Ms (ford He ae Aye 2 2 Crown) (EY O Mg = Ave i Crows) (OE = 123-41 < r Jb Ore d) Ne Cie Ve F SE ME 010M Droid Sed le Mi coms Ve ; ; Vo - NO ME = yap x 0028 Awe ma > VM = 7 by, = a4 SGDIT Relagav, ssCaseode connection Th case cascode conbiquration he Collector oy the leading tramicter ** connected to Fe eratter 6} the Cellowing traunctes, Tre trench currangements provide a “reldbivdly lagh- trpat tonpedance with vw voltage gain fr He Pirst stage te enguse dp be minimum, whereas lent igh the input miller Capacitana the following co loge ipvid es an excell Frequency retpouse There are too powible rrmngennh A carcode connection at chown below, Ne :abeulale 1 Wer lwocl © volane gain for Use Code | for Une Caccad CouP toro bion chown bed, WW vee 2 IRV { (Coy Cooete BrP, oR? Apa eon col” Te de analyse maul in G, Te, =F wm Ver aay, Voo™ 1a kv +o oor Lr RS2 dom 5 per fe aE fe 5 AR Bam ihe wading oy Of Hee topo inpedance Me Qtr Abe C6 eufigunabion “oe. ol Awe nds eats @ secre lage pen du, = 26S Ayo oye * GEA Vo Hege us, dotal gain f Ave Ayx Ava eS ce iceo)® 26sDeakingtor comme rious The fnpuk ienpedanee a the circuit can be Trnprove d by direct Coupling o two chager Oh emitter follower ampliber, The Cascadid comnedion AY two emalker Pollowerr ts CaUed de Daalingtor Counecttow - +Vie Atsumt Bat thre loot ruickance Re WS cuts Hah Rrhopcorl, we Can ute Gpyroxionate analyse melted foe second stage, A watinnate he patemaber avalect rp cay Cirenit for tommrons erie Cirpiguimten Te at Sheen blew Bente dantingten connection gain prides 0 Cea Bos fils each grausicters & Rp if a vole pr £ Pe Ox gain oh total yarn oF clas inate cree| | Evatt fellewer comfigeaatm the Pimaay tenpact wating the cartingten coutigeRalin team input impedance much Wager Han that oblained | with a single- transicher nebwork. NCC O¢ Bias Tp, 2 Year TvasT “een Ppt PpRe c T, Ley = Pot pote, = PCP) = pi Po 7H, > Tes porter * tee bvcutsi £ athe collects volbage potty -treaaistors | Veo Var Vee erhe ember VOLERE oy Ge Veg = Leste . 5 Veo t Yet Maes Ver 2 Vem THF ne Veeg = Vean Veo ® Meer = Vee VeoI, = Cpt) CpA0 ( fo 3; Fiat fife Cottat Ape Te = Prt) CPD Fs Ti Pp t PiP2 Pe Ascume — Br, Py >? 4 A= te ~ Pifoho xj Pg t fr Po PF or jay = _PnPs Spt pp Pe Vor Toft vy = Li (Pall?) AYP Rs Ili = Pall Bore = totais _ = = Pat Pore eve Bee = ar (Lg, ) Ave ye TCP) Cre - (Sea) [ Me)fom Prune We Can wie 2is > Bs (Feat Re) 2yr Be (re, 7) 2.2128 (revaCoert PP] Rep? Yer > y= i Fey Pe a) as Porter? oboe 24, 2 fr hae oN) 2) Ac Coren’ gain ow “aN sl vs vil prey paves FE with solving for output cedar? Byt By, thr Te = CPot) Toe Don 2 Pilot te, = (Bt0T than Tye CBst) CRA For aging compet Lp, Re 1; Rat 27 clivider rule on Fopab dirt Re _ Ty Rpt PiBoPeTh obvve peiveleat ciruit Lp BO At bonta KEL will verutt Tot (Bot) Zig 3 Te > To = Te-CAotd2 0 Arplyng KVL ak out St toop — Le, Pre, — Tos Po Fer Vo =9 in Vo HoT Pitas F Top Ba %en Sih Tho = (8: +DTp, et Vo = HZ ite #— CPt) Ty, Pavey by Simpl: Kater tue pe Dye [Bet 2F oT crated pores |** ving back - a = @it!\Vo To= Te-CPot0 To. > Te C08 [Ot | a,2 4 Bt) CPotDVo Pe Bite t (Put? Bo%es cage Meg Pitas OT Be Bite t Rife Me> -~ a = 7 Tawa he Pape pib> es — t erg Vee pe Cobich clfines parallel uvctanee wetionye te + pa Peuyg: PE Ze PeRe >( at 4%) volt age divider ampl Ker Nobe that ture fa collectry Tevelnne oe & the emitter teaminale} olabyter cred is Counted to grown fer ac conditions Boz Bi Pe > Vee LémV ~ Pe Nee eye Va> yp: Teo PuPo . Ate. 4 tee Ve = VarVoe £,5 "89 i - Ve . Tpe- se wus 2 v Re Te Taz teAc input lng dang i eanaee 2; = pi [vet prt) £2; > Pr NRa 2 AC Current gain i Bo Th EB Tp = Pde, + Po Teo Tog = CA APT by Toe PTet Pr CetDT ay ee 1 th + pC 64 ox <5 Bp, + polBID mF fa = Bt Po Pia p(t Ps) y PipD cB Pei NL Pits = PO & Peat 2 ' ste >(% ze | Ai = a (3 Ti — Po Pi Nes As BMGs A Zi= Loe Ay = Yo = — Bote =A: (4) Ac output impedance bots Fon i the outpab rretistane &} tranacby a‘gnat (-T Soure “ Sanngling Nebwevte 4 Nolleae camplivy ZV tmnt — cannpliny Fercthace Netw Vee Bye pia bat oh Pr Seectback Ra cler Mixer Nitame Ma ee counettier euspee commen valk oo Gan tt le ZL. 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Than amplifier hat a bendwidéh o Bv0k He £ voiboge gain oy lov, what will be He new bandwidey and gain vif (ols negative ferdback + intreluted 2 wohal will be Tee gain bandwidth produck bref after fecclback 2 what shoud tee Hr orncunt OL Pecthack (£62 band wider tsb be Linaitest € BoveH2 FS Aye voluae Poo 1 & A=loo = 09 abe bandwidth of amplifier voit Peedinarts 2 5 - £ Bug © CU And Pla ace pisomthy fy >> FL Buy Ste Bug = Crt A mS Be Bus Bust = CO® Copeet) «aes = BBevted. Canin BD prreluct wot facto = Ay Bee = loom 42 = 30406 watt C400. Produt wilt ford loa 2 Ap K Pog = Froak Zao = 30x06 To lms} bandoth 4. Loves. Bop = C14 Ania PCHFiiot Av amp her wilheub Pacdlaack gives 2 output 33 Sov tnt Cy Segond harmonic Avetor ton when the frput is oo v. 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