Chhattisgarh Swami Vivekanand Technical University 2007-4th Sem B.E Electronics
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B. E. (r -arth Semester) Examiuatiou, Nov.-Dee., 2007
(EEE, ET & T, IT) - ANALOG ELECTRONIC CIRCUITS
'Time Allowed : Three hours
Maximum Murks : 80
Minimum Pass Marks : 2H o
t\'Ue : All questions are compulsory. All questions carry equal marks. Any missing and misprint may be assumed suitably.
I. '(a) Slate Millers theorem with the aid of circuit diagram.
IO
(b) Find hre in terms of common base /i-parameter. A
(c) Find out ;;c expression of At & R0 in case of Darlington pair. 10
328413(28) HO
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I'M Hi,- Okih liudtiiii .1,. -/,//. i,_ .1,, 10 |
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() l)uw ilk* Ii>bnJ rt-nvixtcl fora rn nsisuit m (\uiuihjii h'miftcr Coiiliguulion 2 |
(b) Comment un ihc validity ol xonodcl !
(c) Oenvc th< expansion lor R, S. i\ lor Coinimm Emitter conHgurjtion with rciis(ivc IojJ. 10
Or
Given the following transistor mc;isui-.mcit( node al Ic * $ mA, I'd " 10 V ami al room tcmjhrr-ilurc-
h/e - 100 hie ' bOOil
t
(/c) m JO at 10 MU/. C,. i pF
Find /,. lu
Mcmiim ilk* ioukc* oJikjim: in iraimitur gucim
(10 l>tuw two iiagc RC couplctl amplifier and explain iu working.
(c) Is }'H for two stage greater or smaller than/ for a tingle siagc. For two identical siage what U /,)//,. ' 1C Or
Three ulciilical cascmlc Mages luvi an uvciull ujtv.t JdU frequency of 20 kll? apd lower 3-<ilJ lVc(|icin y of 20 Hz. What are /t and fu of caeli jLiyc As.su ;>c tKHi interacling slaves. 10
(;.) Stale iIk* advantages tit ik'fJiive Iced luck 2
(b) Dcscribc tlvc four topologies of negative I'caltuvk amplifier. <t
(c) Find out the expressions for Rif and Rc'ffot tlie FFf common jourcc .amplifier with a source resistance X. 10
Or
Po* the circuit shown take Rc * 4 K, R' ' 40 K.
Rt - 10 K, hie I-1 K. life 50 and htv hoe " 0. Kwd (a) Ayf. (l>) Rtf and (c) Ro'f. W
v//
S. (a) Wliut urc the (iwiwbtwks uml Kilvnulu ol iiomIiw
feedback? ji
(b) Describe die condition lor sumnmcd qwillnliou in omit1
of simtfoutal osoillulnis l
(c) Derive (he expii'ssion lui linnwmy ol oK-illutiun lit ci*c of RC plmso*sliift owillnloi. 10
Or
Draw nutl explain flu: woikiuunfColpUh (mil llmtliy oscillator. 10
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| Earning: Approval pending. |
