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Electrical Engineering 42 - Spring 2001 - Oldham - Midterm 2

Electrical Engineering 42 - Spring 2001 - Oldham - Midterm...

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Unformatted text preview: UNIVERSITY OF CALIFORNIA College of Engineering Mann-lentoffilectricai Engineering B , fl .. r and Computer Snenees L rift/i i i t, HILL .3 Professor Oldham W if 57— Spring 2001 W EECS 42 -——- MIDTERNI #2 5 April 2001 Name: Student ID: Last. First Signature: Guidelines: Closed book. A 3-page summary with formulas is provided at the end of the exam. . Show all your work and reasoning on the exam in order to receive credit. 1. 2 3. Warning: Some problems will be graded with no partial credit, so check your answers. 4. You may use a calculator. 5. Do not unstaple the exam. 6 . This exam contains 5 problems worth 20 points each, and corresponding worksheets plus the cover page and the 3-page summary with formulas. 7. Please do not ask questions except to point out possible errors or typographical mistakes. | E 5\/ ‘ I I draw circuit here QT: q96v1 2mA {VIM 2V | | lNI I | % i?“ 1213\M I ' ‘ . drawcircuithere Vr—Vocn all {fish/IA +Iowg%vo:o\h IM res‘ Vi 1V VG. - . 4‘ r XII-“I: CW @2wfi%m W EMA “a...” 1 VC.’ {Sh/+3 " 4V (e) 1% 5 098m um and SW 2V VFW—- {1: cmM wet 1M QT "" [M - VIA/at, = a“ o? LIMA MMJWOW "‘4 VF -VE I , INA z> Var“: plmAflM "M e: __ lv (d) PT: opem 5N (ea-’0 DW’ENDENT coieQ'EN‘t ' $0090; mart—26 '1 Jfifi : 2 It 21w: flak waq T‘Cd‘ cum; 0% W * ~ mm ‘Eiuok L 321,: A" _______ VTcS-‘r : ‘ $VK‘E \ ": O E :BWI/‘L 6—! ,5 _'_ . é L" {WA’SOO 'IMLL H‘ 32k 6") %2{:%N QT; \/3M+\_F 35553—0“ T \{T' ,7.ch 5%: wv-h‘e' V4090“ 5'an +0 ‘Q-‘Iudk K 2of10 @FV{)/lfif ”XIX/2t“ ‘0'3._\/1;< dVK/2kzo :> \fx: 2 V MW As you know, sometimes two quite different circuits are equivalent. Consider the five following circuits. Indicate by circling which circuits are equivalent to each other. NOTE: Do not guess; you MUST actually demonstrate that the circuits are equivalent. If you do not show the basis for your assertions of equivalence, you cannot receive credit. (Please do not ask a question of how to dem- onstrate equivalence—you are responsible for knowing that.) The grading will reward for correct answers with apprOpriate basis for the choices and will subtract for wrong answers. (a) A _.____,-——- E a F F: A 560 D a» A a B _____ __.. C F F:- AB +60 D 25 :: §+§+Z+5 OeMargmir WC __ z W Dal/Iowa’s We (c) A 33 AB B _____.. C F = .4360 D 55 (D (d) A M : cmfii-B')C5+D) D GE (e) ' A .... 2 F -: Ari-+3 i‘ 2+0 D M Marya"! Wk m2 ee 7/1.; Man a WI? émnae ea gm 4;, m Me. A: :Am, 5; «pr/m Pe/Vlargmk, We can find 19kt whens art WVWW‘. To fiat ff of 13mm fa 194:2. Mar 'fiw. We am a; Mentor We) fart affgments (mfeiamf/ei A :3 c9 (Feed (RENEW) O $9 .. 0"[37 a, {7 C, e are W'Vdfifif Han/8W, {We Must Peep/c (Ami emf}! faé/tSJ 1 Mil aka {49 {am mflflmfiy 0! “((46:46, {OM (Mm) w full amt/L only 0 miter! $th9 are a“ 0. 40110 (a) B m F 0 0 I i _ 1 I 0 I I I 1160 -mm 0 III...“ 0 i 3 III-II- O O -——-mz-- “EC 1 Inn-m l 0 1 1 —-m o z 9 SEE. L‘cd‘l'fa! n OfLT'aLT'f-look 1%“ (b) PM,” F: EEC + A EC (0) '5‘” ‘3‘? c__d_D=*—ED=V— L F (0“) Min" WWW” ’- er= a.” c, B "“' C. ‘53:) - Bof‘lfl -r W (3) Consider the circuit below: CK OI Fill in the value for Q in the timing diagram opposite. But to show your work, you must also show values for G and H. Note that the initial value of Q is 0, as shown by heavy dark line on the timing diagram. Ignore stage delay. 1:1ch 6 (JV Ladleagawt Yawk , <3 :: Y/Umuo ac 11—51%} H by loo-18mg 9+ Ver (K , H : V/UIQNDCK Philly G bY @WQljzzkfi +l’lG Final/I'ledo PM) ((0)05 ' 1+ is slim'lw +0 an 3.2 PI}? Flop (b) For the same circuit, fill in the table, opposite. 6 CL (WAG) \G: 86+‘ (moi H) \H :* fesei' c, :H SI )- HOIJ 1114 w (a) 1 X 0 ..................................................... I . ' _f I r 1 1 g '- Y ‘ 1 ' i 0 L ...................... 1 ........................ 1 \ 1 1 1 1 f I 1 CK 1 1 ll 1 1 0 ....... ' _ ....... ' ................................... 1 1 I 1 1 1 l ' 1 e : 1 i i . i 1 1 1 I. i 2 G 1 i 1. i . i , l 1 0 ...... 1 ....... 1' ,,,,,,,,,, l ......................... 1 ...... [i ....... I ............ l ........1 ........... 1 ........ 1 1 ................ JE ....................................... ‘ 1 i 1 - 1 f I 1 '. f 1 1 i i 1 I 1 v 1 1 l I 1 1 1 1 H 1 1'. 1 . r 1 l. I 1 0 ....... “fun“: ........... 1 ............ 1......"I ............... I‘m] ............ ( .......... .1 .......... E ............l .............. 1 ....................................... 1- E- ! 1 j 1 1 1 I 1 1 l._ 1 - - 1 i I Q 15 1 - 0 .. ‘ ——--—- ........... 1 ............... i ....... 1.-.. . 1_ 1 ......... 1 .................. 1 ................................... (b) The table below IS intended to show the value of Q after CK goes high. Fill in the‘ Q” column with 0 or 1 or “001d”. ' (a . | (a) ) In 'er ”new Range, V0”: 5 Vm Vow-(l) ~ Bufi' high VCLL'L ca 5 V QMCK Low V‘CULL C5 0 v. 30 fo» 5" VM’ tv, (SK/M75) 2'; Vawt = ’3- VM (0 < V151 ( II) 0.5 l ..5- 2 3.5 3 3.9 4 1011530) 0 ( Vin < 0) 03' Su‘nce Vin (1:6. 0) Is no‘t eruvhr sPe cK—fied ‘ We awe Sn“. CVEDkl't for head- We QMQS : etfizhev Vin =0 f“ to: w vcn= 2 fov tco ; Vx -§u£'toW5 Vin , bw‘t Limiteck EU} "EM 'Nrj'h /Low Y‘LLL, ; Vmfl Wm ska». 1mm stunt becmge n—t film 12¢ cement-t. 71= R~C = 0.5 ASP—c. (b) M) cw (1, Vomfl} (VJ 100MB ...
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