Input Values - Introduction to Microelectronic Circuits - Solved Exam, Exams of Microelectronic Circuits

Download Input Values - Introduction to Microelectronic Circuits - Solved Exam and more Exams Microelectronic Circuits in PDF only on Docsity! UNIVERSITY OF CALIFORNIA College af Engineering Department of Electrical Engineering Professor Oldham ‘and Computer Sciences EECS 40 — MIDTERM #1 29 September 1999 Name: SOLv Yq Onl Last, First Guidelines: 1. Closed book and notes except 1 page of formulas. Fall 1999. Student ID: TA: © Kusuma Chang 2. You may use a calculator. 3. Do not unstaple the exam. 4. Show ail your work and reasoning on the exam in order to receive full or partial credit. 5. This exam contains 12 pages plus the cover page and 2 sheets of scratch paper included at the end of the exam. You can remove these from the rest of the exam if you wish. Points Your Problem Possible Score 1 20 2 15 3 15 4 20 5 15 6 15 Total 100 » DBE BR 103 1073 10-6 10-9 19-12 = 10° Problem 1 “Static Logic” (20 points) Fill in the logic values in the table below for input values given. Note that the value for “C” is given as an example. » s{ eh > » so Ose pt > Dee H Ae— Intermediate Values and Outputs for A = 1, B=0 c;}D/E;/FI|G/HI I Fill in boxes > Value] 1 O1o (zero or 1) 0 Oo | \ 1of 12  vy= —!OV Vv we 244 ev FindvyandVy = ~Vy = AOV ° lOKF 00k || Look Rap = 60 Ka -50 HA = tt 1.9K a) ima) @2ma @)ima x Vy= 18 vy 13K =7.&V 4of 12 Problem.3 “Initial Conditions” (15 points) In each of the problems below, find the value of the current or voltage just after the switch moves (t= 0*). (What is requested is just a numerical value, NOT an equation or function of time.) closes t=0 es te a) Vo == 0p 20K Y jv ipe DO pa 4 30k pre-charged to Vo=1V b) Vo = 4 Vv D> PRECHAROE = IV closes 0 ae iy ©) IK ij = 0.57 mA Cuda vier <0 SOL ,=-kLwA 2 100K X 100K + d) rivet by Vy= ev Cc opens. Fon t<O Vyt Ver 2%y3 2av 30 FoR tO ay took X jm04 av Tt Sof 12 Problem 4 “Nodal Analysis” (20 points) a. For the circuit below you are asked to write sufficient equations to find the unknowns. equations into the space indicated, Do any scratch work on the page opposite. Do not solve. Write final equations here: daa — + Tee + pve - 9 LZ i= a Vp Va. + Tee 4 Mbn9 . VpaVe 9 Ra Rg Re. whe Vb -Ve Veo - Ve Vpp -Ve 5 ; RZ BS Ke 7 of 12 Problem 5 (cont.) 10 of 12 Problem 6 (15 points) a) Find the Thévenin Equivalent Circuit of the following: /R A 5 | B Su Pen Pos Hon) = \ Asys Vv Vee YA x 3k + 7 5¥ kS Ry = (kim = OSK b) Find the Norton Equivalent of the following linear circuit: A Ze 7\/ Ty 1 I Ao—+— | ! | IR I | 3k Dama | se Oly I I B p> 1_1 , \ | ~~ oa ee | I 2 WW- 1 ae = W-t2V ww | a. = -3BY a a Oe “Bk Qy = Roy TAK lav ce) Find the power supplied by the Rolage source in the following circuit. 6K 6K ke — on Q by v¥' 3K nv @)3ma = “or” oy Ver = OS x Ry = Power out = _"~ 4 We ow ab mAxi RF gmaKiav’ It of 12