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### EE 230 HW 5 Solutions Spring 2010

Course: EE 230, Fall 2011
School: Iowa State
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code clear Matlab all close all f= -2:.01:5; f=10.^f; w=2*pi*f; T = 5000./sqrt(w.^2 + 10^6); semilogx(f,T,'linewidth',2.5) grid on xlabel('Frequency(Hz)','fontsize',14),ylabel('Magnitude','fontsize',14) title('Magnitude set(get(gcf,'CurrentAxes'),'FontSize',14) versus frequency','fontsize',14)

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code clear Matlab all close all f= -2:.01:5; f=10.^f; w=2*pi*f; T = 5000./sqrt(w.^2 + 10^6); semilogx(f,T,'linewidth',2.5) grid on xlabel('Frequency(Hz)','fontsize',14),ylabel('Magnitude','fontsize',14) title('Magnitude set(get(gcf,'CurrentAxes'),'FontSize',14) versus frequency','fontsize',14)
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Iowa State - EE - 230
EE 230 Homework Assignment 5 Spring 2010 . Problem 1 Determine the output variable (in the s-domain) indicated. Assume the op amps are ideal.Problem 2 Determine the 3-dB band edge for the following circuit and plot the magnitude of the transfer function.
Iowa State - EE - 230
EE 230 Homework Assignment 6 Spring 2010Problem 1Consider the basic noninverting feedback amplifier circuit where the R nominal dc gain is given by the expression K 0 =1+ 2 . R1 A BWA a) Assuming the gain of the op amp is given by A1 ( s ) = 0 s+BWA Sho
Iowa State - EE - 230
clear all close all time = -2:0.01:2; % 8 seconds gives us 8 cycles Vin = [(4*time(1:99)+6),(4*time(100:199)+2),(4*time(200:299)2),(4*time(300:401)-6)]; % part a % Vout2 = -2*Vin; Vout1 = 10*(Vin&gt;31/20)-10*(Vin&lt;31/20);figure(1) plot(time,Vin,'b','linewid
Iowa State - EE - 230
EE 230 Homework 7 Spring 2010 Note: This homework assignment has a mixture of some problems that are quite straightforward and some that are quite challenging. Target solving at least 75% of the problems. Anything over 75% should be viewed as Extra Credit
Iowa State - EE - 230
EE 230 Homework 8 Spring 2010 (Note: Since there is an Exam on Friday March 12, this assignment will not be collected but solutions will be posted)Problem 1 The circuit shown is a comparator with hysteresis. In this circuit, assume R2=10K and R1=100 a) D
Iowa State - EE - 230
EE 230HW 9Spring 2010Problem 1Determine analytically and plot the transfer characteristics of thefollowing circuit if the Nonlinear Device (NLD) can be modeled with the I-Vfor VD 0I = 0characteristics D. The transfer characteristics of the NLD ar
Iowa State - EE - 230
EE 230Homework 10Spring 2010Problem 1Assume the transistor M2 shown below is characterized by the model onthe last page of this HW assignment. Determine IX.Problem 2If the Op Amp is ideal and R2=50K, determine the gain of the amplifier ifVCONT=4V.
Iowa State - EE - 230
Iowa State - EE - 230
EE 230 Homework 11 Spring 2010 Assume all MOS transistors have model parameters nCOX=100A/V2 , VTn=1V, and =0. Correspondingly, assume all BJT transistors have model parameters JSA= 10-12A , =100, and VAF=. Problem 1 Draw the small signal equivalent circu
Iowa State - EE - 230
% % % % % % % hw 12 matlab code of problem 7 % % % % % % n=12; VREF=1; VLSB=VREF/2^n; Ts=100*10^(-6); T=0:Ts:Ts*(200-1); % origional signal S=0.5+0.5*sin(1000.*T); % Interpreted voltage Vout=floor(0.5+0.5*sin(1000.*T)./VLSB).*VLSB; % Boolean output Boolea
Iowa State - EE - 230
EE 230 Homework 12 Spring 2010 Assume all MOS transistors have model parameters nCOX=100A/V2 , VTn=1V, and =0. Correspondingly, assume all BJT transistors have model parameters JSA= 10-12A , =100, and VAF = . For the data converter problems, use the CAD t
Iowa State - EE - 230
EE 230 Homework 13 Spring 2010 Solve any 5 of the following 8 problems. Problem 1 A 4-bit ADC has the first transition point at VLSB and subsequent transition points spaced VLSB apart. If VREF for this ADC is 5V, what is the quantization error for VIN=0.3
Iowa State - EE - 230
EE 230 Homework 14 Spring 2010 Solve any 5 of the following 10 problems. Problem 1 A 12-bit ADC with a VREF of 5V is used to digitize small signals with a quiescent value of 2.5V and a variation around the 2.5 V of 100mV. What is the SNR of the digitized
Iowa State - EE - 230
EE 230 Experiment 3 Fall 2006 Fundamental Linear Circuit Concepts Objective: The objective of this lab is to allow the student to investigate the distortion introduced by linear circuits, to enhance the concepts of transfer functions, to develop some reas
Iowa State - EE - 230
EE 230 Experiment 6 Spring 2010 Some Linear Applications of Operational AmplifiersObjectives: The primary objective of this experiment is to investigate some linear applications of the operational amplifier. The effects of noise on amplifier performance
Iowa State - EE - 230
EE 230Experiment 8 SupplementSpring 2010Nonlinear Circuit Applications Waveform and Nonlinear Function GenerationComparator ArraysThis laboratory experiment is for extra credit only. Extra credit will be given basedupon either partial or total compl
Iowa State - EE - 230
EE 230 Experiment 10 ECG Measurements Spring 2010 Note: If for any reason the students are uncomfortable with doing this experiment, please talk to the instructor for the course and an alternative experiment will be assigned. Although we believe this expe
Iowa State - EE - 230
EE 230 Fall 2006 Experiment 12 Data Converters Inherent Performance Limitations Purpose: The purpose of this laboratory experiment is to investigate some of the inherent fundamental limitations associated with the data conversion process. In particular, t
Iowa State - EE - 230
EE 230Spring 2010Experiment 11Since this is last lab,you do not need to submit the lab report . Instead write yourobservations for the lab and submit along with the releavant figures. A few basicquestions related to the lab are to be answered along w
Iowa State - EE - 230
EE 230 Fall 2006 Experiment 13 Data Converters Performance Limitations associated with Nonideal Properties Special Instructions for this Experiment Since this experiment will be conducted during the last week of the semester, a report for this project wil
Iowa State - EE - 230
EE 230 Electronic Circuits and SystemsRandy Geiger 2133 Coover rlgeiger@iastate.edu 294-7745Course Description Linear Systems Frequency domain characterization of electronic circuits and systems transfer functions sinusoidal steady state response Mo
Iowa State - EE - 230
EE 230 Lecture 2 Background MaterialsQuiz 1What is the approximate amount of data, in Bytes, that a single platter on a state of the art 3.5 inch hard drive can hold?And the number is ?135 298467Quiz 1What is the approximate amount of data, i
Iowa State - EE - 230
EE 230 Lecture 3 Background Materials Transfer FunctionsQuiz 2There are 4 basic ways for representing a timedomain analog signal. What are they?And the number is ?135 298?467Quiz 2There are 4 basic ways for representing a timedomain analog s
Iowa State - EE - 230
EE 230 Lecture 4 Background MaterialsTransfer Functions Test Equipment in the LaboratoryQuiz 3If the input to a system is a sinusoid at 1KHz and if the output is given by the following expression, what is the THD?VOUT = 2 sin(2000 t ) + 0.1sin(4000 t
Iowa State - EE - 230
EE 230 Lecture 5Linear Systems Poles/Zeros/Stability StabilityQuiz 4Obtain the transfer function T(s) for the circuit shown. T(s) = VOUT (s) VIN (s) And the number is ?135 298467And the number is ?135 284697Quiz 4Obtain the trans
Iowa State - EE - 230
EE 230 Lecture 6Linear Systems Poles/Zeros/Stability StabilityQuiz 5A system has the transfer function T(s) Determine the poles of the system.1 4+ s T ( s) = 10 7+s+ sAnd the number is ?135 298467And the number is ?135 28?6497Quiz
Iowa State - EE - 230
EE 230 Lecture 7AmplifiersQuiz 6Determine the maximum value of the controlling parameter, K, of the dependent source that can be used if the circuit shown is to be stable.And the number is ?135 298467And the number is ?135 28?4697Qu
Iowa State - EE - 230
EE 230 Lecture 8AmplifiersQuiz 7A nonideal transresistance amplifier is shown. Represent this same amplifier as a nonideal voltage amplifier.I18010400I1And the number is ?135 28?4697Quiz 7A nonideal transresistance amplifier is shown. R
Iowa State - EE - 230
EE 230 Lecture 9Amplifiers and FeedbackQuiz 7A voltage source has an internal impedance of 500. What is the efficiency of the power delivered to the load if RL=250?And the number is ?135 28?4697Quiz 7A voltage source has an internal impedan
Iowa State - EE - 230
EE 230 Lecture 10Feedback Concepts Basic Feedback ConfigurationsQuiz 8In what year did Black introduce the concept of Feedback?And the number is ?135 28?4697Quiz 8In what year did Black introduce the concept of Feedback?1927Review from La
Iowa State - EE - 230
EE 230 Lecture 11Basic Feedback ConfigurationsInput/Output Impedance Inverting Amplifiers Summing AmplifiersQuiz 9Determine the voltage gain of this amplifier. Assume the Op Amp is idealAnd the number is ?135 28?4697Quiz 9Determine the vol
Iowa State - EE - 230
EE 230 Lecture 12Basic Feedback ConfigurationsGeneralized Feedback SchemesIntegrators Differentiators First-order active filters Second-order active filtersReview from Last TimeInput and Output Impedances with FeedbackRINF=?R1 = R 1+R2ROF=?Exact
Iowa State - EE - 230
EE 230 Lecture 14Basic Feedback ConfigurationsSecond-Order Filters Difference Amplifiers Impedance ConvertersQuiz 10a) Determine the transfer function T(s)=VOUT(s)/VIN(s) for the circuit shown b) Is the circuit stable? Assume the op amps are ideal and
Iowa State - EE - 230
EE 230 Lecture 15Basic Applications of Operational AmplifiersDifferential Amplifiers Impedance ConvertersNonideal Op Amp Characteristics (if time permits)Review from Last TimeApplications of integrators to filter designTBP ( s ) =2 s2 +I0s+I0The 2
Iowa State - EE - 230
EE 230 Lecture 16Nonideal Op Amp CharacteristicsReview from Last TimeDifferential AmplifiersInstrumentation Amplifier Can reduce effects of dc offset if gain must be very large Must pick C to that frequencies of interest are in passbandReview from L
Iowa State - EE - 230
EE 230 Lecture 17Nonideal Op Amp CharacteristicsQuiz 11The dc gain of this circuit was measured to be 5 and the 3dB bandwidth was measured to be 600KHz. Determine as many of the following as possible from this information if it is known that the op amp
Iowa State - EE - 230
EE 230 Lecture 18Nonideal Op Amp Characteristics Output Saturation Slew Rate Offset VoltageQuiz 12The operational amplifier has a GB of 20MHz. Determine the 3dB bandwidth of the closed-loop amplifier.K0 =R2 R1And the number is ?135 28?4697
Iowa State - EE - 230
EE 230 Lecture 19Nonideal Op Amp Characteristics Offset Voltage Common-mode input range CompensationQuiz 13The operational amplifier has a GB of 20MHz. Determine the 3dB bandwidth of the closed-loop amplifier.K0 =R2 R1And the number is ?135 28
Iowa State - EE - 230
EE 230 Lecture 20Nonlinear Op Amp Applications The Comparator Nonlinear Analysis MethodsQuiz 14What is the major purpose of compensation when designing an operatinal amplifier?And the number is ?135 284?697Quiz 14What is the major purpose
Iowa State - EE - 230
EE 230 Lecture 21Nonlinear Op Amp Applications Nonlinear analysis methods Comparators with HysteresisQuiz 15Plot the transfer charactristics of the following circuit. Assume the op amp has VSATH=12V and VSATL=-12V.OUT R 2 IN 1And the number is ?13
Iowa State - EE - 230
EE 230 Lecture 22Nonlinear Op Amp Applications Waveform GeneratorsQuiz 16Plot the transfer charactristics of the following circuit. Assume the op amp has VSATH=12V and VSATL=-12V.And the number is ?135 284?697Quiz 16Plot the transfer chara
Iowa State - EE - 230
EE 230 Lecture 23Nonlinear Op Amp Applications Waveform GeneratorsQuiz 17An oscillator based upon a comparator with hysteresis is shown. If VSTAH=12V and VSATL=-12V, determine the peak value ofAnd the number is ?135 284?697Quiz 17An oscill
Iowa State - EE - 230
EE 230 Lecture 24Waveform Generators- Sinusoidal OscillatorsQuiz 18Determine the characteristic equation for the following network without adding an excitation.CRLAnd the number is ?135 2897?467Quiz 18Determine the characteristic equat
Iowa State - EE - 230
EE 230 Lecture 25Waveform Generators- Sinusoidal Oscillators The Wein-Bridge StructureQuiz 19The circuit shown has been proposed as a sinusoidal oscillator. Determine the oscillation criteria and the frequency of oscillation. Assume the op amps are id
Iowa State - EE - 230
EE 230 Lecture 27Nonlinear Circuits and Nonlinear Devices Diode BJT MOSFETReview from Last Time:Wein-Bridge OscillatorNoninverting AmplifierR2 R1 VOUTKo1R R231R C R COSC1 RCRC Feedback NetworkNonlinearity of Noninverting Amplifier Limits
Iowa State - EE - 230
EE 230 Lecture 28Nonlinear Circuits using Diodes Rectifiers Precision Rectifiers Nonlinear function generatorsQuiz 18 If a diode has a value of IS=1E-14A and the diode voltage is .65V, what will be the diode current if operating at T=300K?Id=?0.65VA
Iowa State - EE - 230
EE 230 Lecture 29Nonlinear Circuits and Nonlinear Devices Diode BJT MOSFETQuiz 19 Obtain the transfer characteristics of the following circuit and plot the output if VIN= -5sint. Assume the diode is ideal.And the number is ?135 298467And the
Iowa State - EE - 230
EE 230 Lecture 30The MOS TransistorQuiz 30Under reverse bias, all diodes will break down. Why is the break down often destructive?And the number is ?135 28?4697Quiz 30Under reverse bias, all diodes will break down. Why is the break down oft
Iowa State - EE - 230
EE 230 Lecture 31THE MOS TRANSISTOR Model Simplifcations THE Bipolar Junction TRANSISTORQuiz 31Determine IX. Assume W=100u, L=2u, VT=1V, uCOX=10-4A/V2, =0And the number is ?135 28?4697Quiz 31 (solution)Determine IX. Assume W=100u, L=2u, VT=
Iowa State - EE - 230
EE 230 Lecture 32Small Signal Operation of Nonlinear NetworksQuiz 32Which region of operation of the BJT corresponds to the Saturation region of the MOSFET?And the number is ?135 28?4697Quiz 32Which region of operation of the BJT correspond
Iowa State - EE - 230
EE 230 Lecture 33Small Signal Operation of Nonlinear NetworksQuiz 33Assume a one-port device has an I-V relationship given by the equationI = 5V 2Determine the small-signal model of this device at V=2V.And the number is ?135 28?4697Quiz 33
Iowa State - EE - 230
EE 230Lecture 34Small Signal ModelsSmall Signal AnalysisQuiz 34Determine the small-signal Model for a MOSFET with W=10u, L=1u if operatingwith a quiescent gate-source voltage of 3V and a quiescent drain-sourcevoltage of 8V. Assume uCOX=100E-4A/V2 ,
Iowa State - EE - 230
EE 230Lecture 35Data ConvertersQuiz 35Determine the ratio of the small-signal transconductance of a BJT to that of aMOSFET is both are biased at a quiescent current of 1mA.Assume uCOX=1E-4A/V2 , VT=1V, W=10u, L=8u, =0, JA=1E-15, =100,AE=100u2 and V
Rutgers - PHYS - 418
Lecture Notes on Structure of Matter by Mohammad Jellur Rahman, Department of Physics, BUET, Dhaka-1000Lecture 5: Crystal planes and Miller IndicesIndex system for crystal directions and planes Crystal directions: Any lattice vector can be written as th
Iowa State - EE - 230
EE 230 Lecture 36Data ConvertersReview from Last Time:Data ConvertersApplications: Dominantly the interface between the continuous-time Continuous-amplitude physical environment and a digital system such as a computer, microprocessor, microcontroller,