anonymous
  • anonymous
MIDTERM A linear circuit is shown below. Pic: http://i45.tinypic.com/206flvd.png The elements in this circuit have the following values: R1=200Ω, R2=200Ω, R3=100Ω, V1=5V, I1=0.001A and I2=0.005A Determine the potentials at nodes A and B, assuming a ground node as shown in the figure. (a) What is the value of voltage vA in Volts? (b) What is the value of voltage vB in Volts? Now let us determine if the answers you came up with satisfy the laws of physics. What is the power (in Watts) dissipated in resistor R1? What is the power (in Watts) dissipated in resistor R2?
MIT 6.002 Circuits and Electronics, Spring 2007
chestercat
  • chestercat
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anonymous
  • anonymous
What is the power (in Watts) dissipated in resistor R3? What is the power (in Watts) coming out of the voltage source V1? What is the power (in Watts) coming out of the current source I1? What is the power (in Watts) coming out of the current source I2?
anonymous
  • anonymous
MIDTERM 2 For many purposes of gate design, we can model a MOSFET used as a switch simply as as an ideal switch and an "on-state resistor" RON. This is the SR model. Assuming this model for the MOSFET, consider the inverter in the figure. This inverter is intended to be used as an element in a logic family with NAND and NOR gates. Pic: http://i50.tinypic.com/4kgxf9.png The static discipline required for this family is: VS=5.0V, VOH=4.5V, VIH=4.0V, VIL=1.5V, VOL=1.0V. What is the low noise margin (in Volts)? What is the high noise margin (in Volts)? What is the width of the forbidden region (in Volts)? Suppose that the threshold voltage for the MOSFET is VT=2.0V and RON=19000.0Ω. What is the minimum value of the pullup resistor RPuI (in Ohms) for which this inverter can obey the required static discipline? Now, consider the NAND gate of this family. What is the minimum value of the pullup resistor RPuA (in Ohms) for which this inverter can obey the required static discipline? How about the NOR gate of this family. What is the minimum value of the pullup resistor RPuO (in Ohms) for which this inverter can obey the required static discipline? Assume that we implemented this family with the minimum pullup resistors that you have already calculated. What is the maximum power (in Watts) consumed by the inverter? What is the maximum power (in Watts) consumed by the NAND? What is the maximum power (in Watts) consumed by the NOR?
anonymous
  • anonymous
MIDTERM 3 A nonlinear device Z has the i-v relationship shown below. Pic: http://i50.tinypic.com/e9vgp5.png This device is used in the circuit shown below, where "I" is the value of the current source. Pic: http://i49.tinypic.com/2zs741c.png Assuming that I=10A, what is the value of the voltage vo (in Volts)? Now assuming that I=−3A, what is the value of the voltage vo (in Volts)? Finally, for the last two parts assume that I=5A. What is the value of the voltage vo (in Volts)? What is the value of the voltage v1 (in Volts)?

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anonymous
  • anonymous
MIDTERM 4 A startup company TransGadget has invented a new type of MOS-gated transistor called ExtremeT. The symbol for ExtremeT and its terminal voltage-current characteristics are given below: Pic: http://i50.tinypic.com/2lc0n05.png TransGadget wants to determine the usefulness of their invention by examining the large-signal input-output characteristics of two amplifiers built using ExtremeT. They hire you to figure this out. First a source follower amplifier is built using ExtremeT, as shown below. Pic: http://i47.tinypic.com/211nj9y.png What is the expression for vOUT in terms of vIN, R, and b when vIN is greater than 0V? ExtremeT is now used to build a different type of amplifier which uses two transistors as shown below. Pic: http://i50.tinypic.com/rmmn4g.png What is the expression for vOUT in terms of vIN, VS, R, and b for this amplifier when vIN is greater than 0V?
anonymous
  • anonymous
MIDTERM 5 The startup company TransGadget has also invented a MOS-gated transistor called SuperT, with the symbol and terminal voltage-current characteristics given below. Pic: http://i45.tinypic.com/2sacjs8.png Engineers of TransGadget build a common source amplifier using SuperT as shown below. Pic: http://i47.tinypic.com/xpa7hd.png Here, VS=80V, R=1.5kΩ, and the transistor parameter f=2mAV3. The amplifier is biased with VIN=2V. What is the dc operating point (bias) output voltage VOUT (in Volts) of this amplifier? What is the small signal gain (vOUT/vIN) of this amplifier when it is biased as above?
anonymous
  • anonymous
PICTURES TO MIDTERM 4 Pic 1: http://i48.tinypic.com/v46lxf.png Pic 2: http://i50.tinypic.com/2lc0n05.png Pic 3: http://i50.tinypic.com/rmmn4g.png
anonymous
  • anonymous
MIDTERM 6 The circuit below contains two dependent sources: a voltage controlled voltage source and a voltage controlled current source. Pic: http://i47.tinypic.com/71oj03.png The circuit elements have the following values: Vin=42V, R1=4Ω, R2=4Ω, R3=7Ω, A=1.5 and B=0.125. What is the value of the current i1 (in Amps)? What is the value of the output voltage vOUT (in Volts)? We wish to create a Thevenin equivalent model of the above shown circuit as seen from its Output Port. What is the value of the Thevenin equivalent voltage as seen from the Output Port (in Volts)? What is the value of the Thevenin equivalent resistance (in Ohms) as seen from the Output Port?
anonymous
  • anonymous
I'll try solving most of it myself and on request post my answers. If anyone is up to joining me,you're welcome to do so and thanks in advance :)
anonymous
  • anonymous
every one post the answers you get here ill be adding sum when im done iswell
anonymous
  • anonymous
ok
anonymous
  • anonymous
pls check this if it is correct 1)va=2.84v 2)vb=0.68v
anonymous
  • anonymous
HEy @jayapavan what are the other values u got????
anonymous
  • anonymous
solved the first question complete
anonymous
  • anonymous
the values for everyone will be different so give the final answer in terms of different parameters and then just substitute the values
anonymous
  • anonymous
@saadixyz formulas plzz
anonymous
  • anonymous
midterm2 What is the low noise margin (in Volts)? VIL-VOL=0.5 What is the high noise margin (in Volts)? VOH-VIH=0.5 What is the width of the forbidden region (in Volts)? VIH-VIL=2.5
anonymous
  • anonymous
@lucky12345 , The midterm 2 question absolutely same as the question that was given in Homework 3 named as "H3P1: A Logic Family "
anonymous
  • anonymous
ya but there are some additional parts give answers to question in the i hav given it will be much simpler for everyone to understand
anonymous
  • anonymous
used a program...
anonymous
  • anonymous
@saadixyz , which program ?
anonymous
  • anonymous
mid term 2 Vout=Vs*RON/(RON+RPULLUP). Vout is lower than VOL rpull= 4*r0n for inverter , nor rpull= 4*r0n for nand
anonymous
  • anonymous
@saadixyz which program you used
anonymous
  • anonymous
@lucky12345 , Bro , midterm 2 is same as homework question.
anonymous
  • anonymous
midterm 1 answers?? plz give the formula of the answer
anonymous
  • anonymous
helloooo??
anonymous
  • anonymous
yes
anonymous
  • anonymous
q2 last 6 six questions answers plz
anonymous
  • anonymous
@saadixyz : wat r d ans for last 3 que of MIDTERM 1????? or formula?????
anonymous
  • anonymous
q1:r1=50,r2=50,r3=100,v1=4,i1=0.0001,i2=0.001 answers 2.9775 1.955 0.0209 0.0211 0.038 0.078 0.000195 -0.00195
anonymous
  • anonymous
my values for question one are this any help The elements in this circuit have the following values: R1=1000Ω, R2=400Ω, R3=600Ω, V1=6V, I1=2A and I2=2A
anonymous
  • anonymous
@hejå: dan dis ans ll not work 4 u.......
anonymous
  • anonymous
q2:vs=5,voh=4.5,vih=4,vil=1.5,vol=1 0.5 0.5 2.5 44000 88000 44000 4.45e-4 2.27e-4 5.05e-4
anonymous
  • anonymous
@rvamsi: can u tell me how did u get ans of last 3 que of Q1???????
anonymous
  • anonymous
@rvamsi Vt=? Ron=?
anonymous
  • anonymous
q3: 1) 2
anonymous
  • anonymous
q3: 1.) i=8,vo=2 2.) i=-3,vo=-1 3.)&4.) i=3 1 2
anonymous
  • anonymous
@rvamsi : tell me d formulas
anonymous
  • anonymous
good work but @rvamsi tell me the formulae 4 all u r answers
anonymous
  • anonymous
@rvamsi , kindly post the formula/expression as the values are different :-/
anonymous
  • anonymous
@machu , Thanks ! But kindly post the formulas as the values are different. If you will post the formula, everyone will be able to solve it
anonymous
  • anonymous
@machu plz help r1=r2=100,r2=200,i1=0.01,i2 0.001
anonymous
  • anonymous
@chanakya2346 : 2.84 , 1.64 , 0.023 , 0.023 , 0.004624 last 3 still remain unsolved
anonymous
  • anonymous
ty akash97
anonymous
  • anonymous
@akash97 do u know the formulae for the last 3 question of mid 1
anonymous
  • anonymous
q3: replace the zener diode with a resistor and find voltage across it
anonymous
  • anonymous
@rvamsi : tell me da formulas for MIDTERM Q1 nly
anonymous
  • anonymous
plz post the aswers in terms of formula not the final answer in terms of values
anonymous
  • anonymous
@akash97 the ans u have told was wrng
anonymous
  • anonymous
@chanakya2346 : wch 1???????/ Ma ans r marked r8........
anonymous
  • anonymous
@rvamsi question 2 plz
anonymous
  • anonymous
Suppose that the threshold voltage for the MOSFET is VT=2.0V and RON=10000.0Ω. What is the minimum value of the pullup resistor RPuI (in Ohms) for which this inverter can obey the required static discipline?
anonymous
  • anonymous
@akash my values are r1=r2=100,r3=200,i1=0.01,i2 0.001.....wat's u r's
anonymous
  • anonymous
0.0015, 2 -2
anonymous
  • anonymous
@chanakya2346 : sorry .ma values r r1=r2=200 & r3=100
anonymous
  • anonymous
@akash97 if you know the formulae plz tell me
anonymous
  • anonymous
multisim program
anonymous
  • anonymous
Please , tell the formulas ....
anonymous
  • anonymous
dude tell me the values i'll tell the answer
anonymous
  • anonymous
and tell me the formulae for question 2
anonymous
  • anonymous
@saadixyz , yaar see ! if you will post only the answers not everyone will able to solve it so therefore kindly post the formula so that everyone can solve it :)
anonymous
  • anonymous
@chanakya2346 : power in R1= (vs - va)^2 / r1......... : power in R2= ( va- vb)^2 / r2 ......
anonymous
  • anonymous
@saadixyz r1=r2=100,r3=200,i1=0.01,i2= 0.001
anonymous
  • anonymous
@saadixyz , The midterm 2 question absolutely same as the question that was given in Homework 3 named as "H3P1: A Logic Family " .
anonymous
  • anonymous
@saadixyz : r1=r2=200 & r3=100 I1= 0.001 i2 = 0.005 tell me d formulas for last 3 que of MIDTERM 1
anonymous
  • anonymous
@akash97 , this is what I am continuously saying that someone should post the formulas :-/
anonymous
  • anonymous
@chaand.i : i DID IT MAN nw
anonymous
  • anonymous
@chaand.i the values are changed
anonymous
  • anonymous
@saadixyz , yeah ... but the way of solving is same as it was in homework 3 !
anonymous
  • anonymous
@akash97 , congrats dude :) ... what are the formulas you used in all the parts of QUESTION 1 ?
anonymous
  • anonymous
@chaand.i can u refer me somewhere
anonymous
  • anonymous
can someone put the final answer of question 1 (formula) akash97
anonymous
  • anonymous
@saadixyz , okay give me a moment ! I'll try to post the formulas
anonymous
  • anonymous
@chaand.i : I post 2 formulas for que 4 5 ... que 6 is easy bt I dont know formulas for que 7 8 9.DO u know ?
anonymous
  • anonymous
@chaand.i thanx
anonymous
  • anonymous
@akash97 , No I am stucked in question 1 as well :/
anonymous
  • anonymous
@chaand.i : use CIRCUIT SANDBOX & use DC analysis to get ans. Everytime pen doent work. Sometimes CPU works better.: ) I have send u a msj.reply it fast
anonymous
  • anonymous
@akash97 tell me your question????
anonymous
  • anonymous
@akash97 , okay thanks ! Let me find the software and then i ll let you know
anonymous
  • anonymous
Suppose that the threshold voltage for the MOSFET is VT=2.0V and RON=10000.0Ω. What is the minimum value of the pullup resistor RPuI (in Ohms) for which this inverter can obey the required static discipline?
anonymous
  • anonymous
ron =6000
anonymous
  • anonymous
@saadixyz : r1=r2=100,r3=200,i1=0.001,i2= 0.005.dan 1) What is the power (in Watts) coming out of the voltage source \(V_1\)? 2)What is the power (in Watts) coming out of the current source \(I_1\)? 3)What is the power (in Watts) coming out of the current source \(I_2\)?
anonymous
  • anonymous
what is v
anonymous
  • anonymous
????
anonymous
  • anonymous
v=5 volt
anonymous
  • anonymous
1)0.054
anonymous
  • anonymous
2)0.00068
anonymous
  • anonymous
befor posting the answer plz write the question and then the answer
anonymous
  • anonymous
3)0.0034
anonymous
  • anonymous
these are in order of as asked
anonymous
  • anonymous
1 & 3rd r marked awrng @saadixyz
anonymous
  • anonymous
@akash97 what?? i dont understand
anonymous
  • anonymous
change sign
anonymous
  • anonymous
let me check
anonymous
  • anonymous
@saadixyz : from 3 ans u given me , 1st ans & 3rd ans r wrong
anonymous
  • anonymous
ok
anonymous
  • anonymous
@hejå Vout=1 , so first calculate vs * RON which is 5* 10000 =50000 10,000 + RPUL =50,000 RPUL = 50,000-10,000=40,000
anonymous
  • anonymous
@saadixyz : 1st ans may b r8 since I made mistake while writing dat 1
anonymous
  • anonymous
@akash97 0.0725 first answer
anonymous
  • anonymous
Assume that we implemented this family with the minimum pullup resistors that you have already calculated. What is the maximum power (in Watts) consumed by the inverter? incorrect What is the maximum power (in Watts) consumed by the NAND? incorrect What is the maximum power (in Watts) consumed by the NOR?
anonymous
  • anonymous
check tell and give medal
anonymous
  • anonymous
@akash97 0.0105 check and give medal and sorry for the wrong answers
anonymous
  • anonymous
0.0105 FOR WCH que????????????
anonymous
  • anonymous
last one
anonymous
  • anonymous
@saadixyz : ty
anonymous
  • anonymous
yes
anonymous
  • anonymous
@akash97 so it checked out
anonymous
  • anonymous
@saadixyz : still ans r wrng...........
anonymous
  • anonymous
which one
anonymous
  • anonymous
both
anonymous
  • anonymous
the power across voltage and i2
anonymous
  • anonymous
???
anonymous
  • anonymous
yah
anonymous
  • anonymous
@akash97 dude mail me your circuit and values
anonymous
  • anonymous
@saadixyz plz give the formulas used in question 1 nt the final value that you are getting we all hav different values
anonymous
  • anonymous
completed q2
anonymous
  • anonymous
any one need help in q2
anonymous
  • anonymous
@chanakya2346 plz give the formula used in q1,q3
anonymous
  • anonymous
@lucky12345 i havent completed mid 1 mid 3 ......i have completed only mid2
anonymous
  • anonymous
k wen u complete it plz tell the answers :-)
anonymous
  • anonymous
@lucky12345 for sure
anonymous
  • anonymous
@chanakya2346 plz help me with q 2
anonymous
  • anonymous
hey can u plz tell the answer for q3 3rd and the 4th part?
anonymous
  • anonymous
question 3 anyone
anonymous
  • anonymous
question 1 formulae plz
anonymous
  • anonymous
sSuppose that the threshold voltage for the MOSFET is VT=2.0V and RON=6000.0Ω. What is the minimum value of the pullup resistor RPuI (in Ohms) for which this inverter can obey the required static discipline?
anonymous
  • anonymous
plz give the answer of the questions in the way i hav given its becoming realy difficult to find the answer otherwise
anonymous
  • anonymous
plz give the ans for q3....
anonymous
  • anonymous
@saadixyz rpullup in ur case is 24000 (nor,not gate) and 48000 (nand)
anonymous
  • anonymous
2 equations for Q4
anonymous
  • anonymous
@lucky12345 and the powers
anonymous
  • anonymous
put the corresponding values in the answers i provided
anonymous
  • anonymous
Q1 power across V1=V1*current across V1(dis u get using circuit sandbox) power across I1=Vb*I1 power across I2=Vb*I2
anonymous
  • anonymous
@lucky12345 check your answers what is that 2.613 multiplyed
anonymous
  • anonymous
2.613 is the final answer i got for my midterm q2 u just use the formula
anonymous
  • anonymous
plz any one completed midterm 4
anonymous
  • anonymous
The static discipline required for this family is: VS=5.0V, VOH=4.5V, VIH=4.0V, VIL=1.5V, VOL=1.0V. What is the low noise margin (in Volts)? correct What is the high noise margin (in Volts)? correct What is the width of the forbidden region (in Volts)? correct Suppose that the threshold voltage for the MOSFET is VT=2.0V and RON=10000.0Ω. What is the minimum value of the pullup resistor RPuI (in Ohms) for which this inverter can obey the required static discipline? incorrect Now, consider the NAND gate of this family. What is the minimum value of the pullup resistor RPuA (in Ohms) for which this inverter can obey the required static discipline? incorrect How about the NOR gate of this family. What is the minimum value of the pullup resistor RPuO (in Ohms) for which this inverter can obey the required static discipline? incorrect Assume that we implemented this family with the minimum pullup resistors that you have already calculated. What is the maximum power (in Watts) consumed by the inverter? incorrect What is the maximum power (in Watts) consumed by the NAND? incorrect What is the maximum power (in Watts) consumed by the NOR? some one help i always help people here lol
anonymous
  • anonymous
@hejå see closed questions for answers
anonymous
  • anonymous
equations 4 mid term 4 plz any one
anonymous
  • anonymous
can any one help me with nand
anonymous
  • anonymous
@Nurali can u pls lemme kno d formula for question number 4
anonymous
  • anonymous
mid term question4 equations any one plz plz help............
anonymous
  • anonymous
@hejå which question??
Nurali
  • Nurali
@heja 1. 40000 2. 80000 3. 40000 4. 0.0005 5. 0.00025 6. 0.00055
anonymous
  • anonymous
@heja for nand gate power is Vs^2/(Rpul+2Ron)
anonymous
  • anonymous
thanks for help i had the answer 0.00025 alrdy but it was my final check and it didnt feel right haha
anonymous
  • anonymous
Q1) What is the power (in Watts) coming out of the voltage source V1? i used this (V1*current across V1) and give -0.04 but it is wrong any help
anonymous
  • anonymous
@Nurali help me wid que 4 pls
anonymous
  • anonymous
equations for question number 4 please ???
Nurali
  • Nurali
sorry i have not done
anonymous
  • anonymous
ok no probs...
Nurali
  • Nurali
please help me question 3 A nonlinear device Z has the i-v relationship shown below. This device is used in the circuit shown below, where "I" is the value of the current source. 1. Assuming that I=10A, what is the value of the voltage vo (in Volts)? 2. Now assuming that I=−3A, what is the value of the voltage vo (in Volts)? Finally, for the last two parts assume that I=5A. 3. What is the value of the voltage vo (in Volts)? 4. What is the value of the voltage v1 (in Volts)?
anonymous
  • anonymous
@Nurali : 1) 2 2)-1 3)1.66 4)3.33 jz replace device by zener diode
anonymous
  • anonymous
@Nurali : click on best response if u got ans
anonymous
  • anonymous
@chanakya2346 Q4 (R*b)/(1+R*b)*vIN (VS*(1+R*b)-vIN)/(1+R*b)
anonymous
  • anonymous
@Nurali click on best response if find answer helpful
anonymous
  • anonymous
@kaddy so what are the answers
anonymous
  • anonymous
what are the formulas for question 3
anonymous
  • anonymous
@kaddy : do you know ans of Q5??????????
anonymous
  • anonymous
Finally, for the last two parts assume that I=1A. What is the value of the voltage vo (in Volts)? incorrect What is the value of the voltage v1 (in Volts)?
anonymous
  • anonymous
@akash97 trying out...i ll post 1ce i arrive at the answer :)
anonymous
  • anonymous
@saadixyz which answer???
anonymous
  • anonymous
please help me with q5 and q6..
anonymous
  • anonymous
q5: 1.) VS-(R*iD) iD=f*(VIN)^3
anonymous
  • anonymous
@rvamsi for gain wats d formula pls??
anonymous
  • anonymous
@kaddy -3*f*(vgs^2)*RL
anonymous
  • anonymous
@chanakya2346 thank u
anonymous
  • anonymous
@kaddy no mention (any way thanx 4 the medal)
anonymous
  • anonymous
did any one the last one of q6
anonymous
  • anonymous
@rvamsi ; DID U GET any one ans of Q6????
anonymous
  • anonymous
@rvamsi have u done with q6
anonymous
  • anonymous
no
anonymous
  • anonymous
plz give formulae for q6
anonymous
  • anonymous
q6 vin=18,r1=1.5,r2=3,r3=4,A=1.5,B=0.5 1.)1.8 2.)1.8 3.)1.8 4.).......?
anonymous
  • anonymous
formula plz or (Vin=42V, R1=4Ω, R2=4Ω, R3=7Ω, A=1.5 and B=0.125. )
anonymous
  • anonymous
@rvamsi : tell us formulas
anonymous
  • anonymous
tell us formula@rvamsi
anonymous
  • anonymous
@rvamsi wats d last answer? pls lemme kno
anonymous
  • anonymous
hey!!!1 plz tell the answer for q6 with parameters Vin=45V, R1=1.5Ω, R2=2Ω, R3=6Ω, A=2 and B=0.5
anonymous
  • anonymous
Vo* (R3-(B*R1*R3)+R1+R2+A*R2)/(R3-B*R1*R3)=VIN
anonymous
  • anonymous
i1=V0/(R3-B*R1*R3)
anonymous
  • anonymous
vo and vth are same
anonymous
  • anonymous
oka
anonymous
  • anonymous
what about rth
anonymous
  • anonymous
Vo is output voltage only no?....
anonymous
  • anonymous
RTH PLZZZZZZZZZZZZZZZZ
anonymous
  • anonymous
q1:r1=200,r2=200,r3=100,v1=5,i1=0.001,i2=0.005 plzzzzz can anyone helpp me? i need power over r1,r3 and i1 thx i ll give a medal
anonymous
  • anonymous
r1,r3 and il only? @graydarl
anonymous
  • anonymous
yup, i have the rest of them
anonymous
  • anonymous
Thank you very much i ll give a medal
anonymous
  • anonymous
Vin=45V, R1=1.5Ω, R2=2Ω, R3=6Ω, A=2 and B=0.5 value of rth in q6 please please
anonymous
  • anonymous
@machu yes just the power for r1,r3 and i1 (q1) thank you very much i ll give u a medal if u can help me
anonymous
  • anonymous
power dissipated thru r1= 0.02333 power dissipated thru r3= 0.00462 third one answer is power dissipated thru i1= 1 milli ampere * 680 milliwatt......i'll get the value in a min
anonymous
  • anonymous
@machu i'll wait thank you very much
anonymous
  • anonymous
@mostafa.ibrahim q3: 1.) i=8,vo=2 2.) i=-3,vo=-1 3.)&4.) i=3 1 2
anonymous
  • anonymous
power dissipated thru r1= 0.02333 power dissipated thru r3= 0.00462 third one answer is 0.68 @graydarl
anonymous
  • anonymous
@machu 0.00068 was for the third but thank you very much
anonymous
  • anonymous
(q2) VS=5.0V, VOH=4.5V, VIH=4.0V, VIL=1.5V, VOL=1.0V. can someone help me with this please?
anonymous
  • anonymous
oh sorry i forgot milli volts!was tired! glad u got it right
anonymous
  • anonymous
pls giv me the formula for Q1 and Q3 i will giv a medal pls help
anonymous
  • anonymous
Please explain Q1 formula
anonymous
  • anonymous
(q3) I=10A, I=−3A,I=1A. plzzzzzzzzzz help
anonymous
  • anonymous
@graydarl 2 -1 0.33333 0.66666
anonymous
  • anonymous
@lucky12345 Thank you very much bro
anonymous
  • anonymous
@mostafa.ibrahim Vout = 60 Gain = -60
anonymous
  • anonymous
thanks u bro @pauliusn
anonymous
  • anonymous
q(5) when vs=100, r=1kohm , f=1 ma/v^3, vin=4v (1)what is th dc bais VOUT? (2)gain(vout/vin) plzzzz help
anonymous
  • anonymous
@graydarl Vout = 36 Gain = -48
anonymous
  • anonymous
Thank you very much @pauliusn
anonymous
  • anonymous
(q6) The circuit elements have the following values: Vin=27V, R1=5Ω, R2=7Ω, R3=12Ω, A=6 and B=0.1. plzzzzzzzz help
anonymous
  • anonymous
Solution for Q1: vA = (R2*V1 + R3*V1 + I1*R1*R3 - I2*R1*R3)/(R1 + R2 + R3) vB = (R3*(V1 + I1*R1 + I1*R2 - I2*R1 - I2*R2))/(R1 + R2 + R3) P_R1 = (vA-V1)^2/R1 P_R2 = (vA-vB)^2/R2 P_R3 = vB^2/R3 P_V1 = V1 * (V1-vA)/R1 P_I1 = V1 * I1 P_I2 = V1* (-I2)
anonymous
  • anonymous
Solution for q2 VS=5.0 VOH=4.5 VIH=4.0 VIL=1.5 VOL=1.0 The low noise margin is defined as VIL−VOL. For this problem, it is 0.5V. As an example, if an inverter outputs a valid voltage signal of 1.0V (VOL) to another inverter, then that signal can rise by 0.5V all the way to VIL, before it becomes an invalid logical 0 input to the second inverter. The high noise margin is defined as VOH−VIH. For this problem, it is 0.5V. Again, if an inverter outputs a valid voltage signal of 4.5V(VOH) to another inverter, then that signal can fall by 0.5V, all the way to VIH before it becomes an invalid logical 1 input to the second inverter. The width of the forbidden region is defined as VIH−VIL. For this problem, it is 2.5V. Valid inputs to our logic family are not allowed to fall between VIH and VIL. When VGS for the MOSFET is below VT, the MOSFET behaves like an open circuit, and iDS=0. That means no voltage drops over RPUI and the output voltage of our inverter is VS, so this case is fine with out static discipline, since the output voltage is above VOH. For VGS≥VT, the MOSFET is on and behaves like a resistor with resistance RON with our model. To find RPUI: VOL=VS(RON)RON+RPUI 1=5(12000.0)(12000.0+RPUI)→RPUI=48000.0Ω Similar to the inverter case, when either MOSFET is off, no current can flow through the pullup resistor because the MOSFETs and pullup resistor are in series. So VOUT for the NAND gate is simply VS when either MOSFET is off. When both MOSFETs are on, they behave like resistors with resistance RON. The two MOSFETs are in series, so we calculate: To find RPUA: VOL=VS(2RON)2RON+RPUA 1=5(24000.0)(24000.0+RPUA)→RPUA=96000.0Ω When both MOSFETs are off, VOUT for the NOR gate is simply VS because no current can flow through either MOSFET or RPUO. When one MOSFET is on, VOUT is: VS⋅(0.5)RON(0.5)RON+RPUO because the MOSFETs are in parallel with each other. For the cases with one MOSFET on or both MOSFETs on, VOUT must be at least as small as VOL. For the case with one MOSFET on, RPUO must be at least 48000.0 Ω. For the case with both MOSFETs on, RPUO must be at least 24000.0 Ω. So for our NOR gate to satisfy the static discipline, RPUO must be at least 48000.0 Ω. When the MOSFET in the inverter is off, no power is consumed because no current can flow as the MOSFET behaves like an open circuit. When it is on, VS must drop over RPUI and RON, so the power consumed is: (VS)2RPUI+RON Power consumed by inverter: 25V12000.0+48000.0Ω=0.000417W When either MOSFET is off, no current flows through the MOSFETs or RPUA, so there is no power consumed. When both MOSFETs are on, VS must drop over RPUA and 2RON because the MOSFETs are in series with each other. The power consumed in this case is: (VS)2RPUA+2RON Power consumed by NAND: 25V2⋅12000.0+96000.0Ω=0.000208W When both MOSFETs are off, no curernt can flow, so no power is consumed. When one MOSFET is on, VS must drop over RPUO and RON, so the power consumed is: (VS)2RPUO+RON When both MOSFETs are on, VS must drop over RPUO and 12 RON because the MOSFETs are in parallel, so the power consumed is: (VS)2RPUO+0.5(RON) The maximum power is consumed by the NOR gate in the latter case: 25V(12000.0∥12000.0)+48000.0Ω=0.000463W
anonymous
  • anonymous
(q6) The circuit elements have the following values: Vin=27V, R1=5Ω, R2=7Ω, R3=12Ω, A=6 and B=0.1. please help
anonymous
  • anonymous
we need a genius everyone that finds a genius must bring him here]
anonymous
  • anonymous
Solution for Q2: NM_L = V_IL - V_OL NM_H = V_OH - V_IH ForbiddenRegion = V_IH - V_IL R_PuI = VS * RON/V_OL - RON R_PuA = VS * 2 * RON/V_OL - 2*RON R_PuO = VS * RON/V_OL - RON P_INV = VS^2/(R_PuI+RON) P_AND = VS^2/(R_PuA +2*RON) P_NOR = VS^2/(R_PuO+0.5*RON)
anonymous
  • anonymous
q3 1) 2 2) -1
anonymous
  • anonymous
q5 Here, VS=100V, R=1kΩ, and the transistor parameter f=1mAV3. The amplifier is biased with VIN=4V. Vout = 36 Gain = -48
Qaisersatti
  • Qaisersatti
Q No 3 Assuming that I=9A, what is the value of the voltage vo (in Volts)? Now assuming that I=−3A, what is the value of the voltage vo (in Volts)? Finally, for the last two parts assume that I=4A. What is the value of the voltage vo (in Volts)? What is the value of the voltage v1 (in Volts)?
anonymous
  • anonymous
Someone can write the equo of the Q3 of the exam?
Qaisersatti
  • Qaisersatti
Q No 3 I =9amps I=-3 Amps and I=4 Amps
anonymous
  • anonymous
Solution for Q5: Vout=Vs-(f*(Vgs^3))*R Gain = -3*f*(Vgs^2)*R
anonymous
  • anonymous
I did Q1,Q2,Q4,Q5
anonymous
  • anonymous
Vin=42V, R1=4Ω, R2=4Ω, R3=7Ω, A=1.5 and B=0.125 i1 = 2.5 vOUT = 8.4 vTH = 8.4 RTH = 5.6
anonymous
  • anonymous
@EliteTUM, can you post the formula, how calculate Rth?
anonymous
  • anonymous
q(6) vin = 18, r1=1.5 r2=3 r3=4 A=1.5 B=0.5 What are the formulas/answers? thank you in advance
anonymous
  • anonymous
sorry guys, did not calculate Q6, I found the answers here in the forum! Still working on the formulas!
anonymous
  • anonymous
somebody know how to calculate the Rth of Q6? Vin=18V, R1=1.5Ω, R2=3Ω, R3=4Ω, A=1.5 and B=0.5.
anonymous
  • anonymous
aíí joao.. vc conseguiu o 3 e 5?
anonymous
  • anonymous
consegui sim
anonymous
  • anonymous
qual parte vc precisa ai?
anonymous
  • anonymous
as formulas.. eu to só com uma submition em cada um
anonymous
  • anonymous
No Q3 não consigo encontrar para I=2... :c E a formula do Rth no Q6. De resto tenho o teste todo, obrigado.
anonymous
  • anonymous
Q5. VS-iD*R -3*f*((Vin)^2)*R
anonymous
  • anonymous
a Q3 eu tbm não tenho as formulas...
anonymous
  • anonymous
e só falta o Rth da Q6 para eu terminar
anonymous
  • anonymous
viajei mesmo.. na Q5.. Here, VS=90V, R=1kΩ, and the transistor parameter f=1mAV3. The amplifier is biased with VIN=3V. dá uma foça aí?
anonymous
  • anonymous
ok na primeira pergunta ele pede Vout. Vout = Vs - iD*R = 90 - 1m*(3^3)*1k = 63.0
anonymous
  • anonymous
na segunda ele pede o ganho de amplificação. Gain = -3*f*((vin)^2)*R = -3*1m*((3)^2)*1k = -27.0
anonymous
  • anonymous
valeuu.. eu achei uma thread aqui que fala do rth http://openstudy.com/study#/updates/50896d7de4b052419091958e
anonymous
  • anonymous
vou dar uma olhada
anonymous
  • anonymous
Vin=45V, R1=1.5Ω, R2=2Ω, R3=6Ω, A=2 and B=0.5 what is the RTH ?
anonymous
  • anonymous
u sure? for what values?
anonymous
  • anonymous
@1431mahi tell us the formula
anonymous
  • anonymous
Vin=45V, R1=1.5Ω, R2=2Ω, R3=6Ω, A=2 and B=0.5.
anonymous
  • anonymous
THANK YOU SO MUCH!! MIDTERM 100%
anonymous
  • anonymous
Screwed up on q3 last part. But got through with 97%. Ask me something. :)
anonymous
  • anonymous
Question 3: When I = 9A ----> Vo = 2 When I = (-3A) ----> Vo = -1 For the next two answers I = 2A Vo = 0.666667 Whats V1?
anonymous
  • anonymous
is that question 3 last bit answer: 1.33
anonymous
  • anonymous
Question 6: Vin=45V, R1=1.5Ω, R2=2Ω, R3=6Ω, A=2 and B=0.5 Whats i1? vout? vth? rth? (rth might be 5 but not sure)
anonymous
  • anonymous
@ 1431mahi thanks for the help on both the questions
anonymous
  • anonymous
pls answer the q 1 for me The elements in this circuit have the following values: R1=200Ω, R2=200Ω, R3=200Ω, V1=3V, I1=2A and I2=2A toooooooo summum
Nurali
  • Nurali
Question 1 Formula vA = (R2*V1 + R3*V1 + I1*R1*R3 - I2*R1*R3)/(R1 + R2 + R3) vB = (R3*(V1 + I1*R1 + I1*R2 - I2*R1 - I2*R2))/(R1 + R2 + R3) P_R1 = (vA-V1)^2/R1 P_R2 = (vA-vB)^2/R2 P_R3 = vB^2/R3 P_V1 = V1 * (V1-vA)/R1 P_I1 = V1 * I1 P_I2 = V1* (-I2)
anonymous
  • anonymous
@Nurali In q1 how to find i1, i2 and i3.. plz help
anonymous
  • anonymous
@Nurali what were ur values... mine are 1000, 400, 600, 6, .002
anonymous
  • anonymous
I need to know the Rth for the attachment draw pleazzzzzzzzzzzzzz
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