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Cal i fornia State Polytechnic Universi ty, PomonarJonert-menf of Electr ical anci Computer Engineer ingvv| /u!
ECE 320 Linear Active Circuit DesignSpring Quarter 2OO7
Course Instructora\FF: ^^UI I IUE
Off ice PhoneOff ice Hours
Qutzzes (9)
Midterm Exam (6th week)
Final Exam
Total points Possible
R. H. Cockrum (rhcockrumGcsupomona. edu)
J J 'AV
909-869-25L0MW 10: 00am to 11: 4OamTu L2:00 to 12:50pm
90
90
100
100
Course Ti t le: ECE 320 Linear Act ive Circui t Design
course object ives: To study smaf l s ignal model ing andr laqianq r :F qinr-r le s1-acre and mrr ' l f i -sfaoe emnl i f iers-
' * f I9f g D LqYE qIIs ILLUI L! r uqYv
Course Textbook: Neamen or Jaeger any edi t ion
Prerequis i tes: Complet ion of ECE 220Co-requis i te: none
Course Grading:
Homework Assignments (9 assignments)
380
Homework is due one week af ter being handed out - Late
work wi I l have Points deducted.
Grading is done usinq a curve technique'
NO CELL PHONES IN CLASS ! Points may be deducted.
No make-up exams wi l l be given'
Last day to turn in Late assignments: March 1 '
2001 '
Final Exam: Wed., March L4, 2001, L:AOpm to 3:4Opm'
ECE 320 Outline
Week 1 Basic Facts About Amplifrers1. Waveforms2. Active versus Passive Devices: Definitions3. Smail Signal Analysis and Models4. Amplifiers:
a. Types:i. Classifications
ii. Configurationsb. Efficiency: DC to ACc. Design Parameters
i. Techniquesii. AmplifierParameters
iii. Transistor parameters
Weeks 2-5 Amplifier Design and Analysis5. Single Stage BJT Class A Design and Analysis6. Single Stage JFET Class A Design and Analysis7. Single Stage MOSFET Class A Design and Analysis
Week 6 Multiple Stage Amplifier Design and Analysis8. Multi-Stage Amplifiers-BJT/JFET/MOSFET
a. Capacitive Couplingb. Direct Coupling
Week 7 R.eal Operational Amplifiers9. Op Amps: Gain, Offsets, Noise, Bias Currents
Week 8 Feedback in Amplifiers10. Feedback Types: An Overview
Week 9 Effects of Capacitance in Amplifiers1 1. Capacitive Filtering: An Introduction
Week L0 Frequency Response of Amplifiers12. Frequency Response: An Introduction
a. Bode Plotsb. Domainsc. Filter Responsesd. Circuit Wirine Effects
Chapter x : From Neamen textbook.
Class notesClass notesChapters 4, 5, 6 &.7Class notes, 4,6 & 8
Class notes& 4Class notes& 6Class notes& 6
Class notes, 4, & 6
Chapter 9,13, & 14
Chapter 12
Chapter 7
Chapter 7
Revised 3-28-2005
Some Design Considerations for Transistor Amplifiers
---------Transistor Family-----BJT JFET EM-MOSFET DM-MOSFET
Parameter
Operating Mode Enhancement Depletion Enhancement Depletion
Operator Current Voltage / Voltage Voltage
Noise Level High Low Low VerY Low
Power Levels Low to High Low to Moderate Low to Moderate Low to Moderate
Failure Cause Excessive Ie Forward Biased Gate Oxide Breakdown Oxide Breakdown
Switching Speed Low to High Low to High Low to Moderate Low to Moderater- . \ U,i i tu r. . i rr I t t l r t t- l t \ .
Input Impedance Low to Moderate Moderate to High Moderate to Very High High to,Very Hight ,,t
i a.' t,o tl ( ol\'
Cost Low to Moderate Moderate Low to Moderate Moderate to High
Availability Low to High Low to High Low to Moderate Very Low
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ECE 320Homework #1
Device Problems
1. For a s i l icon (Si) smal l s ignal t ransistor operat ing at 300Kwith a base to emit ter junct ion diode reverse saturat ioncurrent of 1 nanoAmpere and a measured vol tage across the base-amit- far - ' ,nct ion of 0.75 vol ts, f ind the current f lowinqthrough t .he ;unct ion. Show answer in mi l l iAmperes.
2. For a germanium (Ge) smal l s ignal d iode operat ing at 300K witha reverse saturat ion current of 0.1 nanoAmpere and a measured.rrnl t - :aa i - ross the diode of 0.35 vol ts, f ind the currentf lowing through the diode. Show answer in mi l l iAmperes.
Transistor Biasing Configuration
3. A bipolar junct ion s i l icon (Si) t ransistor is used in a conmonemit ter (CE) conf igurat ion wi th an emit ter resistor (R") . I f thetransistor has a F:50, the col lector resistor (R.) is 10Kohms, the emit ter resistor (R") is 100 ohms, and che base biasraqiql-nr 1Rs) is 50K ohms, f ind the current in the base ( Ie) ,\col lector ( Ic) and emit ter ( Is) c i rcui t paths.
Circuit Models
4. For the t ransistor c i rcui t descr ibed in problem 3, drawthe ac smal l s ignal hybr id c l rcuj- t model. Assume hi" :1.1 Kohms, hr" = 2.5 x 10-4, and ho" = 25 microAmperes per vol t .
CaliforniaStatePolytechnicUniversity'Pomonan.putt**t of Electrical and Computer Engineering
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cal i fornia state Polytechnic universi ty, Pomona'
Electr ical and Computer Engineer ing Department
ECE 320 Homework #2
Draw the dc schematic mod.el , the hybr id, and the hybr id-pi smal l
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2.Commonemit ter ,sel f -b iased,withemj-t terresistor.3. Common emit ter , sel f -b iased, beta- ind'ependent, grounded
emit ter ' .4.Commonemit ter ,sel f_biased,beta- independent,wi th
emit ter resistor '5. Common col lector, sel f -b iased' col lector grounded'
6.Commoncol lector,sel f -b iased,withcol lectorresistor.-1. common cor lector, se1.f-biased, beta- independent, col lector
grounded 'B. Common col lector, sel f -b iased' , beta- independent, wi th
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Derive the equat ions for vol tage and current gain and rnput and
Output resisCance for e.ach circui t '
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Deparhnent of Electrical and Computer Engineering
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[uE slu FiomeworK f 5
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1 mL ' l r^^^ ^- . i -J. r -1rs vrJJ-Lo.9€ 9eirr
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ECE 320 Midterm Exam
1. Draw the hybrid-li model for the amplifier shown below. Label ALL componentswith appropriate values. Ve: 600, F:49, V1:25.8 mV, and Vs6:0.7 volts.
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ECE 320 Homework #8
a)
1. For the circuits shown, deterrnine Vo . l,Ef fJ=In*r t*tO 1*
4)
ryrite. the
b)
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2. For the circuit shown,Rz
equation for Vo.
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California State Polytechnic University, PomonaDepartment of Electrical and Computer Engineering
ECE 320 Quiz #8
Name:l "h^ A, Alq.r t i r
Find Vo for the circuit below. Ib-:Ib'Show exact solution.
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vA (-
: 100nA, Vio: -lmV. DO NOT ROI-IND OFF.
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Cal i fornia State Polytechnic Universi ty, Pomona'
Electr icai and Computer Engineer ing Depar-Lment
ECE 320 Homework #9
Dcsion a s ino1 e staoe trans- i - i -^? --^ ' l i f ier tO meet the fOIIOWing
qnor. i f i r -at ions:
\ /o l f aoe Gain:) -100
P.r l - tarrr \ /n ' i farra: *10-Dd. L- L€ly v v: LsYv
Maximum CoI lector Current: 2 mA
Show the f inal dc schematic for your c i rcui t wi th ai l components
Iabe1ed. Show al l calculat ions, both ac and dc for your c i rcui t .
ver i fv vour resul ts wi th PSPICE
rr 61 a
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3t7 t07
HW 9:
C alifornia S tate P olyechnic University, P omonaDepartment of Electrical and Computer Engineering
ECE 320 Quiz #9
Name:1o\" A(julu
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An amplifier is to be designed for use outdoors in a satellite receiving system. Which
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BE rn]c.H' GtzEArW? TH,+ro Tne 6*tN Otr SfzsE A.
f trz A tr tBsr f tPPr?o{tm*T7oD , LET Au, c lo, 4vT = Io ( io) =lro
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V"*F?v (eee*roood yocrnee)
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= 4, i l8{ F-
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A4
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b ss-'.fio't.
sr.lan o'g = 5,0 -5.9
d2 -owm'
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> r?'L(TV?n
h\w oe = (, b) y w bqz'z
gwle?,z =twJ (
vwbqz't
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v44
!* !T*,*+ ryT p trq ?1ry
lAwzh.tt =(^5) UnLqZ,t =t-b]J
= )tvu.n .tt-tv3 =d = 39v-tf,vC4b
t L+r LqZ,e + A* T : -uof, J
JV ' SL= ajYsc'o = lV
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hb'h = (t ,bo'hX.-ar x bb'o) - 5- = -2)J-rg"- ?Di =* >n
awobb,e =-ffi= + - -T = =a
_goh,Q = L,A- -Sot'l = 3€n -€6 = 3n
7to€l' b + 151',: LE RrY + 'tY ?.-Sot'i =(f)G: --nff=u{l
: *.-rg 7#n W W ffzl
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a-B
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hfe =- {oo ,R.= L+ooo ("-W *oqr) , R e = go1
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f R. o-.U Rt +r^**
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(o rz-rzecno *l 6FFsEIID4L
Vo= (v* -va) Avoa
( Vro ) Auoc t | ' ' , , " .Es=aq#r,;re=ro ttffi'')
l l f+ \ rJYJ,"{tg\ = 4 ,v-
t : I I n, .L+ / 'ttftr
50, 4 nlz , Ee ? to nh , AND Ia! lz .EfA tA!4^,
t- (n fiPrc*L v*urle )J
V= l , (zs.s, , , rv) !^ (HJ = o. '7oot1z=6 uoLTS
@ *d n"Z, IB=lorrA, ANo Co= tZ.SoolboZPf+
Ln+e Aotrrna$ dF L etE.,c;rmo/',
V: a(25,3n+v] Lr-(ry \- \ l?,eoofEff i )
= o 'Joot4l ' I I oocr:
:, AV * ;1oo lLl?-;3U- . l " r lqt- t t
. ,
LgBl B -taV
30) Vio = aV Avo,-
6Alt-l Avou- Ay
= | ,88 r3-,uv (roo r)
= le 'e '13 rr+V
-/HnLF F[uiEB Foll.lf
-/- 3CB
-- - Au.u--+ At''.
Erccess GRITU
LooP
t-oo?
tsArsgr^1trn-t
FeeQ
GAIU
+Lr , r ,+ l -Tv
VA
- i t{Q,".
vo--){t
Vz.
t1{t
\tsHULL - |
.+v - oreEt NcJr_L
uo = vo (- k) + f;Rr + v* (H.-,) :t o" (F +r\ '%.W Y,^ H #,H
Uco , = tt*
u uuED I
LLS I f.Je THE NU uu POIEAJTIO nn gf€*':
R * = Rri\ Bu R'. -- | uPUr RF:sr sto R.Rp = reeDe4a< REsisfoE
t r f4c = (orrt tcEryisftntrN R€Snierc
}DEAL
- Vo = - cr Rr 1 A=urnf NG v,f Y"! , lF i f =o t*e,-J +=i l r*
Vo = - Cp RF -- - ii Ro -=€r Uo =-v; ( nr) = -U* ( H)
=tFt\
Uo -BeuLi. Rd
-Vo=1,( f i r tR;) |n='orntNGV,*V'At. lDi f ,=o, i [=6
56, Vo = ip (er+ Rd ) *r l+ =i i ; Ha ** (no+ni \ =uh / f ie+Rr \
R.-. - t \ - ; - /
H-=ftS)=ft+l)C-o II'\PeN.SAT.1 OL\
l r * i [n*= Lf
c- d Rc-=FF=Rc Re \ ...iF=t l ) k,* l
Re' I;fiu=r 6R Re=R
(n/^JNF€T?aNs w,{.tc/.+ ADDre+-DBdr/(,;
NorJ FqR oruffi_J_aenmxErZS - __
- le- THF FEgsT?+rrJG Si{ouLp lr$cR-EArsE, Tr+Eil mutn-pl{-tsj-Ql4
I!--TIte REEtsn+rUcE sr.*ouLp DkaeAsE,*Trred_brvr_ue-e_y_G.PAl
ve
ct(Jt-AtJ T.
1\ fe- l \2 lT
Cuftn-.E*ta fuOg,
, . . . - ,F eE--
4 l pCu{i 't{
? g,J ;ufi;?# *Fr;"1:t-JdG,ct
I\+sf 'Jf #I4'ouTi=ur
iRri
t l?uf +la4tF. i - tJt i
o*6:tJf4\R.atJ lT
Vc.
-1, llJ\tGut
clF4u tT
,'ff0"
l " Vo,-Get- =*ta1ueli ) facrae F FEI=oE*'
lf.rt'rf
Pp'€*t t-Et
0aq
CUR-f,=Pr' 1Atf lPLlf l&
rlou{?r€F €*ete$ll
lr.rtuT <t1;+ euml:r. \ ,
I
k\1
Rr^ l r f
I t \ar \ rF
Clf<.rrtT
vo
RL
Yr
{-"*,PSEAT ?
* t"Lto.a = As?rpd U '$f,
eu€*SJ1 frgogr}ta
Se(qt€ =*Q!L'eq)
fr"nsu.s'-
t
'ffr"\
r r i" 1o'
1*.rAlI-#1* sr"rf?rt
f f- i , -
_
.ar (Re)Cnr. .
- Re, ' Rq // (g'" IlllgqnEs=
E.ltqJr",)fre, I hft r'
+ex[(aor +Ls + '&'il'"ll,g \l ' ro ' , r " ' J '
::=-
4-. -hs
\hfis /
7.lf oarr. lT- sttf'ut} 8E A.tatEb l?rf,r .sra6e .2 n* Nor fiav. ArN lut,,,uFrrcE orJ .?rE .,,uJ alWoENs16. ec, wl
. : Ir rftE coolc1116 cttp$ctmt ,s ltLso t"tE C5. Fasre6E Z B.or ttb FrlEpue,uc_f EFFe.f uft .DsE
. By THE RAtx,r5,s aF Tz,E . lrr s?+r,a.. {. s*,. '-'+ 2o Fos C.'.
. _nq€rn,op"rro)+ , -&'n: R,
ti.= t.uflti,e *. I:or.R
h"', . a.zFllt.o6ts: ?os-n-
4or.-s}=[-El .A"*{raro-earu,o). - *F fr;. -l;(*.,11Au = -lg3 ' \ l-i
'z l ,osp(t t t r )z l ' - lo7 J
Av; = ltLI -67
c1,= cp I Cc.*r C^t
e%= (t t le/)e, = ( t++.s:a).=o,o- ' '=
. c i : f lpf + sopf + t lospf s. 6E.o pf
' t"r 4i*u "llr*. fl ft, . g.EgK lln"' Rg= o .'. .Frut = O
l;ii,$iili i l
ii$iifi;liiIi.iiiI
t tz.,l R .
vl ,
arrFE-= E;ry5:r'IP wE t€5lrrrtE'nr*rX4r'7s ;.hnadg lGr)D wlle .W,
g dtuurdat, .d' fr'tl cr;.M i-rf,-r;.ta fa iA i)r,o, *a+A"t'+tilft;- od ilS ZISE.
tl drEarft;^' fu V #t
.ya. t* afr<nLq f i tzra (6.sqnE) ' - a
-U-O;-"Iafu 74., -tn;A*a.a,.e EdhA- ?-;* a-J*^ILa-4esl4, ,Lr*J" of 4r* Uft u=a.i<n
ffi (-c1F4t)
7.{ twr.
f . ,
4*a.arr (nqt R )c"
I
err (&,tFrr)1,"rSE
.. rt..H:.e-.Drr llll| fDnilc|ttD:,3
,., AEqrmldCF THRr Eoril TEnNIlTSIDps. FRE rDEDn(*L.(amF-hBstflrr?[reN flrotrE E[}| ]GBrlr FIIE .tparrnccc)
- TftBr!hic.,= hiea = l.iBK
l?.r. ru/l,r*' Iunt-sEx-= t.318K g't,sur
l{ i.= ;1rorrs ____AESa}ILU_6_JF3 A g_
,fr.f - arr.6Lzl.r t.Ur!.)Zr.F
, ,ft'Gd e]ffl
.f$umr$e fi*r fiElr tRE:rb|- tDErunctc(a(sc & Fef|q. &fq|flpTroro FF4fdSF fttE'i', ffi6 gttts.
. awwtJ'fl"'')Ets; 't"lvft . o;E.? = Er.Btttt
Eco Brg- €,qg., i ' i l
f r " &.*Q. ?, ' lF lSnAQ= 3!#- rc.g?
.. .rE
)c'
E
t .
4.3 uar.f5,
t i t 'nr*
E: 13,9O st
TI|ED
l3
;' i I 'Fl i , I
:.i i; Ii:Ilit' i i ' I
'.i|:I: i i l l
*l,lti
;ililriiir' t l ' f ii i l ' I::ii![i:itf- : l : :
i , i i li:ilI.'iiIi : ; f Ir i l : {,.iliI'r i i i li,iiIi.ii:$r , i l l I; l l :$, i i : ti i i i I
;:ilif" i i r ii ; l l, i l t t:,; l i I
r l ,s
r' l l,Ii:ilIrilrf, i l i l;jilil: i l i I' i l i l:,i i:It . l l i l
l:: ;, i
I
a;n= Eur" + Qr, + Con3-
: . . . . . i : . '
.:tuEEEmilE , uJrE ttAvE TltE .Fq"otdfltJ6rBnr;.= Fceilnchllr{ia.l . ,F-fdT; L },,,"= '
* f l= =
. -F
: ; F 448' tRHt f rs ' lp 's6ue. +. [ f- ,tb rrrevrrr& . :.' . .t+"; . = lS..sL H'g .' F.-..' t"t{n
r r | .+- = 9,856. orf i E "er - r r in-=f f i - . : . . ^Nrnl,
;'ri.Ia'frft::
It .
t'ol err R-. f-
. Av - ' - { ,Ea'L
4t = q61'ET
tu"' ffi= l':,:l tw':e,ffi:tr-
J,?( slfl- ra-D-EeuJ- THE, ..Bo.EE--.RAor .a.p DrE--.€&)nfi MPuft€& gmrorSg
: . -UJrr reRE-.Ar.uFAsr -A. &- eFtE -Lcr- ffi& - i i
| *FR hl t - oo I rH€Islore=qoafw,
s*,,HPF
. l-Fl=I
ff
e", # R"-
$,_*
\-\P1:I Iirir liti.li ; l
*l*{
LPf:V-
nptT'4-
g,, -\4{irL==
-[9+
/*,lt"T
Hf l:'Ft
A Hr:'trCe
*.-*\\- , , I
? R.:\ - "
t'aT
{u#n'-i* r*
I+I
t-IFtr
Lpp
tL Af,tr
\ \
\ \*__
. "l- --+ t'
Mrr
. l
, : '*--*O l
. f\PF
V.c
,/)lLc
c,<- voReL
'-"HtI
@L
f rI
I
Lqrrr) trfLeQU Enlcf REsPoos€
c.b-zt (e=+ n;) c=
zs (n" " RL) Cs
S." =zf i RJce
F\ lGt+ F'aeQ\) en-)cY ra"eSPO r$5€
R; = Ru,\ \Ru.-\lG* rp*,)P-)
.tLC-
P"'
( -Lr . .r', L zfr Rr,
" i
(r' n (p")Re)
+ Ca"* ( t-n',!
\
2n R;c"
c*ot ( r -
Crv'o
) '*J-Ay
Rr'= R"ll\-ri- + (ff*,\\fZ*,1[Gt
el = R=\[R, l l r"\\ e I Ri =
Ci =ar i *Cu*rCrrci = C- i
Rl= R"l IR,- l [ (%
Co= C.^lu* C.e
.Ll l to:
5€L€cnPG I, =lnnA
rH€*.) t*=?=*= 4,*A
RB=
fg=
Vcc- Vgeqts
25.*ntV1,uh
13p,'t - -- rrf
= LL - z,zzgafu*
= 6.45' , K
-zlo ( s*)' 6,r+SL
t4-r-
Av=-L
l ,2S F(o- _ t tf f i?=-te?,s
An=. \
-zao.!f,Es9)- = -too6,r+5K
Qzon'Ar=-F#." = - too
=- i1 ,72
Au[LEnAJc- Voularee Ga r,,.:
b) ex,ncr DESt6r0 CASE Q.l.ftmPLE - Flro p
SEITI ru e Av =- too
so - FS= -too
I r
FR" = loo rrT eNo F =
t
p : ,oz r'r.
C'.= )h- = !-F'fr'^'/rr r€ f,g
lF EB ! S 9er€crEtr To BE
'Eg -- to.;.t A THe,$ C6 = ?..S9ts
AND F= 'oz(z 'sae), ,= Sl ,6
lEg = S.uA r1ra.r
ns: W=.s,rb<
p= .oz(5. lbta) = 163,2.' At'tQ
set-ecD uu P = (oz,z lftJot,se rHryr Exrq rrnar..,ls,etuRl
Gt ves
ft. = 5K (nrt: HAS r$o1. cHArJ6@ Fr;aly. fue rresr\\ q-lxArnPLe ,/
Re* W= #= t '8614--
loOq1 - f6o C6--
Rc, €K
fzaN+ z.s?R
F= too
\7!
Av.Jp* = -1g:z (#- = ^ Z-6,R.: -/oo' ' fb --E:r6F- - s. ,6K - +
*5-esre r*l eY.AtvtPLE l* J.
=peias Av ) - too
AsP -to
SoLrl Tl o O
BnrreaY vor5P6g =BAi-{'EAY CUAAeNT- =
OpEA4Q p6 lErvtP =
c HEAp ['\*t \
t,t>qQutc-r.
vi _{
\ovZrafr !hr+r.SooK .{i..>r-: r'-. -[ "
\
lol5c-
\tb
Av=
A"=
Yg = -FR:Yd n'T . '
.,'
A=-F#F."= RellCn
Ro = R.llQ
a) brcesTl cAFE efAMpf-S -rreoasT'c+ei9 F :{0t)
* t(."*'*) r lnaa
' l ' I
" ' : '
o- _ Vc<.-VtEE Io - o.?<g=-=-:
f€ loth
A.r= *FR* = -I""_(sp). = _lg3,g'
-r fn Z,53la €
{ r ="i#-- ".sEK
Jqtofi
= i:el(
SEt*ecn r\9G. I., = | f**,.-
trrof,,€f- Ct-eE p -- 'rca
... Ets= +; E_PI"o
-- lo2^A
59 IB = V.cc-* VBE =)" Rei
cH€APFf, &Stef,.T r'QrJ, q4,eq e I R,c.JtT
'. .: TO m9er sPEcs
v0
idvpcrr ctt l€ut7- - €.uRRerui- l i i l loelz
ouT.
T =1o-
B,L
I.= !t
-vo +* l ,_L Rc
/@\\ Rc-Rc l
= b. /R..-R"-)Rr- \ R.- /
o* (q-il)
*: = u, (i-h-)
r. = v" (8.-+1. )kT'-=a- /Fu+F , \*c-- '_\-
R<. l
AuD .a ' -T Gg:-
- Hu* t(c.
Gnru - "uTeur brv'DeD BY t Ntr
-T Rt ' 2
F
fo =E' = Lc- fl = *8F Rr-tt2c
tr i = ro (R*1c".)Ret
riEPfu, = F.fu..fuLOF-
f ' . Ib / Rri +Ru \\-fao- I
c\ R(u ff {3(,jTFuT. Lo€tr,41 t^.]AEbS
'NTPQT
Ri=far (F. , )ReEe= Ig*Sr
!"= P tt'r Ie= (prr)I6 (P (F* ' )#+,) IrL =,Rc
[,r+ ( p-rr) Rg
*E-
OR
V;rE
TT+E6ot
l$
LooKl rrJG Fea(^
I Npof 6rvESyo
r-tI
R.
A$lO
Ro= R.ll#,
trJr TL+Vr[ =oGrues
{ro--|_--r
I [" 'f ?on fF 'pl l' : \O++
tu!'+ l
6 g+t) Re
frr' .* Reto'
.,UrP.Jr BACK
V;
"T *ReP*'
r/p+')
TOUJA(A.D 3
Dea,u +n o f\l otr €trtrrctg{-tcY Fla-
I . SEie.\E=-tr=D <o,\ i FL6'. l |e.AfioNl
- r / {<-L," b€. <-Sera\E= -FEs{ l 'u l . - t ' {o
CLt+g /+ frivlPt-t F-l F,e-S
I t t
r l
a.€ cer
= VprPz
1 *rFC-l iFrE ALJEtr.?*+drE por4 €r? (a.) ro T'l+E o LSTp{-lT €lR-Cu tT- NE
P= tr V ) sP€€tFtc*tLf: Pd,o= I..V.a
b) fiAq EprecTrva Fourq"- (rms) DEL\uereeD ra Frt€ LoAD is
P=T:V h,-r Vu**=FrI**==F
c) ereia-re*rcY t=- "j*H: E* - Y+ = r_ t vr r* Jn= E p4" - E4vcc- zLffiS
?I faYlrt -q* , Vr*n= LP
F
Tr^* -I'm,.crz
r t . l
V^ = vnaAts-Vrrr l r3t -
1-.
VP
!z
TH tg
.tc-
EqclAnrol*) cnru) At-so BE ExPG-es5lED As F'LL ows
-t
rn 21.q lnf.(/irIrG
nAA
d \ Ff?o n^. Tli t9 LA3T-
tF VftuP = O
Vn'u+r = .t'ec
EQUAT]DEJ WE sEE THAT
' [:. Zs?s e Ttits tS THE mA]sfl unEFFrc I erJcY FA A3Erate= FED <riacurT-
#
rdo to!t\ |I \i.-
a--
California State polytechnic University, pomonaDepartnent of Electrical and ComputerEngineering
ECE 320 Midterm Exam
il 1- Draw the hybrid-n small-signal ac model for the circuit shoranr below. Label allcomponents.
Y. p= zrof1' : loo
-v g: g'ooK-
,t 2'+'|c
\l 3. Find Ai for the amplifier shown below.
Find Av for the arnplifier shown below. show e4lrct sol*tion. Do not ro'nd off!f-----f.-+tt
Vs3= a.J pz t?€r l1' =?9.8tnt l
Vp:8ao
I l=oO p=z-eo
[p: too
'\J 4- Find the i'put and output resistarrces for the circuit shown below.
Vo ?= Snn
t.r.tr!5.'
9;
$rr3o.ol
" F. Determine the current in the road for the circuit shown below.J(
-f.loRa' ,TLC2
f ,= lrAEo= lo7.?b*A
Et zg.Br,nV1
Vg": O.?
r. = -L"-:-Li' rL
s;
For the configuration sho$n belou'. finishtlie design to meel ihe fbllou,ing
V4: o
V€e; roVg": o,?V1 : 25 'BaV
Ta^^, ^ 2*4
! .e = l .A
TF,q -
2-A
AY=-l f
% =oo
For the configuralion shoq,n belorv. finish the design Io meet dre foliowingspecificarions:
6Rc7. Re8. Rb
Vpg^+19
v^ f tnn: o 'o\
- A t -
HV: - l5
Vp= -3Ip95: lOnA
rDq = \ ' t 'A9. Rdi0. Rs
[,urrri.!*"''. ,s,'ll>
It vx
Vr. - V,r( t f - o.'-) -_ l.{- ",
%F(l t t )k zap rh4i.'") 316pfz. 3 tt
= lzf * 7,(^
7.V'",i
- tzr(a ) - - 8.7f/(
'b(/rr t )& ) 46q.rzt(ne[5J 1. y8 qE(
.Kt
V -- o,6v
tlnn - I uts
,a
v-1
{0bR.
tr,. A
r{priJt,
to
nVT f l^S =r/4(,, T'vD
_-_---.-_--f
I
I
il
t_-
l --T--I
J
l
]
__L
I
a )o'z - )oz
*4*n=1J-"-1
od r9n
\ .'. i f l
i iLr '1 [
I i.ts/ I\ \ { ' / r\ . f
.*-*"t
;'t- lr+ *:,.1,r
L .__ _1.* ,
I,.{; . irt-,
.,"f
l_ _ ' , /i | " !r i
:1 ' ; . . l i
: {i
\r.l
'n \ t .' lr'\
l id l
t-
{1)i , i l
I
'/
._ i / ; .
i i . .\*-{'
II A t , i . ,, . \ '
\J.
\.;, . !.j, ;-, i ;
-r . 'L7
!a I
\2 ii - r, I
. r l -
I
-, ,i t.
\ { ,1
{
-.'i
.-
-.
-.-
- .,
-t
:
i--
--"r
.j
,-l
^<j-
,.-_
^..
_
l--,
*_,
i _
,r
.
'.'.
-.
-.'\
t.- __
, -:
_F
- "-
...
'*.i
i-.
:-4'
l-'t
-
a I
iiI
I;.
1,.
I :. t:
t.-
l :-
't\
- -
l-'-
.:*,
.1*
| 1
/'
I ---.
,*i
:l!
4
*.r
'*-q
j
a; /.il
i
i .'i':,1 t ,,':
,,4
';,/.,' '""','
'-..j' '*-ti''_ , t.r\
t"' 'i ,', 'J lt'",i::;l
,.],7
/r')'.!f
t_--f
rll
nl{l''
ll
i
i
I
i --
/-!.!';'7trtf,'
i /-,
.l 'r; ,'
]: r,l
i' J 'j-
r'l l1.Y t'
J
,,f '/
J
ilz' .t:/
i 1r i ' i ,,'t ,f ':,y'r'
l ' 'i'l
il ,-,, / ,,, irl
IY
it "
f' "l
i:t {,, 1. 1-' , I ',,,- -_ , .r, ,i"
ntJ ./' 'tt,4
A
Llilg
'lr i't
9,,
.- a/'
i7 -.. ".'
'- t '1:l
".,i
,,i/
,:l
, ,J I
'it
lJ "r" ,-
LJ I-l{ F{l.,1
,',
il
l-
r i i--ii\:
"l '"1 r -l-J
tJ / -+f
,. .:.i i,l:','/
1r;.,. . ,it
'- i',.1 ''ll
r,Jff .\J
,lII
l,'l
I-T. I
,ll- i
jl- i',i !r,.ii
-:_ , I i
't-I
'-1
1
l=%
I tt t / t3 lo4
Ir ,_,1+
!p - ' $pgl
f :: I l){7rVi t 2t" t ,^Y
lgu ' - o.? V
{- r= F tJg,o
i - o.- l
2 5.8 n"V
-r6 - ln ' l{, / A
[]r
ln
f ool< + (rr ' r ) ( Po)
I "Z(, K
\1, . loo'r , ? -----F = 2q? l<
n
J c rl ./ '0'l bv la
"\J(c.
\ gt -' o"?
f , , i 2 ' lYrr ' 1Sl0Yor- F
{L-T----:- *e r 1--i ^^;**t *r?r,. 'i,'r" t' ,0 1* 1.*4 ,.r L- -I" 1-*-)
AI:
lr*V., - ,u,p Rr. Ail. 1lt't iYL - | - . - 1"" . - t l . l_-- / l ; '1Lo5tUl h rn- f q t, iss'1 )Au.
?rOOK-
, , / , t /" r, l t
{ o'* u"
I i r . iSE
V*' o-7
I
e-3{ ,"L-I
I Qs, i l l rB, t r ' r r*Lb
7' r", ll ( sz
o, (*toj = zo(o +t,,)
r lt1 tA ll1l y_
- t / ,
L ' -
F-t !4 l l l {1 ' 4 ' :s 'e
LL
= - '1"(y
V.
Jf-"-I,1,
I
+ i .vf, \ -
f tL
/ll r : , : "
_l*
rl )
--44-----J
lcn r
fr lt-
rV toot
l "qQ'lI
{r0L
aoz
(,X' aTr/
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