ECE 201 - Handnotes - Lecture 26 - Op Amps - F11

ECE 201 - Handnotes - Lecture 26 - Op Amps - F11 -...

Info icon This preview shows pages 1–20. Sign up to view the full content.

View Full Document Right Arrow Icon
Image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 2
Image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 4
Image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 6
Image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 8
Image of page 9

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 10
Image of page 11

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 12
Image of page 13

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 14
Image of page 15

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 16
Image of page 17

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 18
Image of page 19

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 20
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Leg -D<.’vgcr .ICPSJ-foffic. wafl‘d‘o n I ~ 9 Ac m . “ML \ -h . D .. 1;; O 45c) .1. l1 26.l Ln. ! I" u‘ 44' 32 6.21 EE201 Lecture 26 P. 3 Op Amp Voltage Variables Note: Negative and positive power supplies do not have to be equal Op Amp Current Variables ' ' . 1 ,b 5 11 I _ 1 1 __ _ __ 1...,“ 1.11.}... ...1Q.9__--11.,v_51_._1 3.1! 1119.11.11... _._.___W\.r\“5.._.111!. 1.9 .7...-_....-_-,_, _ 1__1___-11_ _*______d‘ _A' __ _0_ 1 ' ;_ '__1 __ 1 —.1 __.__,=_ _ if _fi____ _%___'~7§ _'~ ' ' u: g ‘_C - ‘11—’111 ' 1 A1, 7 1% . Be '1--. Con-Q \ __ fimkfi M VGA-re, ‘ .9 an, .-1 E l‘ I.“ .. +"1knsr CKMI'SHCJ 1* a @VI‘CC. ' _. 0 me 0 cl :1 _ - " 7 -1 - 1 - 1 ‘4 V- \0 '~ \0 = 9!, 1 - 111-1111 W S+ufu+ion-Umr_ 9mm swam” “ “ ‘ '17—: ‘." ._._~_.._1 I "2" :€;~7 / 7“"- "g 'Vm‘f""""" "" ' "" N’ ‘ “‘*"M"M""“""" ‘"""" """ V'_ ""M” .._-.1_4..... - 4 fl m 111111.11.._11 -11....__ .7--_1... 1 if EE201 Lecture 26 P. 5 Output voltage for regimes of operation 'Vsat = 'Vcc (V+ ' V-) < 'Vcc/A VO i A(V+ — V_) -VCC/A S (V+ - V_) S Vcc/A Vsat : Vcc (V+ ' V-) > Vcc/A Typical input voltage differences: A=104gvcc=lOV Op Amp Model gtwo resistors, one VCVS) (V+ -V_) =il mV All attributes of V0 are satisfied by dependent source model EE201 Lecture 26 P. 6 gig, Redrawing figure on p. 5 Question: how does the op amp know it is operating in its linear regime? Negative feedback! Connect the output voltage to the inverting input terminal. This causes input voltage difference to decrease. EE201 Lecture 26 Op Amp with negative feedback Rf P.7 R i3 as Sma“ as poss‘bfe V0 H052 ‘Ifipu¥ (00+ Lowemt") - ‘ .I. ‘ ' ‘ fl - ‘2‘! “7 O O I -. _ - A A, _' _ _. , >~ ,. , Lo; .7 ,. , . , _, - 3“ ¥ - V _ - ‘. _ _ _ ,. . V. 7 6* ve ~————‘A 7 __9 +“’— ‘—“““ “.3 11 :1 11 11 V1The idea! op amp 1.0, ”M fiflfowzyg Pwper'biai 1.1-. NAN-1c MPH YtsEs+M0¢ RIH=°° This menu M it = (:9 -‘== 0 112,: ZEN ouipui msismoe. 12°07- —'—-" O This WQOvu 'HIG! M qqfic 860W W1+Qf€ A(’U2'UL) 11WLQ 01990” 01‘ Md 60091 60me +° 3+5 oudpufit Node. 1% i ‘- W Cmce mm =- A (0+ ~ 17,) _—=.- tor [’UerL) EE201 Lecture 27 P. 4 Ideal 09 Amp conditions £299 NOW, revisit inverting and noninverting op amps. ‘. -. _ 7 a» M“""'—' ' . 9 “+1 om ROW—V U ' I 1 Ig‘h‘L ‘ - ‘— _. _‘#—- v‘._.‘ ._-:}" I ‘ ° I . -.‘,¢v,(5_._d_. e : n: ' Jags“ _ ‘9 - __ - - _ _‘ , 9.";- - -. V In ‘ fichuggaiu" <7? A +hQ 7. I . c o \ || 1. - I . V .l at h A; -;- 7 : ~ :- , EE201 - Lecture 26 P. 8 Anal sis of Invertin 0 Am aw; Strategy: perform KCL analysis at nodes “a” and “b”, then solve for V0 as a function of Vs. QQJB EE201 = Lecture 26 P. 10 Anal sis of noninvertin 0 Am Strategy: perform KCL analysis at nodes “a” and “b”, then solve for V0 as a function of VS. B EE201 ~' Lecture 26 uffer Am lifier/Volta e Follower 1f P. 12 _____.,-, ,_ ,_, ,_ ,, Mnl‘r‘fi HOG .- q ' o. I. IS .th. . ‘3. ' \ \ ‘ , _. M, Lt , , A F, I; .. ,.7'..,1..'. 7, .. .. ‘l'I-o ! ._0A.; .-—_:_-= - ,V7m_ 7-.. _ - _— .. an V“._-~__. __ - < , . 4, .- . _ _ V _ ...
View Full Document

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern