EE 230 Lecture 14 Spring 2010

EE 230 Lecture 14 Spring 2010 - EE 230 Lecture 14 Basic...

Info iconThis preview shows pages 1–16. Sign up to view the full content.

View Full Document Right Arrow Icon
EE 230 Lecture 14 Basic Feedback Configurations Second-Order Filters Difference Amplifiers Impedance Converters
Background image of page 1

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

View Full DocumentRight Arrow Icon
Quiz 10 a) Determine the transfer function T(s)=V OUT (s)/V IN (s) for the circuit shown b) Is the circuit stable? Assume the op amps are ideal and all resistors are 1 and all capacitors are 1F
Background image of page 2
And the number is ? 1 3 8 4 6 7 5 2 9 ?
Background image of page 3

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

View Full DocumentRight Arrow Icon
Quiz 10 a) Determine the transfer function T(s)=V OUT (s)/V IN (s) for the circuit shown b) Is the circuit stable? Solution:
Background image of page 4
Quiz 10 a) Determine the transfer function T(s)=V OUT (s)/V IN (s) for the circuit shown b) Is the circuit stable? Solution:
Background image of page 5

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

View Full DocumentRight Arrow Icon
Quiz 10 a) Determine the transfer function T(s)=V OUT (s)/V IN (s) for the circuit shown b) Is the circuit stable? Solution: s V OUT 2 OUT s V s V IN
Background image of page 6
Quiz 10 a) Determine the transfer function T(s)=V OUT (s)/V IN (s) for the circuit shown b) Is the circuit stable? Solution: s V OUT 2 OUT s V s V IN OUT OUT IN OUT 2 VV V V = -- -- - ss s
Background image of page 7

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

View Full DocumentRight Arrow Icon
Quiz 10 a) Determine the transfer function T(s)=V OUT (s)/V IN (s) for the circuit shown b) Is the circuit stable? Solution: OUT OUT IN OUT 2 VV V V = -- -- - ss s 2 OUT OUT OUT IN sV - sV + V = sV ( ) 2 OUT IN V s -s+1 = sV () OUT 2 IN V s Ts Vs - s 1 == +
Background image of page 8
Quiz 10 a) Determine the transfer function T(s)=V OUT (s)/V IN (s) for the circuit shown b) Is the circuit stable? Solution: () OUT 2 IN V s Ts = = Vs - s + 1 Poles at 1+j 3 s = 2 1-j 3 s = 2
Background image of page 9

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

View Full DocumentRight Arrow Icon
Quiz 10 a) Determine the transfer function T(s)=V OUT (s)/V IN (s) for the circuit shown b) Is the circuit stable? Solution: () OUT 2 IN V s Ts Vs - s 1 == + Poles at 1+j 3 s = 2 1-j 3 s = 2 RHP RHP
Background image of page 10
Quiz 10 a) Determine the transfer function T(s)=V OUT (s)/V IN (s) for the circuit shown b) Is the circuit stable? Solution: () OUT 2 IN V s Ts = = Vs - s + 1 Poles at 1+j 3 s = 2 1-j 3 s = 2 LHP RHP Since there is one RHP pole, the circuit is unstable !
Background image of page 11

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

View Full DocumentRight Arrow Icon
Inverting Integrator () 1 Ts sRC =− 1 Tj ω j ω RC 1 ω ω RC = 90 ω o ∠= Unity gain frequency is 0 1 ω RC = Review from Last Time
Background image of page 12
Noninverting Integrator () () 0 OUT IN IN 1 VV V 0 RC t d ττ =+ Obtained from inverting integrator by preceding or following with inverter Also widely used Same issues affect noninverting integrator Requires more components Review from Last Time
Background image of page 13

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

View Full DocumentRight Arrow Icon
First-order lowpass filter with a dc gain of R 2 /R 1 () 2 12 R1 Ts + s C R ⎛⎞ =− ⎜⎟ ⎝⎠ ( ) Tj ω 2 1 RC 2 1 R R R 2 controls the pole (and also the dc gain) R 1 controls the dc gain (and not the pole) Review from Last Time
Background image of page 14
OUT IN OUT IN V sRC = V1 + s R C This is a first-order high-pass amplifier (or filter) But this looks like a useful circuit!
Background image of page 15

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

View Full DocumentRight Arrow Icon
Image of page 16
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 37

EE 230 Lecture 14 Spring 2010 - EE 230 Lecture 14 Basic...

This preview shows document pages 1 - 16. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online