su10q08 - L , what would you replace C with in the transfer...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
ECE 3050 Analog Electronics Quiz 8 July 14, 2010 Professor Leach Name Instructions. No calculators allowed on this quiz. Print your name in the space above. Honor Code: I have neither given nor received help on this quiz. Initials 1. The straight line asymptotic approximation and smooth curve for the Bode magnitude plot of a transfer function is given. The horizontal axis is the radian frequency. What is the transfer function? T ( s ) = 200 s/ 300 1 + s/ 300 1 1 + s/ 300 1 + s/ 5000 1 + s/ 30000 or = 200 ( s/ 300)(1 + s/ 5000) (1 + s/ 300) 2 (1 + s/ 30000) or = 2 3 s (1 + s/ 5000) (1 + s/ 300) 2 (1 + s/ 30000) over 1
Background image of page 1

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

View Full DocumentRight Arrow Icon
2. A two-terminal RC network is shown. (a) Solve for the impedance transfer function Z ( s ) . Put it into standard form where all pole and zero terms are of the form (1 + τs ) , where τ is a time constant. (b) Sketch and label the straight line Bode magnitude plot for the impedance. You should be able to sketch it and label the y-axis values without the transfer function. (c) If the capacitor is replaced with an inductor
Background image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: L , what would you replace C with in the transfer function to obtain the new transfer function? (d) If a second capacitor C 2 is inserted in series with R 1 , how would you modify the transfer function obtained in part (a)? Show how you would combine the two terms to obtain the new transfer function, i.e. in the form of the ratio of two polynomials. You do not need to factor any quadratic terms in the new transfer function. (a) Z ( s ) = R dc 1 + z s 1 + p s = ( R 1 + R 2 ) 1 + ( R 1 b R 2 + R 3 ) Cs 1 + ( R 2 + R 3 ) Cs (b) starts out at R dc breaks to-1 slope at 1 / p and back to slope at 1 / z at the value R 1 + R 2 b R 3 (c) Replace Cs with 1 Ls or C with 1 Ls 2 (d) Z ( s ) = 1 C 2 s + R dc 1 + z s 1 + p s = 1 + p s + R dc C 2 s (1 + z s ) C 2 s (1 + p s ) = 1 + ( p + R dc C 2 ) s + R dc C 2 z s 2 C 2 s (1 + p s ) 2...
View Full Document

Page1 / 2

su10q08 - L , what would you replace C with in the transfer...

This preview shows document pages 1 - 2. Sign up to view the full document.

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