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Unformatted text preview: at which C F starts to become a short circuit. What is V o /V i in the band between these two frequencies? Answer: − R F /R 2 (c) For ω → ∞ , what is V o /V i ? Answer: (d) Use the information from parts (a) through (c) to sketch the general form of the straight-line approximation to the Bode magnitude plot. (e) Solve for the transfer function for V o /V i and use it to solve for the equations for the break frequencies 1 in the Bode plot of part (d). V o V i = − Z F Z 1 = − R F 1 + R F C F s ( R 1 + R 2 ) 1 + R 1 C 1 s 1 + R 1 k R 2 C 1 s = − R F R 1 + R 2 1 + R 1 k R 2 C 1 s (1 + R 1 C 1 s ) (1 + R F C F s ) Zero at ω = 1 / ( R 1 k R 2 C 1 ) . Poles at ω = 1 /R 1 C 1 and ω = 1 /R F C F 2...
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This note was uploaded on 05/26/2011 for the course ECE 3050 taught by Professor Hollis during the Summer '08 term at Georgia Tech.
- Summer '08