Active_Filters_Solutions

# Active_Filters_Solutions - EE 2011 Practice Problems Active...

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EE 2011 Practice Problems Active Filters Solutions Q1 For the circuit diagrammed below: a) Find H(s). b) Draw a straight line Bode plot of the magnitude of H(s). Show the location of each corner frequency and the magnitude at the corner. Solution: H(s) = -90,000 (s+50)/(s(s+500)) A dB 200 11.1 uF 100 uF 2000 Vout Vin 45 dB -20 dB/dec -20 dB/dec

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Q2 Using resistors and capacitors, construct a feedback network, Zf, for the op-amp circuit diagrammed below that will give the straight-line Bode plot approximation shown, when the circuit’s transfer function gain is plotted. Draw the schematic for Zf and label component values. Solution: Zf will consist of a 100 ohm resistor in series with a 1 uF capacitor, all in parallel with a 10000 ohm resistor 1000 Zf 20 dB -20 dB 100 Vin Vout H(j ) dB 10000 10 1000
Q3 For the circuit diagrammed below: a) Find H(s). b) Draw a straight line Bode plot of the magnitude of H(s). Show the location of each corner frequency and the magnitude at the corner.

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## This note was uploaded on 12/14/2010 for the course ECE 2011 taught by Professor Imbertson during the Fall '10 term at Minnesota.

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Active_Filters_Solutions - EE 2011 Practice Problems Active...

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