First order filters.docx

# First order filters.docx

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First order filters By Mario Bou Jaoude Joe Abi Khattar Presented to Mr. Nassif DAOUD A formal report for the Circuit Lab ELEN 303 Faculty of Engineering University of Balamand

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1)Objective: The main purpose of this experiment is to study the high pass and low pass filters. 2) Procedure: A- Low pass filter
B-High pass filter 3) Data: A- Low pass filter Frequency  Vin pp Vout gain  10HZ 2 9.22 4.61 20Hz 2 9.31 4.655 50Hz 2 9.31 4.655

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Frequency  Vin pp Vout gain  100Hz 2 9.44 4.72 200Hz 2 9.36 4.68 500Hz 2 9.11 4.555 1Khz 2 8.90 4.45 2KHz 2 7.94 3.97 10KHz 2 4.01 2.005 20KHz 2 2.1 1.05 50KHz 2 701 0.3505 100KHz 2 321 0.1605 V = = 6.65 v Cutoff frequency Fc = 3.39 KHz , we change the frequency until we see 6.65 v on the oscilloscope then we get the corresponding frequency. B-High pass filter Frequency  Vin pp Vout gain  10HZ 2 176 88 20Hz 2 190 95 50Hz 2 35.4 17.7 100Hz 2 70.22 35.11 200Hz 2 133 66.5 500Hz 2 311 155.5
Frequency  Vin pp Vout gain  1Khz 2 622 311 2KHz 2 1.21 0.605 10KHz 2 2.87 1.435 20KHz 2 3.03 1.515 50KHz 2 3.04 0.00152 100KHz 2 3.04 0.00152 V = = 2.16 v Cutoff = 4.555 KHz same way as the first cut off frequency .

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4) Discussion of Results:
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• Winter '19
• High-pass filter, Low-pass filter, High Pass, University of Balamand, Mr. Nassif Daoud, Mario Bou Jaoude

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