# HW 10 - Arun Swain aps97 ECE 2100 HW#10 To create a...

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Arun Swain aps97 ECE 2100 HW #10 To create a bandpass filter, we used a combination of low pass and high pass filters. We started off by building a high pass with a gain of 10 and then connected its output as the input to a low pass filter. The high pass filter had a break frequency of 50 Hz so that we for the first stage, we would pass all signals with frequency greater than 50 Hz and then use the low pass filter which had a break frequency of 20 KHz. This way we created a bandpass filter which passed signals between 50 Hz and 20 KHz as per the instructions in the lab. The circuit is shown in Figure 1. In order to build this circuit and pick values for the capacitors and resistors, I used the formula: f B = 1/(2πRC) with f B denoting the break frequency. I used 0.47 μF for C 1 and 220 pF for C 2 and using these values and the values of break frequency for each filter, I was able to calculate the values of the resistors. To calculate the value of the other remaining resistors, R2 and R4, I used the fact that they were inverting amplifiers Rf/Rs

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## This note was uploaded on 03/31/2009 for the course ECE 210 taught by Professor Staff during the Spring '08 term at Cornell.

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HW 10 - Arun Swain aps97 ECE 2100 HW#10 To create a...

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