IndexExperience SummaryTopics for DiscussionTime RequiredThis laboratory experiment is performed to find out the center frequency of the bandpass filter. The center frequency was found with the help of the circuit diagram and the data table formed from the observations. A stack of low and high bandpass filters was also prepared in this laboratory experiment. A pair of polarized capacitors was used during the experiment. This pair of biased capacitors with resistors was used to control the cutoff frequency. These capacitors were specially added to increase the capacitance since the capacitance of the capacitors depends on how they are connected. In this experiment, the band pass filter is formed with the help of low pass filters and high pass filters connected opposite each other, so that the band pass filter can pass the signals having both frequency ranges together low than high ones. Say no to plagiarism. Get a tailor-made essay on "Why Violent Video Games Shouldn't Be Banned"? Get an Original Essay A band pass filter can pass signals with a certain band or frequency without distorting any of the input signals or producing any noise. The band of the various frequencies can have any width, and this width is called the filter bandwidth. The cascade process can form the band pass filter. As part of this process, the high pass and low pass filter cascade is performed. Cascading the low pass and high pass filter means using the output of the first filter as the input of the second filter. The band pass filter can be used to isolate frequencies that are within a particular band or group of frequencies. Each filter section remembers the frequencies of the previous filter. High pass and low pass filters have resistors and capacitors that interchange to form the band pass filter. The various applications where the bandpass filter is used have wider range filter bands and frequencies made up of mixed signals. The circuit used to filter frequencies is designed by combining the properties of low and high band pass filters. This band pass filter is designed to pass signals in frequency bands. Bandwidth can also be defined as the frequency ranges that exist anywhere between the cutoff frequencies of the low pass and high pass filter or frequency band. The cutoff frequency 1, or we can say CF1, is the lowest frequency at which the transfer function of the signals has the maximum value equivalent to /v2. Cutoff frequency 2 is the highest frequency at which the signal transfer function has maximum values equivalent to al/v2. The center frequency is the frequency at which the transfer of signal function is maximum. The circuit diagram above denotes a 741 op amp circuit. This circuit has two resistors and two capacitors. R1 = 2.2 kO, R2 = 22 kO, C1 = 10 nF, C2 = 4.7 nF Center Frequency H In the above equation: fr represents the center frequency. fL represents the lower cutoff frequency point. fH represents the highest cutoff frequency point. Using the above circuit information, we found the cutoff frequencies of the low pass and high pass filters in this lab report. The circuit input voltage calculated by applying sine waves is used to estimate the circuit output voltage. In this lab report we calculated and compared the cutoff frequency of low pass and high pass filters. In this report we also calculated the experimental center frequency..
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