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BANDWIDTH - 14181_41
FILTERS

Neets Module 09-Introduction to Wave-Generators and Wave-Shaping Circuits
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1-30 below the resonant frequency point. The two points are designated upper frequency cutoff (fco) and lower frequency cutoff (fco) or simply f1 and f2. The range of frequencies between these two points comprises the bandwidth. Views (A) and (B) of figure 1-12 illustrate the bandwidths for low- and high-Q resonant circuits. The bandwidth may be determined by use of the following formulas: For example, by applying the formula we can determine the bandwidth for the curve shown in figure 1-12, view (A). If the Q of the circuit represented by the curve in figure 1-12, view (B), is 45.5, what would be the bandwidth? If Q equals 7.95 for the low-Q circuit as in view (A) of figure 1-12, we can check our original calculation of the bandwidth.






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