Measure the critical frequency of the high-pass RC filter in Figure 19-3. If you are looking at a plot of voltage versus resistance or current versus. This circuit is the same as in textbook Figure 19-14. Solution The bode plotter in Figure 19-4 shows the cursor positioned at –2.923 dB, which is as close to –3 dB as the simulation allows in this case. The critical frequency displayed by the bode plotter is 10.471 kHz. Simulation Connect the high-pass filter in Figure 19-3 and measure the critical frequency. Measure the center frequency of the bandpass filter in Figure 19-5. Solution The bode plotter in Figure 19-6 shows the response curve and the cursor indicates a center frequency of 7.943 kHz. The SPICE/Multisim bode plots showing this artifact is at right.SimulationConnect the bandpass filter in Figure 19-5 and measure the critical frequency. Connect the circuit in Figure 19-1 and use the bode plotter to observe the change in the response curve when the capacitance is increased. Measure the bandwidth for the filter in Figure 19-5.Ĭopyright © 1995-2010, Pearson Education, Inc.The Bode Plot is the frequency response plot of linear systems represented in the form of logarithmic plots.The bode plots also show the predicted frequency response (middle plot, 10 dB/division).
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