For the RC circuit shown in Fig. D.44, obtain the magnitude plot of the output voltage vo for frequencies from 1 Hz to 10 kHz. Let R = 1 kΩ and C = 4 µF.

Question

For the RC circuit shown in Fig. D.44, obtain the magnitude plot of the output voltage [latex]v_{o}[/latex] for frequencies from 1 Hz to 10 kHz. Let R = 1 kΩ and C = 4 µF.

Accepted Answer

The schematic is shown in Fig. D.45. We assume that the magnitude of V1 is 1 and its phase is zero; we enter these as the attributes of V1. We also assume 10 points per decade. For the AC sweep specifications, we select Analysis/Setup/AC Sweep and enter 10 in the Total Pts box, 1 in the Start Freq box, and 10k in the Final Freq box. After saving the circuit, we select Analysis/Simulate. From the Probe menu, we obtain the plot in Fig. D.46(a) by selecting Traces/Add and clicking V(2). Also, by selecting Trace/Add and typing dB(V(2)) in the Trace Command box, we obtain the Bode plot in Fig. D.46(b). The two plots in Fig. D.46 indicate that the circuit is a lowpass filter: low frequencies are passed while high frequencies are blocked by the circuit.

Question D.7: For the RC circuit shown in Fig. D.44, obtain the magnitude ...

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