EEN 204 Lab Report 3 (RC circuits)

EEN 204 Lab Report 3 (RC circuits) - UNIVERSITY OF MIAMI...

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UNIVERSITY OF MIAMI Department of Electrical and Computer Engineering EEN 204 Name: __________________ Section: __________________ Date: __________________ EXPERIMENT 3 TRANSIENT ANALYSIS OF SIMPLE RC CIRCUITS PURPOSE: In this experiment we study the natural behavior of RC circuits and the responding time and pattern of capacitors connected in different ways. We will prove that generally charging and discharging times are equal. However, due to other elements in the circuit they can differ. Equipment 2 Variable resistance boxes 1 0.1 μ F capacitor 1 Digital Oscilloscope 1 Frequency Generator 1 1N4001 Diode EEN 204 Laboratory 1 EXPERIMENT 3
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I. RC Circuit with Square Wave Input : a) Set up the circuit shown in Fig. 3.1. Adjust the input voltage to vary from 0 to 5 V and a frequency of 500 Hz (make sure that there is no dc offset in the waveform by viewing the waveform in the DC mode of the oscilloscope and varying the DC level knob in the signal generator). Make R = 1 k and C = 0.1 μ F. Note that you must account for the internal resistance of the signal generator for the theoretical calculations. v in + - R C v (t) c + - f = 500 Hz R = 50 s Figure 3.1 Driven RC network. b) Calculate the time constant of the charging path, (R S +R)C c = 0.105 ms c) Calculate the time constant of the discharging path, RC τ d = 0.1 ms d) Sketch the waveform of the voltage across the capacitor, V c
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EEN 204 Lab Report 3 (RC circuits) - UNIVERSITY OF MIAMI...

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