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# lab1doc - DrewBarbier 4431 EE32214 Lab12: September10,2005...

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Drew Barbier 4431 EE 3221-4 Lab 12: Introduction to PSPICE and AC Voltage Dividers September 10, 2005 Lab Partner:  Mariel Losso

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Objective:   To gain familiarity with PSPICE, and to review in greater detail the ac  voltage dividers studied in Experiment 4. Part 1: Procedure:     An RC lowpass filter was to be designed that had a break frequency between 4kHz and  5khz.  The equation R 1 c can be used where  2 f .  picking a .1uF capacitor and  solving the equation once for 4kHz and again for 5kHz gives a resistor value between  about 315 Ω  to about 400 Ω,  so a 330 Ω  resistor was used. The output is measured at the  node shared between the resistor and capacitor.  The output is to be measured at  frequencies of 2kHz, 4kHz, 8kHz, and 10kHz. Measurements/Plots:    The chart was used to plot the output voltage as a function of the frequency Illustration 1: Fig.1 Frequency Vin Vout Phase Shift 2k 5 4.32 31uS 4k 5 3.41 28.5uS 6k 4.6 2.82 18.2uS 8k 4.47 2.26 20.9uS 10k 4.42 1.99 15.7uS
Questions:    The digital meter does not observe 5 volts, why not? Because it is more percise

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## This note was uploaded on 02/21/2012 for the course EE 3232 taught by Professor Feldman during the Fall '10 term at LSU.

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lab1doc - DrewBarbier 4431 EE32214 Lab12: September10,2005...

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