EE 40 Final Lab: An Audio AmplifierPart 1: Power SupplyReport1 Analyzing The TransformerSketch Vout:1020Voltage (V)8 162432Time (ms)-10-201EE 43/100 FINAL PROJECT:AN AUDIO AMPLIFIEREE 40 Final Lab: An Audio Amplifier 2What is the maximum voltage you see at Vout? What is the minimum?Howvdoes the waveform differ from your expectations, and why is it this way?2 Adding In The Bridge RectifierSketch Vout:1020Voltage (V)8 162432Time (ms)What is the maximum voltage you see at Vout? What is the minimum?What is the frequency of Vout?Why?EE 43/100 - Final Project: Audio Amplifier, Part IEE 40 Final Lab: An Audio Amplifier 33 Analyzing The Bridge RectifierSketch Vout:1020Voltage (V)8 162432Time (ms)What is the average voltage seen at Vout?4 Bridge Rectifier RippleUse your oscilloscopes to measure Vripplefor this very simple AC to DC converter. What is the frequency ofthis ripple voltage?5 Linear Voltage RegulatorSketch Vout:EE 43/100 - Final Project: Audio Amplifier, Part IEE 40 Final Lab: An Audio Amplifier 41020Voltage (V)8 162432Time (ms)What is the average value (DC component) of Vout?WhatisVripple?6 Response To A Changing LoadSketch Voutand ILon the same axes:12Vout (V)8 162432Time (ms)11.912.212.112.311.811.7IL(mA)0100200300Approximately how long does the v-reg take to stabilize the output voltage?EE 43/100 - Final Project: Audio Amplifier, Part I5.35.25.15.04.94.84.7105EE 40 Final Lab: An Audio Amplifier 57 EfficiencyOutput power measurement:Average input power measurement and calculation:What is the total efficiency including the transformer?Why is this efficiency so low? Where did all the excess power go? How can we build a better AC to DCEE 43/100 - Final Project: Audio Amplifier, Part IEE 40 Final Lab: An Audio Amplifier 6converter?EE 43/100 - Final Project: Audio Amplifier, Part
View Full Document
Unlocking...