PPT-Chapter 13 Sinusoidal Alternating Waveforms

AC Voltage Definition General format for the sinusoidal V or I Phase relation Effective value 1 Introduction 2 AC Circuits AC voltage or current changes with time   AC Generators AC Waveform. However many waveforms are neither direct nor sinusoidal as seen in figure 2 It can be seen that the waveforms of Figure 2 a b c and d are unidirectional although not purely direct Waveforms of Figure 2 e and f are repetitive waveforms with zero mea A sinusoidal function is a pur e oscillation like cos or sin or mor e generally cos As you can see the last form includes both of the pr evious two by letting 1 and 0 or 2 In the temperatur e model sinusoidal input could epr esent the diurnal da Professor Ahmadi. and Robert Proie. Objectives. Learn to Mathematically Describe Sinusoidal Waves. Refresh Complex Number Concepts. Describing a Sinusoidal Wave. Sinusoidal Waves. Described by the equation. Sinusoidal 1. Denitions f (t)= A cos(wt f).(1) The function  A 0 is its amplitude: how high the graph of f (t) rises above the t-axis  t = f/w is its time delay or time lag: how far alo Principles and Methods of Electric Power Conversion. Semiconductor Power Switches. Supplementary Components and Systems. AC-to-DC Converters. AC-to-AC Converters. DC-to-DC Converters. DC-to-AC Converters. Learning Outcomes. Distinguish between alternating and direct current.. State . the frequency of UK mains electricity.. Describe . how the potential of the live wires varies each cycle.. State . that the potential of the neutral wire is approximately . Calc. BC. Objectives. Use the Alternating Series Test to determine whether an infinite series converges.. Use the Alternating Series Remainder to approximate the sum of an alternating series.. The simplest series that contain both positive and negative terms is an . The parent function . y . = sin(. x. ) can be transformed using four parameters. . Each parameter describes . a certain characteristic of the graph. .. y . = . A. sin. [. B. (. x . – . C. )] . D. Sinusoidal Graphs. Sinusoidal Graphs. Periodic Function. Graphs of sine and cosine functions.. Functions whose graphs have a repeating pattern.. Period. The horizontal length of each cycle in a periodic graph.. AUTHORS. . Dr. Michael Pyper;. . ST4. . (mpyper02@qub.ac.uk). Dr. Maria McGill;. . ST5.. Dr. . Raghu. . Sathya. ; . Consultant Interventional and GI Radiologist.. No Class on Wednesday March 8. Labs taught by Dr. . Mahes. on Monday and Tuesday.. No quiz on . Friday, March 10. Exam 2 on Friday, March 24, study guide posted online. Current from a battery flows steadily in one direction (direct current, DC). Current from a power plant varies sinusoidally (alternating current, AC).. What is the need for an AC circuit?. The generation of single phase voltage.. The relation between time and angle.. The maximum, average and effective value.. The form factor and peak factor.. Phasor representation of sinusoidal waveform.. AC. )?. Why the AC generated? What is the need for an AC circuit?. Alternating Current Waveforms. Different (Alternating) Sinusoidal Current Waveform Generators. There are 2 types of Current. DC = Direct Current . Copy of Katsushika Hokusai . The Great Wave off Kanagawa . at . http://commons.wikimedia.org/wiki/File:The_Great_Wave_off_Kanagawa.jpg . Domains. Images can be represented in different domains. Spatial domain – the strength of light at points in space.