Circuits with inductors and alternating currents. Chapter 20 #45, 46, 47, 49


 Melanie Reed
 5 years ago
 Views:
Transcription
1 Circuits with inductors and alternating currents Chapter 20 #45, 46, 47, 49
2 RL circuits Ch. 20 (last section) Symbol for inductor looks like a spring. An inductor is a circuit element that has a large inductance. (usually a coil of wire). Because of the inductance in a RL circuit, the current changes gradually. When you close a switch, the current takes time to go from zero to its maximal value.
3 The time it takes for the current to rise depends on the time constant. In a RC circuit, time constant ( ) depended on the resistance and the capacitance. = RC In a RL circuit, = L/R See graph of current vs. time on pg. 684 After each time constant, the current rises to 63.2% of the remainder to the max value. I R (1 e t / ) I R (1 e Rt / L )
4 RL circuit The larger the time constant the longer it takes for the current to reach its maximum value. = L/R increase inductance, increase increase resistance, decrease Note the difference between RL and RC circuits.
5 Behavior of the inductor Take a RL circuit with the switch open. (fig ) When the switch is closed, the current is changing the most rapidly. The back emf from the inductor is largest at this time. As the current approaches the steady state value, the back emf is reduced. After a long time, the inductor behaves like a ordinary wire. Do example 20.8.
6 Ch. 21 AC circuits concept # 2, 8, 13, 15 problems# 1, 5, 7, 9, 11, 13, 14, 18, 19, 29, 37, 39, 43, 45, 47
7 AC circuit consists of an AC generator or other AC source hooked up to electrical devices: capacitors, resistors, inductors The voltage alternates between a maximum and minimum value. The output is a sinusoidal wave v = V max sin 2 ft v = instantaneous voltage f = frequency at which the voltage changes t = time
8 The current spends just as much time going current in one direction as it does with the current going the opposite direction. The average current is zero. RMS current (I rms ) The square root of the mean of the square I rms = Imax Imax 2
9 For the AC circuit with the resistor. The current and the voltage peak at the same time. See fig. on pg 697 for a AC circuit with a resistor. They are said to be in phase. applying Ohm s law V V rms = max V max V rms = I rms R and V max = I max R Average Power: P ave I 2 rms R
10 Capacitors in AC circuit Circuit with AC source and capacitor: At initial time there is no charge on the capacitor. The current is maximum then because there is no charge to fight the new charges from moving onto the plates. The current decreases as the charge build up. (the voltage across capacitor increases) When the current reverses direction, the voltage drops because the plates are losing their charge. This process repeats over an over again. See the figures on page 700.
11 Capacitors in AC circuit The current peaks before the voltage. The current and voltage are not in phase. The voltage lags behind the current by Impeding effect of a capacitor is called the capacitance reactance X c. X c = 1/(2 fc) X c depends on the fequency V c,rms = I rms X c
12 Inductors in AC circuit Inductor is a coil and due to Faraday s law the inductor impedes a changing current. The effective resistance of an inductor is called the inductive reactance, X L. X L = 2 fl depends on frequency. Because of the inductance, the current lags behind the voltage. They are out of phase. See fig on pg 701. The voltage peaks before the current.
13 RLC circuit Now a resistor, capacitor, and inductor are all in an AC circuit. Because the voltages across all the components are not in phase, we cannot just add them together. They need to be added like vectors. See figures 21.9 and The total impedance, Z, of the circuit is 2 2 defined as: Z R ( X L X C ) V max = I max Z see table 21.2
14 Phase shift between potential difference and current is. tan X L X C R see figure 21.11
15 Power in AC circuit Energy stored in capacitor is PE c = ½ C( V max ) 2 During half of a cycle the capacitor is charged. During the other half the charge returns to the voltage source. Average power supplied by the source is zero. No power losses occur in capacitor in AC circuit.
16 Energy stored in inductor is PE L = ½ L(I max ) 2 The current source does work against the back emf of the inductor. When the current decreases the stored energy is returned to the source as the inductor attempts to maintain the current in the circuit. There is no power loss through the inductor. All the power in RLC circuit is converted to internal energy in the resistor. 2 In RLC circuit P av I rms R
17 power P av I 2 rms R P av I rms V R V R V rms cos P av I rms V rms cos cos = power factor The power depends on the phase shift between the current and voltage. If a large generator has a large inductance, capacitors can be used to shift the phase.
18 Resonance in series RLC circuit. I rms When the impedance has its minimum value the current is maximized. This happens when: X L = X C Then Z = R V Z rms R This happens when the frequency of the circuit is just right. Called the resonance frequency. 2 V rms ( X X ) L C 2
19 Resonance frequency. To find the resonance frequency, f 0. Set the X L = X C 2 f 0 L = 1/(2 f 0 C) f LC See fig At f = f 0, the current spikes. If the resistance was zero, the current would become infinite.
20 Transformer Used to change the magnitude of an AC voltage. Works on basis of Faraday s Law. Simple transformer is made up of 2 coils wrapped around a soft iron core. When the current through the primary coil changes, the flux through the secondary coil changes producing an induced emf. The voltages in each coil is proportional to the number of turns in the coil.
21 Transformer V 1 = N 1 B / t and V 2 = N 2 B / t Assuming no flux is lost in the iron core, the term B/ t is common to both coils. V 2 = (N 2 /N 1 ) V 1 When N 2 >N 1 the voltage is increased, step up transformer. When N 2 < N 1 the voltage is decreased, step down transformer.
22 The power input to the primary coil equals the power output at the secondary coil for an ideal transformer. (No power loss) I 1 V 1 = I 2 V 2 So for a step up transformer the voltage is increased, but the current is decreased. In a real transformer, there is some power loss due to eddy currents in the iron core. Real transformers have efficiencies ranging from 90%  99%.
23 Power lost due to the currents in transmission lines is lost as resistive heating. P = I 2 R Want the current to be as small as possible to reduce power loss. More economical to transmit electric power using high voltage and low current.
Chapter 35 Alternating Current Circuits
hapter 35 Alternating urrent ircuits acircuits Phasor Diagrams Resistors, apacitors and nductors in acircuits R acircuits acircuit power. Resonance Transformers ac ircuits Alternating currents and
More informationInduced voltages and Inductance Faraday s Law
Induced voltages and Inductance Faraday s Law concept #1, 4, 5, 8, 13 Problem # 1, 3, 4, 5, 6, 9, 10, 13, 15, 24, 23, 25, 31, 32a, 34, 37, 41, 43, 51, 61 Last chapter we saw that a current produces a magnetic
More informationDiodes have an arrow showing the direction of the flow.
The Big Idea Modern circuitry depends on much more than just resistors and capacitors. The circuits in your computer, cell phone, Ipod depend on circuit elements called diodes, inductors, transistors,
More informationAlternating Current Circuits and Electromagnetic Waves
Arecibo, a large radio telescope in Puerto Rico, gathers electromagnetic radiation in the form of radio waves. These long wavelengths pass through obscuring dust clouds, allowing astronomers to create
More informationHomework #11 20311721 Physics 2 for Students of Mechanical Engineering
Homework #11 20311721 Physics 2 for Students of Mechanical Engineering 2. A circular coil has a 10.3 cm radius and consists of 34 closely wound turns of wire. An externally produced magnetic field of
More informationEDEXCEL NATIONAL CERTIFICATE/DIPLOMA UNIT 5  ELECTRICAL AND ELECTRONIC PRINCIPLES NQF LEVEL 3 OUTCOME 4  ALTERNATING CURRENT
EDEXCEL NATIONAL CERTIFICATE/DIPLOMA UNIT 5  ELECTRICAL AND ELECTRONIC PRINCIPLES NQF LEVEL 3 OUTCOME 4  ALTERNATING CURRENT 4 Understand singlephase alternating current (ac) theory Single phase AC
More informationInductors in AC Circuits
Inductors in AC Circuits Name Section Resistors, inductors, and capacitors all have the effect of modifying the size of the current in an AC circuit and the time at which the current reaches its maximum
More informationChapter 11. Inductors ISU EE. C.Y. Lee
Chapter 11 Inductors Objectives Describe the basic structure and characteristics of an inductor Discuss various types of inductors Analyze series inductors Analyze parallel inductors Analyze inductive
More informationEðlisfræði 2, vor 2007
[ Assignment View ] [ Print ] Eðlisfræði 2, vor 2007 30. Inductance Assignment is due at 2:00am on Wednesday, March 14, 2007 Credit for problems submitted late will decrease to 0% after the deadline has
More informationε: Voltage output of Signal Generator (also called the Source voltage or Applied
Experiment #10: LR & RC Circuits Frequency Response EQUIPMENT NEEDED Science Workshop Interface Power Amplifier (2) Voltage Sensor graph paper (optional) (3) Patch Cords Decade resistor, capacitor, and
More information2. A conductor of length 2m moves at 4m/s at 30 to a uniform magnetic field of 0.1T. Which one of the following gives the e.m.f. generated?
Extra Questions  2 1. A straight length of wire moves through a uniform magnetic field. The e.m.f. produced across the ends of the wire will be maximum if it moves: a) along the lines of magnetic flux
More informationPhysics 2102 Lecture 19. Physics 2102
Physics 2102 Jonathan Dowling Physics 2102 Lecture 19 Ch 30: Inductors and RL Circuits Nikolai Tesla What are we going to learn? A road map Electric charge Electric force on other electric charges Electric
More informationSlide 1 / 26. Inductance. 2011 by Bryan Pflueger
Slide 1 / 26 Inductance 2011 by Bryan Pflueger Slide 2 / 26 Mutual Inductance If two coils of wire are placed near each other and have a current passing through them, they will each induce an emf on one
More informationSolution Derivations for Capa #11
Solution Derivations for Capa #11 Caution: The symbol E is used interchangeably for energy and EMF. 1) DATA: V b = 5.0 V, = 155 Ω, L = 8.400 10 2 H. In the diagram above, what is the voltage across the
More informationChapter 12 Driven RLC Circuits
hapter Driven ircuits. A Sources... . A ircuits with a Source and One ircuit Element... 3.. Purely esistive oad... 3.. Purely Inductive oad... 6..3 Purely apacitive oad... 8.3 The Series ircuit...
More informationAlternatingCurrent Circuits
hapter 1 Alternatingurrent ircuits 1.1 A Sources... 11. Simple A circuits... 13 1..1 Purely esistive load... 13 1.. Purely Inductive oad... 15 1..3 Purely apacitive oad... 17 1.3 The Series ircuit...
More informationLine Reactors and AC Drives
Line Reactors and AC Drives Rockwell Automation Mequon Wisconsin Quite often, line and load reactors are installed on AC drives without a solid understanding of why or what the positive and negative consequences
More informationRLC Series Resonance
RLC Series Resonance 11EM Object: The purpose of this laboratory activity is to study resonance in a resistorinductorcapacitor (RLC) circuit by examining the current through the circuit as a function
More information45. The peak value of an alternating current in a 1500W device is 5.4 A. What is the rms voltage across?
PHYS Practice Problems hapters 8 hapter 8. 45. The peak value of an alternating current in a 5W device is 5.4 A. What is the rms voltage across? The power and current can be used to find the peak voltage,
More informationBASIC ELECTRONICS AC CIRCUIT ANALYSIS. December 2011
AM 5202 BASIC ELECTRONICS AC CIRCUIT ANALYSIS December 2011 DISTRIBUTION RESTRICTION: Approved for Pubic Release. Distribution is unlimited. DEPARTMENT OF THE ARMY MILITARY AUXILIARY RADIO SYSTEM FORT
More informationProperties of electrical signals
DC Voltage Component (Average voltage) Properties of electrical signals v(t) = V DC + v ac (t) V DC is the voltage value displayed on a DC voltmeter Triangular waveform DC component Halfwave rectifier
More informationEE301 Lesson 14 Reading: 10.110.4, 10.1110.12, 11.111.4 and 11.1111.13
CAPACITORS AND INDUCTORS Learning Objectives EE301 Lesson 14 a. Define capacitance and state its symbol and unit of measurement. b. Predict the capacitance of a parallel plate capacitor. c. Analyze how
More informationFirst Year (Electrical & Electronics Engineering)
Z PRACTICAL WORK BOOK For The Course EE113 Basic Electrical Engineering For First Year (Electrical & Electronics Engineering) Name of Student: Class: Batch : Discipline: Class Roll No.: Examination Seat
More informationW03 Analysis of DC Circuits. Yrd. Doç. Dr. Aytaç Gören
W03 Analysis of DC Circuits Yrd. Doç. Dr. Aytaç Gören ELK 2018  Contents W01 Basic Concepts in Electronics W02 AC to DC Conversion W03 Analysis of DC Circuits (self and condenser) W04 Transistors and
More informationLecture 24. Inductance and Switching Power Supplies (how your solar charger voltage converter works)
Lecture 24 Inductance and Switching Power Supplies (how your solar charger voltage converter works) Copyright 2014 by Mark Horowitz 1 Roadmap: How Does This Work? 2 Processor Board 3 More Detailed Roadmap
More informationElectrical Resonance
Electrical Resonance (RLC series circuit) APPARATUS 1. RLC Circuit board 2. Signal generator 3. Oscilloscope Tektronix TDS1002 with two sets of leads (see Introduction to the Oscilloscope ) INTRODUCTION
More informationEE 1202 Experiment #4 Capacitors, Inductors, and Transient Circuits
EE 1202 Experiment #4 Capacitors, Inductors, and Transient Circuits 1. Introduction and Goal: Exploring transient behavior due to inductors and capacitors in DC circuits; gaining experience with lab instruments.
More informationAC Generators. Basic Generator
AC Generators Basic Generator A basic generator consists of a magnetic field, an armature, slip rings, brushes and a resistive load. The magnetic field is usually an electromagnet. An armature is any number
More informationThree phase circuits
Three phase circuits THREE PHASE CIRCUITS THREEPHASE ADVANTAGES 1. The horsepower rating of threephase motors and the kva rating of threephase transformers are 150% greater than singlephase motors
More informationDOE FUNDAMENTALS HANDBOOK ELECTRICAL SCIENCE Volume 3 of 4
DOEHDBK1011/392 JUNE 1992 DOE FUNDAMENTALS HANDBOOK ELECTRICAL SCIENCE Volume 3 of 4 U.S. Department of Energy Washington, D.C. 20585 FSC6910 Distribution Statement A. Approved for public release;
More informationInductors & Inductance. Electronic Components
Electronic Components Induction In 1824, Oersted discovered that current passing though a coil created a magnetic field capable of shifting a compass needle. Seven years later, Faraday and Henry discovered
More information7.1 POWER IN AC CIRCUITS
C H A P T E R 7 AC POWER he aim of this chapter is to introduce the student to simple AC power calculations and to the generation and distribution of electric power. The chapter builds on the material
More informationDirection of Induced Current
Direction of Induced Current Bar magnet moves through coil Current induced in coil A S N v Reverse pole Induced current changes sign B N S v v Coil moves past fixed bar magnet Current induced in coil as
More informationPhysics 6C, Summer 2006 Homework 2 Solutions
Physics 6C, Summer 006 Homework Solutions All problems are from the nd edition of Walker. Numerical values are different for each student. Chapter 3 Problems. Figure 330 below shows a circuit containing
More informationProblem Solving 8: RC and LR Circuits
MASSACHUSETTS INSTITUTE OF TECHNOLOGY Department of Physics Problem Solving 8: RC and LR Circuits Section Table and Group (e.g. L04 3C ) Names Hand in one copy per group at the end of the Friday Problem
More informationUnderstanding Power Factor and How it Affects Your Electric Bill. Presented by Scott Peele PE
Understanding Power Factor and How it Affects Your Electric Bill Presented by Scott Peele PE Understanding Power Factor Definitions kva, kvar, kw, Apparent Power vs. True Power Calculations Measurements
More informationPHASOR DIAGRAMS HANDSON RELAY SCHOOL WSU PULLMAN, WA. RON ALEXANDER  BPA
PHASOR DIAGRAMS HANDSON RELAY SCHOOL WSU PULLMAN, WA. RON ALEXANDER  BPA What are phasors??? In normal practice, the phasor represents the rms maximum value of the positive half cycle of the sinusoid
More information12. Transformers, Impedance Matching and Maximum Power Transfer
1 1. Transformers, Impedance Matching and Maximum Power Transfer Introduction The transformer is a device that takes AC at one voltage and transforms it into another voltage either higher or lower than
More informationThe full wave rectifier consists of two diodes and a resister as shown in Figure
The FullWave Rectifier The full wave rectifier consists of two diodes and a resister as shown in Figure The transformer has a centretapped secondary winding. This secondary winding has a lead attached
More informationApplication Note. So You Need to Measure Some Inductors?
So You Need to Measure Some nductors? Take a look at the 1910 nductance Analyzer. Although specifically designed for production testing of inductors and coils, in addition to measuring inductance (L),
More informationLast time : energy storage elements capacitor.
Last time : energy storage elements capacitor. Charge on plates Energy stored in the form of electric field Passive sign convention Vlt Voltage drop across real capacitor can not change abruptly because
More information12. The current in an inductor is changing at the rate of 100 A/s, and the inductor emf is 40 V. What is its selfinductance?
12. The current in an inductor is changing at the rate of 100 A/s, and the inductor emf is 40 V. What is its selfinductance? From Equation 325, L = E=(dI =dt) = 40 V=(100 A/s) = 0.4 H. 15. A cardboard
More informationUnit/Standard Number. High School Graduation Years 2010, 2011 and 2012
1 Secondary Task List 100 SAFETY 101 Demonstrate an understanding of State and School safety regulations. 102 Practice safety techniques for electronics work. 103 Demonstrate an understanding of proper
More information104 Practice Exam 23/21/02
104 Practice Exam 23/21/02 1. Two electrons are located in a region of space where the magnetic field is zero. Electron A is at rest; and electron B is moving westward with a constant velocity. A nonzero
More informationBasic Electrical Technology Dr. L. Umanand Department of Electrical Engineering Indian Institute of Science, Bangalore. Lecture  33 3 phase System 4
Basic Electrical Technology Dr. L. Umanand Department of Electrical Engineering Indian Institute of Science, Bangalore Lecture  33 3 phase System 4 Hello everybody. So, in the last class we have been
More informationLecture  4 Diode Rectifier Circuits
Basic Electronics (Module 1 Semiconductor Diodes) Dr. Chitralekha Mahanta Department of Electronics and Communication Engineering Indian Institute of Technology, Guwahati Lecture  4 Diode Rectifier Circuits
More information8 Speed control of Induction Machines
8 Speed control of Induction Machines We have seen the speed torque characteristic of the machine. In the stable region of operation in the motoring mode, the curve is rather steep and goes from zero torque
More informationES250: Electrical Science. HW7: Energy Storage Elements
ES250: Electrical Science HW7: Energy Storage Elements Introduction This chapter introduces two more circuit elements, the capacitor and the inductor whose elements laws involve integration or differentiation;
More informationInductance. Motors. Generators
Inductance Motors Generators Selfinductance Selfinductance occurs when the changing flux through a circuit arises from the circuit itself. As the current increases, the magnetic flux through a loop due
More informationExperiment #11: LRC Circuit (Power Amplifier, Voltage Sensor)
Experiment #11: LRC Circuit (Power Amplifier, Voltage Sensor) Concept: circuits Time: 30 m SW Interface: 750 Windows file: RLC.SWS EQUIPMENT NEEDED Science Workshop Interface Power Amplifier (2) Voltage
More informationImpedance Matching and Matching Networks. Valentin Todorow, December, 2009
Impedance Matching and Matching Networks Valentin Todorow, December, 2009 RF for Plasma Processing  Definition of RF What is RF? The IEEE Standard Dictionary of Electrical and Electronics Terms defines
More informationChapter 25 Alternating Currents
Physics Including Human Applications 554 Chapter 25 Alternating Currents GOALS When you have mastered the contents of this chapter, you will be able to achieve the following goals: Definitions Define each
More informationDesign Considerations for an LLC Resonant Converter
Design Considerations for an LLC Resonant Converter Hangseok Choi Power Conversion Team www.fairchildsemi.com 1. Introduction Growing demand for higher power density and low profile in power converter
More informationChapter 12: Three Phase Circuits
Chapter 12: Three Phase Circuits 12.1 What Is a Three Phase Circuit? 12.2 Balance Three Phase Voltages 12.3 Balance Three Phase Y to Y Connection 12.4 Other Balance Three Phase Connections 12.5 Power in
More informationCapacitors in Circuits
apacitors in ircuits apacitors store energy in the electric field E field created by the stored charge In circuit apacitor may be absorbing energy Thus causes circuit current to be reduced Effectively
More informationAircraft Electrical System
Chapter 9 Aircraft Electrical System Introduction The satisfactory performance of any modern aircraft depends to a very great degree on the continuing reliability of electrical systems and subsystems.
More informationRLC Resonant Circuits
C esonant Circuits Andrew McHutchon April 20, 203 Capacitors and Inductors There is a lot of inconsistency when it comes to dealing with reactances of complex components. The format followed in this document
More informationEnergy in Electrical Systems. Overview
Energy in Electrical Systems Overview How can Potential Energy be stored in electrical systems? Battery Stored as chemical energy then transformed to electrical energy on usage Water behind a dam Water
More informationApprentice Telecommunications Technician Test (CTT) Study Guide
Apprentice Telecommunications Technician Test (CTT) Study Guide 1 05/2014 Study Guide for Pacific Gas & Electric Company Apprentice Telecommunications Technician Qualifying Test (CTT) About the Test The
More informationMeasuring Impedance and Frequency Response of Guitar Pickups
Measuring Impedance and Frequency Response of Guitar Pickups Peter D. Hiscocks Syscomp Electronic Design Limited phiscock@ee.ryerson.ca www.syscompdesign.com April 30, 2011 Introduction The CircuitGear
More informationEquipment: Power Supply, DAI, Transformer (8341), Variable resistance (8311), Variable inductance (8321), Variable capacitance (8331)
Lab 5: Singlephase transformer operations. Objective: to examine the design of singlephase transformers; to study the voltage and current ratios of transformers; to study the voltage regulation of the
More informationLesson 3 DIRECT AND ALTERNATING CURRENTS. Task. The skills and knowledge taught in this lesson are common to all missile repairer tasks.
Lesson 3 DIRECT AND ALTERNATING CURRENTS Task. The skills and knowledge taught in this lesson are common to all missile repairer tasks. Objectives. When you have completed this lesson, you should be able
More informationHowever, industrial applications may utilize a relay, which shortcircuits the ICL path after the inrush sequence.
Application note for Inrush Current Limiters (ICL) Turning on electrical devices generally cause high inrush currents which can damage electronic components and cause interruption of the line voltage if
More informationCHAPTER 30: Inductance, Electromagnetic Oscillations, and AC Circuits
HAPTE 3: Inductance, Electromagnetic Oscillations, and A ircuits esponses to Questions. (a) For the maximum value of the mutual inductance, place the coils close together, face to face, on the same axis.
More informationCurrent and Temperature Ratings
Document 3611 Current and Temperature Ratings Introduction This application note describes: How to interpret Coilcraft inductor current and temperature ratings Our current ratings measurement method and
More informationLet s examine the response of the circuit shown on Figure 1. The form of the source voltage Vs is shown on Figure 2. R. Figure 1.
Examples of Transient and RL Circuits. The Series RLC Circuit Impulse response of Circuit. Let s examine the response of the circuit shown on Figure 1. The form of the source voltage Vs is shown on Figure.
More informationPhasors. Phasors. by Prof. Dr. Osman SEVAİOĞLU Electrical and Electronics Engineering Department. ^ V cos (wt + θ) ^ V sin (wt + θ)
V cos (wt θ) V sin (wt θ) by Prof. Dr. Osman SEVAİOĞLU Electrical and Electronics Engineering Department EE 209 Fundamentals of Electrical and Electronics Engineering, Prof. Dr. O. SEVAİOĞLU, Page 1 Vector
More informationDIODE CIRCUITS LABORATORY. Fig. 8.1a Fig 8.1b
DIODE CIRCUITS LABORATORY A solid state diode consists of a junction of either dissimilar semiconductors (pn junction diode) or a metal and a semiconductor (Schottky barrier diode). Regardless of the type,
More informationChapter 30 Inductance
Chapter 30 Inductance  Mutual Inductance  SelfInductance and Inductors  MagneticField Energy  The R Circuit  The C Circuit  The RC Series Circuit . Mutual Inductance  A changing current in
More informationHow To Understand And Understand The Theory Of Electricity
DIRECT CURRENT AND ALTERNATING CURRENT SYSTEMS N. Rajkumar, Research Fellow, Energy Systems Group, City University Northampton Square, London EC1V 0HB, UK Keywords: Electrical energy, direct current, alternating
More informationDiode Applications. by Kenneth A. Kuhn Sept. 1, 2008. This note illustrates some common applications of diodes.
by Kenneth A. Kuhn Sept. 1, 2008 This note illustrates some common applications of diodes. Power supply applications A common application for diodes is converting AC to DC. Although halfwave rectification
More informationBSNL TTA Question PaperInstruments and Measurement Specialization 2007
BSNL TTA Question PaperInstruments and Measurement Specialization 2007 (1) Instrument is a device for determining (a) the magnitude of a quantity (b) the physics of a variable (c) either of the above
More informationMeasurement of Inductor Q with the MSA Sam Wetterlin 3/31/11. Equation 1 Determining Resonant Q from Inductor Q and Capacitor Q
Measurement of Inductor with the MSA Sam Wetterlin 3/31/11 The of an inductor, which is its reactance divided by its internal series resistance, is used as an indication of how well it will perform at
More informationChapter 10. RC Circuits ISU EE. C.Y. Lee
Chapter 10 RC Circuits Objectives Describe the relationship between current and voltage in an RC circuit Determine impedance and phase angle in a series RC circuit Analyze a series RC circuit Determine
More informationRectifier circuits & DC power supplies
Rectifier circuits & DC power supplies Goal: Generate the DC voltages needed for most electronics starting with the AC power that comes through the power line? 120 V RMS f = 60 Hz T = 1667 ms) = )sin How
More informationSParameters and Related Quantities Sam Wetterlin 10/20/09
SParameters and Related Quantities Sam Wetterlin 10/20/09 Basic Concept of SParameters SParameters are a type of network parameter, based on the concept of scattering. The more familiar network parameters
More informationEE 221 Circuits II. Chapter 13 Magnetically Coupled Circuits
EE Circuits II Chapter 3 Magnetically Coupled Circuits Magnetically Coupled Circuits 3. What is a transformer? 3. Mutual Inductance 3.3 Energy in a Coupled Circuit 3.4 inear Transformers 3.5 Ideal Transformers
More informationNetwork Theory Question Bank
Network Theory Question Bank UnitI JNTU SYLLABUS: Three Phase Circuits Three phase circuits: Phase sequence Star and delta connection Relation between line and phase voltages and currents in balanced
More informationCoupled Inductors. Introducing Coupled Inductors
Coupled Inductors From power distribution across large distances to radio transmissions, coupled inductors are used extensively in electrical applications. Their properties allow for increasing or decreasing
More informationSemiconductor Diode. It has already been discussed in the previous chapter that a pn junction conducts current easily. Principles of Electronics
76 6 Principles of Electronics Semiconductor Diode 6.1 Semiconductor Diode 6.3 Resistance of Crystal Diode 6.5 Crystal Diode Equivalent Circuits 6.7 Crystal Diode Rectifiers 6.9 Output Frequency of HalfWave
More informationUnderstanding Power Impedance Supply for Optimum Decoupling
Introduction Noise in power supplies is not only caused by the power supply itself, but also the load s interaction with the power supply (i.e. dynamic loads, switching, etc.). To lower load induced noise,
More informationCritical thinfilm processes such as deposition and etching take place in a vacuum
WHITEPAPER INTRODUCING POWER SUPPLIES AND PLASMA Critical thinfilm processes such as deposition and etching take place in a vacuum SYSTEMS chamber in the presence of a plasma. A plasma is an electrically
More informationANADOLU UNIVERSITY DEPARTMENT OF ELECTRICAL AND ELECTRONICS ENGINEERING
ANADOLU UNIVERSITY DEPARTMENT OF ELECTRICAL AND ELECTRONICS ENGINEERING EEM 102 INTRODUCTION TO ELECTRICAL ENGINEERING EXPERIMENT 9: DIODES AND DC POWER SUPPLY OBJECTIVE: To observe how a diode functions
More informationCURRENT ELECTRICITY INTRODUCTION TO RESISTANCE, CAPACITANCE AND INDUCTANCE
CURRENT ELECTRICITY INTRODUCTION TO RESI STANCE, CAPACITANCE AND INDUCTANCE P R E A M B L E This problem is adapted from an online knowledge enhancement module for a PGCE programme. It is used to cover
More informationPower Supplies. 1.0 Power Supply Basics. www.learnaboutelectronics.org. Module
Module 1 www.learnaboutelectronics.org Power Supplies 1.0 Power Supply Basics What you ll learn in Module 1 Section 1.0 Power Supply Basics. Basic functions of a power supply. Safety aspects of working
More informationApril 1. Physics 272. Spring 2014 http://www.phys.hawaii.edu/~philipvd/pvd_14_spring_272_uhm.html. Prof. Philip von Doetinchem philipvd@hawaii.
Physics 272 April 1 Spring 2014 http://www.phys.hawaii.edu/~philipvd/pvd_14_spring_272_uhm.html Prof. Philip von Doetinchem philipvd@hawaii.edu Phys272  Spring 14  von Doetinchem  164 Summary Gauss's
More informationTransformer circuit calculations
Transformer circuit calculations This worksheet and all related files are licensed under the Creative Commons Attribution License, version 1.0. To view a copy of this license, visit http://creativecommons.org/licenses/by/1.0/,
More informationEffect of Frequency on Inductive Reactance
TUNED CIRCUITS Effect of Frequency on Inductive Reactance Resonance The ideal seriesresonant circuit How the ParallelLC Circuit Stores Energy Parallel resonance Resonant circuits as filter circuits Pulsed
More informationExperiment 8: Undriven & Driven RLC Circuits
Experiment 8: Undriven & Driven RLC Circuits Answer these questions on a separate sheet of paper and turn them in before the lab 1. RLC Circuits Consider the circuit at left, consisting of an AC function
More informationApplication Guide. Power Factor Correction (PFC) Basics
Power Factor Correction (PFC) Basics Introduction Power Factor, in simple terms, is a number between zero and one that represents the ratio of the real power to apparent power. Real power (P), measured
More informationScience and Reactor Fundamentals Electrical CNSC Technical Training Group. Table of Contents
Electrical Science and Reactor Fundamentals Electrical i Table of Contents 1 Objectives... 1 1.1 BASIC ELECTRICAL THEORY... 1 1.2 TRANSFORMERS... 1 1.3 GENERATORS... 2 1.4 PROTECTION... 3 2 BASIC ELECTRICAL
More informationIntroduction to the Smith Chart for the MSA Sam Wetterlin 10/12/09 Z +
Introduction to the Smith Chart for the MSA Sam Wetterlin 10/12/09 Quick Review of Reflection Coefficient The Smith chart is a method of graphing reflection coefficients and impedance, and is often useful
More informationSIMULATIONS OF PARALLEL RESONANT CIRCUIT POWER ELECTRONICS COLORADO STATE UNIVERSITY
SIMULATIONS OF PARALLEL RESONANT CIRCUIT POWER ELECTRONICS COLORADO STATE UNIVERSITY Page 1 of 25 PURPOSE: The purpose of this lab is to simulate the LCC circuit using MATLAB and ORCAD Capture CIS to better
More informationApplication Note AN 1095
Application Note AN 1095 Design of the Inverter Output Filter for Motor Drives with IRAMS Power Modules Cesare Bocchiola Table of Contents Page Section 1: Introduction...2 Section 2 : Output Filter Design
More informationElectronics. Basic Concepts. Yrd. Doç. Dr. Aytaç GÖREN Yrd. Doç. Dr. Levent ÇETİN
Electronics Basic Concepts Electric charge Ordinary matter is made up of atoms which have positively charged nuclei and negatively charged electrons surrounding them. Charge is quantized as the subtraction
More informationModule Title: Electrotechnology for Mech L7
CORK INSTITUTE OF TECHNOLOGY INSTITIÚID TEICNEOLAÍOCHTA CHORCAÍ Autumn Examinations 2012 Module Title: Electrotechnology for Mech L7 Module Code: ELEC7007 School: School of Mechanical, Electrical and Process
More informationInductors. AC Theory. Module 3
Module 3 AC Theory What you ll learn in Module 3. Section 3.1 Electromagnetic Induction. Magnetic Fields around Conductors. The Solenoid. Section 3.2 Inductance & Back e.m.f. The Unit of Inductance. Factors
More informationElectricity & Electronics 5: Alternating Current and Voltage
Electricity & Electronics 5: lternating Current and Voltage lternating Current and Voltage IM This unit looks at several aspects of alternating current and voltage including measurement of frequency and
More informationBuilding the HVPS High Voltage Power Supply
Introduction Building the HVPS High Voltage Power Supply Voltages higher than the LVPS provides kilovolts are needed in later experiments to get strong electric fields and to generate microwaves. The highvoltage
More informationFrequency response: Resonance, Bandwidth, Q factor
Frequency response: esonance, Bandwidth, Q factor esonance. Let s continue the exploration of the frequency response of circuits by investigating the series circuit shown on Figure. C + V  Figure The
More information