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   Inductors, Power

An inductor is a passive electrical device employed in electrical circuits for its property of inductance. An inductor can take many forms.

Inductance (measured in henries) is an effect which results from the magnetic field that forms around a current carrying conductor. Electrical current through the conductor creates a magnetic flux proportional to the current. A change in this current creates a change in magnetic flux that, in turn, generates an electromotive force (emf) that acts to oppose this change in current. Inductance is a measure of the generated emf for a unit change in current. For example, an inductor with an inductance of 1 henry produces an emf of 1 V when the current through the inductor changes at the rate of 1 ampere per second. The inductance of a conductor is increased by coiling the conductor such that the magnetic flux encloses (links) all of the coils (turns). Additionally, the magnetic flux linking these turns can be increased by coiling the conductor around a material with a high permeability.



Bronze Partners
3L Global Electronics
Abbott Technologies, Inc.
ABC Taiwan Electronics Corp.
Abracon Corporation
Advanced Magnetic Components
AlfaMag Electronics LLC
Allied Components International
Alpha-Core, Inc.
Amecon, Inc.
American Magnetics
American Technical Ceramics Corp.
Amidon Inductive Components
Amveco Magnetics Inc
Anodyne Components, Inc.
API Delevan Inc.
Armbar Industries, Inc.
Associated Components Tech. Inc.(ACT)
ATC-Frost Magnetics / Standex Electronics
B & L Industries, Inc.
Badger Transformer Comp. Inc.
Bel Fuse Inc.
Bey Electronics Corp.
BH Electronics, Inc.
Bicron Electronics
Bomag USA, LLC
Bourns, Inc.
Bridgeport Magnetics/Tortran Inc.
Caddell-Burns Manufacturing Co., Inc.
Cambion
Central Technologies
CET Technology
CoEv, Inc.
Coil Specialty Company
Coilcraft
Coiltech Inc.
Coin Electronics.Co.,Ltd
Communication Coil Inc.
Compostar Inc.
Cooper Electronic Technologies/Cooper Bussmann
CTM Magnetics
Custom Coils Inc.
Custom Magnetics Inc.
Datatronic Distribution, Inc.
DCA, Inc.
DeYoung Mfg., Inc.
DT Magnetics
EAG Electronics
ECI/Electronic Coils
EK Magnetics
Electro Assemblies Corp.
Electro Technik Industries
Electromech, Inc.
Elytone Electronics Co., Ltd.
Engineered Components Company
Excel Electric Corporation
Falco Sales
Fastron Electronics
Flux A/S
Forest Electric Company
Foster Transformer Company
Frequency Management
Frontier Electronics
Gavagan Electronics
GCi Technologies
General Linear Systems, Inc.
Glen Magnetics Inc.
Gowanda Electronics Corp.
Grand Transformer, Inc.
Hurricane Electronics Lab., Inc.
Hytronics Corp.
I-TECH CORP.
Inductive Technologies
Inductor Supply Inc
J.W. Miller Magnetics
Jantek Electronics Co., Ltd
Jaro Components, Inc.
Kemet Electronics Corp.
Keytronics, Inc.
Knight Electronics
KOA Speer Electronics, Inc.
LCR Electronics, Inc.
Lenco Electronics, Inc.
MAG Layers USA, Inc.
Mag-Con Engineering, Inc.
Magnelab
Magnet Schultz Of America
Magnetic Circuit Elements
Magnetic Component Engineering, Inc.
Magnetic Design Labs
Magnetic Windings Co., Inc.
Magnetico, Inc.
Magnetika, Inc
Mainstar Industries Limited
Mech-Tronics
Metuchen Capacitors, Inc.
Microtran Manufacturing Division
Midcom, Inc.
Mingstar Electronic Corp.
Minntronix, Inc
Multicomp/ZMAN Magnetics
NIC Components Corp.
Pacific Transformer Corp
Payton America
Peter Parts Electronics
Peter W Dahl Co Inc
Pico Electronics, Inc.
PLITRON Manufacturing, Inc.
Polara Engineering Inc.
Powertronix Corp.
Precision Electronics
Precision Inc
Prem Magnetics, Inc.
Pulse, A Technitrol Company
Raycom Electronics, Inc.
RCD Components, Inc.
Renco Electronics, Inc.
RFE International, Inc.
Rhombus Industries
Samwha USA, Inc.
Schott Magnetics
Scientific Conversion, Inc.
Segue Electronics, Inc
Sigma Electronics Inc
Signal Transformer
SMEC, Inc.
Spectrum Control, Inc.
Sprague-Goodman Electronics, Inc.
Standex Electronics Inc.
Steward
STK International
Sumida America
Tabtronics Incorporated
Tamura Corp. of America
TDK Corporation of America
The Inter-Technical Group, Inc.
Thomas Magnetix
Thordarson Inc.
Thordarson Meissner Incorporated
Toko America, Inc.
Toroid Corporation of Maryland
Torotel Products Inc.
Tranex Inc
Trans-Coil, Inc
Transformer Engineering Corp.
Transtek Magnetics
Triad Magnetics (formerly Magnetek)
TT electronics BI Technologies
Tyco Electronics Corp.
V & F Transformer Corp.
Ventronics, Inc.
Victoria Magnetics
Vishay Intertechnology
Vitec Electronics Corp.
VOGT Electronic of NA, Inc.
West Coast Magnetics
Wilco Corporation
Wirebenders, Inc.
World Power Components
World Products Inc.
Wurth Electronics Inc.
Xepex International
Yageo America Corporation
Zixel, Ltd.
ZMAN Magnetics
Fix & Prog. Sinewave Oscillators - Frequency Devices

 

Books
Inductors and Transformers For Power Electronics
Alex Van den Bossche and Vencislav Cekov Valchev

Excerpt - page 2: "... Inductors and Transformers for Power Electronics Total current i Total density J A it '2 ..."
See more references to Inductors, Power in this book.
Demystifying Switching Power Supplies (Demystifying Technology)
Raymond A. Mack

Excerpt - page 78: "... converter. The output current will be limited to the peak inductor current. For PWM ICs that have a shutdown pin, you can use external circuitry to detect a fault and shut down the power supply. The size of the inductor determines the amount of ..."
See more references to Inductors, Power in this book.
Switching Power Supply Design
Abraham I. Pressman

Excerpt - page 68: "... secondaries to the LC filters and the loads. Note that power flows to the loads when ... chapter) store energy in an inductor or transformer primary when the power transistor is on and ..."
See more references to Inductors, Power in this book.
Simplified Design of Switching Power Supplies (EDN Series for Design Engineers)
John Lenk

Excerpt - page 21: "... the transformer, two more diodes, and an additional output filter inductor. Power is transferred from input to load through Dl during the ..."
See more references to Inductors, Power in this book.
Fundamentals of Power Electronics (Second Edition)
Robert W. Erickson and Dragan Maksimovic

Excerpt - page 42: "... that converter dynamics can be modeled as well, by adding inductors and capacitors to the equivalent circuit. Let us consider the inductor copper loss in a boost converter. Practical inductors exhibit power loss of two types: (I) copper loss, origi- L RL ..."
See more references to Inductors, Power in this book.
Sizing a power inductor: an aid to employment of switch mode power supplies.: An article from: Designfax
Douglas R. Kokesh

Power Supply Cookbook (EDN Series for Design Engineers) (EDN Series for Design Engineers)
Marty Brown

Excerpt - page 24: "... different fashion than the forward-mode converter. This time, when the power switch is turned on, a current loop is created that only includes the inductor, the power switch, and the input voltage source. The diode ..."
See more references to Inductors, Power in this book.
Power Electronics: Converters, Applications, and Design
Ned Mohan, Tore M. Undeland, and William P. Robbins

Excerpt - page 9: "... each other, may be single phase or three phase. The power flow is generally from the ... elements such as capacitors and inductors. Therefore, the instantaneous power input does not have to equal ..."
See more references to Inductors, Power in this book.
Practical Switching Power Supply Design (Academic Press Professional and Technical Series)
Martin C. Brown

Excerpt - page 21: "... equals the output load current is always flowing through the inductor. The power switch, a power MOSFET in this case, acts only to ..."
See more references to Inductors, Power in this book.
Switchmode Power Supply Handbook (McGraw-Hill Handbooks)
Keith Billings

Excerpt - page 41: "... Part 3, Chap. 1). 3.11 DESIGN EXAMPLE, COMMON-MODE LINE FILTER INDUCTORS Assume it has been established by calculation or measurement (Sec. 3.10) that a 100-W power supply operating from a 110-V ac supply requires a common-mode ..."
See more references to Inductors, Power in this book.
Renewable and Efficient Electric Power Systems
Gilbert M. Masters

Excerpt - page 34: "... leads to the following equation for energy stored in an inductor's mag- netic field: WL = 2L i2 (1.47) If we use (1.47) to learn something about the power dissipated in an inductor, we get P = dW = ..."
See more references to Inductors, Power in this book.
Design Shortcuts and Procedures for Electronics Power Transformers and Inductors
Kiltie Ordean

IEEE Standard for Transformers and Inductors in Electronic Power Conversion Equipment/Sh15206
IEEE

Design shortcuts & procedures for electronics power transformers & inductors
Ordean Kiltie

Elements of Power Electronics (Oxford Series in Electrical and Computer Engineering)
Philip T. Krein

Excerpt - page 30: "... circuit do if each switch operates half the time? The inductor and capacitor have large values. ... should flow through, instead). The power into the inductor therefore must equal the power out, at ..."
See more references to Inductors, Power in this book.
Introduction to High Power Pulse Technology (Advanced Series in Electrical and Computer Engineering)
S. T. Pai and Qi Zhang

Excerpt - page 75: "... insulator Fig.3-27 In a typical application of short pulse, pulsed power, the generator produces a dI/dl in the vacuum inductor. The power flows through the vacuum insulator and the magnetically ..."
See more references to Inductors, Power in this book.
Practical Design Power Supplies
Ron Lenk

Excerpt - page 7: "... to ground for some duty cycle and then released to power an inductor during the remainder of the period. This brings in another ..."
See more references to Inductors, Power in this book.
Transformer and Inductor Design Handbook, Third Edition (Electrical and Computer Engineering)
Colonel Wm. T. McLyman

Excerpt - page 48: "... at very high frequency. Iron powder is not recommended for inductors with discontinuous current or transformers ... today's, low and high frequency power switching conversion applications, for differential-mode, input and output power inductors. ..."
See more references to Inductors, Power in this book.
Power Electronics Converter Harmonics: Multipulse Methods for Clean Power
Derek A. Paice

Excerpt - page 102: "... 7-5 Harmonic currents of three-phase rectifier bridge with do filter inductor (power type SP2). 7.3 CURRENT HARMONICS IN CONVERTERS WITH AN INDUCTOR-INPUT ..."
See more references to Inductors, Power in this book.
Power-switching Converters (Electrical and Computer Engineering)
Simon S. Ang

Excerpt - page 33: "... inductance, Lc, can be derived by assuming that the input power of the boost converter is equal to the output power: VS IS = R (2.54) The average inductor current, IL, is IL d I VD (2.55) 2 = ..."
See more references to Inductors, Power in this book.
Switch-Mode Power Supply SPICE Cookbook
Christophe P. Basso and Christopher Basso

Excerpt - page 23: "... Overview Figure 1-7a The power switch routes the inductor current to terminals b and c, depending on the interval. ..."
See more references to Inductors, Power in this book.
IEEE Recommended Practice for Testing Electronic Transformers and Inductors (Ieee Std 389-1990)
Power Electronics Society

Understanding Electric Power Systems: An Overview of the Technology and the Marketplace (IEEE Press Understanding Science & Technology Series)
Jack Casazza and Frank Delea

Excerpt - page 35: "... lines due to the capacitive charging effect. Sinks of reactive power which lower voltage: >Inductors; ansformers; st heavily loaded transmission lines due to ..."
See more references to Inductors, Power in this book.
Dynamics and Control of Large Electric Power Systems
Marija Ilić and John Zaborszky

Excerpt - page 13: "... TIME-DOMAIN REPRESENTATION FOR AC VOLTAGE, CURRENT, POWER 13 and into the inductor is ~, (t) = eL (t)iL (t) = L i ..."
See more references to Inductors, Power in this book.
Power Distribution Engineering (Electrical and Computer Engineering)
James J. Burke

Excerpt - page 66: "... and then negative for half a cycle. This means that power is oscillating back and forth between the generator (or capacitor) and the inductor and that average real power is zero. This type of ..."
See more references to Inductors, Power in this book.
Digital Power Electronics and Applications
Fang Lin Luo, Hong Ye, and Muhammad H. Rashid

Low-Voltage/Low-Power Integrated Circuits and Systems: Low-Voltage Mixed-Signal Circuits (IEEE Press Series on Microelectronic Systems)
Edgar Sánchez-Sinencio and Andreas G. Andreou

Excerpt - page 79: "... there is currently no direct way of fabricating a useful inductor on a low- power IC. 3.6. BANDWIDTH AND NOISE CONSIDERATIONS Perhaps the most easily ..."
See more references to Inductors, Power in this book.
Magnetic Components for Power Electronics
Alex Goldman

Excerpt - page 41: "... CONSIDERATIONS IN MAGNETIC COMPONENT CHOICE 41 2.12-OUTPUT POWER INDUCTORS Power Inductors differ from the low-level inductors that we have ..."
See more references to Inductors, Power in this book.
Pulse Width Modulated (PWM) Power Supplies (Studies in Electrical and Electronic Engineering)
V. Quercioli

Excerpt - page 128: "... 128 PWM power supplies filter inductor has a peak-to-peak value Al, and the ramp's average value ..."
See more references to Inductors, Power in this book.
Electric Power Engineering - Second Edition
Olle Elgerd and Patrick van der Puije

Excerpt - page 131: "... a compact review. Table 4.1 summarizes the real and reactive power for the most common types of load. Note, in particular, that an inductive load draws reactive power from the source. In power lingo, an inductor is said to "consume" reactive power. A capac- itive load, ..."
See more references to Inductors, Power in this book.
Switched-Mode Power Supplies in Practice
Otmar Kilgenstein

Excerpt - page 75: "... 103s-' PTre - - =1.2W PT, =3.42W+ 1.2W =4.65W The power loss in the inductor is somewhat reduced by the lower inductor resistance. The loss ..."
See more references to Inductors, Power in this book.
Power Converter Circuits (Electrical and Computer Engineering)
William Shepherd and Li Zhang

Excerpt - page 77: "... dissipated in resistor R. With ideal switches and a lossless inductor L the output power also equals the input power Po,,,=P;,,=~R (3.62) The input current ..."
See more references to Inductors, Power in this book.
Transistor Circuits for Spacecraft Power System
Keng C. Wu

Excerpt - page 141: "... treatment of section 6.2, the ideal case was presented. The power inductor and the main switch as non-ideal physical devices contain resistance, ..."
See more references to Inductors, Power in this book.
Switch-Mode Power Supply Simulation: Designing with SPICE 3 (McGraw-Hill Electronic Engineering)
Steven M. Sandler

Excerpt - page 115: "... function. In the flyback topology, energy is stored in a power inductor (which often has multiple windings, as in a transformer) during ..."
See more references to Inductors, Power in this book.
Solid-State Power Conversion Handbook
Ralph E. Tarter

Excerpt - page 99: "... low enough to allow high current levels without instantanous excessive power dissipation. The inductor may be reset by an auxiliary source connected to a ..."
See more references to Inductors, Power in this book.
Electric Power Systems: A Conceptual Introduction (Wiley Survival Guides in Engineering and Science)
Alexandra von Meier

Excerpt - page 31: "... most basic circuit elements, and those mainly of interest in power systems, include resistors, capacitors, and inductors. These are also called linear circuit elements because they exhibit ..."
See more references to Inductors, Power in this book.
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Electronics News, Product Guide, Forum and Community
Electronic Filters, Amplifiers & Oscillators - Frequency Devices
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