/’ * DESIGNING MAGNETIC COMPONENTS FOR HIGH FREQUENCY DC-DC CONVERTERS Colonel Wm. T. ppsx

/’ * DESIGNING MAGNETIC COMPONENTS FOR HIGH FREQUENCY DC-DC CONVERTERS Colonel Wm T McLyman DESIGNING MAGNETIC COMPONENTS FOR HIGH FREQUENCY DC-DC CONVERTERS a @ ii Other Books and Software by the Author BQQks Mo~netic Core Selection for Trnnsfortners mui lnchctors Marcel Dekker, 270 Madison Ave., New York, NY 10016 Transformer and huluctor Design Hflndbook (second edition) Marcel Dekker, 270 Madison Ave., New York, NY 10016 S dmme Computer Aided Design for inductors nnd Trmsfornws Kg Magnetics Inc 2135 Huntington Drive Suite 201D, San Marirm, Ca 91108 Flybmk Converter Magnetics Design Kg Magnetics Inc 2135 Huntington Drive Suite 201 D, San Marine,Ca.91108 MnSnr’tic Core Conversion Kg Magnetics Inc 2135 Huntington Drive Suite 201D, San Marirm,Ca.91108 Specialty Design Mognetics Kg Magnetics inc 2135 Huntington Drive Suite 2011J, San Marine,Ca.91108 Spccinlty 11 Design Mr?gtwtics Kg Magnetics Inc 2135 Huntington Drive Suite 201 D, San Marine,Ca.91108 Cowpufer Aided ?W@ormer and lwfuctor Analysis Kg Magnetics Inc 2135 Huntington Drive Suite 2011>, San Marine,Ca.91108 I’here are also 17 leading manufacturers core data disks available When you buy the above software it will never becomes obsolete The software is updated at least once a year The only Charge is for postage and handling Kg Magnetics Inc 2135 Huntington Drive Suite 201D, San Marine, Ca 91108 Phone (818) 568-8443 FAX (818) 568-8534 Metglas~M is a registered trademark of Allied-Signal, Inc Kool Mpl M is a registered trademark of Magnetics, L>ivisicm of Spang & Co 111 Library of Congress Cataloging in Publication Data Mcl ,yman Colonel William T Designing Magnetic Components for High Frequency DC-DC Converters Bibliography : p lr-wludes index Electronic transformers Copyright @ 1993 by Kg Magnetics, Inc All Rights Reserved The design equations and format used in the examples presented in this book were taken from the author’s design software programs The titles of the software prograrm are mentioned earlier in this book, The design equations and design procedures are to be used by the individual engineer for design and evaluation of magnetic components The design equations and/or design procedures illustrated in this book cannot be developed into software that can be disseminated in any form that would be in direct or indirect competition with the author’s software Neither this book nor any part may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, microfilming, and recording, or by any information storage and retrieval system, without permission in writing from the publisher Kg Magnetics, Inc 2135 Huntington Drive Suite 201D San Marine, Ca 91108 Phone (818) 568-8443 FAX (818) 568-8534 Current printing (last digit) 10987654321 I’RINTED IN THE UNITED STATES (’)F AMERICA iv Disclaimer All statements, information, and data given herein are believed to be accurate and reliable, but are presented without guarantee, warranty, or responsibility of any kind, expressed or implied Statements or suggestions concerning possible use of this book, including but not limited to the design of magnetic components, are made without representation or warranty that any such use is free of patent infringement, and are not recommendations to infringe any patents The user should not assume that all safety measures are indicated, or that other measures may not be required lf a “history of the evolution of United States education in the fields of power electronics is written at some point in time in the future, it will most certainly discuss the lack of educational courses in practical magnetics design that has continued since the end of World War 11 Even today, where magnetics design is often considered by many institutions of higher learning as an “outdated and outmoded” subject, this educational problem continues to flourish Yet, every modern electronic product today requires some form of power-processing or powerconditioning circuit for proper operation, and those circuits enviably contain magnetic components Over the past fourteen years, Colonel McLyman’s best-selling two books on magnetic design principles have provided working engineers with easy-to-use analytical tools to develop practical and reliable magnetic components of all varieties These books have, for many of us, filled the educational void that our college engineering experiences left unfilled, and are now m considered essential reading for new engineers entering the fields of power electronics design, [&fA t+~ ~