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Demystifying Switching Power Supplies - 1st Edition - ISBN: 9780750674454, 9780080477107

Demystifying Switching Power Supplies

1st Edition

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Author: Raymond Mack
Paperback ISBN: 9780750674454
eBook ISBN: 9780080477107
Imprint: Newnes
Published Date: 5th April 2005
Page Count: 344
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This book is a crash course in the fundamental theory, concepts, and terminology of switching power supplies. It is designed to quickly prepare engineers to make key decisions about power supplies for their projects.

Intended for readers who need to quickly understand the key points of switching power supplies, this book covers the 20% of the topic that engineers use, 80% of the time.

Unlike existing switching power supply books that deal strictly with design issues, this book also recognizes the growing importance of "off-the-shelf" commercial switching power supplies, giving readers the background necessary to select the right commercial supply.

This book covers the core essentials of power supply theory and design while keeping mathematics to the absolute minimum necessary. Special attention is given to the selection of appropriate components, such as inductors and transformers, to ensure safe and reliable operation. Engineers, whose main design responsibilities are in other areas, will better understand the strengths and weaknesses of switching power supplies and whether such supplies are appropriate for their projects. They will be able to give more meaningful design requirements and specifications to those who design switching power supplies.

Key Features

  • Discusses both AC line supplies and DC-DC inverters.

  • Covers the main switching power supply designs, including flyback, forward conversion, bridge, buch, boost, and boost/buck topologies.

  • Design examples include a 220 volt offline switching power supply and a 110 volt uninterruptible supply.


Engineers, design engineers, engineering managers in any industry that incorporates supplies, including automotive, computer systems, avionics, industrial, etc.; Engineering technicians and students

Table of Contents

Preface Introduction

  1. Basic Switching Circuits
  2. Control Circuits
  3. The Input Power Supply
  4. Non-Isolated Circuits
  5. Transformer-Isolated Circuits
  6. Passive Component Selection
  7. Semiconductor Selection
  8. Inductor Selection
  9. Transformer Selection
  10. A “True Sine Wave” Inverter Design Example
  11. A PC Off-Line Supply Index


No. of pages:
© Newnes 2005
5th April 2005
Paperback ISBN:
eBook ISBN:

About the Author

Raymond Mack

Affiliations and Expertise

Conexant Systems, Austin, TX, USA


“Mack takes you from the basics (v=Ldi/dt, plus buck, boost, inverting boost, buck-boost, and other supply circuit topologies) on through the details of passive component selection and semiconductor selection. Of particular note are his treatment of control circuits and their effect on ripple levels and electromagnetic compatibility. He provides a step-by-step test sequence for evaluating power-supply response using a variable load, an oscilloscope, and function generator. Mack concludes with two solid examples: a true sine-wave inverter uninterruptible power supply and a personal-computer power supply.” — Rick Nelson, Chief Editor, Test & Measurement World, August 2006

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