Switching Power Supply Design

A practical guide to state-of-the-art power supply design. Covering every aspect of this new technology, this complete manual on designing modern power supplies is distinguished by three features: emphasis is placed not only on circuit design but also on transformer design; numerous photographs of actual oscilloscope traces show waveforms at critical points in most of the commonly used topologies at various frequencies; and a tutorial approach is taken throughout the book, encouraging readers to participate in the derivation of all important principles and equations imparts a profound and lasting understanding. Highlighting all important and practical aspects of modern switching power supply technology, this book should be invaluable to design engineers as well as to all those involved in power supply design analysis, testing and debugging.

A practical guide to state-of-the-art power supply design

Nowhere else can you find, in one book, all the information you need to design a switching power supply. And no other book on the subject is as practical, yet mathematically sufficient, without being unnecessarily academic. Using a tutorial, how-to-do-it approach, Pressman first explains basic principles and why thigs are done as they are. With a knowledge of basic principles, the engineer can easily cope with new design requirements and evaluate alternative design decisions. The topics covered represent all those areas where a design decision has to be made in commencing a new design. These include: Topology Descriptions -- A quantitative description of the roughly 15 commonly used topologies. Maximum current and voltage stress on power transistors for specified input voltage-output powers are described. The discussion permits selection of an optimum topology for the specified input-output voltages, output powers, and the selection of the power transistors; High-Frequency Magnetics Fundamentals--Ferrite core hysteresis, coil skin effect, and proximity effect losses; Transformer Design--Derivation of equation for transformer core selection for available output power as a function of frequency, flux density, iron and bobbin area, and topology; novel charts derived from the equations, permitting core selection at a glance; core, coil, total transformer loss, and temperature rise calculations; transformer design examples in major topologies; DC Current Biased Inductor Design -- Design of inductors carrying DC bias currents using ferrite, MPP, Koolmu, and powered iron cores; Magnetic Amplifier, Snubber Designs, and Resonant Converters; Feedbak Look Stabilization; Critical Polaroid Waveforms in Major Topologies.

This second edition adds chapters on the current hottest topics in the field; power factor corrections, high-frequency ballsts for flourescent lamps, and low-input voltage power supplies for laptop computers.