O'Reilly logo

Switching Power Supplies A - Z, 2nd Edition by Sanjaya Maniktala

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Chapter 3

Off-Line Converter Design and Magnetics

First, the transformer-based flyback topology is introduced and it is shown how it can be mapped into equivalent inductor-based Buck-Boost models for easy analysis and design. Flyback zener clamp design is discussed here, and the importance of reducing both Primary-side and secondary-side leakage inductances is highlighted. Concepts like skin depth are introduced, and a quick-lookup chart is provided for designing the flyback transformer’s windings, keeping in mind the target current density (in cmil/A or A/m2). Temperature rise of commonly used cores is also discussed. Next, the Forward converter is introduced and the designs of both its output choke and transformer are discussed in detail. This ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required