Flyback Transformer Design Example英文电子书.pdf

Application Note AN-1024 Flyback Transformer Design for the IRIS40xx Series Table of Contents Page 1. Introduction to Flyback Transformer Design 1 2. Power Supply Design Criteria Required 2 3. Transformer Design Process2 4) Transformer Construction 9 4.1) Transformer Materials10 4.2) Winding Styles 12 4.3) Winding Order12 4.4) Multiple Outputs12 4.5) Leakage Inductance 13 5) Transformer Core Types 14 6) Wire Table 16 7) References 17 8) Transformer Component Sources17 One of the most important factors in the design of a flyback converter power supply is the design of the transformer. The main advantages of the flyback circuit are cost, simplicity and the ease of adding multiple outputs. Flyback topologies are practical and lowest cost for systems up to 100W. Flyback transformer design is a somewhat iterative process, due to the number of variables involved, but it is not difficult, and with a little experience can become a quick and simple process. APPLICATION NOTE AN-1024a International Rectifier • 233 Kansas Street El Segundo CA 90245 USA Flyback Transformer Design For The IRIS40xx Series By Jonathan Adams TOPICS COVERED Introduction To Flyback Transformer Design Wire Table Power Supply Design Criteria Required References Transformer Design Process Transformer Component Sources Transformer Construction Core Types 1) INTRODUCTION TO FLYBACK TRANSFORMER DESIGN One of the most important factors in the design of a flyback converter power supply is the design of the transformer. Although we call it a transformer it is not