19

High-Frequency Transformer Materials

Ralph Lucke

CONTENTS

19.1  Introduction

19.2  Application-Related Basics

19.3  Material-Related Demands on Power Transformer Ferrites

19.4  Core-Shape-Related Peculiarities

19.5  Newest Results of Ferrite Material Development

19.6  Potentials and Limits of Conventional Ferrite Materials

19.7  Comparison of Ferrites with Other Soft Magnetic Materials

References

19.1  Introduction

The materials used for high-frequency power transformers are under permanent improvement. Soft magnetic ferrites designed for high operating frequencies and equipped with increasing DC-bias behavior are state of the art for a lot of applications. There are installed capacities for the production of more than 300,000 tons soft ...

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