Core Loss of MgZn Ferrite.

Accurate Prediction of Ferrite Core Loss with Nonsinusoidal Waveforms Using Only Steinmetz Parameters

An improved calculation of ferrite core loss for nonsinusoidal waveforms separates a flux trajectory into major and minor loops via a new recursive algorithm. It is highly accurate and outperforms two previous methods for our measured data. The only characteristics of the material required are the standard Steinmetz-equation parameters.

Analysis of volume distribution of power loss in ferrite cores

Reduction of the Q-Loss-Effect in Ferrite-Loaded Cavities

The performance of cavities loaded with Ni-Zn ferrites under parallel DC-biasing is often limited by the highloss-effect (HLE) or quality-loss-effect (QLE) [1]. After some milliseconds at fixed frequencies, a sudden drop of the resonator's voltage occurs above a specific threshold level. The mechanism of this loss has not been fully understood yet. At GSI, a simple method has been found to work...

A high-voltage pulse transformer with a modular ferrite core.

A high ratio (winding ratio of 1:80) pulse transformer with a modular ferrite core was developed for a repetitive resonant charging system. The magnetic core is constructed from 68 small blocks of ferrites, glued together by epoxy resin. This allows a high degree of freedom in choosing core shape and size. Critical issues related to this modular design are the size tolerance of the individual f...

High-Frequency Dimensional Effects in Ferrite-Core Magnetic Devices

(ABSTRACT) MnZn ferrites are widely used in power electronics applications where the switching frequency is in the range of several tens of kilohertz to a megahertz. In this range of frequencies the combination of relatively high permeability and relatively low conductivity found in MnZn ferrite helps to minimize the size of magnetic devices while maintaining high efficiency. The continuing imp...