Cart (Loading....) | Create Account
Close category search window
 

The Impact of Vibration Due to Magnetostriction on the Core Losses of Ferrite Toroidals Under DC Bias

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

3 Author(s)
Baguley, C.A. ; Electr. & Comput. Eng. Dept., Univ. of Auckland, Auckland, New Zealand ; Madawala, U.K. ; Carsten, B.

The ferrite cores of transformers and inductors are commonly excited under dc bias conditions in power electronic circuitry. Results have previously been presented showing core losses increase significantly with dc bias, along with various explanations for the cause. This paper presents measurements showing a strong correlation between core losses, and the magnetostrictive vibration caused by the presence of a dc bias. The measurements are made on power grade material ferrite toroidal cores at frequencies equal to, and distant from magnetomechanical resonance. Based on this evidence it is proposed that a mechanism causing core losses to increase with dc bias is the increase in vibration with dc bias, with losses being dependent on the amplitude and nature of the vibration waveform. The means by which core losses increase with vibration are also described.

Published in:

Magnetics, IEEE Transactions on  (Volume:47 ,  Issue: 8 )

Date of Publication:

Aug. 2011

Need Help?


IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2014 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.