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

Analysis of planar sandwich inductors by current images

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

1 Author(s)
Roshen, W.A. ; ITT Power Syst. Corp., Tucson, AZ, USA

Inductors with spiral windings sandwiched between top- and bottom-plane thick magnetic plates are investigated theoretically using the method of current images. Expressions are obtained for the inductances, and magnetic fields of these planar structures assuming infinite plane thicknesses. The dependence of the inductance on the permeability and the distances between the spiral windings and the top and bottom plates is studied by numerically evaluating the inductance expressions. It is shown that, except for some limiting cases, the inductance depends only on the net distance between the top and bottom magnetic plates and is independent of the position of the spiral windings within the gap. Furthermore, it is found that, in contrast to open planar structures, the sandwich inductor can yield large values of inductances with the enhancement over air-core values limited only by the permeability of the magnetic plates. Numerical evaluation of the formulas for magnetic fields both inside the magnetic plates and in the gap are used to calculate energy density variation in the device, to estimate lateral dimensions of these sandwich inductors, to discuss construction of multiple devices in a single-sandwich structure, and to discuss calculation of losses in the sandwich inductors

Published in:

Magnetics, IEEE Transactions on  (Volume:26 ,  Issue: 5 )

Date of Publication:

Sep 1990

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.