By Topic

Evaluation of the shielding effects on printed-circuit-board transformers using ferrite plates and copper sheets

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
$33 $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)
S. C. Tang ; Dept. of Electron. Eng., City Univ. of Hong Kong, China ; S. Y. Hui ; H. S. -H. Chung

This paper presents an effective shielding technique and a simple structure for printed-circuit-board (PCB) transformers. The performance of PCB transformers using the proposed shielding technique is evaluated using thin ferrite plates and copper sheets. Without affecting the transformer energy efficiency, the shielding method under investigation can achieve 28 dB shielding effectiveness (SE), which is much higher than the SE (about 4 dB) obtained by shielding the transformer windings with only two ferrite plates. The proposed PCB transformer structure is very simple and has high energy efficiency (>90%) for Megahertz operation.

Published in:

IEEE Transactions on Power Electronics  (Volume:17 ,  Issue: 6 )