By Topic

Some origins and mitigation of conducted common mode EMI in switching converters

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

2 Author(s)
T. Broom ; Rand Afrikaans Univ., Johannesburg, South Africa ; I. W. Hofsajer

Conducted common mode EMI in switchmode power supplies originates due to an excess or deficiency in charge required by the physical circuit structure, in order to attain the operational potentials. As the operational potentials change during switching conditions, the required charge must be drawn from an external source, giving rise to a common mode current. The physics of this process is explained, and a simple but effective experimental procedure is described in order to determine the charge distribution, and self-capacitances of points in a physical circuit. Mitigation of the common mode current problem by means of an internal charge balance is presented.

Published in:

Africon Conference in Africa, 2002. IEEE AFRICON. 6th  (Volume:2 )

Date of Conference:

2-4 Oct. 2002