By Topic

Modeling and design considerations of coupled inductor 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)
Guangyong Zhu ; Auscom Engineering, Inc., A subsidiary of Compal Electronics, Inc., One Dell Way, Round Rock, TX 78682 ; Kunrong Wang

In this part of the sequel on the modeling and analysis of coupled inductors and coupled inductor based multiphase switching converters, the recently developed symmetrical coupled inductor model is first extended to include the inductor winding dc resistance (DCR). The extended model is then used to analyze the influence of the coupling on the DCR based current sensing schemes popularly used in multi-phase switching regulators. It is found that the time-constant matching condition in coupled inductor converters needs to be modified to include the coupling coefficient. The proposed model is also used to derive the small-signal control-to-output transfer function of the converters incorporating coupled inductors, with which the effect of coupling on the dynamic behaviors of the converter power stage, such as resonant frequency and damping factor, can be easily evaluated.

Published in:

Applied Power Electronics Conference and Exposition (APEC), 2010 Twenty-Fifth Annual IEEE

Date of Conference:

21-25 Feb. 2010