By Topic

Design procedure for high frequency operation of the modified series resonant APWM converter with improved efficiency and reduced size

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)
Tschirhart, D.J. ; Dept. of Electr. & Comput. Eng., Queen''s Univ., Kingston, ON, Canada ; Jain, P.K.

In this paper, a generalized analysis for the auxiliary network in a modified series resonant asymmetrical pulse-width-modulated (APWM) converter is performed to produce a design procedure that ensures ZVS is achieved for any converter design. New equations that correctly predict the magnitude of auxiliary current are obtained by accounting for the trapezoidal nature of the waveforms associated with high frequency operation, and the dead time between the switches in the half bridge. A design example of a 48 V/1.2 V, 25 A converter operating at 1 MHz is chosen to highlight the validity of the proposed design and that superior results can be achieved if the resonant tank is designed in tandem with the auxiliary network. Experimental results verify that ZVS is achieved, and that the proposed design reduces the auxiliary inductor by close to a factor of 3.

Published in:

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

Date of Conference:

21-25 Feb. 2010