By Topic

New driving scheme for high-efficiency synchronous rectification in wide-input-voltage-range DC/DC converter has output current always flowing through a low-resistance switch

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

5 Author(s)
Zumel, P. ; Div. de Ingenieria Electronica, Univ. Politecnica de Madrid, Spain ; Sokal, N.O. ; Alou, P. ; Cobos, J.A.
more authors

A new scheme for driving the synchronous rectifiers in the output side of DC/DC converters has the output current always flowing through a low-resistance switch, even when the input-side switch(es) are not conducting. The gate-source voltage of the synchronous-rectifier switches is independent of (instead of proportional to) the dc input voltage, therefore this scheme is especially well suited to converters that must accommodate a wide range of input voltage, e.g., >2:1. The scheme is based on two auxiliary output-side windings and additional driving circuitry (inverter + driver). To validate the concept, we designed, built, and tested a half-bridge converter for 24 Vdc to 1.5 Vdc at 10 A. The dependence of circuit operation on circuit parameters is analyzed (driver parameters, transformer coupling), and simulation and experimental results are presented.

Published in:

Power Electronics Specialists Conference, 2002. pesc 02. 2002 IEEE 33rd Annual  (Volume:1 )

Date of Conference:

2002