By Topic

Using zero-current-switched quasiresonant converters as power factor preregulator

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

4 Author(s)
Sebastian, J. ; ETSII Div. de Ingenieria Electron. Univ. Politecnica de Madrid, Spain ; Uceda, J. ; Cobos, J.A. ; Gil, P.

Th use of zero-current-switched quasiresonant power converters (ZCS-QRCs) as power factor preregulators (PFPs) is studied. The study is applicable to boost, buck-boost, flyback, SEPIC, and Cuk topologies. The main conclusion obtained is that the switching frequency variation range using a half-wave resonant switch is lower than that using a full-wave resonant switch if the load connected to the output is almost constant. Moreover, using topologies with power transformers (flyback, SEPIC, or Cuk), this variation range can be minimized by choosing an adequate value of the normalized switching frequency at the peak of the sinusoidal input voltage. However, this range increases greatly when the load changes in the same manner. In this case, a smaller switching frequency variation range is obtained using the full-wave switch. However, this type of resonant switch decreases the efficiency because it handles reactive energy and then a tradeoff between switching frequency variation range and efficiency must be considered

Published in:

Industrial Electronics, Control and Instrumentation, 1991. Proceedings. IECON '91., 1991 International Conference on

Date of Conference:

28 Oct-1 Nov 1991