Low output voltage AC/DC converter with a new scheme of synchronous rectification that complies with IEC 1000-3-2 regulations

Author

Fernández, A. ; Sebastián, J. ; Alou, P. ; Cobos, J.A. ; Rascón, M.

Author_Institution

DIEECS-Tecnologia Electron., Oviedo Univ., Spain

Volume

2

fYear

2000

fDate

6/22/1905 12:00:00 AM

Firstpage

686

Abstract

In order to obtain low output voltages with a high efficiency, synchronous rectification is mandatory. When the output voltage is low, it is very difficult to use self-driven synchronous rectification and additional windings are used to properly drive the MOSFETs. Moreover, IEC 1000-3-2 regulations impose low input current harmonic contents for power levels higher than 75 W. A recently proposed synchronous rectification scheme is combined with a modified input current shaper to design a 100 W, 3.3 V AC/DC converter that complies with IEC 1000-3-2 regulations

Keywords

AC-DC power convertors; IEC standards; harmonic distortion; power MOSFET; power conversion harmonics; power semiconductor switches; rectifying circuits; switching circuits; 100 W; 3.3 V; IEC 1000-3-2 regulations; additional windings; input current harmonics; low-output voltage AC/DC converter; modified input current shaper; power MOSFETs; self-driven synchronous rectification; synchronous rectification; Circuits; Diodes; IEC standards; Low voltage; MOSFETs; Microprocessors; Power supplies; Power system harmonics; Rectifiers; Topology;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Power Electronics Conference and Exposition, 2000. APEC 2000. Fifteenth Annual IEEE

Conference_Location

New Orleans, LA

Print_ISBN

0-7803-5864-3

Type

conf

DOI

10.1109/APEC.2000.822579

Filename

822579