Single stage AC-to-DC converter to comply with IEC-1000-3-2 using the delayed forward converter

Author

Sebastián, J. ; Hernando, M.M. ; Villegas, P. ; Fernandez, P. ; Fontán, A.

Author_Institution

Dept. de Ingenieria Electr., Electron. de Comput. y Sistemas, Oviedo Univ., Spain

fYear

1998

fDate

12-15 Oct 1998

Firstpage

37

Lastpage

46

Abstract

A new input current shaper is proposed in this paper. The operating principle is based on the connection of an additional output of the power converter between the input rectifier and the bulk capacitor in a conventional switching-mode power supply with no power factor correction. This additional output is obtained from the converter´s transformer and it is the same type of output as the output of a delayed forward converter, which has one extra inductor in comparison with a standard forward converter. With the final topology, a good trade-off between capacitor voltage, re-cycling energy and harmonic content can be established in order to comply with IEC 1000-3-2 specifications

Keywords

AC-DC power convertors; harmonic distortion; power conversion harmonics; power transformers; rectifying circuits; switched mode power supplies; IEC 1000-3-2 specifications; bulk capacitor; capacitor voltage; delayed forward converter; harmonic content; input current shaper; input rectifier; operating principle; re-cycling energy; single-stage AC-to-DC power converter; switching-mode power supply; transformer; Analog-digital conversion; DC-DC power converters; Delay; Diodes; IEC standards; Inductors; Rectifiers; Resistors; Topology; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Congress, 1998. CIEP 98. VI IEEE International

Conference_Location

Morelia

Print_ISBN

0-7803-5006-5

Type

conf

DOI

10.1109/CIEP.1998.750658

Filename

750658