Improved peak-current-mode control for unity power factor AC/DC converters in discontinuous conduction mode

Author

Alonge, F. ; Librizzi, F. ; Raimondi, F.M. ; Scalia, P. ; Urso, A.

Author_Institution

Dipt. di Ingegneria Autom. e Inf., Palermo Univ., Italy

Volume

2

fYear

1999

fDate

1999

Firstpage

927

Abstract

In this paper, a new control technique based on the linear peak-current-mode is proposed for power factor correction in AC/DC boost-like power converters in the discontinuous conduction mode at a constant switching frequency. This technique uses a current loop and a slope varying compensating ramp, with input and output feedback signals, to achieve unity power factor even at low output voltages and can be implemented with simple circuit solutions. Experimental results are displayed with the aim of showing the validity of the proposed method

Keywords

AC-DC power convertors; control system synthesis; electric current control; feedback; harmonic distortion; power conversion harmonics; power factor correction; rectifying circuits; switching circuits; boost-like power converters; constant switching frequency; current loop; discontinuous conduction mode; input feedback signals; output feedback signals; peak-current-mode control improvement; power factor correction; slope varying compensating ramp; unity power factor AC/DC power converters; Circuits; Costs; DC-DC power converters; Lab-on-a-chip; Output feedback; Power engineering and energy; Reactive power; Shape control; Switching converters; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Drive Systems, 1999. PEDS '99. Proceedings of the IEEE 1999 International Conference on

Print_ISBN

0-7803-5769-8

Type

conf

DOI

10.1109/PEDS.1999.792831

Filename

792831