Title :
A unity power factor buck pre-regulator with feedforward of the output inductor current
Author :
De Souza, Fabiana Pöttker ; Barbi, Ivo
Author_Institution :
Dept. of Electr. Eng., Univ. Fed. de Santa Catarina, Florianapolis, Brazil
Abstract :
This paper presents a new technique to get unity power factor in a single-phase rectifier based on a buck preregulator. The proposed control technique, which employs a feedforward of the output inductor current, allows the use of a small low frequency inductor with a high current ripple. Theoretical analysis, design procedure and experimental results of a 750 W, 30 kHz prototype are presented in the paper
Keywords :
DC-DC power convertors; electric current control; feedforward; inductors; power factor correction; rectifying circuits; 30 kHz; 750 W; control technique; high current ripple; output inductor current feedforward; single-phase rectifier; small low frequency inductor; unity power factor buck pre-regulator; Circuits; Electronic mail; Frequency; Harmonic distortion; Inductance; Inductors; Power electronics; Reactive power; Switches; Voltage control;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 1999. APEC '99. Fourteenth Annual
Conference_Location :
Dallas, TX
Print_ISBN :
0-7803-5160-6
DOI :
10.1109/APEC.1999.750510
