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A unity power factor buck pre-regulator with feedforward of the output inductor current

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2 Author(s)
Pottker de Souza, F. ; Dept. of Electr. Eng., Univ. Fed. de Santa Catarina, Florianapolis, Brazil ; Barbi, I.

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

Published in:

Applied Power Electronics Conference and Exposition, 1999. APEC '99. Fourteenth Annual  (Volume:2 )

Date of Conference:

14-18 Mar 1999