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A Novel Phase-shift Control Scheme for Interleaved Boost Converters Operating in Critical Conduction Mode

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6 Author(s)
Yanping Yin ; Sch. of Electr. Eng., Xi''an Jiaotong Univ., Shaanxi ; Xu Yang ; Yongjiang Bai ; Qiaoliang Chen
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Interleaving techniques are adopted to reduce input/output current or voltage ripples for converters with critical conduction mode. The paper studies and implements two types of phase-shift control schemes for critical interleaved boost PFC converters. Sub-harmonic oscillation phenomena occur at high line voltage when one of them is adopted. So this paper presents a quantitative analysis on the phenomena and proposes a novel phase-shift control scheme. Experimental results are presented in order to verify the feasibility and performance of the novel phase-shift control scheme.

Published in:

Applied Power Electronics Conference and Exposition, 2009. APEC 2009. Twenty-Fourth Annual IEEE

Date of Conference:

15-19 Feb. 2009