DCM frequency control algorithm for multi-phase DC-DC boost converters for input current ripple reduction
- Authors
- Joo, D.-M.[Joo, D.-M.]; Kim, D.-H.[Kim, D.-H.]; Lee, B.-K.[Lee, B.-K.]
- Issue Date
- Nov-2015
- Publisher
- 대한전기학회
- Keywords
- Interleaved boost converter; Input current ripple reduction; DCM operation and fixed duty - frequency control
- Citation
- Journal of Electrical Engineering and Technology, v.10, no.6, pp.2307 - 2314
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- Journal of Electrical Engineering and Technology
- Volume
- 10
- Number
- 6
- Start Page
- 2307
- End Page
- 2314
- URI
- https://scholarworks.bwise.kr/skku/handle/2021.sw.skku/42521
- DOI
- 10.5370/JEET.2015.10.6.2307
- ISSN
- 1975-0102
- Abstract
- In this paper, a discontinuous conduction mode (DCM) frequency control algorithm is proposed to reduce the input current ripple of a multi-phase interleaved boost converter. Unlike conventional variable duty and constant frequency control, the proposed algorithm controls the switching frequency to regulate the output voltage. By fixing the duty ratio at 1/N in the N-phase interleaved boost converter, the input current ripple can be minimized by ripple cancellation. Furthermore, the negative effects of the diode reverse recovery current are eliminated because of the DCM characteristic. A frequency controller is designed to employ the proposed algorithm considering the magnetic permeability change. The proposed algorithm is analyzed in the frequency domain and verified by a 600 W three-phase boost converter prototype that achieved 57% ripple current reduction. © The Korean Institute of Electrical Engineers.
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Collections - Information and Communication Engineering > School of Electronic and Electrical Engineering > 1. Journal Articles
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