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Open AccessArticle

A Zero Input Current Ripple ZVS/ZCS Boost Converter with Boundary-Mode Control

by Ching-Ming Lai 1,*, Ming-Ji Yang 1,† and Shih-Kun Liang 2,†
1
Department of Vehicle Engineering, National Taipei University of Technology, 1, Sec. 3, Chung-Hsiao E. Rd., Taipei 106, Taiwan
2
UPI Semiconductor Corp., 9F, No. 5, Taiyuan 1st St., Zhubei City, Hsinchu County 302, Taiwan
*
Author to whom correspondence should be addressed.
These authors contributed equally to this work.
Energies 2014, 7(10), 6765-6782; https://doi.org/10.3390/en7106765
Received: 9 August 2014 / Revised: 24 September 2014 / Accepted: 14 October 2014 / Published: 20 October 2014
In this paper, in order to achieve zero ripple conditions, the use of a ripple mirror (RM) circuit for the boost converter is proposed. The operation modes are studied and steady-state analyses performed to show the merits of the proposed converter. It is found that the proposed RM circuit technique can provide much better flexibility than the two-phase interleaved boost converter for locating the zero ripple operating point in the design stage. In addition, the choice of using a boundary-mode control is mainly based on the consideration of achieving both ZVS (zero voltage switching)/ZCS (zero current switching) soft-switching and constant on-time control for the converter. To verify the performance of the proposed converter, a 48 V input and 200 W/200 V output prototype is constructed. Experimental results verify the effectiveness of the proposed converter. View Full-Text
Keywords: boundary-mode control; ZVS/ZCS; boost; zero input ripple current boundary-mode control; ZVS/ZCS; boost; zero input ripple current
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Lai, C.-M.; Yang, M.-J.; Liang, S.-K. A Zero Input Current Ripple ZVS/ZCS Boost Converter with Boundary-Mode Control. Energies 2014, 7, 6765-6782.

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