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http://dx.doi.org/10.6113/TKPE.2013.18.4.342

An Improved Non-Isolated 3-Level High Step-Up Boost Converter  

Kim, Su-Han (School of Energy Eng., Kyungpook National University)
Cha, Hon-Nyong (School of Energy Eng., Kyungpook National University)
Kim, Heung-Geun (Dept. of Electrical Eng., Kyungpook National University)
Choi, Byung-Cho (School of Electronics Eng., Kyungpook National University)
Publication Information
The Transactions of the Korean Institute of Power Electronics / v.18, no.4, 2013 , pp. 342-348 More about this Journal
Abstract
In this paper, an improved non-isolated 3-level high step-up boost converter is proposed. By using the well known duality principle, the proposed converter is derived from two-phase buck converter. Compared with the traditional boost converter and 3-level boost converter, the proposed converter can obtain very high voltage conversion ratio and the voltage stress of switching devices and diodes is only 1/4 of the output voltage. A 1 kW prototype converter is built and tested to verify performances of the proposed converter.
Keywords
boost converter; duality principle; high voltage gain; 3-level converter; soft-switching;
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Times Cited By KSCI : 1  (Citation Analysis)
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