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In this paper a full-bridge phase-shift DC-DC converter that has the function of realizing zero-voltage switching (ZVS) is adopted into power electronic transformer (PET), and the functions of every part employing proper control strategy in the PET are analyzed. The simulation results show that this converter can still realize soft-switching in PET and it is appropriate to work in high frequency state...
This article is based on the needs of photovoltaic solar energy generation. A new type of multilevel DC chopper with a small bulk is researched. We analyzed three-level Boost circuit, found a kind of power supply module and gave a new family of multilevel converter topology. Four-level Boost circuit has been detailed analysis. Theoretically we analyzed its work and the four levels appear rear the...
This paper proposes a new isolated Three-Level(TL) DC-DC converter. The isolated Sepic TL DC-DC converter is based on the conventional Sepic converter. In this new converter the voltage stress of the switch is reduced to a half and the filter inductor is also significantly reduced. Its operation principle and control strategies of the converter are investigated. By modeling and simulation, the performances...
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