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This paper details efficiency optimized operation and design of a bi-directional and isolated five-level Dual Active Bridge (5LDAB) converter for an application that requires ultra-wide voltage and power ranges. The rated power of the considered converter is 7.5kW, the specified input voltage range is 150V ≤ Vdc1 ≤ 800V and the output voltage is constant, Vdc2 = 700V. In order to achieve high efficiency...
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