German solar inverter maker Steca has gone for silicon carbide in the 4.6kW model of its latest grid-connected inverter for home use, the StecaGrid 4611_2, part of its coolcept fleX family. It has adopted a two-level converter, with bi-directional boost converters and an H4-topology for the ac output, which uses 16x 1.2kV 75mΩ SiC mosfets ...
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