A new type single-phase to three-phase converter

The authors have developed a new type single-phase to 3-phase electric power converter, voltano converter. With simple construction it produces fairly well-balanced 3-phase output power from a single-phase power source at high efficiency. The construction and the characteristics of the voltano converter are presented ; the characteristics show that the efficiency is more than 90 percent for a 2kVA voltano converter. The operating mechanism of the converter is explained, presenting a vector calculator, which gives, not only various circuit quantities in steady-state operation, but also an intuitive understanding of the operating mechanism.