Common-neutral-type AC/DC/AC topologies with PFC pre-regulator

In this paper, new topologies of single-phase PFC-pre-staged AC/DC/AC power converters are presented. By introducing a common-neutral connection to simplify the conventional connection of AC/DC/AC power converter structure, the authors derive new topologies which keep good performance, output safety-code conformance and provide extra advantages-fewer power devices and lower conduction losses.

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