Multi-level parallel power converters

摘要

Multi-level power converters are disclosed. In one embodiment, a multi-level power converter includes an input for receiving an input voltage and a converter output for providing a variable output voltage. The multi-level power converter includes a plurality of switching circuits. Each switching circuit is connected to the input in parallel with each other switching circuit. Each switching circuit includes an output. Each switching circuit is selectively operable to couple its output to the input voltage or a reference voltage. The multi-level power converter includes a parallel multi-winding autotransformer (PMA). The PMA includes a plurality of windings and a magnetic core having a plurality of magnetically connected columns. Each winding is positioned around a different one of the columns and has a beginning and an end. The output of each switching circuit is coupled to the beginning of a different winding. The end of each winding is connected to the converter output in parallel with each other winding.

主权项

1. A multi-level power converter comprising:
an input for receiving an input voltage; a converter output for providing a variable output voltage; a plurality of switching circuits, each switching circuit connected to the input in parallel with each other switching circuit, each switching circuit including an output, each switching circuit selectively operable to couple its output to the input voltage or a reference voltage; and a parallel multi-winding autotransformer (PMA), the PMA including a plurality of windings and a magnetic core having a plurality of magnetically connected columns, each winding positioned around a different one of the columns, each winding having a beginning and an end, the output of each switching circuit coupled to the beginning of a different winding, the end of each winding connected to the converter output in parallel with each other winding.