Conversion system for converting direct current into alternating current

摘要

A method and apparatus for converting direct current into alternating current. An initial voltage level of an input voltage source is changed using a dual converter to form a plurality of voltage sources. Each of the plurality of voltage sources has voltage levels different from the initial voltage level. An inverter is supplied direct current from the plurality of voltage sources formed by the dual converter. The direct current is converted into a number of alternating currents using the inverter.

主权项

1. An apparatus comprising:
a dual converter configured to change an initial voltage level of an input voltage source to form a plurality of voltage sources in which each of the plurality of voltage sources has voltage levels different from the initial voltage level, wherein the dual converter comprises:
a first converter connected to the input voltage source and configured to change the initial voltage level of the input voltage source to form a first voltage source having a first voltage level that is different from the initial voltage level; anda second converter connected to the input voltage source in parallel with the first converter and configured to change the initial voltage level of the input voltage source to form a second voltage source having a second voltage level that is different from the initial voltage level: wherein the first voltage source and the second voltage source share a common ground; and wherein the first voltage level and the second voltage level are substantially equal in magnitude and opposite in sign with respect to the common ground; and an inverter configured to receive direct current from the plurality of voltage sources formed by the dual converter and convert the direct current into a number of alternating currents.