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US 2009/0021081 A1Published application
Methods and apparatus for three-phase inverter with reduced energy storage
AssigneeRaytheon Company
InventorsBoris S. Jacobson, Evgeny N. Holmansky
Life of this patent
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Abstract
Methods and apparatus for a circuit including first and second energy sources, a rectifier coupled to the first and second energy sources, first and second energy storage devices coupled end-to-end across the positive and negative rails, and a single three-level inverter coupled to the rectifier for providing three-phase sinusoidal output voltages.
Claims23
A circuit, comprising:
- first and second energy sources coupled in series and having a positive rail, a negative rail, and a neutral;
- first and second energy storage devices coupled to the first and second energy sources;
- and
- a single multi-level inverter coupled to the positive rail, negative rail, and neutral for providing three-phase sinusoidal output voltages.
1 more element
A method comprising:
- coupling first and second energy sources in series and having a positive rail, a negative rail, and a neutral;
- coupling first and second energy storage devices to the first and second energy sources;
- and
- coupling a single three-level inverter to the positive rail, negative rail, and neutral for providing three-phase sinusoidal output voltages.
1 more element
Dependencies are inferred from the claim text.