Multi-functional AC/DC converter
First Claim
1. A multi-functional apparatus for regulating voltage supplied to electrical loads and delivered to a rechargeable battery via a DC power bus, comprising:
- an AC to DC converter receiving an AC supply voltage, converting said AC supply voltage to a regulated DC voltage, and outputting said regulated DC voltage to said DC power bus; and
a power controller controlling conversion performed by said AC to DC converter as a function of a characteristic of said battery.
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Accused Products
Abstract
A multi-functional AC to DC converter (100) controls AC to DC conversion as a function of at least one characteristic of a battery (200) connected to a DC power bus (300), such that the voltage output by the converter (100) to the DC power bus (300) is varied to efficiently charge the battery (200). In one implementation of the present invention, a multi-functional AC to DC converter (100) also adjusts the voltage output to the DC power bus based on a starting condition of an auxiliary power unit (400) so that the supplied voltage is suitable for starting the APU (400). The present invention is suitable for implementation in an aircraft power system to maintain the voltage output within the compliance range of the DC power bus (e.g., between 27.5 and 29 Vdc) while adjusting the output voltage to efficiently charge a battery (200) connected to the bus (300) and/or start an APU (400) connected to the bus (300).
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Citations
24 Claims
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1. A multi-functional apparatus for regulating voltage supplied to electrical loads and delivered to a rechargeable battery via a DC power bus, comprising:
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an AC to DC converter receiving an AC supply voltage, converting said AC supply voltage to a regulated DC voltage, and outputting said regulated DC voltage to said DC power bus; and
a power controller controlling conversion performed by said AC to DC converter as a function of a characteristic of said battery. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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- 22. An aerospace DC power supply system, said aerospace DC power supply system utilizing a single AC to DC converter to supply a load connected to a DC power bus and to charge a battery continuously connected to said DC power bus in accordance with a multi-stage battery charging control scheme.
Specification