SINGLE PHASE REDUNDANT POWER SUPPLY SYSTEMS FOR REDUCING PHASE CURRENT IMBALANCES
First Claim
1. A system comprising:
- a first power supply having an input coupled to a first phase voltage in a polyphase power distribution system, and an output coupled to a load for supplying an amount of DC power to the load;
a second power supply having an input for coupling to a second phase voltage in the polyphase power distribution system, and an output coupled to the load for supplying an amount of DC power to the load;
the output of the first power supply coupled in parallel with the output of the second power supply; and
at least the first power supply configured to reduce phase current imbalances in the polyphase power distribution system by adjusting the amount of DC power supplied to the load by the first power supply and the amount of DC power supplied to the load by the second power supply.
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Accused Products
Abstract
A single phase redundant power supply system may include a first power supply having an input coupled to a first phase voltage in a polyphase power distribution system and an output coupled to a load for supplying an amount of DC power to the load, and a second power supply having an input for coupling to a second phase voltage in the polyphase power distribution system and an output coupled to the load for supplying an amount of DC power to the load. At least the first power supply is configured to reduce phase current imbalances in the polyphase power distribution system by adjusting the amount of DC power supplied to the load by the first power supply and the amount of DC power supplied to the load by the second power supply.
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Citations
32 Claims
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1. A system comprising:
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a first power supply having an input coupled to a first phase voltage in a polyphase power distribution system, and an output coupled to a load for supplying an amount of DC power to the load; a second power supply having an input for coupling to a second phase voltage in the polyphase power distribution system, and an output coupled to the load for supplying an amount of DC power to the load; the output of the first power supply coupled in parallel with the output of the second power supply; and at least the first power supply configured to reduce phase current imbalances in the polyphase power distribution system by adjusting the amount of DC power supplied to the load by the first power supply and the amount of DC power supplied to the load by the second power supply. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A system comprising:
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a first plurality of AC/DC power supplies fed by a first phase voltage in a three phase power distribution system; a second plurality of AC/DC power supplies fed by a second phase voltage in the three phase power distribution system; a third plurality of AC/DC power supplies fed by a third phase voltage in the three phase power distribution system; each power supply having an output coupled in parallel with at least one other power supply fed by a different phase voltage; and a controller configured to generate control signals for adjusting a DC output of one or more of the power supplies to reduce phase current imbalances in the three phase power distribution system. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31)
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32-57. -57. (canceled)
Specification