System and method for bidirectional DC-AC power conversion
First Claim
1. A power converter, comprising:
- a power input configured to receive input power from an AC power source;
a power output configured to provide output power to a load;
a battery interface configured to exchange DC power with a battery; and
power converter circuitry coupled to the power input, the power output, and the battery interface, the power converter circuitry adapted to, in a first interconnection configuration, convert the input power into the DC power at the battery interface, and further adapted to, in a second interconnection configuration, convert the DC power at the battery interface into the output power, the power converter circuitry having;
a power line coupled to at least one of the power input and the power output;
a transformer;
a first connection node switchably connected to the power line in the first interconnection configuration and switchably connected to the transformer in the second interconnection configuration; and
a second connection node switchably connected to the transformer in the first interconnection configuration and switchably connected to the power line in the second interconnection configuration.
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Accused Products
Abstract
A power converter includes a power input configured to receive input power from an AC power source, a power output configured to provide output power to a load, a battery interface configured to exchange DC power with a battery, and power converter circuitry. The power converter circuitry is adapted to, in a first interconnection configuration, convert the input power into the DC power at the battery interface, and, in a second interconnection configuration, convert the DC power at the battery interface into the output power. The power converter circuitry has a power line, a transformer, a first connection node switchably connected to the power line in the first interconnection configuration and switchably connected to the transformer in the second interconnection configuration, and a second connection node switchably connected to the transformer in the first interconnection configuration and switchably connected to the power line in the second interconnection configuration.
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Citations
20 Claims
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1. A power converter, comprising:
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a power input configured to receive input power from an AC power source; a power output configured to provide output power to a load; a battery interface configured to exchange DC power with a battery; and power converter circuitry coupled to the power input, the power output, and the battery interface, the power converter circuitry adapted to, in a first interconnection configuration, convert the input power into the DC power at the battery interface, and further adapted to, in a second interconnection configuration, convert the DC power at the battery interface into the output power, the power converter circuitry having; a power line coupled to at least one of the power input and the power output; a transformer; a first connection node switchably connected to the power line in the first interconnection configuration and switchably connected to the transformer in the second interconnection configuration; and a second connection node switchably connected to the transformer in the first interconnection configuration and switchably connected to the power line in the second interconnection configuration. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method of converting power in an uninterruptible power supply, the method comprising:
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connecting, in a first mode of operation, a first connection node of a power conversion circuit to an AC power source; connecting, in the first mode of operation, a second connection node of the power conversion circuit to a transformer; receiving, in the first mode of operation, input power from the AC power source; converting the input power into DC power during the first mode of operation; connecting, in a second mode of operation, the first connection node to the transformer; connecting, in the second mode of operation, the second connection node to a load; receiving, in the second mode of operation, the DC power from a DC power source; and converting the DC power into output power during the second mode of operation. - View Dependent Claims (14, 15, 16, 17, 18)
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19. A power converter, comprising:
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a power input configured to receive an input power from a power source; a power output configured to provide an output power to a load; a battery interface configured to exchange a battery power with a battery; a power converter circuit coupled to the power input, the power output, and the battery interface, the power converter circuit including a transformer, a plurality of selectively interconnectable electrical components, a first connection node disposed between at least two of the plurality of selectively interconnectable electrical components and switchably coupled to one of the power input and the transformer, and a second connection node disposed between at least two others of the plurality of selectively interconnectable electrical components and switchably coupled to one of the power input and the transformer; and means for selectively configuring an interconnection of the plurality of electrical components into one of a first interconnection configuration for converting the input power into the battery power and a second interconnection configuration for converting the battery power into the output power, the second interconnection configuration having a different interconnection of the plurality of electrical components than the first interconnection configuration. - View Dependent Claims (20)
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Specification