APPARATUS FOR ENERGY TRANSFER USING CONVERTER AND METHOD OF MANUFACTURING SAME
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Abstract
According to an aspect of the invention, a motor drive circuit includes a first energy storage device configured to supply electrical energy, a bi-directional DC-to-DC voltage converter coupled to the first energy storage device, a voltage inverter coupled to the bi-directional DC-to-DC voltage converter, and an input device configured to receive electrical energy from an external energy source. The motor drive circuit further includes a coupling system coupled to the input device, to the first energy storage device, and to the bi-directional DC-to-DC voltage converter. The coupling system has a first configuration configured to transfer electrical energy to the first energy storage device via the bi-directional DC-to-DC voltage converter, and has a second configuration configured to transfer electrical energy from the first energy storage device to the voltage inverter via the bi-directional DC-to-DC voltage converter.
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Citations
40 Claims
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1-20. -20. (canceled)
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21. A motor drive circuit comprising:
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a energy storage device configured to supply electrical energy; a bi-directional DC-to-DC voltage converter configured to convert a first voltage to a second voltage; a voltage inverter configured to invert a DC voltage to an AC voltage; an input device coupled to the bi-directional DC-to-DC voltage converter and configured to receive electrical energy from an external energy source; a first coupling device configured to selectively couple the energy storage device to the bi-directional DC-to-DC voltage converter; a second coupling device configured to selectively couple the energy storage device to the bi-directional DC-to-DC voltage converter; a third coupling device configured to selectively couple the bi-directional DC-to-DC voltage converter to the voltage inverter. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. A method of manufacturing a motor drive circuit comprising:
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providing a coupling system; coupling the coupling system to a first energy storage device, to a voltage inverter, to a bi-directional DC-to-DC voltage converter; coupling an input device to the bi-directional DC-to-DC voltage converter; configuring a first coupling device of the coupling system to selectively couple the first energy storage device to the bi-directional DC-to-DC voltage converter; configuring a second coupling device of the coupling system to selectively couple the first energy storage device to the bi-directional DC-to-DC voltage converter; configuring a third coupling device of the coupling system to selectively couple the bi-directional DC-to-DC voltage converter to the voltage inverter. - View Dependent Claims (32, 33, 34)
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35. A traction system comprising:
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an electric motor configured to propel a vehicle; a voltage inverter configured to supply an AC power signal to the electric motor; and a motor drive circuit configured to supply a DC power signal to the voltage inverter, the motor drive circuit comprising; a first battery; a voltage inverter; a coupling system comprising a plurality of contactors; a bi-directional buck/boost converter comprising; an inductor coupleable to the first battery via a first contactor of the plurality of contactors; and a transistor coupleable to the second battery via a second contactor of the plurality of contactors and coupleable to the voltage inverter via a third contactor of the plurality of contactors; and an input device configured to receive electrical energy from an external energy source and to supply the electrical energy to the bi-directional buck/boost converter. - View Dependent Claims (36, 37, 38, 39, 40)
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Specification