Apparatus for energy transfer using converter and method of manufacturing same
First Claim
1. A motor drive circuit comprising:
- 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;
an input device configured to receive electrical energy from an external energy source; and
a switch coupled to the input device, to the bi-directional DC-to-DC voltage converter, and to the voltage inverter, the switch having a first position configured to transfer electrical energy from the input device, through the switch, and to the first energy storage device via the bi-directional DC-to-DC voltage converter, and having a second position configured to transfer electrical energy from the first energy storage device, through the switch, and to the voltage inverter via the bi-directional DC-to-DC voltage converter.
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Accused Products
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
20 Claims
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1. A motor drive circuit comprising:
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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; an input device configured to receive electrical energy from an external energy source; and a switch coupled to the input device, to the bi-directional DC-to-DC voltage converter, and to the voltage inverter, the switch having a first position configured to transfer electrical energy from the input device, through the switch, and to the first energy storage device via the bi-directional DC-to-DC voltage converter, and having a second position configured to transfer electrical energy from the first energy storage device, through the switch, and to the voltage inverter via the bi-directional DC-to-DC voltage converter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of manufacturing a motor drive circuit comprising:
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providing a first energy storage device; coupling a bi-directional buck/boost converter to the first energy storage device; coupling a switch to the bi-directional buck/boost converter, the switch having a first position and a second position; coupling a DC-to-AC voltage inverter to the switch; coupling an input device to the switch, the input device configured to receive electrical energy from an external energy source; configuring the switch to cause a transfer of electrical energy from the input device, through the switch, and to the first energy storage device via the bi-directional buck/boost converter to charge the first energy storage device when positioned in the first position; and configuring the switch to cause a transfer of electrical energy from the first energy storage device, through the switch, and to the DC-to-AC voltage inverter via the bi-directional buck/boost converter when positioned in the second position. - View Dependent Claims (12, 13, 14)
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15. 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 bi-directional buck/boost converter coupled to the first battery, the first bi-directional buck/boost converter having a first inductor and a first transistor; an input device configured to receive electrical energy from an external energy source; and a multi-position switch having a first position configured to couple the first battery to the input device via the bi-directional buck/boost converter, and having a second position configured to couple the first battery to the voltage inverter via the bi-directional buck/boost converter. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification