Auxiliary drive apparatus and method of manufacturing same
First Claim
1. An auxiliary drive circuit comprising:
- a first energy storage device coupled to a first DC bus and configured to output electrical power to the first DC bus;
a first DC-to-DC voltage converter coupled to the first DC bus and to a second DC bus, the first DC-to-DC voltage converter configured to convert the electrical power to a first voltage and to output the first voltage to the second DC bus; and
a second DC-to-DC voltage converter coupled to the second DC bus and coupled to an auxiliary bus, the second DC-to-DC voltage converter configured to convert the first voltage to a second voltage and to provide the second voltage to the auxiliary bus, the auxiliary bus configured to provide an auxiliary voltage to an auxiliary drive system, wherein the second voltage is different from the first voltage;
wherein the auxiliary drive system comprises a control device configured to independently control a voltage input to an auxiliary load.
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Accused Products
Abstract
An auxiliary drive circuit including a first energy storage device coupled to a first DC bus and configured to output electrical power to the first DC bus, and a first DC-to-DC voltage converter coupled to the first DC bus and to a second DC bus, the first DC-to-DC voltage converter configured to convert the electrical power to a first voltage and to output the first voltage to the second DC bus. The auxiliary drive circuit also includes a second DC-to-DC voltage converter coupled to the second DC bus and coupled to an auxiliary bus, the second DC-to-DC voltage converter configured to convert the first voltage to a second voltage and to provide the second voltage to the auxiliary bus, the auxiliary bus configured to provide an auxiliary voltage to an auxiliary load, wherein the second voltage is different from the first voltage.
38 Citations
21 Claims
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1. An auxiliary drive circuit comprising:
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a first energy storage device coupled to a first DC bus and configured to output electrical power to the first DC bus; a first DC-to-DC voltage converter coupled to the first DC bus and to a second DC bus, the first DC-to-DC voltage converter configured to convert the electrical power to a first voltage and to output the first voltage to the second DC bus; and a second DC-to-DC voltage converter coupled to the second DC bus and coupled to an auxiliary bus, the second DC-to-DC voltage converter configured to convert the first voltage to a second voltage and to provide the second voltage to the auxiliary bus, the auxiliary bus configured to provide an auxiliary voltage to an auxiliary drive system, wherein the second voltage is different from the first voltage; wherein the auxiliary drive system comprises a control device configured to independently control a voltage input to an auxiliary load. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An auxiliary drive system comprising:
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a first energy storage device coupled to a first DC bus, the first energy storage device configured to output electrical power to the first DC bus; a first bi-directional buck/boost converter coupled to a second DC bus and to the first DC bus, the first bi-directional buck/boost converter configured to output a first voltage to the second DC bus; a voltage converter coupled between an auxiliary bus and the second DC bus, the voltage converter configured to convert the first voltage to a second voltage different from the first voltage, the second voltage output to the auxiliary bus; an auxiliary system coupled to the auxiliary bus and configured to receive an input voltage from the auxiliary bus, the auxiliary system comprised of a control device configured to independently control a voltage to the auxiliary bus; and a controller configured to regulate the first voltage output from the first bi-directional buck/boost converter and configured to regulate the second voltage output from the voltage converter. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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Specification