Method and apparatus for controlling a DC/DC power converter
First Claim
1. A method for controlling a DC-DC power converter arranged to supply electric power originating from a DC power source to a high-voltage bus, the method comprising:
- determining a desired control mode for operating the DC-DC power converter, wherein the desired control mode comprises one of a voltage control mode and a current control mode;
determining a desired voltage for operating the DC-DC power converter based upon the desired control mode;
determining a desired differential current for operating the DC-DC power converter based upon the desired control mode;
determining a desired current for operating the DC-DC power converter based upon the desired differential current and the desired voltage; and
controlling operation of the DC-DC power converter in the desired control mode based upon the desired voltage and the desired current.
1 Assignment
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Accused Products
Abstract
A DC-DC power converter is described, and includes switched inductance circuits arranged in parallel, current sensors disposed to monitor one of the switched inductance circuits, and a controller. The DC-DC power converter supplies electric power originating from a DC power source to a high-voltage bus. Control and operation includes determining a desired control mode for operating the DC-DC power converter, wherein the desired control mode includes one of a voltage control mode and a current control mode. A desired voltage and a desired differential current for operating the DC-DC power converter are determined based upon the desired control mode. A desired current for operating the DC-DC power converter is determined based upon the desired differential current. Operation of the DC-DC power converter is controlled in the desired control mode based upon the desired voltage and the desired current.
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Citations
20 Claims
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1. A method for controlling a DC-DC power converter arranged to supply electric power originating from a DC power source to a high-voltage bus, the method comprising:
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determining a desired control mode for operating the DC-DC power converter, wherein the desired control mode comprises one of a voltage control mode and a current control mode; determining a desired voltage for operating the DC-DC power converter based upon the desired control mode; determining a desired differential current for operating the DC-DC power converter based upon the desired control mode; determining a desired current for operating the DC-DC power converter based upon the desired differential current and the desired voltage; and controlling operation of the DC-DC power converter in the desired control mode based upon the desired voltage and the desired current. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A DC-DC power converter arranged to supply electric power originating from a DC power source to a high-voltage bus, comprising:
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a plurality of interleaved switched inductance circuits, a bulk capacitor, and a HWIO (“
hardware input/output”
) circuit including a gate driver circuit and an electrical interface circuit;wherein each of the interleaved switched inductance circuits includes an inductor, a diode and a power semiconductor switch, and a current sensor; wherein the DC-DC power converter is operated at a fixed frequency with a preset cycle time; wherein the plurality of switched inductance circuits are operated with offsets in phase during each cycle period; and a controller, in communication with the HWIO circuit, the controller including a memory device including an instruction set, the instruction set executable to; determine a desired control mode for operating the DC-DC power converter, wherein the desired control mode comprises one of a voltage control mode and a current control mode; determine a desired voltage for operating the DC-DC power converter based upon the desired control mode; determine a desired differential current for operating the DC-DC power converter based upon the desired control mode; determine a desired current for operating the DC-DC power converter based upon the desired differential current and the desired voltage; and control operation of the DC-DC power converter in the desired control mode based upon the desired voltage and the desired current. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification