Asymmetric power flow controller for a power converter and method of operating the same
First Claim
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1. A system, comprising:
- a first controller that;
receives a first measurement indicative of an input voltage provided to a plurality of converter stages;
receives a second measurement indicative of an output voltage associated with the plurality of converter stages;
determines a plurality of current outputs for each of the plurality of converter stages based on the first measurement and the second measurement, wherein at least two of the plurality of current outputs are unequal; and
a second controller that;
receives the plurality of current outputs from the first controller;
receives a plurality of measurements indicative of a plurality of load currents associated with the plurality of converter stages;
determines a plurality of drive signals for a plurality of driver circuits associated with the plurality of converter stages based on the plurality of current outputs and the plurality of measurements; and
sends the plurality of drive signals to the plurality of driver circuits, wherein the plurality of drive signals causes the plurality of driver circuits to adjust an operation of the plurality of converter stages to output the plurality of current outputs and maintain an unequal current allocation among the at least two of the plurality of current outputs.
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Abstract
A controller for a power converter formed with a plurality of converter stages, and method of operating the same. In one embodiment, the controller includes a power system controller configured to determine an unequal current allocation among the plurality of converter stages based on an operation of the power converter. The controller also includes a converter stage controller configured to control an output current produced by each of the plurality of converter stages in response to the current allocation.
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20 Claims
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1. A system, comprising:
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a first controller that; receives a first measurement indicative of an input voltage provided to a plurality of converter stages; receives a second measurement indicative of an output voltage associated with the plurality of converter stages; determines a plurality of current outputs for each of the plurality of converter stages based on the first measurement and the second measurement, wherein at least two of the plurality of current outputs are unequal; and a second controller that; receives the plurality of current outputs from the first controller; receives a plurality of measurements indicative of a plurality of load currents associated with the plurality of converter stages; determines a plurality of drive signals for a plurality of driver circuits associated with the plurality of converter stages based on the plurality of current outputs and the plurality of measurements; and sends the plurality of drive signals to the plurality of driver circuits, wherein the plurality of drive signals causes the plurality of driver circuits to adjust an operation of the plurality of converter stages to output the plurality of current outputs and maintain an unequal current allocation among the at least two of the plurality of current outputs. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method, comprising:
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receiving, via a first controller, a plurality of current outputs for each of a plurality of converter stages of a power converter from a second controller, wherein the second controller determines the plurality of current outputs for each of the plurality of converter stages based on an input voltage provided to the plurality of converter stages and an output voltage associated with the plurality of converter stages, wherein at least two of the plurality of current outputs are unequal; receiving, via the first controller, a plurality of measurements indicative of a plurality of load currents associated with the plurality of converter stages; determining, via the first controller, a plurality of drive signals for a plurality of driver circuits associated with the plurality of converter stages based on the plurality of current outputs and the plurality of measurements; and sending, via the first controller, the plurality of drive signals to the plurality of driver circuits, wherein the plurality of drive signals causes the plurality of driver circuits to adjust an operation of the plurality of converter stages to output the plurality of current outputs and maintain an unequal current allocation among the at least two of the plurality of current outputs. - View Dependent Claims (10, 11, 12, 13, 14)
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15. A method, comprising:
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receiving, via a first controller, a first measurement indicative of an input voltage provided to a plurality of converter stages of a power converter; receiving, via the first controller, a second measurement indicative of an output voltage associated with the plurality of converter stages; determining, via the first controller, a plurality of current outputs for each of the plurality of converter stages based on the first measurement and the second measurement, wherein at least two of the plurality of current outputs are unequal; and sending, via the first controller, the plurality of current outputs to a second controller that causes the plurality of converter stages to output the plurality of current outputs and maintain an unequal current allocation among the at least two of the plurality of current outputs. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification