Systems and methods for controlling power converters
First Claim
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1. A system for controlling a power converter having an inductive component including a first end and a second end, comprising:
- a low pass filter for producing a ground-referenced voltage across the inductive component that is proportional to an average DC current flowing through the inductive component, wherein the low pass filter is electrically connected to both the first end and second end of the inductive component through circuit elements capable of passing a DC current at all times during normal operation of controlling the power converter; and
a control device electrically coupled to the low pass filter for;
calculating the average DC current through the inductive component using the ground-referenced voltage; and
controlling the power converter using the calculated average DC current, wherein controlling the power converter comprises one of;
controlling the power converter for maximizing converter input current,controlling the power converter for maximizing converter input power,controlling the power converter for maximizing converter output current, andcontrolling the power converter for maximizing converter output power.
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Abstract
A system for controlling a power converter having an inductive component is disclosed. The system includes a low pass filter electrically coupled to the inductive component for producing a source referenced voltage proportional to a current flowing through the inductive component. The system also includes a control device electrically coupled to the low pass filter for calculating the current through the inductive component using the source referenced voltage and controlling the power converter using the calculated current.
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Citations
12 Claims
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1. A system for controlling a power converter having an inductive component including a first end and a second end, comprising:
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a low pass filter for producing a ground-referenced voltage across the inductive component that is proportional to an average DC current flowing through the inductive component, wherein the low pass filter is electrically connected to both the first end and second end of the inductive component through circuit elements capable of passing a DC current at all times during normal operation of controlling the power converter; and a control device electrically coupled to the low pass filter for; calculating the average DC current through the inductive component using the ground-referenced voltage; and controlling the power converter using the calculated average DC current, wherein controlling the power converter comprises one of; controlling the power converter for maximizing converter input current, controlling the power converter for maximizing converter input power, controlling the power converter for maximizing converter output current, and controlling the power converter for maximizing converter output power. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for controlling a power converter having an inductive component including a first end and a second end, comprising:
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electrically transmitting a current having an average DC level through the inductive component to a low pass filter, wherein the low pass filter is electrically connected to both the first end and the second end of the inductive component through circuit elements capable of passing a DC current at all times during normal operation of controlling the power converter; filtering a voltage across the inductive component through the low pass filter to produce a ground-referenced voltage proportional to the average DC level; electrically transmitting the ground-referenced voltage to a control device; calculating the average DC level using the ground-referenced voltage; and controlling the power converter using the calculated average DC level, wherein controlling the power converter comprises one of; controlling the power converter for maximizing converter input current, controlling the power converter for maximizing converter input power, controlling the power converter for maximizing converter output current, and controlling the power converter for maximizing converter output power. - View Dependent Claims (10, 11, 12)
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Specification