Power conversion regulator with predictive energy balancing
First Claim
1. A power-conversion regulator comprising;
- an input adapted to receive energy from an energy source;
an inductive reactor for temporary energy storage;
an output reactor for output filtration;
an output adapted to supply energy to a load;
a reference signal to which the output is compared to provide a desired output;
control circuitry for controlling the charging of the inductive reactor so that the amount of energy placed into the inductive reactor during inductive reactor charging is based approximately upon a per-chopping-cycle load energy requirement; and
turn-around circuitry is provided to terminate charging of the inductive reactor when the time available for inductive discharge decreases such that additional charge time yields a decrease in the amount of inductive energy that may be withdrawn within the chopping cycle.
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Accused Products
Abstract
A power-conversion regulator comprising an inductive reactor, an output filter reactor, and a switch for admitting energy to the inductive reactor, additionally comprises computation circuitry responsive to the flux in the inductive reactor, to a reference signal, to an output voltage, and sometimes to an output load current, for computing the quantity of energy that must be supplied to a load and to the output filter reactor to regulate the output voltage or current to a desired relationship with the reference signal during each chopping waveform cycle driving the switch. As the inductive reactor is charged from an input energy source, the computation circuitry predicts whether the energy in the inductive reactor has become adequate for the regulation.
31 Citations
27 Claims
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1. A power-conversion regulator comprising;
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an input adapted to receive energy from an energy source; an inductive reactor for temporary energy storage; an output reactor for output filtration; an output adapted to supply energy to a load; a reference signal to which the output is compared to provide a desired output; control circuitry for controlling the charging of the inductive reactor so that the amount of energy placed into the inductive reactor during inductive reactor charging is based approximately upon a per-chopping-cycle load energy requirement; and turn-around circuitry is provided to terminate charging of the inductive reactor when the time available for inductive discharge decreases such that additional charge time yields a decrease in the amount of inductive energy that may be withdrawn within the chopping cycle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A method of regulating a power converter comprising the steps of:
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at a point in a chopping cycle of said regulator estimating the amount of load energy required to maintain the output of a regulator at a desired voltage or current for the cycle; charging an inductive reactor with energy; determining or estimating the amount of stored energy contained within the field of the inductive reactor; comparing the amount of load energy with the amount of stored energy; controlling the charging of the inductive reactor to cause the stored energy to be sufficient to provide the load energy; and delivering to said output at least a portion of the stored energy in the field of the inductive reactor. - View Dependent Claims (26, 27)
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Specification