High yield AC-AC power converter and method therefor
AssigneeThe Boeing Company
InventorsMichael A. Carralero, Jimmy M. Quiambao
Life of this patent
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Abstract
An AC to AC power converter has a rectifier configured to receive an AC signal. An H-Bridge is coupled to the rectifier and the DC Filter. A processor is coupled to the rectifier and to the H-Bridge, wherein the processor is configured to produce a pulse to modulate a rectified input or a constant DC input to the H-Bridge. A wave filter is coupled to the H-Bridge and configured to modulate an output of the H-Bridge to an AC voltage of a desired frequency, wherein an output of the wave filter is coupled to the processor.
Claims22
An AC to AC power converter comprising:
- a rectifier configured to receive an AC signal source;
- an H-Bridge coupled to the rectifier;
- a processor coupled to the AC signal source, the rectifier and to the H-Bridge, wherein the processor is configured to sample the AC signal source to determine periodic cycles of the AC signal source, wherein the processor produces a pulse to modulate a rectified DC input to the H-Bridge when the AC signal source is above a predefined frequency and produces a square wave when the AC signal source is one of below the predefined frequency or in steady state;
- and
- a wave filter coupled to the H-Bridge configured to modulate an output of the H-Bridge to an AC voltage of a desired frequency, wherein an output of the wave filter is coupled to the processor.
An AC to AC power converter comprising:
- a rectifier configured to receive an AC signal;
- an H-Bridge coupled to the rectifier;
- a DC filter coupled to the rectifier and the H-Bridge;
- a processor coupled to the rectifier and to the H-Bridge, wherein the processor is configured to produce a pulse to modulate a rectified DC input to the H-Bridge when the AC signal source is above a predefined frequency and produce a square wave when the AC signal source is one of below the predefined frequency or in steady state;
- an H-Bridge driver coupled to the H-Bridge and the processor;
- and
- a sine wave filter coupled to the H-Bridge configured to modulate an output of the H-Bridge to an AC voltage of a desired frequency, wherein an output of the wave filter is coupled to the processor.
A method for converting AC power, comprising:
- receiving an input AC signal;
- sending the input AC signal to a processor to sample the input AC signal to determine periodic cycles of the input AC signal;
- converting the input AC signal into a full wave rectified signal;
- producing a pulse to modulate the full wave rectified signal when the input AC signal is above a predefined frequency or a square wave when the input AC signal is one of below the predefined frequency or in steady state;
- sending the modulated full wave rectified signal to an H-Bridge;
- sending the modulated full wave rectified signal to a DC Filter;
- and
- filtering an output signal of the H-Bridge to an AC voltage signal of a desired frequency.
Dependencies are inferred from the claim text.