Tracking supply AC regeneration system and method
AssigneePS Audio
InventorRobert Stadtherr
Life of this patent
Estimating the term…
Abstract
A circuit for implementing tracking supply alternating current (“AC”) regeneration is described. In one embodiment, the circuit comprises a line synchronization device for converting an incoming AC signal to a square wave, wherein the square wave is precisely in phase with the incoming AC signal; a processor for processing the square wave to synthesize a sine wave therefrom; a digital to audio converter (“DAC”) to convert the synthesized sine wave into an analog signal, wherein the analog signal is precisely in phase with the incoming AC signal; and an amplifier for amplifying the audio signal to a desired voltage level for driving a load.
Claims20
A circuit for implementing tracking supply alternating current (“AC”) regeneration, the circuit comprising:
- a line synchronization device for converting an incoming AC signal to a square wave, wherein the square wave is precisely in phase with the incoming AC signal;
- a processor for processing the square wave to synthesize a sine wave therefrom;
- a digital to audio converter (“DAC”) to convert the synthesized sine wave into an analog signal, wherein the analog signal is precisely in phase with the incoming AC signal;
- an amplifier for amplifying the audio signal to a desired voltage level for driving a load.
A method of implementing tracking supply alternating current (“AC”) regeneration, the method comprising:
- converting an incoming AC signal to a square wave that is precisely in phase with the incoming AC signal, wherein the square wave is at a first peak-to-peak voltage level;
- processing the square wave signal to generate a digital representation of a sine wave;
- converting the digital representation of the sine wave to an analog signal at a second peak-to-peak voltage level;
- and
- amplifying the analog signal to a desired level.
A system for implementing tracking supply alternating current (“AC”) regeneration, the system comprising:
- means for converting an incoming AC signal to a square wave that is precisely in phase with the incoming AC signal, wherein the square wave is at a first peak-to-peak voltage level;
- means for processing the square wave signal to generate a digital representation of a sine wave;
- means for converting the digital representation of the sine wave to an analog signal at a second peak-to-peak voltage level;
- and
- means for amplifying the filtered analog signal to a desired level.
A tracking supply alternating current regeneration method comprising superimposing a dual direct current (“DC”) supply voltage on a source of alternating current (“AC”) power, and synchronizing the dual DC supply voltage with the AC power to produce a range of available tracking power supply voltages sufficient to feed a power amplifier producing a desired output voltage.
Dependencies are inferred from the claim text.