Systems and methods for providing an analog output signal using a class-g amplifier
AssigneeMaxim Integrated Products, Inc.
InventorsArman Hematy, Clemens Maria Hammerschmied
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Abstract
A method for providing an analog output signal includes (a) amplifying an analog first internal signal using a first Class-G amplifier to generate an analog first output signal, (b) providing the analog first output signal to a first load, and (c) configuring the first Class-G amplifier for an impedance of the first load by selecting one of a plurality of power supply rails to power the first Class-G amplifier at least partially based on a voltage across the first load. In some embodiments, an impedance of the first load may range from zero to 1,000 ohms.
Claims20
A method for providing an analog output signal, the method comprising:
- amplifying an analog first internal signal using a first Class-G amplifier to generate an analog first output signal;
- providing the analog first output signal to a first load;
- and
- configuring the first Class-G amplifier for an impedance of the first load by selecting one of a plurality of power supply rails to power the first Class-G amplifier at least partially based on a voltage across the first load.
A programmable controller, comprising:
- a processing system configured to generate a digital first internal signal at least partially according to programming instructions provided to the processing system;
- a first digital to analog (D/A) converter configured to convert the digital first internal signal to an analog first internal signal;
- and
- a first Class-G amplifier configured to:
- generate an analog first output signal by amplifying the analog first internal signal, and
- select one of a plurality of power supply rails to power the first Class-G amplifier at least partially based on a voltage across a load powered by the analog first output signal.
An electrical environment, comprising:
- a programmable controller, including:
- a processing system configured to generate a digital first internal signal at least partially according to programming instructions provided to the processing system,
- a first digital to analog (D/A) converter configured to convert the digital first internal signal to an analog first internal signal, and
- a first Class-G amplifier configured to:
- generate an analog first output signal by amplifying the analog first internal signal, and
- select one of a plurality of power supply rails to power the first Class-G amplifier at least partially based on a voltage across a load powered by the analog first output signal;
- and
- a first load powered by the analog first output signal.
Dependencies are inferred from the claim text.