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US 2026/0121585 A1Published application
Amplifier using varying pulse widths
OwnerAditya Agrawal, Aditya Sundar +1inventors
InventorsAditya Agrawal, Aditya Sundar, Sumit Dubey
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Abstract
In an embodiment, a device includes: modulation circuitry; switch circuitry having a first terminal, a second terminal, and a third terminal, the first terminal of the switch circuitry coupled to the modulation circuitry; pulse circuitry having a first terminal and a second terminal, the first terminal of the pulse circuitry coupled to the second terminal of the switch circuitry; and an output stage coupled to the third terminal of the switch circuitry and the second terminal of the pulse circuitry.
Claims25
A device comprising:
- modulation circuitry;
- switch circuitry having a first terminal, a second terminal, and a third terminal, the first terminal of the switch circuitry coupled to the modulation circuitry;
- pulse circuitry having a first terminal and a second terminal, the first terminal of the pulse circuitry coupled to the second terminal of the switch circuitry;
- and
- an output stage coupled to the third terminal of the switch circuitry and the second terminal of the pulse circuitry.
2 more elements
A device comprising:
- modulation circuitry capable of modulating audio signals to generate differential signals;
- and
- pulse circuitry coupled to the modulation circuitry, the pulse circuitry capable of:
- adjusting a pulse width of periodic pulses of the differential signals;
- setting outputs using the differential signals;
- increasing the pulse width of the periodic pulses across a plurality of cycles of the differential signals;
- and
- after a determination that the pulse width is greater than or equal to a threshold pulse width, stop adjusting the pulse width of the differential signals.
5 more elements
A method comprising:
- receiving an audio signal;
- modulating the audio signal to produce a modulated signal having a pulse width;
- setting the pulse width of the modulated signal to a minimum pulse width;
- providing the modulated signal having the minimum pulse width to a speaker;
- after providing the modulated signal to the speaker, monotonically increasing the pulse width of the modulated signal;
- and
- after the pulse width of the modulated signal is greater than or equal to a threshold, playing audio of the audio signal using the speaker.
4 more elements
Dependencies are inferred from the claim text.