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US 11,588,454 B2Granted
Power management in transceivers
AssigneeIntel Corporation
InventorsNicholas P. Cowley, Isaac Ali, William L. Barber
Life of this patent
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Abstract
Various embodiments are directed to apparatuses and methods to generate a first signal representing modulation data and a second signal representing an amplitude of the modulation data, the first signal and the second signal to depend on an output signal and vary a power supply voltage to a gain stage in proportion to the amplitude of the modulation data.
Claims17
An apparatus, comprising:
- circuitry to provide a power supply voltage for a power amplifier based on an amplitude for a modulated carrier signal and a feedback loop for a first circuit, the circuitry comprising:
- the first circuit to determine the amplitude for the modulated carrier signal to be amplified by the power amplifier and to generate a pulse-width modulated signal based on the amplitude for the modulated carrier signal and the feedback loop;
- and
- a second circuit to output an amplitude varying bias signal based on the pulse-width modulated signal, to provide a bias signal to the power amplifier to cause the provided power supply voltage to vary based on the amplitude of the modulated carrier signal.
1 more element
A method, comprising:
- determining an amplitude for a modulated carrier signal to be amplified by a power amplifier;
- generating, by a pulse-width modulated generator circuit, a pulse-width modulated signal based on the amplitude for the modulated carrier signal and a feedback loop for the pulse-width modulated generator circuit;
- and
- outputting an amplitude varying bias signal based on the pulse-width modulated signal, to provide a bias signal to the power amplifier to cause a power supply voltage to vary based on the amplitude of the modulated carrier signal.
1 more element
An apparatus, comprising:
- a power amplifier;
- tracking circuitry to provide a power supply voltage for the power amplifier based on an amplitude for a modulated carrier signal and a feedback loop for a first circuit, the circuitry comprising:
- the first circuit to determine the amplitude for the modulated carrier signal to be amplified by the power amplifier and to generate a pulse-width modulated signal based on the amplitude for the modulated carrier signal and the feedback loop;
- and
- a second circuit to output an amplitude varying bias signal based on the pulse-width modulated signal, to provide a bias signal to the power amplifier to cause the provided power supply voltage to vary based on the amplitude of the modulated carrier signal;
- and
- bias circuitry coupled with the power amplifier to provide a second bias signal to the power amplifier.
4 more elements
Dependencies are inferred from the claim text.