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US 2013/0154732 A1Published application
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 reduce average power dissipation in transceiver stages such as power amplifiers and low noise amplifiers (LNAs) that process signals of varying output amplitudes. Power dissipation may be reduced by varying the supply voltage in sympathy with the amplitude of the signal and/or the stage current density which may also be varied in sympathy with the signal amplitude.
Claims26
An apparatus, comprising:
- a first correlator component operative to determine an amplitude for an output signal, the output signal characterized by a wide dynamic range exhibiting variation in amplitude;
- and
- a regulator component coupled with the first correlator component, the regulator component operative to:
- generate a power supply voltage based on the amplitude of the output signal;
- and
- power a gain stage to amplify the output signal using the power supply voltage.
3 more elements
A method, comprising:
- determining the amplitude of an output signal, the output signal characterized by a wide dynamic range exhibiting variation in amplitude;
- and
- setting a supply voltage based on the amplitude of the output signal;
- and
- powering a gain stage to amplify the output signal using the supply voltage.
2 more elements
A system, comprising:
- a data generator operative to generate an output signal and a signal indicative of the amplitude of the output signal;
- a voltage correlator component communicatively coupled with the data generator, the voltage correlator component operative to determine a value for a power supply voltage based on the amplitude of the output signal;
- and
- a regulator component coupled with the voltage correlator component, the regulator component operative to:
- receive an input voltage;
- convert the input voltage to the power supply voltage;
- and
- power a gain stage to amplify the output signal using the power supply voltage.
5 more elements
Dependencies are inferred from the claim text.