Power management in transceivers

Patent metadata

Field	Value
Publication number	US-10224883-B2
Application number	US-201715659857-A
Country	US
Kind code	B2
Filing date	Jul 26, 2017
Priority date	Dec 19, 2011
Publication date	Mar 5, 2019
Grant date	Mar 5, 2019

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.

First claim

What is claimed is:

1. An apparatus, comprising:
a regulator component to provide a power supply voltage for a power amplifier;
a correlator component to:
determine an amplitude for a modulated carrier signal to be amplified by the power amplifier; and
control the regulator component to cause the provided power supply voltage to vary based on the amplitude of the modulated carrier signal; and

a modulated output data generator to:
output a first signal representing modulation data for the modulated carrier signal; and
output a second signal representing the amplitude of the modulated carrier signal, to cause a bias current for the power amplifier to vary based on the amplitude of the modulated carrier signal.

2. The apparatus of claim 1 , the power amplifier to comprise a transconductance amplifier.

3. The apparatus of claim 1 , the power amplifier comprised in a radio frequency (RF) transceiver.

4. A method, comprising:
providing a power supply voltage for a power amplifier;
determining an amplitude for a modulated carrier signal to be amplified by the power amplifier;
causing the provided power supply voltage to vary based on the amplitude of the modulated carrier signal;
outputting a first signal representing modulation data for the modulated carrier signal; and
outputting a second signal representing the amplitude of the modulated carrier signal, to cause a bias current for the power amplifier to vary based on the amplitude of the modulated carrier signal.

5. The method of claim 4 , the power amplifier to comprise a transconductance amplifier.

6. The method of claim 4 , the power amplifier comprised in a radio frequency (RF) transceiver.

7. An apparatus, comprising:
a power amplifier;
a regulator component to provide a power supply voltage for the power amplifier;
a correlator component to:
determine an amplitude for a modulated carrier signal to be amplified by the power amplifier; and
control the regulator component to cause the provided power supply voltage to vary based on the amplitude of the modulated carrier signal; and

a modulated output data generator to:
output a first signal representing modulation data for the modulated carrier signal; and
output a second signal representing the amplitude of the modulated carrier signal, to cause a bias current for the power amplifier to vary based on the amplitude of the modulated carrier signal.

8. The apparatus of claim 7 , the power amplifier to comprise a transconductance amplifier.

9. The apparatus of claim 7 , the power amplifier comprised in a radio frequency (RF) transceiver.

10. A wireless communication device, comprising:
a processing component;
a radio frequency (RF) transceiver comprising the apparatus of claim 7 ; and
an RF antenna coupled to the RF transceiver.

Assignees

• Intel Corp

Inventors

• Cowley Nicholas P
• Ali Isaac
• Barber William L

Classifications

• H03F3/24 Primary

  of transmitter output stages · CPC title

• H03F2203/20

  Indexing scheme relating to power amplifiers, e.g. Class B amplifiers, Class C amplifiers · CPC title

• H03G3/20

  Automatic control ({H03G3/005 takes precedence;} combined with volume compression or expansion H03G7/00) · CPC title

• H03F1/0211

  with control of the supply voltage or current · CPC title

• H03F2200/294

  the amplifier being a low noise amplifier [LNA] · CPC title