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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 10658979 B1

PDFFull Text
Date of Patent:
May. 19, 2020

Filed:

Nov. 20, 2018

Power amplifier with supply switching

Applicant:

Avago Technologies International Sales Pte. Limited, Singapore, SG;

Inventors:

Ramon A. Gomez, San Juan Capistrano, CA (US);

Jeffrey Lee, Irvine, CA (US);

Assignee:

Avago Technologies International Sales Pte. Limited, Singapore, SG;

Attorney:

Morgan, Lewis & Bockius LLP

Primary Examiner:

Henry Choe

Int. Cl.
CPC ...
H03F 3/20 (2006.01); H03F 1/02 (2006.01); H03G 1/00 (2006.01); H03F 3/193 (2006.01); H03F 1/30 (2006.01); H03F 3/21 (2006.01); H04B 1/16 (2006.01); H04B 3/54 (2006.01); H03F 3/00 (2006.01); H03G 3/30 (2006.01); H03F 3/195 (2006.01); H03F 3/24 (2006.01); H03F 3/45 (2006.01);
U.S. Cl.
CPC ...
H03F 1/0233 (2013.01); H03F 1/025 (2013.01); H03F 1/0227 (2013.01); H03F 1/305 (2013.01); H03F 3/005 (2013.01); H03F 3/193 (2013.01); H03F 3/195 (2013.01); H03F 3/211 (2013.01); H03F 3/245 (2013.01); H03F 3/45183 (2013.01); H03F 3/45475 (2013.01); H03G 1/0029 (2013.01); H03G 3/3042 (2013.01); H04B 1/16 (2013.01); H04B 3/544 (2013.01); H03F 2200/105 (2013.01); H03F 2200/372 (2013.01); H03F 2200/435 (2013.01); H03F 2200/507 (2013.01); H03F 2200/511 (2013.01); H03F 2200/541 (2013.01); H03F 2203/45644 (2013.01);
Abstract

A power amplifier with supply switching is provided. The power amplifier detects a magnitude of an outgoing broadband communication signal and determines whether the magnitude exceeds a predetermined voltage threshold. The power amplifier applies a first gain to the outgoing broadband communication signal using a first voltage supply rail when it is determined that the magnitude exceeds the predetermined voltage threshold and a second gain using a second voltage supply rail that is smaller than the first voltage supply rail when it is determined that the magnitude does not exceed the predetermined voltage threshold. The power amplifier produces an output signal from the outgoing broadband communication signal with the applied first gain or the applied second gain, wherein a current of the outgoing broadband communication signal is switched between the first voltage supply rail and the second voltage supply rail in response to the magnitude being detected.

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