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 9048793 B1

PDF
Full Text
Expired
Date of Patent:
Jun. 02, 2015

Filed:

May. 05, 2014
Applicant:

Marvell World Trade Ltd., St. Michael, BB;

Inventors:

Poh Boon Leong, Singapore, SG;

Ping Song, Singapore, SG;

Sehat Sutardja, Los Altos Hills, CA (US);

Assignee:

MARVELL WORLD TRADE LTD., St. Michael, BB;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 3/26 (2006.01); H03F 1/22 (2006.01); H03F 3/193 (2006.01); H03F 3/24 (2006.01);
U.S. Cl.
CPC ...
H03F 3/265 (2013.01); H03F 1/223 (2013.01); H03F 3/193 (2013.01); H03F 3/245 (2013.01); H03F 2200/408 (2013.01); H03F 2200/534 (2013.01); H03F 2200/537 (2013.01); H03F 2200/541 (2013.01); H03F 2200/306 (2013.01);
Abstract

A power amplifier configured to receive an AC input signal and output, based on the AC input signal, an output voltage via a first output voltage terminal and a second output voltage terminal. The power amplifier includes a first transistor and a second transistor connected in a push-pull configuration, a first inductor, a second inductor, and a first capacitor. The first output voltage terminal is located between the first inductor and the first transistor. The second output voltage terminal is located between the second transistor and ground. The first capacitor is configured to provide a first circuit path between the first output voltage terminal and the second output voltage terminal. The first circuit path functions as a short circuit for even harmonics of a fundamental frequency of the AC input signal but does not function as a short circuit for the fundamental frequency of the AC input signal.


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