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.

Date of Patent:
May. 07, 2019

Filed:

Sep. 30, 2015
Applicant:

Skyworks Solutions, Inc., Woburn, MA (US);

Inventors:

Anthony Francis Quaglietta, Methuen, MA (US);

Joseph A Cuggino, Westford, MA (US);

Xuanang Zhu, Lexington, MA (US);

Assignee:

Skyworks Solutions, Inc., Woburn, MA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03F 3/04 (2006.01); H03F 1/52 (2006.01); H03F 3/19 (2006.01); H03F 1/02 (2006.01); H03F 3/195 (2006.01); H03F 3/24 (2006.01);
U.S. Cl.
CPC ...
H03F 1/52 (2013.01); H03F 1/0272 (2013.01); H03F 3/19 (2013.01); H03F 3/195 (2013.01); H03F 3/245 (2013.01); H03F 2200/18 (2013.01); H03F 2200/408 (2013.01); H03F 2200/435 (2013.01); H03F 2200/444 (2013.01); H03F 2200/451 (2013.01);
Abstract

Peak voltage limiting circuits and method for power amplifiers. A power amplifier and/or a voltage limiting circuit includes a diode circuit coupled to an output of an amplification stage, the diode circuit configured to provide a conductive path from the output when an output voltage exceeds a selected value. The power amplifier and/or voltage limiting circuit also includes a sink circuit coupled to the diode circuit and a bias circuit, the sink circuit configured to reduce a bias voltage provided by the bias circuit when the output voltage exceeds the selected value to thereby limit the output voltage.


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