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:
Sep. 01, 2015

Filed:

Sep. 18, 2012
Applicants:

Minsheng Wang, Irvine, CA (US);

Iuri Mehr, Irvine, CA (US);

Jungwoo Song, Irvine, CA (US);

Vinay Chandrasekhar, Irvine, CA (US);

Inventors:

Minsheng Wang, Irvine, CA (US);

Iuri Mehr, Irvine, CA (US);

Jungwoo Song, Irvine, CA (US);

Vinay Chandrasekhar, Irvine, CA (US);

Assignee:

Broadcom Corporation, Irvine, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 99/00 (2009.01); H03F 1/34 (2006.01); H03F 1/32 (2006.01); H03F 3/187 (2006.01); H03F 3/45 (2006.01); H03G 3/30 (2006.01);
U.S. Cl.
CPC ...
H03F 1/34 (2013.01); H03F 1/3211 (2013.01); H03F 3/187 (2013.01); H03F 3/45475 (2013.01); H03G 3/3005 (2013.01); H03F 2203/45521 (2013.01);
Abstract

Systems and methods are disclosed to provide automatic power control for a driver circuit. Embodiments disclosed herein enable a driver circuit to automatically decrease the gain of amplified input signals when output power exceeds a threshold. Further, embodiments disclosed herein enable a driver circuit to automatically increase the gain of amplified input signals when battery supply voltage drops to avoid unwanted output signal distortion. By using reference signals for battery power and amplified signal input, the amplifiers of the driver circuit can be automatically adjusted until an equilibrium is reached.


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