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.:
Date of Patent:
Jan. 06, 2015
Filed:
Sep. 29, 2011
Applicants:
Bojko Marholev, Lomma, SE;
Aminghasem Safarian, Tustin, CA (US);
Inventors:
Bojko Marholev, Lomma, SE;
Aminghasem Safarian, Tustin, CA (US);
Assignee:
Broadcom Corporation, Irvine, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
H04B 5/00 (2006.01); H03F 3/45 (2006.01); H03F 3/24 (2006.01);
U.S. Cl.
CPC ...
H03F 3/245 (2013.01); H03F 3/45179 (2013.01); H03F 2203/45424 (2013.01); H03F 2203/45421 (2013.01); H03F 3/45641 (2013.01); H04B 5/0075 (2013.01); H03F 2200/411 (2013.01);
Abstract
A power amplifier, supplied by a supply voltage, to drive an antenna to output a magnetic field, comprising a differential stage configured to output an output signal to drive the antenna, and a feedback stage configured to receive a common mode output voltage from the differential stage and to output a feedback voltage to regulate the output common mode signal to be proportional to the supply.