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:
Oct. 16, 2018
Filed:
Nov. 27, 2016
Applicant:
Mediatek Inc., Hsin-Chu, TW;
Inventors:
Chien-Wei Tseng, Keelung, TW;
Ming-Da Tsai, Miaoli, TW;
Assignee:
MEDIATEK INC., Hsin-Chu, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 3/45 (2006.01); H03F 1/26 (2006.01); H03F 3/21 (2006.01); H03F 3/193 (2006.01); H03F 1/02 (2006.01); H03F 1/30 (2006.01); H03F 3/195 (2006.01); H03F 3/24 (2006.01);
U.S. Cl.
CPC ...
H03F 1/26 (2013.01); H03F 1/0261 (2013.01); H03F 1/301 (2013.01); H03F 3/193 (2013.01); H03F 3/195 (2013.01); H03F 3/21 (2013.01); H03F 3/245 (2013.01); H03F 3/45179 (2013.01); H03F 3/45071 (2013.01); H03F 3/45085 (2013.01); H03F 3/45183 (2013.01); H03F 2200/219 (2013.01); H03F 2200/225 (2013.01); H03F 2203/45144 (2013.01); H03F 2203/45154 (2013.01); H03F 2203/45172 (2013.01); H03F 2203/45542 (2013.01); H03F 2203/45621 (2013.01); H03F 2203/50 (2013.01);
Abstract
A power amplifier system includes a differential power amplifier and a bias circuit. The differential power amplifier is arranged for receiving a differential input pair to generate an output signal. The bias circuit is arranged for generating a bias voltage to bias the differential power amplifier, and the bias circuit comprises a source follower for receiving a reference voltage to generate the bias voltage.