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:
Feb. 25, 2020
Filed:
Dec. 14, 2017
Applicant:
Mediatek Inc., Hsin-Chu, TW;
Inventors:
Assignee:
MEDIATEK INC., Hsin-Chu, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 3/45 (2006.01); H03F 1/32 (2006.01); H03F 3/21 (2006.01); H03F 1/22 (2006.01); H03F 3/30 (2006.01);
U.S. Cl.
CPC ...
H03F 1/3211 (2013.01); H03F 1/223 (2013.01); H03F 3/21 (2013.01); H03F 3/3023 (2013.01); H03F 3/4521 (2013.01); H03F 3/45192 (2013.01); H03F 3/45219 (2013.01); H03F 2200/165 (2013.01); H03F 2200/168 (2013.01); H03F 2203/45134 (2013.01); H03F 2203/45296 (2013.01); H03F 2203/45298 (2013.01); H03F 2203/45302 (2013.01);
Abstract
The present invention provides a class AB amplifier, wherein the class AB amplifier includes a cascode stage with a filter and an output stage. The cascode stage with the filter is arranged for receiving an input signal to generate a first driving signal and a second driving signal, wherein the filter filters the input signal to generate an filtered input signal, and at least one of the first driving signal and the second driving signal is generated according to the filtered input signal. The output stage is coupled to the cascode stage, and is arranged for generating an output signal according to the first driving signal and the second driving signal.