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:
Jul. 02, 2019
Filed:
Nov. 14, 2017
Applicant:
Tymphany HK Limited, Wan Chai, HK;
Inventor:
Sebastiaan de Vries, Shenzhen, CN;
Assignee:
Tymphany HK Limited, Wan Chai, HK;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 3/217 (2006.01); H03F 1/26 (2006.01); H03F 3/45 (2006.01); H03F 3/187 (2006.01); H03F 1/32 (2006.01);
U.S. Cl.
CPC ...
H03F 1/26 (2013.01); H03F 1/3211 (2013.01); H03F 3/187 (2013.01); H03F 3/2175 (2013.01); H03F 3/45475 (2013.01); H03F 2200/03 (2013.01); H03F 2200/135 (2013.01); H03F 2200/411 (2013.01); H03F 2203/45051 (2013.01); H03F 2203/45116 (2013.01);
Abstract
An amplifier system includes a Class-D power amplifier integrated circuit (IC) that is nested inside a feedback loop of a low noise differential operational amplifier (op-amp).