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. 29, 2019
Filed:
Dec. 29, 2016
Applicant:
Cirrus Logic International Semiconductor Ltd., Edinburgh, GB;
Inventor:
Bhupendra Singh Manola, Austin, TX (US);
Assignee:
Cirrus Logic, Inc., Austin, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03F 3/45 (2006.01); H03F 3/185 (2006.01); H03F 1/26 (2006.01); H03F 1/02 (2006.01); H03F 3/21 (2006.01); H04R 3/02 (2006.01); H03F 1/14 (2006.01); H03F 1/30 (2006.01);
U.S. Cl.
CPC ...
H03F 3/45636 (2013.01); H03F 1/0216 (2013.01); H03F 1/14 (2013.01); H03F 1/26 (2013.01); H03F 1/301 (2013.01); H03F 3/185 (2013.01); H03F 3/21 (2013.01); H03F 3/45273 (2013.01); H04R 3/02 (2013.01); H03F 2200/03 (2013.01); H03F 2200/135 (2013.01); H03F 2200/18 (2013.01); H03F 2200/372 (2013.01); H03F 2200/408 (2013.01); H03F 2200/453 (2013.01); H03F 2200/459 (2013.01); H03F 2200/555 (2013.01); H03F 2203/45632 (2013.01); H04R 2460/03 (2013.01);
Abstract
An amplifier may include a main signal path having a plurality of stages compensated by feedback elements, the plurality of stages comprising an output stage configured to receive electrical energy from a power supply and an auxiliary path independent of the main signal path and comprising an output stage compensation circuit configured to generate a compensation current proportional to noise present in the power supply and apply the compensation current to cancel a power supply-induced current present in at least one of the feedback elements.