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. 31, 2018
Filed:
Jun. 27, 2016
Applicant:
Cactus Semiconductor, Inc., Chandler, AZ (US);
Inventor:
Scott Cameron McLeod, Oro Valley, AZ (US);
Assignee:
Cactus Semiconductor, Inc., Chandler, AZ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B 5/00 (2006.01); H03F 1/26 (2006.01); H03F 3/393 (2006.01); H03F 3/45 (2006.01); A61B 5/0402 (2006.01); A61B 5/0488 (2006.01); A61B 5/0476 (2006.01);
U.S. Cl.
CPC ...
H03F 1/26 (2013.01); A61B 5/0402 (2013.01); A61B 5/0476 (2013.01); A61B 5/0488 (2013.01); A61B 5/7203 (2013.01); A61B 5/7228 (2013.01); H03F 3/393 (2013.01); H03F 3/45179 (2013.01); H03F 3/45475 (2013.01); H03F 2200/261 (2013.01); H03F 2200/271 (2013.01); H03F 2203/45288 (2013.01);
Abstract
A chopper stabilized amplifier that utilizes a multi-frequency chopping signal to reduce chopping artifacts. By utilizing a multi-frequency chopping signal, the amplifier DC offset and flicker noise are translated to the higher chopping frequencies but are also smeared, or spread out in frequency and consequently lowered in amplitude. This lower amplitude signal allows for less stringent filtering requirements.