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:
Apr. 15, 2014
Filed:
Mar. 06, 2012
Applicant:
Gabriel Rosca, Ploiesti, RO;
Inventor:
Gabriel Rosca, Ploiesti, RO;
Assignee:
Microchip Technology Incorporated, Chandler, AZ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03F 1/14 (2006.01); H03F 1/02 (2006.01); H03F 3/72 (2006.01);
U.S. Cl.
CPC ...
H03F 3/72 (2013.01);
Abstract
Switching error in an auto-zero offset amplifier is reduced by keeping a clock level to the auto-zero switches at an amplitude just enough to insure complete switching of the switches of the auto-zero offset buffer amplifier. A level shifting circuit provides the clock at the desired level control and a local voltage regulator provides a regulated voltage to the level shifting circuit.