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. 08, 2013
Filed:
Aug. 24, 2011
Applicant:
Vincenzo Leonardo, Wädenswil, CH;
Inventor:
Vincenzo Leonardo, Wädenswil, CH;
Assignee:
AMS AG, Unterpremstaetten, AT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 1/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for offset compensation of a switched-capacitor amplifier comprises a reset phase (φ) and at least one working phase (φ). An output voltage (Vout) of the amplifier (amp) is fed according to a damped feedback loop gain (AB()) to a first amplifier input (ain) in the reset phase (φ) as a function of an offset voltage (Voff). In the least one working phase (φ), an offset of the amplifier (amp) is compensated as a function of the offset voltage (Voff) by superimposing the output voltage (Vout) onto an input voltage (Vin) of the amplifier (amp) according to a loop gain (AB()).