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:
Dec. 17, 2013
Filed:
Aug. 18, 2010
Weixun Yan, Greifensee, CH;
Weixun Yan, Greifensee, CH;
AMS AG, Unterpremstaetten, AT;
Abstract
A switched amplifier circuit arrangement comprises a main amplifier (Amp) having an input terminal (In) and an output terminal (Out) and a regulating amplifier (rAmp) to set an input and an output operating point of the main amplifier (Amp). The regulating amplifier (rAmp) exhibits an auxiliary amplifier (A) having a first input terminal coupled to a reference level (Vref), a second input terminal (Ain) coupled to the output terminal (Out), and an output terminal (Aout) which is connected via a first switch (S) to the input terminal (In). Moreover, the switched amplifier circuit arrangement comprises a cancellation capacitor (Cc) coupled to the input terminal (In), a second switch (S) which is coupled between the output terminal (Out) and the cancellation capacitor (Cc) at a first circuit node (n), and a third switch (S) connected between the circuit node (n) and the reference level (Vref).