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. 17, 1990
Filed:
Sep. 29, 1989
Miran Milkovic, Scotia, NY (US);
General Electric Company, Schenectady, NY (US);
Abstract
A switched-capacitance amplifier has a common terminal and an input signal terminal for receiving an input signal voltage therebetween, and it has an inverted output signal terminal for supplying, during each of a second series of separated time intervals interleaved without overlap with a first series of separated time intervals, an output voltage that is the negative of its input signal voltage. The switched-capacitance amplifier includes first and second capacitors. The switched-capacitance amplifier also includes a differential-input amplifier, having an output connection to the inverted output signal terminal, having a non-inverting input connection to the common terminal, having an inverting input connection, and having an input port between its non-inverting and inverting input connections. During each of the first series of separated time intervals the first and second plates of the first capacitor are respectively connected to the common terminal and to the input signal terminal, for charging the first capacitor to the input signal voltage; and the first and second plates of the second capacitor are respectively connected to the common terminal and to the inverting input connection of the differential-input amplifier, for charging the second capacitor to the input offset voltage error of that amplifier. During each of the second series of separated time intervals the first capacitor, the second capcitor and the input port of the differential input amplifier are connected in series between the inverted output signal terminal and the common terminal.