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:
Feb. 25, 2020
Filed:
Jan. 18, 2019
Infineon Technologies Ag, Neubiberg, DE;
Peter Bogner, Wernberg, AT;
Gerhard Maderbacher, Gleisdorf, AT;
Infineon Technologies AG, Neubiberg, DE;
Abstract
A circuit for processing an input-signal voltage, and including an input capacitance coupled between an input node of the circuit and a sense node of a comparator; a reference capacitance coupled to the sense node of the comparator; and a common mode switch coupled between the sense node and a reference node of the comparator. The circuit is configured to have the input capacitance set to a reference input voltage while the common mode switch is closed, and the input node set to the input-signal voltage while the common mode switch is open. The reference capacitance includes a plurality of capacitances, at least one of which is provided as a switched capacitance that is selectively controllable to configure the plurality of capacitances. A switched capacitance controller is configured to control the switched capacitance so as to compensate, at the sense node, a comparator offset voltage.