Apparatus and method for processing an input-signal voltage

US10187047B2 · kind B2 · utility

Assignee

• Infineon Technologies AG · DE

Inventors

• Peter Bogner · Wernberg, AT
• Gerhard Maderbacher · Gleisdorf, AT

Key dates

• Filing date: Mar 28, 2017
• Grant date: Jan 22, 2019
• Expiry date: Mar 28, 2037

Classification

• Technology area (CPC H): Electricity
• CPC primary: H03H19/004
• WIPO field: Basic communication processes
• WIPO sector: Electrical engineering

Abstract

A circuit for processing an input-signal voltage comprises an input capacitance coupled between an input node of the circuit and a sense node of a comparator and a reference capacitance coupled to the sense node of the comparator. A method for processing an input-signal voltage comprises configuring a reference capacitance coupled to an input capacitance; during a charge phase, charging the reference capacitance to a first-level reference voltage; and, during an operative phase, setting the input capacitance to an input-signal voltage to obtain, at the sense node, a sense voltage.